3

ccInternal adjustment scale.a

ATEX/IECEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from 0.8 mBar to 8 mBar.a Wetted parts NACE MR-01-75 complianta

PERSEUS DIFFERENTIAL

PRESSURE

The latest innovation to our range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

DF61 & DF62 ATEX & IECEx Exd, Exia & INDUSTRIAL DIFFERENTIAL PRESSURE SWITCH

FEATURESDIFFERENTIAL

Wetted parts NACE MR-01-75 complianta

ADJUSTMENTRANGE(BAR D)

1.0 – 8.0

0.5 – 3.5

0.15 – 1.15

0.05 – 0.95

25 – 225 mBar

25 – 50 mBar

15 – 55 mBar

4 – 16 mBar

1 – 5 mBar

0.4 – 1.8 mBar

28

28

28

10

10

10

0.5

0.5

0.5

0.5

MAXIMUM WORKING

PRESSURE ONE SIDED (BAR D)

14

14

14

7

7

7

0.35

0.35

0.35

0.35

DEADBAND FIXED

(Mbar G)

100 - 400

50 - 250

50 - 100

15 - 55

7 - 20

5 - 7

1.5 – 7.5

0.75 – 2.0

0.25 – 1.0

0.2 – 0.3

SPRINGCODE

W

Q

G

W

G

T

B

G

R

T

DIAPHRAGMCODE

01SB

01SB

01SB

03SB

03SB

03SB

08SB

08SB

08SB

08SB

MAXIMUM WORKING

PRESSURE EQUALISED

(BAR D)

Temperature Limitations Diaphragm code : 01SB

Viton : -20 to +150°C

Nitrile : -30 to +90°CDiaphragm code : 02SB, 03SB & 08SB

Viton : -10 to +150°C

Nitrile : -25 to +95°C

Wetted Parts - Metallic316 stainless steel

Process Connections : Diaphragm codes 01SB, 02SB & 03SB : 1/4” or 1/2” BSP.P or NPT Female

Diaphragm code 08SB as table overleaf.

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PART NUMBER BREAKDOWNELECTRICAL CONNECTION_ = M20 LEAVE BLANKC = 1/2” NPT ADAPTOR F = M25 ADAPTOR

TYPEDF6 = STANDARD DP

E.G. DR6 = RESISTOROPTION

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDT9 = HIGH DEADBANDDUAL SWITCHES ARE MECHANICALLY LINKEDTO PROVIDE DPDT

SPRING CODEPLEASEREFER TORANGE TABLE

DIAPHRAGMCODEPLEASEREFER TORANGE TABLE

BRACKETA = STD - 01SBE = 2” PIPE BKT - 08SBG = STD - 02SB & 03SBP = 2” PIPE BKT - 02SB&03SBW = STD - 08SBT = 2” PIPE BKT - 08SB

SWITCHCASE MATERIALA = BLACK ANODISED ALUMINIUM

CERTIFICATION O = ATEX/IECEx Ex ia INTRINSICALLY SAFEB = ATEX/IECEx Ex d FLAMEPROOFA = INDUSTRIAL / MARINE

DIAPHRAGM MATERIAL1 = NITRILE2 = VITON

PROCESS CONNECTION - DIAHPHRAGM CODES 08SB1 = 1/4” O/D TUBE - POSITIONAL ELBOW - DP2 = 1/4” O/D TUBE - POSITIONAL TEE - DP9 = SPECIALA = 6MM O/D TUBE POSITIONAL ELBOW - DPC = 8MM O/D TUBE POSITIONAL ELBOW - DPE = 10MM O/D TUBE POSITIONAL ELBOW - DPG = 12MM O/D TUBE POSITIONAL ELBOW - DP

J = 1/4” BSP.P FEMALE STRAIGHT - DPL = 1/4” BSP.T FEMALE STRAIGHT - DPN = 1/4” BSP.P MALE STRAIGHT - DPQ = 1/4” NPT FEMALE STRAIGHT - DPS = 1/4” NPT MALE STRAIGHT - DPU = 1/2” NPT FEMALE STRAIGHT - DP

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

PROCESS CONNECTION DIAPHRAGM CODES 01SB,02SB & 03SB FEMALE1 = 1/4” BSP.P - DP2 = 1/4” NPT - DPA = 1/2” BSP.P - DP C = 1/2” NPT - DP

D F 6 1 A B / 2 W 0 1 S B 1 / A B _

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PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1060 | issue 1

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PERSEUS VACUUM

The latest innovation to our range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

VF61 & VF62 ATEX & IECEx Exd, Exia & INDUSTRIAL VACUUM SWITCH

FEATURES

VACUUM

Internal adjustment scale.a

ATEX/IECEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from -0.4 mBar to -950 mBar.a Wetted parts NACE MR-01-75 complianta

ADJUSTMENTRANGE

0.05 – 0.95 Bar

25 – 225 mBar

25 – 50 mBar

15 – 55 mBar

4 – 16 mBar

1 – 5 mBar

0.4 – 1.8 mBar

MINIMUM WORKING PRESURE

(BAR)

-1

-1

-1

-0.35

-0.35

-0.35

-0.35

MAXIMUM WORKING PRESSURE

(BAR)

7

7

7

0.35

0.35

0.35

0.35

DEADBAND FIXED

(Mbar G)

15 - 55

7 - 20

5 - 7

1.5 – 7.5

0.75 – 2.0

0.25 – 1.0

0.2 – 0.3

SPRINGCODE

W

G

T

B

G

R

T

DIAPHRAGMCODE

03SB

03SB

03SB

08SB

08SB

08SB

08SB

PART NUMBER BREAKDOWN ELECTRICAL CONNECTION_ = M20 LEAVE BLANKC = 1/2” NPT ADAPTORF = M25 ADAPTOR

TYPEVF6 = VACUUM

E.G. DR6 = RESISTOR OPTION

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDT9 = HIGH DEADBAND DUAL SWITCHES ARE MECHANICALLY LINKED TO PROVIDE DPDT

SPRING CODEPLEASE REFER TO RANGE TABLE

DIAPHRAGM CODEPLEASE REFER TO RANGE TABLE

BRACKETE = 2” PIPE BKT - 08SBG = STD 02SB & 03SBP = 2” PIPE BKT - 02SB& 03SBW = STD - 08SBT = 2” PIPE BKT 08SB

V F 6 1 A B / 2 W 0 3 S B 1 / A B _SWITCHCASE MATERIALA = BLACK ANODISED ALUMIMIUM

CERTIFICATIONO = ATEX/IECEx Exia INTRINSICALLY SAFEB = ATEX/IECEx Exd FLAMEPROOFA = INDUSTRIAL / MARINE

DIAPHRAGM MATERIAL1 = NITRILE2 = VITON

PROCESS CONNECTION DIAPHRAGM CODE 03SB FEMALE1 = 1/4” BSP.P - DP2 = 1/4” NPT - DP3 = 1/4” BSP.P - PR 4 = 1/4” NPT - PR5 = 1/4” BSP.P - VAC 6 = 1/4” NPT - VACA = 1/2” BSP.P - DP B = 1/2” BSP.P - PR/VC = 1/2” NPT - DP D = 1/2” NPT - PR/V

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

PROCESS CONNECTION - DIAPHRAGM CODE 08SB5 = 1/4” O/D TUBE - POSITIONAL ELBOW - VAC9 = SPECIALB = 6MM O/D TUBE POSITIONAL ELBOW - VACD = 8MM O/D TUBE POSITIONAL ELBOW VACF = 10MM O/D TUBE POSITIONAL ELBOW - VACH = 12MM O/D TUBE POSITIONAL ELBOW - VAC

K = 1/4” BSP.P FEMALE STRAIGHT - VACM = 1/4” BSP.T FEMALE STRAIGHT - VACP = 1/4” BSP.P MALE STRAIGHT -VACR = 1/4” NPT FEMALE STRAIGHT - VACT = 1/4” NPT MALE STRAIGHT - VACV = 1/2” NPT FEMALE STRAIGHT - VAC

Temperature Limitations Viton : -10 to +150°C

Nitrile : -25 to +95°C

Wetted Parts - Metallic316 stainless steelProcess Connections : Diaphragm code 03SB : 1/4” or 1/2” BSP.P or NPT Female.Diaphragm code 08SB as table above.

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1069 | issue 1

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PERSEUS LOW - MEDIUM - HIGH TEMPERATURE

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

TF61 & TF62 PERSEUS ATEX /IECEx OR TRI-CERTIFIED WITH AEx (NEC505) Exd, Exia & INDUSTRIAL TEMPERATURE SWITCH

FEATURES

TEMPERATURE

Internal adjustment scale.a

ATEX/IECEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from -10 to +240°Ca Wetted parts NACE MR-01-75 complianta

Repeatibility : +/-1.5% of range (at operating temperature up to 40°C)Calibration rate : without thermowell 2°C per minute rate of change.Max. working pressure : 35 bar standard. 420 bar high pressure

Temperature Limitations :Ambient : -20 to +85°C standardProcess : -20 to max on tableStorage : -20 to +85°C

ADJUSTMENT RANGE (OC)

MAXIMUM TEM-PERATURE (OC)

DEADBAND - FIXED WITH

THERMOWELL (OC)

TEMPERATURE CODE

THERMOWELL “U” DIMENSIONS

IN MM-10 TO +40 100 <10 L1 38, 45, 50, 60*

75, 100, 125, 150, 175, 200, 225, 250, 300, 350, 400, 600, 660, 800, 1000 &

1200

*STANDARDCUSTOM LENGTHS

AVAILABLE

0 TO 50 100 <10 L225 TO 75 125 <10 M150 TO 100 150 <10 M275 TO 125 175 <10 M3

100 TO 150 200 <10 M4125 TO 175 200 <10 M5150 TO 200 250 <10 H1175 TO 225 280 <10 H2200 TO 240 280 <10 H3

PART NUMBER BREAKDOWNMICROSWITCHTF61 = 1 X SPDTTF62 = 2 X SPDTDual switches are mechanically linked to give DPDT switching action

“U” DIMENSIONS WITH THERMOWELL

P = WITH THERMOWELLS = WITHOUT THERMOWELL

ELECTRICAL CONNECTION_ = M20 LEAVE BLANKC = 1/2” NPT ADAPTORF = M25 ADAPTOR

X = NO BRACKET (STD)C = BRACKET

T F 6 1 1 A B / 0 6 0 M 1 / P B 1 X B _

1 = WITH THERMOWELL2 = NO THERMOWELL

CASE MATERIAL1 = ALUMINIUM SWITCHCASE

CERTIFICATIONA = INDUSTRIALO = ATEX/IECEx Exia INTRINSICALLY SAFEB = ATEX/IECEx Exd FLAMEPROOFC = TRI-CERTIFIED Exd FLAMEPROOFD = TRI-CERTIFIED Exia INTRINSIC. SAFE

TEMPERATURE CODEREFER TO TABLE ABOVE

THERMOWELL/STEM THREADA = 1/2” BSP.P B = 1/2” NPTC = 3/8” BSP.P D = 3/4” BSP.PE = 3/4” NPT F = 1” BSP.PG = 1” NPT K = 1/2” BSP.TO = SPECIAL CONNECTION (FLANGE THEROWELL OR BRACKET MOUNTED)

THERMOWELL1=316 ST.ST (STD)4=HIGH PRESSURE8=SLIDING GLAND9=BRACKET MOUNTEDO=FLANGE OR SPECIAL THERMOWELL

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1068 | issue 1

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PERSEUS ULTRALOW PRESSURE

The latest innovation to our range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

PF61 & PF62 ATEX & IECEx Exd, Exia & INDUSTRIAL ULTRA LOW PRESSURE SWITCH

FEATURES

ULTRA LOWPRESSURE

Internal adjustment scale.a

ATEX/IECEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from 0.4 mBar to 55 mBar.a Wetted parts NACE MR-01-75 complianta

ADJUSTMENTRANGE(BAR D)

15 – 55 mBar

4 – 16 mBar

1 – 5 mBar

0.4 – 1.8 mBar

MINIMUM WORKING PRESSURE

(BAR)

-0.35

-0.35

-0.35

-0.35

MAXIMUM WORKING PRESSURE

(BAR)

0.35

0.35

0.35

0.35

DEADBAND FIXED

(Mbar G)

1.5 – 7.5

0.75 – 2.0

0.25 – 1.0

0.2 – 0.3

SPRINGCODE

B

G

R

T

DIAPHRAGMCODE

08SB

08SB

08SB

08SB

Temperature Limitations

Viton : -10 to +150°C

Nitrile : -25 to +95°C

Wetted Parts - Metallic316 stainless steel

Process Connections : Diaphragm code 08SB as table above.

PART NUMBER BREAKDOWN ELECTRICAL CONNECTION_ = M20 LEAVE BLANKC = 1/2” NPT ADAPTORF = M25 ADAPTOR

TYPEPF6 = ULTRA LOW PRESSURE

E.G. PR6 = RESISTOR OPTION

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDT9 = HIGH DEADBAND DUAL SWITCHES ARE MECHANICALLY LINKED TO PROVIDE DPDT

SPRING CODEPLEASE REFER TO RANGE TABLE

DIAPHRAGM CODEPLEASE REFER TO RANGE TABLE

BRACKETW = STD - 08SBT = 2” PIPE BKT 08SB

P F 6 1 A B / 2 R 0 8 S B 1 / W B _SWITCHCASE MATERIALA = BLACK ANODISED ALUMIMIUM

CERTIFICATIONO = ATEX/IECEx Exia INTRINSICALLY SAFEB = ATEX/IECEx Exd FLAMEPROOFA = INDUSTRIAL / MARINE

DIAPHRAGM MATERIAL1 = NITRILE2 = VITON

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

PROCESS CONNECTION - DIAPHRAGM CODES 08SB4 = 1/4” O/D TUBE - POSITIONAL ELBOW - PR9 = SPECIALB = 6MM O/D TUBE POSITIONAL ELBOW - PR/VACD = 8MM O/D TUBE POSITIONAL ELBOW PR/VACF = 10MM O/D TUBE POSITIONAL ELBOW - PR/VACH = 12MM O/D TUBE POSITIONAL ELBOW - PR/VAC

K = 1/4” BSP.P FEMALE STRAIGHT - PR/VACM = 1/4” BSP.T FEMALE STRAIGHT - PR/VACP = 1/4” BSP.O MALE STRAIGHT - PR/VACR = 1/4” NPT FEMALE STRAIGHT - PR/VACT = 1/4” NPT MALE STRAIGHT - PR/VACV = 1/2” NPT FEMALE STRAIGHT - PR/VAC

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1067 | issue 1

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PERSEUS MEDIUM

PRESSURE

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

PF61 & PF62 PERSEUS ATEX/ IECEx OR TRI-CERTIFIED WITH AEx (NEC 505) Exd, Exia & INDUSTRIAL PRESSURE SWITCH

FEATURES

Internal adjustment scale.a

ATEX/IECEx/AEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

MEDIUM PRESSURE

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards. Wetted parts 316 stainless steel.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from 100 mBar to 34 Bar.a Wetted parts NACE MR-01-75 complianta

MEDIUM PRESSURE RANGES Viton or Nitrile diaphragm

ADJUSTMENTRANGE (BAR)

0.1* - 1.5

1.2 - 4.2

0.2 - 3.0

3.0 - 9.0

0.4 - 6.0

6 - 18

8 - 34

ADJUSTMENTRANGE (PSI)

1.5 - 25.5

20 - 60

5 - 45

45 - 125

5 - 185

90 - 250

115 - 495

MAX. WORKINGPRESSURE BAR

12

12

25

25

50

50

50

DEADBAND BARNITRILE VITON

0.04 - 0.15 0.05 - 0.20

0.1 - 0.25 0.2 - 0.5

0.08 - 0.25 0.1 - 0.4

0.3 - 0.50 0.3 - 0.65

0.1 - 0.70 0.45 - 0.75

0.5 - 1.0 0.9 - 1.6

0.5 - 1.75 0.5 - 2.0

DIAPHRAGMCODE

0

0

2

2

1

1

1

SPRINGCODE

B

W

B

W

B

W

X

* WITH DUAL MICROSWITCHES LOWEST SETTING IS 0.2 BAR - USE RANGE 0.2 - 2.0 BAR

PART NUMBER BREAKDOWN

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDT9 = HIGH DEADBAND DUAL SWITCHES ARE MECHANICALLY LINKED TO PROVIDE DPDT SWITCHING

SPRING CODEPLEASE REFER TO RANGE TABLE

DIAPHRAGM CODEPLEASE REFER TO RANGE TABLE

BRACKETX = STD - NO BRACKETH = 2” PIPER = XPB SPECIAL

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

SWITCHCASEPF6 = STANDARDPR6 = RESISTOR OPTION

ELECTRICALCONNECTION_ = M20 LEAVEBLANKC = 1/2” NPTADAPTOR F = M25ADAPTOR

P F 6 1 A B / 2 W 1 0 2 / S 1 X B _

SWITCHASE MATERIALA = BLACK ANODISED ALUMINIUM

CERTIFICATIONO = ATEX/IECEx Exia INTRINSIC. SAFEB = ATEX/IECEx Exd FLAMEPROOFA = INDUSTRIAL / MARINEC = TRI-CERTIFIED Exd FLAMEPROOFD = TRI-CERTIFIED Exia INTRINSIC.SAFE

DIAPHRAGM

1 = NITRILE2 = VITON

PROCESS CONNECTIONS1 = 1/4” BSP.P FEMALE - 316SSM1 = 1/4” BSP.P FEMALE - MONEL 400S2 = 1/4” NPT FEMALE - 316SSM2 = 1/4” NPT FEMALE - MONEL 400S5 = 1/2” BSP.P FEMALE - 316SSM5 = 1/2” BSP.P FEMALE - MONEL 400S6 = 1/2” NPT FEMALE - 316SSM6 = 1/2” NPT FEMALE - MONEL 400

FOR MALE CONNECTION USE S1 NOTE MONEL NOT AVAILABLE ON MALE

PROCESS10 = FEMALE PROCESS22 = 1/2” BSP.P MALE24 = 1/2” NPT MALE

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1065 | issue 1

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PERSEUS LOW PRESSURE

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

PF61 & PF62 PERSEUS ATEX/IECEx Exd, Exia & INDUSTRIAL PRESSURE SWITCH

FEATURES

Internal adjustment scale.a

ATEX/IECEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

LOW PRESSURE

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from 8 mBar to 250 mBar.a

Wetted Parts : 316 sainless steelDiahphragm : Viton (std) or Nitrile

Process Connection : 1/4” BSP.P or 1/4” NPT Female

Process temperature limitations :

Viton : -10 to +150°C

Nitrile : -25 to +95°C

Wetted parts NACE MR-01-75 complianta

LOW PRESSURE RANGES Viton or Nitrile diaphragm

ADJUSTMENTRANGE MBAR

50 - 250

8 - 128

ADJUSTMENTRANGE “WG

20 - 100

5 - 50

MAX. WORKINGPRESSURE (BAR)

7

5

DEADBANDMBAR

5 - 10

4 - 6

DIAPHRAGMCODE

3

4

SPRINGCODE

B

B

PART NUMBER BREAKDOWN ELECTRIC CONNECTION_ = M20 LEAVE BLANKC = 1/2” NPT ADAPTORF = M25 ADAPTOR

SWITCHASEPF6 = STANDARDPR6 = WITHRESISTORS

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDTDUAL SWITCHES ARE MECHANICALLY LINKED TO PROVIDE DPDT SWITCHING

SPRING CODEPLEASE REFER TO RANGE TABLE

DIAPHRAGM CODEPLEASE REFER TO RANGE TABLE

BRACKETC = STANDARDJ = 2” PIPE BRK

P F 6 1 A B / 8 B F S 4 1 / C B _

SWITCHCASE MATERIALA = BLACK ANODISED ALUMIMIUM

CERTIFICATIONO = ATEX/IECEx Exia INTRINSICALLY SAFEB = ATEX/IECEx Exd FLAMEPROOFA = INDUSTRIAL / MARINE

DIAPHRAGM8 = NITRILE9 = VITON

PRESSURE HOUSINGFS = - 316 ST STEEL

PROCESS CONNECTION1 = 1/4” BSP.P FEMALE2 = 1/4” NPT FEMALE

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1064 | issue 1

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PERSEUS HIGH

PRESSURE

The latest innovation to our range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

PF61 & PF62 PERSEUS ATEX/ IECEx OR TRI-CERTIFIED WITH AEx (NEC 505) Exd, Exia & INDUSTRIAL PRESSURE SWITCH

FEATURES

Internal adjustment scale.a

ATEX/IECEx/AEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

HIGH PRESSURE

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from 4 Bar to 800 Bar.a Wetted parts NACE MR-01-75 complianta

HIGH PRESSURE RANGES Piston actuated with sealing ring

ADJUSTMENTRANGE BAR

4 - 17.5

10 -36

28 - 108

50 - 200

115 - 455

200 - 800

ADJUSTMENTRANGE PSI

30 - 230

140 - 540

400 - 1600

725 - 2825

1600 - 6600

2900 - 11600

MAX. WORKINGPRESSURE BAR

700

700

700

700

700

1000*

DEADBANDBAR

0.5 - 1.5

1 - 3

2 - 8

3 - 15

8 - 35

15 - 60

PISTONCODE

S6

S6

S3

S2

S1

S7

SPRINGCODE

B

W

W

W

W

W

*1/4” Process connection. Only 700 Bar if 1/2” conn. selected

PART NUMBER BREAKDOWN ELECTRICAL CONNECTIONS_ = M20 LEAVE BLANKC = 1/2” NPT ADAPTORF = M25 ADAPTOR

SWITCHCASEPF6 = STANDARDPR6 = RESISTOROPTION

MICROSWITCHOPTIONS1 = 1 X SPDT2 = 2 X SPDT9 = HIGH DEADBANDDUAL SWITCHES ARE MECHANICALLY LINKED TO PROVIDE DPDT

SPRING CODEPLEASE REFER TO RANGE TABLE

BRACKETX = STD - NO BRACKETH = 2” PIPE.R = XPB SPECIAL

PISTON CODEPLEASE REFER TO RANGE TABLE

P F 6 1 A B / B W 3 2 / S 7 X B _SWITCHCASE MATERIALA = BLACK ANODISED ALUMINIUM

CERTIFICATIONO = ATEX/IECEx Exia INTRINSIC. SAFEB = ATEX/IECEx Exd FLAMEPROOFA = INDUSTRIAL / MARINEC = TRI-CERTIFIED Exd FLAMEPROOFD = TRI-CERTIFIED Exia INTRINSIC. SAFE

SEAL MATERIALA = NITRILEB = VITOND = PTFE*E = EPDM*** FOR SETTINGS ABOVE 10 BAR. MAX 100 BAR** NOT AVAILABLE WITH S7 PISTON* & ** FEMALE PROCESS CON-NECTION ONLY

PROCESS CONNECTION31 = 1/4” BSP.P FEMALE32 = 1/4” NPT FEMALE33 = 1/2” BSP.P FEMALE34 = 1/2” NPT FEMALE41 = 1/2” BSP.P MALE42 = 1/2” NPT MALE*100 BAR MAX PRESSURE ONLY AVAILABLE WITH 1/4” PROCESS CONNECTION.

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

Wetted parts : 316 stainless steel with either Viton (std), Nitrile, PTFE or EPDM dependant on selection.

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

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PERSEUS METAL

DIAPHRAGM

The latest innovation to our range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

PF61 & PF62 PERSEUS ATEX/IECEx Exd, Exia & INDUSTRIAL PRESSURE SWITCH

FEATURES

PRESSURE METALDIAPHRAGM

Internal adjustment scale.a

ATEX/IECEx Flameproof versionCE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C. (with or without resistors)

a

SIL 2 – IEC61508 proven reliability.a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx/AEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

aSingle or dual microswitch option.a

Settings from 15 mBar to 420 Bar.a Wetted parts NACE MR-01-75 complianta

HIGH PRESSURE RANGES Stainless steel or Inconel diaphragm

ADJUSTMENTRANGE (BAR)

15 - 90

30 - 80

70 - 420

ADJUSTMENTRANGE (PSI)

225 - 1225

500 - 2500

1000 - 6000

MAX. WORKINGPRESSURE BAR

500

500

500

DEADBAND(BAR)

4 - 9

5 - 15

12 - 42

DIAPHRAGMCODE

A

B

C

SPRINGCODE

W

W

W

PART NUMBER BREAKDOWN

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDT

DUAL SWITCHES ARE MECHANICALLY LINKED TO PROVIDE DPDT SWITCHING

SPRING CODEPLEASE REFER TO RANGE TABLE

DIAPHRAGM CODEPLEASE REFER TO RANGE TABLE

BRACKETX = STD - NO BRACKETH = 2” PIPER = XPB SPECIAL

ELECTRICAL CONNECTION ENTRYB = RIGHT HAND SIDE

SWITCHCASEPF6 = STANDARDPR6 = RESISTOR OPTION

ELECTRICALCONNECTION_ = M20 LEAVEBLANKC = 1/2” NPTADAPTOR F = M25ADAPTOR

P F 6 1 A B / 6 W 1 0 C / S 1 X B

SWITCHASE MATERIALA = BLACK ANODISED ALUMINIUM

CERTIFICATIONO = ATEX/IECEx Exia INTRINSIC. SAFEB = ATEX/IECEx Exd FLAMEPROOFA = INDUSTRIAL / MARINE

DIAPHRAGM

3 = INCONEL WITH NITRILE SEAL4 = INCONEL WITH VITON SEAL5 = 316 STAINLESS STEEL & NITRILE SEAL6 = 316 STAINLESS STEEL & VITON SEAL

PROCESS CONNECTIONS1 = 1/4” BSP.P FEMALE - 316SSM1 = 1/4” BSP.P FEMALE - MONEL 400S2 = 1/4” NPT FEMALE - 316SSM2 = 1/4” NPT FEMALE - MONEL 400S5 = 1/2” BSP.P FEMALE - 316SSM5 = 1/2” BSP.P FEMALE - MONEL 400S6 = 1/2” NPT FEMALE - 316SSM6 = 1/2” NPT FEMALE - MONEL 400

FOR MALE CONNECTION USE S1 NOTE MONEL NOT AVAILABLE ON MALE

PROCESS10 = FEMALE PROCESS22 = 1/2” BSP.P MALE24 = 1/2” NPT MALE

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1066 | issue 1

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PERSEUS HORIZONTAL

LEVEL

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc). One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.

LF61 & LF62 PERSEUSATEX/IECEx Exd, Exia & INDUSTRIAL LEVEL SWITCH

FEATURESATEX/IECEx Flameproof version CE II2G Exd IICT6 Ta = - 50 to +74°C & T5 Ta = - 50 to +89°C(with or without resistors)

a

HORIZONTAL LEVEL

Single or dual microswitch option.aATEX/IECEx Intrinsically safeCE II1G Exia IICT6 - 50 to +78°C, T5 +93°C, T4 +128°C(without resistors)

a

Black anodised aluminium switchcase to IP67 standards.

a

ATEX/IECEx Intrinsically safeCE II1G Exia IICT5 - 50 to +72°C & T4 - 50 to +122°C(with resistors)

a

SIL 2 – IEC61508 proven reliability.a

Switching is effected in this unit through transforming, by means of a eccentric cam at fulcrum, the vertical motion of the flow with level change to the considerably reduced movement of a horizontal switch plunger which is arranged to operate a one or two SPDT/SPCO microswitches.

This type of level switch can be used on tanks under pressure or vacuum, being suitable for pressures up to 3.5 Bar (only with spherical float) and liquid temperatures up to 100°C. It is suitable for low temperature operation but will not operate if the liquid is frozen.

The device can be mounted through a 27mm hole drilled in the side of the tank with joint washer and back nut pro-vided. (access inside the tank will be required to attach the float. Alternatively it can be provided with a flange and cylindrical float which will allow for the insertion of the switch complete with float.

Wetted parts : 316 stainless steelwith Viton seal

Process connection : 3/4” BSP.P

Process temperature limitations :0°C to 100°C

SWITCHCASE MATERIALA = BLACK ANODISED ALUMINIUM

ELECTRICAL CONNECTION_ - M20 LEAVE BLANKC = 1/2” NPT ADAPTORF = M25 ADAPTOR

SWITCHCASELF6 = STANDARDLR6 = WITH RESISTORS

MICROSWITCH OPTIONS1 = 1 X SPDT2 = 2 X SPDTDUAL SWITCHES AREMECHANICALLY LINKED TOGIVE DPDT SWITCHINGACTION

FLOAT MATERIALS = 316 STAINLESS STEELP = POLYPROPYLENE

ELECTRICAL CONNECTIONB = RIGHT HAND SIDE

SWITCHCASE MATERIALA = BLACK ANODISED ALUMINIUM

CERTIFICATIONO = ATEX/IECEx Exia INSTRINSICALLY SAFEB = ATEX/IECEx Exia FLAMEPROOFA = INDUSTRIAL / MARINE

FLOAT AND RODFS050 = 4” SPHERICAL FLOAT WITH 4” RODFS051 = CYLINDRICAL FLOAT WITH 4” RODFS052 = CYLINDRICAL FLOAT WITH 8” RODFS053 = CYLINDRICAL FLOAT WITH 2” ROD

FLANGEX = NO FLANGEA = 2” ANSI FLANGEB = DN50 FLANGE

L F 6 1 1 A B / F S 0 5 0 S / X B _

PERSEUS ATEX & IECEx Exd, Exia &

INDUSTRIAL SWITCHES

The Perseus pressure, vacuum, differential pressure, temperature, and level switches are designed for use in environments where explosive gases can be present (e.g. Gas fields, Oil rigs and Chemical plants etc.) and have been ATEX and IECEx certified as detailed overleaf (SIL2 - IEC61508 proven reliability).

These switches are manufactured from a high quality casting which offers robust construction and protection to IP67 for use within heavily polluted industrial environments. A special feature of the instruments is the separation of the flameproof and adjustment compartments allowing for safe on-site adjustment of the set point with power on and the switch in operation.

Perseus Exd switches must be installed in accordance with BS EN 60079-14

INTRODUCTION

The design features a simple form of adjustment against a calibrated scale. This enables a user to order switches set at a predetermined point or stock a mid range setting and adjust switches to suit the particular application. The set point can be safely adjusted with the switch electrically live. Adjustment is made by removing the access cover and rotating the set point adjuster using the supplied tommy bar stowed to the right of the scale plate. The setting is read from the centre of the set point adjuster against the calibrated scale. Rotation to the left will increase the set point and to the right decrease it.

CALIBRATION

Our products are designed to work in demanding and hazardous environments which require fast and cost effective solutions in instrumentation

and control. Pyropress control sensors provide safe and

reliable electrical switching of alarm or control circuits in response to changes in temperature, pressure, differential

pressure,vacuum, fluid, flow and level conditions.

ABOUTPYROPRESS QUALITY

To support the design of state of the art products the company has invested heavily in the latest CNC technology.

We are able to produce our own components to a high degree of aaccuracy assuring a reliable and

consistent quality product.

T: +44 (0)1752 333933 | sales@pyropress.com www.pyropress.com

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive 5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 - 2.5 mm². (Max 1.5 mm² for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. ½” NPT via adaptors

Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN 60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.

Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).

Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C(For temperature, level and flow switches please refer to specific pages).

Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof - Gas (with or without resistors)CE Ex ll2G Exd llB + H2 T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007 with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – GasCE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C orCE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.Accuracy: +/-1% at 20°C.

TECHNICAL SPECIFICATION

PPSSC1061 | issue 1