TY-KJ16-001A

エ

INSTRUCTION MANUAL

FOR

PRESSURE TRANSMITTER

MODEL KJ16

2017.6

TY-KJ16-001A

Cautions for proper and safe operation

To use this product safely, please read this document and the instruction manual carefully. Incorrect operation may cause malfunction, damage, or an accident.

The cautions and warnings in the document are indicated by the following:

Indicates that incorrect use may result in severe injury or loss of life.

Indicates that incorrect use may result in risk of injury or property damage.

･ Do not apply pressure greater than the maximum allowable pressure. This may cause damage or burst of the pressure element and result injury or damage to the surroundings.

･Do not use this product to measure the object which causes gas/liquid contact area to corrode. This may cause damage or burst of the pressure element and release of the measurement object. It will result in injury or damage to the surroundings.

･Do not apply excessive weight, vibration or shock. This may cause damage or burst of the unit and release of the measurement object. It will result in injury or damage to the surroundings.

･Use of a non designated power source may cause a fire or electrical shock.

･Use this device within the operating temperature range.

･ Using outside the range of operating temperature may cause malfunction or damage of the product and result in injury or damage to surroundings.

･Perform wire connection according to the wire connection faceplate or the wire connection instructions of the instruction manual. Incorrect wire connection may cause injury or a fire.

･Use explosion -proof product where the place with risk of existence of explosive gas. It may cause ignition or explosion.

･Where the measurement object is oxygen, use oil-proof product. In case of ordinary product, there is a possibility that oil remains inside the product. It may cause ignition or explosion by reaction with oxygen.

･Perform installation carefully according to the installation instructions of the instruction manual.

･Do not alter this product. Also, do not remodel this product by adding new functions. Contact NKS for repairs.

･Since this product is a precision measuring instrument, keep the product as far away from noise source as possible.

Also, remove noise from the power source by using noise filter, etc.

* If breakdown or malfunction of this product may directly threaten human life or it may harm human body, please contact NKS in advance.

Warning !

Caution !

Warning !

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CONTENTS 1．Preface ································································ 2

2．Attention ······························································· 2

3．Outline ································································· 3

4．Features ······························································· 3

5．Specifications 5－1．Model number configuration ················································· 3 5－2．General Specification ························································· 4 5－3．Specification of intrinsic safety explosion-proof construction ······· 6

6．Drawing 6－1．Dimensions/ Standard ························································· 8 6－2．Connection thread shape ····················································· 8 6－3．Dimensions / Tip diaphragm type ··········································· 9 6－4．Tip shape dimension ··························································· 9 6－5．User side connection dimension / Tip diaphragm type ·············· 10

7．Principle of operation ·························································· 10

8．Installation 8－1．Transmitter ······································································11 8－2．Safety barrier ·································································· 12 8－3．Cable ············································································ 12 8－4．【Terminal box type】Precautions ······································· 12

9．Wiring 9－1．Suitable transmission cable of terminal box type ····················· 13 9－2．Suitable transmission cable of Connector type ······················· 15 9－3．System configuration ························································ 16 9－4．Connection layout ···························································· 16 (1)-1．Barrier model number：KFD2-STC4-Exl ···························· 17 (1)-2．Barrier model number：MTL5541····································· 18 (2)-1．Barrier model number：MTL7787+ ··································· 19 9－5．About intrinsic safety devices and safety barriers ···················· 20 9－6．On the wiring of intrinsic safety devices and safety barriers ······· 21

10. Precautions 10－1．Precautions for transportation ············································· 22 10－2．Precautions for storage ····················································· 22 10－3．Precautions for opening package ········································ 22

11. Operation (Energization) ········································· 22

12. Maintenance & Service 12－1．Maintenance ································································· 23 12－2．About the influence by the noise ········································ 23 12－3．Service ········································································ 24

13. Warranty ······························································· 25

14. Others ································································ 25

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1. Preface

Thank you very much for purchasing this intrinsic safety explosion-proof construction KJ16 pressure transmitter. In order to utilize this product sufficiently, safely and correctly, please read these instructions manual well.

2. Attention

We shall have no liability for the failure or trouble of this product, or physical injury resulting from the following:

Modification and repair performed by any person other than our company's employee.

Trouble of this product caused by the product of any other company. Misuse that the instructions, use conditions or methods indicated in this instructions

manual are not observed. Natural disasters, such as a fire, an earthquake, flood damage, and a thunderbolt.

Please do not implement the use, installation, storage, or the work that may damage the explosion proof in the following environment:

① Apply repetitive pressure outside the rated pressure range. ② Application of the pressure that exceeds the maximum allowable

pressure. ③ Use of gases and liquids to corrode wetted parts. ④ Installation which may damage the explosion proof of the

intrinsically safe circuit. ・ Places exceeding 60 °C of ambient temperature※1 ・ Places which receive direct sunlight※1 ・ Places exposed to liquid such as rainwater※2 ・ Places of the atmosphere containing humidity, salt, sulfur etc.※2 ⑤ Places exposed to excessive load, vibration, or shock※3 ⑥ Wiring which may damage the explosion proof of the intrinsically

safe circuit※4 ⑦ Maintenance & inspection work for this product in a hazardous area

※5

※1 By receiving direct sunlight, the intrinsically safe allowable temperature of 60°C will be exceeded or the terminal box made of resin will be deteriorated damaging the intrinsically safe protection performance.

※2 Under the influences of rainstorm, sea breeze, dew condensation, etc, the container can corrode damaging the intrinsically safe protection performance or the air humidity can permeate into the container damaging the intrinsically safe insulation performance. Please install in a place without those influences.

※3 Please do not give an excessive shock or drop to this product during transportation and installation etc.

※4 Please refer to "9. Wiring " ※5 When checking up this instrument in hazardous area, do not go further than appearance inspection.

Any maintenance check other than appearance inspection shall be conducted in "non-hazardous area" and never be conducted in hazardous area. Please avoid electrostatic charging.

WARNING

！

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3．Outline

This product is a pressure transmitter that uses a semiconductor strain gauge for the pressure detection part and is an intrinsically safe explosion-proof molded type test certified in accordance with IEC standards technical standards.

Where a combustible gas or a vapor of a flammable liquid (hereinafter referred to as an explosive gas) is present at a concentration that may cause an explosion or a fire at a general factory or any other place including a petrochemical plant, You can use it in the hazardous areas.

In the tip diaphragm type, by placing a pressure sensor element at the tip of the

connection part, it is possible to measure a wide range of media by suppressing the

volume inside the pressure receiving part and the liquid pool.

4．Features

（1） Since this product has the intrinsic safety explosion-proof construction, it can be used in the hazardous areas of Zone 0, Zone 1 and Zone 2 where almost all explosive gases exist.

（2） The pressure sensor is the semiconductor vapor deposition type (SS) sensor, which has record of achievements in the various industrial fields, and has the integral structure at the semiconductor strain gauge, sensing and the connection areas. The pressure sensor is also known for its superior durability and stability.

5．Specifications

5-1．Model number configuration K J 1 6 -

Wetted parts material

Connection thread

Type

Diaphragm Joint

4 : SUS630(17-4PH) SUS316 6 : Co-Ni SUS316 G : SUS316L SUS316L

2 : G1/4B

3 : G3/8B

4 : G1/4B

6 : R1/8 50MPa or less

7 : R1/4 50MPa or less

8 : R3/8 50MPa or less

9 : R1/2 50MPa or less

F : 9/16-18UNF (Made by Autoclave Engineers , Equivalent to F250C)

V : G3/8A Tip diaphragm type*1 1～10MPa

6 : Connecter type with 2m shielded cable 7 : Terminal box type (Small) 9 : Terminal box type (Large)

* 1: The tip diaphragm type wetted part material,

"4: Diaphragm SUS 630 (17 - 4 PH) Joint SUS 316" only.

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5-2．General Specification

Item Specification

Standard Tip diaphragm type

1. Pressure range

-0.1～0.5, 1, 2MPa

0～0.5, 1, 2, 3.5, 5, 10, 20, 35, 50, 70,

100MPa

(KJ16-G is 35 MPa or less)

0～1, 2, 3.5, 5, 10MPa

2. Allowable maximum

pressure*1

SUS630

CO-Ni

200%

35, 50MPa：150%

70, 100, 120MPa：120% SUS630 200%

SUS316L 150%

3.5～35MPa：120%

3. Accuracy*2 ±0.5%F.S.（at 23） ±1.0%F.S.（at 23）

4. Temperature coefficient

(ZERO,SPAN)

SUS630

CO-Ni

±0.05%F.S./ (50MPa or less)

±0.1%F.S./ (70,100MPa) ±0.1%F.S./

SUS316L ±0.1%F.S./

5. Connection

G1/4B, G3/8B, G1/2B

R1/8, R1/4, R3/8, R1/2 (50MPa or less)

9/16-18UNF (Made by Autoclave Engineers ,

Equivalent to F250C)

G3/8A

(Recommended tightening torque:

30N.m)

6. Wetted parts

Material

Standard Diaphragm

Joint

:SUS630(17-4PH)

:SUS316 Diaphragm

Joint

O-ring

:SUS630(17-4PH)

:SUS316

: Hard NBR Corrosion proof use

Diaphragm

Joint

:SUS316L

:SUS316L(35 MPa or less)

High corrosion proof use

Diaphragm

Joint

:Co-Ni

:SUS316 EPDM, Fluororubber ,Neoprene etc.

Available

7. Fluid Gas or liquid (Not corrosive to the wetted material)

8. Power supply 24V DC±10%

9. Output 4～20mA DC (2 wire system)

10. Load resistance 500Ω max.

275Ω max. (When using the recommended zener barrier)

11 Case material ADC12

12.Protection class Eguivalent to IP65 ( IEC standard)

13. Type Connector type

Terminal box type (Large, Small)

14. Operating temperature

and humidity －10～60, 35～85%RH (No freezing or condensation)

15. Storage temperature

and humidity －20～70, 35～85%RH (No freezing or condensation)

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*1：The maximum allowable pressure is the maximum pressure that does not affect the accuracy of

the pressure range and the performance as it is applied to the temporary. Therefore, it does not

allow to be subjected to repeated impermissible pressure on the pressure sensor.

*2：Accuracy includes linearity, hysteresis and repeatability.

*3： When using the recommended zener barrier (MTL7787+), please pay attention when using it as

the load resistance that the user can connect is 275 Ω. (Including cable and other line resistance)

16. Insulation resistance 100MΩ or more (at 50V DC)

17. Applicable Standard RoHS:EU RoHS compliant

EMC:EN61326/1997, A1/1998, A2/2001, A3/2003

18. Weight

Connector type：Approx. 170g (Excluding cable.)

Terminal box type (Large)：Approx.410g

Terminal box type (Small)：Approx.300g

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5-3．Specification of intrinsic safety explosion-proof construction

KJ16 Pressure Transmitter（Hazardous Area）

1. Type approval number

Technology Institution of Industrial Safety (TIIS) Intrinsically safe explosion-proof construction approved product

Type approval number Pressure range

No. TC17811 0～0.5, 1, 2MPa

-0.1～0.5, 1, 2MPa

No. TC17810 0～3.5, 5, 10, 20, 35, 50MPa

70, 100MPa

2. Intrinsic Safety Explosion-Proof

Construction type

Ｅｘｉａ ⅡＣ Ｔ４ Temperature class

Gas group

Technological standard intrinsically safe explosion-proof construction

3. Safety maintenance Rating

Max. allowable voltage of intrinsically safe circuit (Ui)：28V

Max. allowable current of intrinsically safe circuit (Ii)：93mA

Max. allowable power of intrinsically safe circuit (Pi)：651mW

Internal inductance of intrinsically safe circuit (Li)：10μH

Internal capacitance of intrinsically safe circuit (Ci)：0.065μF

Ambient temperature：60

4. External transmission cable

Max. allowable inductance：2.5mH Max. allowable capacitance：0.015μF （Differs depending on the barrier used.）

5.Withstand voltage 500V AC, 1min

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Isolated barrier （Safety area）

The specifications of recommended Isolated barrier (safety barrier) to be combined with

KJ16 pressure transmitter is shown in the table below. Since the isolated barrier is insulated

from the intrinsically safe circuit, intrinsically safe explosion-proof ground contact is

unnecessary.

※ The safety barrier can be selected by the customer.

Zener barrier （Safety area）

The specifications of recommended Zener barrier (safety barrier) to be combined with KJ16

pressure transmitter is shown in the table below.

※ The safety barrier can be selected by the customer.

Isolated Type

1．Manufacturer Pepperl + Fuchs

K.K.

Cooper Industries

Japan K.K.

2．Type KFD2-STC4-Ex1 MTL5541

3．Type approval number No.C16232 No.TC19435

4．Intrinsic Safety Explosion-Proof Construction type Exia ⅡC Exia ⅡC

5．Safety

maintenance

Rating

Max. allowable voltage of intrinsically safe circuit (Uo) 25.4V 28.0V

Max. allowable current of intrinsically safe circuit (Io) 86.8mA 93.0mA

Max. allowable power of intrinsically safe circuit (Po) 551mW 650mW Max. allowable inductance of intrinsically safe circuit (Lo) 4.6mH 4.2mH Max. allowable capacitance of intrinsically safe circuit (Co) 0.093μF 0.083μF

Ambient temperature 60 60 6. Safe-area load resistance

intrinsically safe circuit.800ΩMAX

(at 20mADC) 450ΩMAX

(at 20mADC)

Zener Type

1．Manufacturer Cooper Industries

Japan K.K.

2．Type MTL7787+

3．Type approval number No.TC16447

4．Intrinsic Safety Explosion-Proof Construction type Exia ⅡC

5．Safety

maintenance

Rating

Max. allowable voltage of intrinsically safe circuit (Uo) 28.0V

Max. allowable current of intrinsically safe circuit (Io) 93.0mA

Max. allowable power of intrinsically safe circuit (Po) 650mW

Max. allowable inductance of intrinsically safe circuit (Lo) 3.05mH Max. allowable capacitance of intrinsically safe circuit (Co) 0.083μF

Ambient temperature 60

6. Safe-area load resistance intrinsically safe circuit.

270ΩMAX (at 20mADC)

When Zener barriers are used, it is necessary to establish a single Class A grounding work with intrinsically safe explosion default. ！ CAUTION

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6. Drawing 6-1. Dimensions / Standard

KJ16-6(Connector type)

KJ16-7(Terminal box type (Small))

KJ16-9(Terminal box type (Large))

6-2. Connection thred shape

(3) 9-16-18UNF(Made by Autclave Engineers, Equivalent to F250C)

(1) Parallel thread

KJ16-F (9/16-18UNF)

KJ16-6 h:100

KJ16-7 h:153

KJ16-9 h:172

*1: Please do not use the side screws for case fixing, for grounding connection. *2: "LC" is printed by laser marking on one side of the joint hexagon for identification of the joint material (SUS 316L).

*1

*1

*2

*2

KJ16-2 KJ16-3 KJ16-4

(G1/4B) (G3/8B) (G1/2B)

ａ：16 ａ：18 ａ：20

ｈ：115 ｈ：117 ｈ：119

ａ：16 ａ：18 ａ：20

ｈ：168 ｈ：170 ｈ：172

ａ：16 ａ：18 ａ：20

ｈ：187 ｈ：189 ｈ：191

KJ16-7

KJ16-9

KJ16-6

KJ16-6 KJ16-7 KJ16-8 KJ16-9

(R1/8) (R1/4) (R3/8) (R1/2)

b：14 b：16 b：18 b：20

ｈ：110 ｈ：112 ｈ：114 ｈ：116

b：14 b：16 b：18 b：20

ｈ：163 ｈ：165 ｈ：167 ｈ：169

b：14 b：16 b：18 b：20

ｈ：182 ｈ：184 ｈ：186 ｈ：188

KJ16-6

KJ16-7

KJ16-9

*2

(2) Taper thread

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6-3. Dimensions / Tip diaphragm type

KJ16-6V4 (Connector type) KJ16-9V4 (Terminal box type (Large))

KJ16-7V4 (Terminal box type (Small))

*1: Please do not use the side screws for case fixing, for grounding connection.

6-4. Tip shape dimension

(1) 1～2MPa Range

(2) 3.5～10MPa Range

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6-5. User side connection dimension / Tip diaphragm type

Shape and dimensions of parallel thread type joint attachment end part and mating port. [JIS B2351-1 Excerpt from Annex 1 Appendix 7]

G is class A parallel thread for JIS B 0202 pipe. The O-ring seat surface shall not have axial scratches or spiral tool marks. The d2 counterbore surface shall be at right angles to the screw axis and flat.

7. Principle of operation

This instrument has intrinsically safe explosion-proof construction and is mainly placed in hazardous area such as factory plants. It measures pressure and outputs 4 to 20mA DC through safety barrier placed in non-hazardous area.

The diaphragm of a pressure receiver converts measured pressure into strain. The amount of the strain is detected by semiconductor strain gauges which are vapor deposited on the diaphragm.

The detection circuit is full-bridge type in which four sides of bridges are all constructed with semiconductor strain gauges.

By these bridge circuits, electric signals which are proportional to the strain are generated. Then they are transmitted as direct-current output of 4 to 20mA DC by amplifier circuit and output circuit on the next stage. (See the block figure below)

Vol

tage

ref

eren

ce c

ircui

t

Am

plifi

er c

ircui

t

Out

put c

ircui

t

d2D

IAd 3

DIA

A

Thread d2±0.3 d3 L3(min) L4(max) L5(min) L6 O-ring

G3/8 28 18.6 12 2 18 2.5 P14

+0.1 0

+0.40

d3D

IA

O-ring seat face

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8. Installation 8-1．Transmitter

(1) Where the product is connected to the pressure line, do not tight the main body of the case with pipe wrench, etc. For installation, make sure to use hexagonal part of connecting screw. The recommended tightening torque of the tip diaphragm type is 30 N · m

(2) When installing on the pressure line, please do not install in a state that the piping is filled with liquid. Because the liquid is incompressible, high pressure is generated when the connection screw is tightened, resulting in equipment failure. When replacing the existing pressure line or replacing, remove the liquid on the piping connection side, leave about 15 to 20 mm of air, screw it in and install it.

(3) Although this product has high vibration resistance, since this product is a measuring instrument, be careful not to apply severe vibration.

(4) Installation position may be vertical,front to back, side to side, or horizontal.

(5) This product has protection code IP65 (JIS C 0920). However for longer use, select a location that is not affected by direct sunlight, dump, dust, oil or water.

・Please do not give an excessive impact such as bumping or dropping this product when installing piping at the time of installation.

・Please maintain enough space around the product to allow for maintenance and adjustment.

・Please do not insert wires, etc., into the pressure feed port. This may damage the diaphragm and prevent it from operating normally.

・Taper pipe threads should be wrapped with seal tape and leak-free.

・If using straight pipe threads, please check for debris, dirt, and damage to the washer and seal face before installation to prevent leaks.

・If there is a danger of surge pressure, please concurrently use a damper and joint with throttle.

・In case of the terminal box type, please do not turn the ground up so as to prevent water from entering through the cable.

・Always avoid pulling or severely bending cables. Also, during installation, be careful not to hang the weight of any cables from this product.

・Since earth grounding from the KJ16 main body (Joint part) is necessary, please install so as to be grounded through pressure piping. In the unlikely event that earth grounding from the piping is impossible, please ground using the earth terminal of this product. (Connector type : Cable shielding wire, Terminal box type : Terminal block number 3 Ground terminal) However, when both the KJ16 main body and the earth terminal are grounded, please be careful not to become a two-point grounding that is a potential difference. (Please connect to 1 point if possible.)

・When the temperature of the measurement medium exceeds the operating temperature limit, you are requested to implement heat radiation measures such as using a cooling system or attaching a pipe siphon without directly introducing the measurement medium into the main body of KJ16 in order to reduce the temperature impact of the measurement medium. In addition, when the temperature of the measurement medium is lower than ambient temperature (when there is a difference from the temperature of the main body), you are requested to extend piping or take other measures against dew condensation so that the temperature of the measurement medium is equal to the ambient temperature of the main body.

！

CAUTION

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8-2．Safety barrier For details, please see the instruction manual of the purchased safety barrier.

8-3．Cable The cable to be connected in hazardous area can be selected freely. However, it must comply with the rating indicated on the barrier and the requirements written in instruction manual. Especially, inductance and capacitance (Lo/Co) must be strictly observed. If the cable inductance / capacitance value which is determined by cable size / length exceeds the indicated rating of the barrier, the certification of intrinsically safe explosion-proof construction is invalidated.

8-4．【Terminal box type】Precautions when sprinkling water etc. is assumed for the transmitter

・In order to prevent water intrusion from the gland part (cable taking-out port), this product should be attached so that the gland part is in the direction of the under surface as shown in the drawing below. (Recommended attaching direction for this product) In addition, fasten the gland enough to prevent water intrusion.

*Please refer to "9-1 Suitable transmission cable "

・In the construction of the cable, lower the cable in the direction of the under surface by one degree as shown in the drawing below and rotate it several times for wiring in the direction of the top surface in order to prevent water from entering the cable and accumulating inside. (Carry out wiring so that the cable is lowered in the direction of the under surface by one degree, regardless of attaching direction.) Moreover, in the case of using wireway, water intrusion should be avoided as well.

・Atmospheric pressure is introduced into the instrument by way of cable; when the cable is pressed by a clamp or bushing or extreme bending in the middle of the cable or when the cable is long, it takes time to exhaust pressure, possibly causing output error due to the case internal pressure or any change of temperature. Moreover, carry out wiring so that the cable end is not sealed with taping and adhesive.

・For a transmission cable used between a terminal box type and a safety barrier, be sure to choose and use the cable of an appropriate outer diameter according to the gland size. Using a cable suitable to the gland ensures waterproof performance (IPX5 (Anti-jet type) equivalent). Note that fastening a terminal box cover and building in a lead-in wire can affect the waterproof performance. In addition, you are requested to check waterproof performance when using a commercially available gland or cable conduit instead of attached gland parts.

* IPX5 ( There is no harmful effect of jet water from all directions):

Sprinkle a current of 12.5L/min discharged by a water nozzle of φ 6.3 from every direction (a distance of 2.5 to 3m) for one minute per shell surface area of 1 m2 or for more than a total of 3 minutes. Confirm that there is no water intrusion (no adverse effect).

・Since IPX5 equivalent waterproof performance is only guaranteed when the parts are correctly attached, you are requested to perform sufficient confirmation.

< Recommended installation direction when watering is assumed >

！

CAUTION

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9. Wiring

9-1．Suitable transmission cable of terminal box type

The transmission cable used between Terminal box type product and the safety barrier (insulated barrier) should be 2-wire shielded cable and should be selected as suitable for the conditions below.

① The cable's sheath outer diameter suits the cable ground of the terminal box of this product

and the cable's center conductor sectional area suits the internal terminal block of this product. Moreover, the cable suits the withstand voltage between the cable's conductors (center conductors) and the withstand voltage between the conductor and the ground.

Type (Terminal

box)

Terminal port size (JIS F 8801)

Gasket inner

diameter (mm)

Sheath outer

diameter （mm）

Core wire cross

ectional area

(mm2)

Withstand voltage AC（V）

For 1 minute

KJ16-7 (Small)

G3/8

10a (standard)

7 6～7

0.25～1.65

500 Between

conductor and ground)

10b 8 7～8

KJ16-9 (Large)

G1/2

15a 9 8～9

15b (standard)

10 9～10

15c 11 10～11

② The allowable parameters specified for the external wiring of the intrinsically safe circuit （Refer to paragraph 5-3 Specification of intrinsic safety explosion-proof construction）Use the following:

Allowable capacitance

（μF）

Allowable inductance

（mH）

0.015 2.5

③For connection to the KJ16 main unit please process the end of the cable according to the figure below. Peel the cable sheath a specified length. (Box type small : 60mm , Large : 80mm) Please use R1.25~4 equivalent ( JIS C 2805) for crimp terminal for M4

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・Please attach a crimp terminal that always conforms to the core wire

・Atmospheric pressure is introduced into the instrument by way of cable; when the cable is pressed by a clamp or bushing or extreme bending in the middle of the cable or when the cable is long, it takes time to exhaust pressure, possibly causing output error due to the case internal pressure or any change of temperature. Moreover, carry out wiring so that the cable end is not sealed with taping and adhesive.

・In the case of using an insulated barrier, from the body of the KJ 16 (fitting part) Earth ground is required. Please make it so as to be grounded through piping.

・In case earth grounding by piping is impossible, please use earth shielded wire to ground. However, if both the KJ16 main body and the shielded wire are grounded, ground one point so that there is no potential difference between them.

④Open the lid of the terminal box and insert the cable from the terminal port all the way to the gasket.

⑤Tighten the ground and close the terminal port.

⑥Please connect the wire to the terminal block. The recommended tightening torque to the terminal block is 1.2N.m

・When using bare crimp terminal, please take necessary insulation distance by insulation tube etc. to prevent exposure of charging part, to prevent electric shock, short circuit etc.

・Please do not wire connection with moisture adhering to this product. Moisture

etc. intruding into the inside may cause malfunction. ・Be careful not to lose each part when wiring.

⑦Please tighten the lid of the terminal box and tightly seal the terminal box.

・Fasten the cover of the terminal box enough to prevent water intrusion.

Please pass the cable through the gasket and securely tighten with "ground" so that there is no invasion of water.

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CAUTION

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CAUTION

Charging part

Insulation distance

Insulation tube

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⑧About the waterproofness of the wiring introduction part This product ensures waterproof performance by using a cable with an appropriate outer

diameter according to the ground size. Tightening the lid of the terminal box and incorporating the wiring introduction section will affect the waterproof performance, so please pay close attention. In addition, when using the supplied ground parts and commercially available ground, cable conduit, etc., we ask the customer to check the waterproof performance.

・Protection class equivalent to IP65 is guaranteed only when parts are correctly installed.

9-2．Suitable transmission cable of Connector type

①Cable specification with connector Specifications of cable with connector for wiring are as follows. ・Common specification Plug used ： TC1108-12A10-7F(6.3) （TAJIMI ELECTRONICS CO., LTD.） ・Cable specification When the cable sheath is peeled off, since the inside of the cable body is 4 wires, there are green and blue wires other than red and white, but green and blue wires are not used. (No internal connection)

Ambient

temperature

Core wire Cable outer diameter

(mm) cross-sectional area (mm2)

Constitution (Number/mm)

Shield cable (standard) －20～60 0.2

(AWG25) 7/0.18 φ6.2

Heat resistant cable －20～105 0.3

(AWG23) 12/0.18 φ6.0

Cold-resistant cable －40～80 0.3

(AWG23) 12/0.18 φ6.0

②Cable specification with connector Insert the supplied cable with connector into this product and tighten it until the nut does not

move with your hand. (Tightening torque: 3.92 N · m)

· Insufficient tightening may cause waterproof performance, so tighten enough until the nut does not move. * 1: When using an insulation type barrier, it is necessary to earth ground from the KJ16 main body (joint part), so please install it so that it is grounded through piping.In the unlikely event that earth grounding from piping is impossible, please use the shielded wire to ground the earth. However, when both the KJ16 main body and the shielded wire are grounded, please make one point ground so as not to generate a potential difference.

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9-3．System configuration

1. Isolated barrier

* 1: It is necessary to earth ground from the KJ16 main body (joint part), so please install it so that it is

grounded through piping.

In the unlikely event that earth grounding from piping is impossible, please use the shielded wire to ground the earth. However, when both the KJ16 main body and the shielded wire are grounded, please make one point ground so as not to generate a potential difference.

2. Zener barrier

9-4．Connection layout

1. Isolated barrier

As shown in the wiring diagrams on the following pages, place the safety device (KJ 16) in a hazardous place, securely hold the equipment (insulated barrier), general equipment (supply power, receiver) in a non-hazardous place and connect . In addition, when purchasing an insulated barrier, it is not necessary to singly provide Class A grounding for intrinsic safety. For connection details and other details, please refer to the product instruction manual purchased.

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(1)-1. Recommended barrier：Pepperl + Fuchs wiring examples

Barrier model number：KFD2-STC4-Exl

Note）Cable size : AWG14~24

* 1: It is necessary to earth ground from the KJ16 main body (joint part), so please install it so that it is grounded through piping. In the unlikely event that earth grounding from piping is impossible, please use the shielded wire to ground the earth. However, when both the KJ16 main body and the shielded wire are grounded, please make one point ground so as not to generate a potential difference.

Connecter Terminal box

1 A (Red) 1

3 C (White) 2

Earth E (Shield) 3

7

8

14

15

Terminal numberof barrier

EquipmentEquipnement terminal

Power supplyPower (+)

Power (-)

KJ16

Receiver gaugeOutput (-)

Output (+)

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(1)-2. Recommended barrier：Cooper Industries Japan K.K. wiring examples

Barrier model number：MTL5541

Note）Cable size : AWG14~24

* 1: It is necessary to earth ground from the KJ16 main body (joint part), so please install it so that it is grounded through piping. In the unlikely event that earth grounding from piping is impossible, please use

the shielded wire to ground the earth. However, when both the KJ16 main body and the shielded wire are grounded, please make one point ground so as not to generate a potential difference.

Connecter Terminal box

1 A (White) 2

2 C (Red) 1

Earth 　 E (Shield) 3

11

12

13

14

Terminal numberof barrier

EquipmentEquipnement terminal

Power supplyPower (-)

Power (+)

KJ16

Receiver gaugeOutput (-)

Output (+)

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2. Zener barrier

As shown in the wiring diagram below, please connect the cheap device (KJ16) in a hazardous place, safety-keeping equipment (zener type barrier), general equipment (supply power, receiver) in a non-hazardous place and connect. When installing the safety cage, a 35 mm wide DIN rail is required separately. For connection details and other details, please refer to the product instruction manual purchased.

(2)-1. Recommended barrier：Cooper Industries Japan K.K. wiring examples

Barrier model number：MTL7787+

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Note）Cable size : AWG14~24

· When Zener barriers are used, it is necessary to provide independent Class A grounding for intrinsically safe explosion proof. • When using the recommended zener barrier (MTL 7787 +), the load resistance that the user can connect is 275 Ω or less (including the line resistance of cables etc.). Please be careful when used.

9-5．About intrinsic safety devices and safety barriers

This instrument and a safety barrier shall be matched so that the conditions shown in the 2 tables below are met. If not, it is unable to assure the intrinsically safe explosion-proof capability. Please observe the “Matching condition” of each product. (See 5 – 2 “Intrinsically safe explosion-proof specification”)

Combination conditions for the safety maintenance rating

Safety maintenance rating of the

intrinsically safe device

Combination conditions

Safety maintenance rating of the safety barrier

Max. allowable voltage of intrinsically safe circuit

≧ Max. allowable voltage of intrinsically safe circuit

Max. allowable current of intrinsically safe circuit

≧ Max. allowable current of intrinsically safe circuit

Max. allowable electricity of intrinsically safe circuit

≧ Max. allowable electricity of intrinsically safe circuit

Combination conditions for parameters

Parameters of intrinsically safe device and wiring

Combination conditions

Parameters for safety barrier

Input inductance of intrinsically safe device

＋Inductance of wiring ≦ Max. allowable inductance of

intrinsically safe circuit

Input capacitance of intrinsically safe device

＋Capacitance of wiring ≦ Max. allowable capacitance of

intrinsically safe circuit

Connecter Terminal box

3 A (White) 1

4 C (Red) 2

Ground terminal E(shield) 3

2

Ground terminal

1

Ground terminal

Power(+)

Power(-)

Receiver gauge

Power supply

Terminal numberof barrier

EquipmentEquipnement terminal

KJ16

Output(+)

Output(-)

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9-6．On the wiring of intrinsic safety devices and safety barriers

The wiring of the intrinsically safe device and the safety barrier should be performed so that voltage and current which may damage the intrinsic safety explosion proof construction of the intrinsically safe circuit are not generated by electromagnetic or electrostatic induction.

Intrinsically safe wiring work etc. should follow the "Guide to Factory Explosion-Proof Electrical Equipment for the Users (Gas Explosion-Proof 1994)" published by the Technology Institution of Industrial Safety.

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10. Precautions 10-1.Precautions for transportation

This is a finely adjusted instrument. It may become unusable if dropped or gave an excessive shock. Please take extra care for transportation.

10-2.Precautions for storage

Do not store in the following places because it may cause damage / damage of this product. · Places subject to water · Places where there may be adverse effects due to atmospheric pressure,

temperature, humidity, ventilation, sunlight, dust, salt, air including sulfur content· In some places such as inclination, vibration, shock (including transport) · Places where chemicals are stored and places where gas is generated · Places exposed to direct sunlight, high temperature inside the car etc.

10-3. Precautions for opening package

Please check the appearance of packing prior to unpacking. Please be careful not to treat the load roughly when unpacking. Please take care with care so as not to accidentally drop it when taking out from the load. Please check whether the product is injuries after unpacking and that the product format is in accordance with the order. Should any abnormality be found, please contact the purchasing agency or our sales office.

11. Operation ( Energization )

Please check that there is no mistake in wiring again before turning on the power. Furthermore, please confirm that the rated voltage of the power supply, the rated current, the voltage input to the safety cage, and the internal resistance of the external connection device are within the rated range of the load resistance applied to this product. If the specification voltage of the safety cage is exceeded, the fuse in the safety cage and the safety cage will be damaged. (This fuse can not be replaced or repaired.) Also, if the polarity is mistaken, there is a danger of damage to the safety cage, so please be careful and check carefully. Power-on and warm up for 5 minutes or more before starting main operation.

Please note the following during operation. · Do not apply the rated pressure not less than the rated pressure indicated on the

nameplate of this product. · Do not perform wiring work in the power on state. There is a risk of malfunction of

this product and electric shock. Route the cable according to the wiring diagram.

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12. Maintenance ＆ Service

12-1．Maintenance

As this product can be considered change with time depending on usage situation, please conduct periodic inspection every half year and if necessary, please proofread. In addition, please perform calibration with the specified method or calibration agency. Here is a checklist for periodic inspection, so please refer to it.

＜Checklist for periodical inspection＞

① External appearance. ② Check corrosion of pressure inlet. ③ Insulation resistance between each terminal and case.（100MΩ or more／50V DC

max.） ④ Leak test of piping connection part. ⑤ Output check by standard pressure instrument. ⑥ Check waterproofing of cables, grounds, terminal box parts, re-tightening

When checking up this instrument in hazardous area, do not go further than appearance inspection. Any maintenance check other than appearance inspection shall be conducted in “non-hazardous area” and never be conducted in hazardous area.

Please avoid electrostatic charging When cleaning the appearance of this product, please use a soft cloth containing

water. Do not use thinner, benzene, etc. which may cause deterioration and failure.

12-2．About the influence by the noise

The problem of noise is complicated and there are many things that can not be easily solved theoretically and it is not perfect. If the measured value fluctuates from time to time or shows a different value from the actual pressure, the influence of noise may be considered. When noise is superimposed on the power supply line, it is in principle to investigate where noise is occurring and take measures with the source. When noise is steadily occurring, it is also effective to take measures with a noise filter or the like. In addition, it is also important to use a separate power supply from the power supply on which noise is superimposed. Noise may enter the signal line by induction from the outside, so it is also necessary to take measures to keep the noise source away, magnetic shield, static shield, etc. This also applies to surges. When using an inverter, the following contents are assumed, so please be careful when using it. ① Operating the inverter may malfunction the pressure transmitter. ② Noises may enter the signal line via the ground wire.

Warning ！

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③ Installing a noise filter on the power supply side of the inverter, measures such as isolating input / output wires and ground wires from the control circuit wiring are effective.

12-3. Service

In the case of failure, please contact your vendor or your local sales office after confirming disconnection of transmission cable, power supply voltage, etc. Moreover, please pack up the product concerned to prevent damage during transportation and include the written details of the failure.

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13. Warranty

If the delivered product is judged as a nonconformance with Nagano Keiki responsible failure regarding product design or manufacturing” and is still covered by a one year (effective from the date of the delivery to the customer), Nagano Keiki will either repair the product or exchange to a conforming part at no charge. However, this warranty does not cover the events or circumstance described in below.

(1) Disassemble modification, parts exchange or additional function of delivered part done

by the customer or third-party other than Nagano Keiki.

(2) Terms or conditions written in the instruction manual or the catalog are not observed.

(3) Deterioration throughout the usage, natural disasters, fire and other unavoidable

events.

(4) Secondary damage caused by product defects that includes above items.

Despite of the customer awareness for the misuse or not, the part that has apparent mark or traces such as deformation, wear or burnt will be excluded form the warranty coverage and be charged for any necessary repair or exchange.

14. Others

This manual cannot cover all details of the instrument or all other variations; Nor does it aim to explain all details of installation, maintenance and all other subjects. If you need more information, please feel to contact us. The contents of these instructions are subject to change without notice.

Some of the information in this instruction booklet may change without notice due to revisions, etc.

Website: http://www.naganokeiki.co.jp

Headquarters

30-4, Higashimagome 1-chome, Ota-ku,Tokyo,

Japan 143-8544