Bray Series 52 2N1 ProxSensor - 브레이콘트롤㈜bray.co.kr/pdf/S52N1Proxsensor.pdfBasic Product/Sales School S52 2N1 ProxSensor Inductive Proximity Sensor •Senses the proximity

Basic Product/Sales School

Bray Series 52 2N1 ProxSensor

The Next Generation

of Valve Position Signaling


S52 2N1 ProxSensor

• 2 Inductive Proximity Sensors

• 1 Self-Contained, Fully Sealed Enclosure

• Reliable, Bounce Free Contacts

• Simplified, Economical Installation


S52 2N1 ProxSensor Inductive Proximity Sensor

• Senses the proximity of a metal target

Target is non-magnetic

Target does not touch the sensor

• Solid-state Electronics

No moving parts carry electrical current

Long life (5 year warranty!)

• Spark free contacts for computer circuitry


Inductive Proximity Sensor Block Diagram

Coil

Target Oscillator

Detector

Output


Inductive Proximity Sensor Coil

• Coil of wire Radiates a high frequency electric field

• Ferrite Core Concentrates and directs the electric field

Target Oscillator

Detector

Output


Inductive Proximity Sensor Oscillator

• Electronic circuitry

Requires electric power to function

• Generates high frequency electric field

• Amplitude of oscillation can be changed by the presence of a metal target in front of the coil

Amplitude change is usually downward


Inductive Proximity Sensor Detector



• Monitors the amplitude of the oscillator

• If the oscillator amplitude changes a specific amount, the detector will signal the output to change


Inductive Proximity Sensor Output



• Digital output (ON or OFF) only

• Various configurations

NO, NPN, PNP , NAMUR, DeviceNet, AS-i, Profibus DP.

• Various operating voltage options

20 to 250 VAC, 10 to 30 VDC, 7 to 12 VDC(NAMUR)


Inductive Proximity Sensor Target

• Must be electrically conductive metal

• Does not have to be magnetic

• Eddy currents are induced in the target when it is placed in the electric field

• The eddy currents generate their own electric field which is reflected back to the coil


S52 2N1 ProxSensor Target

• Non-Magnetic Metal Target – 304 SS

• Symmetrically Designed Carrier – ABS Plastic

– Non-Adjustable or Adjustable Target Option

– No Cams or Set Screws

• High Visibility Yellow Pointer


S52 2N1 ProxSensor Enclosure

• PBT VO Polymer

• Interior completely filled with Epoxy

• No Covers to remove

• No Conduit Entries to seal

• Moisture and Chemical Resistant

• NEMA 4, IP67


S52 2N1 ProxSensor LED Indicators

• 2 Light Emitting Diode (LED) Indicators

One for OPEN, one for CLOSED

• Yellow LED for High Visibility

• The LED turns ON when the switch is sensing the target in AC and DC sensors

• The LED turns OFF when the switch is sensing the target in NAMUR sensors


S52 2N1 ProxSensor Output Configurations

• Two Normally Open (NO) Switches

One for Open, one for Closed

Target Presence closes the Switches

• Multi-pin Connector

Mini Style 5 pins NPT Threads

Euro Style 4 pins Metric Threads

Mini Style

Euro Style


S52 2N1 ProxSensor Connector Styles

• Mini Style

5 pins; NPT Threads; used with AC Sensors

Sometimes called “18 mm”

• Euro Style

4 pins; Metric Threads; used with DC Sensors

Sometimes called “12 mm”


S52 2N1 ProxSensor Connector Specifications

• Injection molded polyurethane body

High precision for maximum contact integrity

• Long coupling nut reinforces the body

• Gold plated beryllium copper contacts

Machined from solid stock for maximum strength

• Positive keying prevents improper assembly

• 100% electrically tested


Rule of Thumb

Competitive connectors

do not provide

GOLD PLATED CONTACTS

like the S52


S52 2N1 ProxSensor Connector Specifications

• Mini Style Polyurethane contact carrier

• Euro Style PA 6 Nylon contact carrier

Mini Style

Euro Style


S52 2N1 ProxSensor Cable Specifications

• PVC Insulation

Oil Resistant

Non-hygroscopic (will not absorb water)

Non-wicking (will not transmit water)

• High flex stranded wire

• Flying leads are stripped and tinned


Bray Note

S52 Euro Style Connectors

have molded-in barbs

for protective tubing Euro Style


Bray Note

S52 Euro Style Connectors

have FKM O-Rings

for internal weather seals Euro Style


Bray Note

S52 Connectors must have

the coupling nut threaded to

make electrical contact

Therefore, the S52 cannot be left to operate

with a loose coupling nut and

no weather protection

Mini Style


Rule of Thumb

Mini connectors are usually used when AC Sensors are replacing mechanical switches and the wire diameter is already 18 AWG or larger


Rules of Thumb

AC Sensor = Mini Style Connector

DC Sensor = Euro Style Connector

NAMUR Sensor = Euro Style Connector

Mini Style

Euro Style


Rule of Thumb

Connectors:

Females have the Power

(Recessed Metal Contacts are Safer)


S52 2N1 ProxSensor AC Output Specifications

• Operating Voltage: 20 - 250 VAC

• Line Frequency: 50 - 60 Hz

• Continuous Load: <= 500 mA

• Off-State Leakage: <= 1.0 mA

• Voltage Drop: <= 5 VAC

• Temperature Range: -25˚C to +70˚C


S52 2N1 ProxSensor AC Output Configuration

• 5 pin Connector

Mini Style

• No external amplifier required

• Off state leakage current powers the sensor and flows through the load


S52 2N1 ProxSensor AC Output Applications

• Indicator Lights

Instrument Panel Light Bulbs

• Pilot Devices for AC Loads

Relays

Contactors

Solenoids


S52 2N1 ProxSensor DC Output Specifications

• Operating Voltage: 10 - 30 VDC

• Continuous Load: <= 200 mA

• Off-State Leakage: < 20 µA

• Voltage Drop: <= 2 VDC

• Temperature Range: -25˚C to +70˚C

• Short Circuit & Overload Protection

• Reverse Polarity Protection


S52 2N1 ProxSensor DC Output Configuration

• 4 Pin Connector

Euro Style

• No external amplifier required

• PNP (Current Sourcing)

Sensor is wired directly to the +Supply

• NPN (Current Sinking)

Load is wired between the Sensor and the Supply


DC Output Configurations

PNP Sourcing NPN Sinking

Load

Load

+

-


Tank Level Control


Tank Level Control Analogy

Load Load

Sourcing Sinking

Both Methods

Control the Load


S52 2N1 ProxSensor DC Output Applications

• Computers and PLC’s

• Pilot Devices

Relays

Solenoids

Electronic Modules


S52 2N1 ProxSensor NAMUR Output Specifications

• Must be used with external amplifier

• Compatible with Turck MS and MK

• Output specifications vary with amplifier selected


Rule of Thumb

NAMUR Outputs are used in Intrinsically

Safe applications


S52 2N1 ProxSensor NAMUR Operation

• Only the Target, Coil and Oscillator are in the Hazardous Area

• The Detector and Output Electronics are in the Switching Amplifier

• Switching Amplifier has current limiting devices to keep the total electric energy below the Intrinsically Safe ignition curve


Rule of Thumb

Wires on

Intrinsically Safe Devices

are usually

BLUE


S52 2N1 ProxSensor Full 5-Year Warranty

Free Replacement or Repair

of the S52

for up to five years

when used in accordance with the warranty


Rule of Thumb

Do not operate an inductive proximity sensor directly from a wall outlet

without a load.

This is considered a short circuit and can cause damage.


Rule of Thumb

Do not operate an inductive proximity sensor

with an AC high wattage incandescent light bulb as a load.

(High wattage usually means > 60 W)

The inrush current when the bulb is cold can cause an overload.


Rule of Thumb

Do not directly operate a motor with an inductive proximity sensor.

The inrush current can cause an overload.

Always use a motor starter, relay, or other appropriate device.


S52 2N1 ProxSensor Cordsets

• A cord set connects the S52 to field wiring Multi-pin connector on one end

Flying leads on the other end

• Length: 4m (Standard), Special orders can be placed for other lengths.

• Options Connector Style

Coupling Nut Material


S52 2N1 ProxSensor Cord sets

Mini Style & Euro Style

SS or Nickel Plated Brass


Rules of Thumb

Bray Cord sets have GRAY cable and BLUE connector housings

Turck Cord sets have YELLOW cable and YELLOW connector housings


S52 2N1 ProxSensor Receptacles

• Receptacles are placed in electric junction boxes – Multi-pin connector with back

threads on one end

– Flying Leads on the other end

• Options – Connector Style

– Material

– Back Thread


S52 2N1 ProxSensor Receptacles

• Mini Style Anodized Aluminum or SS

1/2 NPSM Back Thread

• Euro Style Nickel Plated Brass

1/4 NPT or PG 9 Back Thread


S52 2N1 ProxSensor Extension Cords

• Extension Cords connect the S52 to Receptacles or Conduit Adapters

Multi-pin Connectors on Both Ends

• Options

Connector Style

Connector Orientation

Coupling Nut Material

Length



• Mini Style

4 meter Length (Standard), Special orders can be placed for other lengths.

Straight or Right Angle Connector Orientation

SS or Nickel Plated Brass Coupling Nuts



• Euro Style

4 meter Length (Standard), Special orders can be made for other lengths.

Straight or Right Angle Connector Orientation

SS or Nickel Plated Brass Coupling Nuts


S52 2N1 ProxSensor Conduit Adapters

• Conduit Adapters place a S52 Connector on the end of a conduit

Multi-pin connector with conduit threads on one end

Flying leads on the other end

• Options

None


S52 2N1 ProxSensor Conduit Adapters

• Mini Style

5 PIN Plated Steel

1/2 Liquid Tight Conduit Back Thread

6 ft. length

• Euro Style

4 PIN Nickel Plated Brass

PG 9 Back Thread

2 meter length


S52 Y Connector

• Allows a S52 ProxSensor and S60/S63 Solenoid to operate from a single cord set

• Connector to S52 ProxSensor – Mini for AC

– Euro for DC and NAMUR

• Connector to S60 Solenoid – DIN 43650 Type “I” for AC / DC

– DIN 43650 Type “A” for NAMUR


S52 Y Connector Types

• AC (has LED indicator for Solenoid) – Use with AC S52 ProxSensors

– Mates with 5 pin Mini cord set

• DC (has LED indicator for Solenoid) – Use with DC S52 ProxSensors

– Mates with 5 pin Euro cord set

• NAMUR (NO LED indicator for Solenoid) – Use with NAMUR S52 ProxSensors

– Mates with 6 pin Euro cord set

Cordset Installation Tying Cables with Cable Ties

Do not bend cable too sharply

Do not over tighten cable tie and pinch the cable

Correct Incorrect


Cordset Installation Proper Bend Radius

Fixed Applications Minimum 3 X Cable Diameter

Moving Applications Minimum 10 X Cable Diameter


Cordset Installation Cable Bundling

Keep the cable bundle loose. Tight bundles create stresses that can damage the conductors

Correct Incorrect


Documents

Bray Series 52 2N1 ProxSensor - 브레이콘트롤㈜bray.co.kr/pdf/S52N1Proxsensor.pdfBasic Product/Sales School S52 2N1 ProxSensor Inductive Proximity Sensor •Senses the proximity