AW Gear Meters IR-P User Manual

IR-P

Infrared Optical Sensor

FOR CLEAR FLUIDS ONLY

Installation and Technical Data Guide

AW Flow Meters 8809 Industrial Drive, Franksville, WI Phone: [phone] Fax: [phone]

Email: [e-mail] www.awflowmeters.com

Rev 09/05

Description:

The IR-P is an infrared optical sensor which is compatible with the AW Flow Meters JVK series Positive
Displacement plastic gear flow meters. The sensor detects the rotation of the flow meter gears and emits a
frequency signal proportional to flow. The output signal is a square wave pulse which has a duty cycle of
approximately 50%.

IR-P signal outputs are protected with a self-resetting fuse. This fuse has a 50mAnominal trip point. When a
trip occurs, turn off power to the sensor and remove output load to reset fuse.

The IR-P sensor’s output configuration is: IR-PAfor a sinking output, IR-PB for a sourcing output.

Installation:

• Ensure that the flowmeter sensor cavity is free of debris prior to installing pickup

• Amounting bracket is required for sensor mounting

• 4 Steps to properly install sensor:
1- Securely fasten mounting bracket on flow meter
2- Turn set screws counter clockwise until they are not visible inside the mounting bracket
3- Install sensor into mounting bracket until sensor bottoms out in the sensor hole
4- Tighten set screws by turning clockwise

NOTE: DO NOT OVER TIGHTEN SET SCREWS OR SENSOR DAMAGE WILL OCCUR!

NOTE: WIRING SHOULD BE INSTALLED BY A QUALIFIED INSTRUMENTATION TECHNICIAN

IR-PA IR-PB Wire Color

NC NC Green

Output Output White

Ground Ground Black

Supply Supply Red

AW Flow Meters Wiring Color Code:

Part number configuration:

IR-P sensors can be used with all AW Flow Meters JVK Positive
Displacement gear flow meters only.

IR-PA for a sinking output, IR-PB for a sourcing output

Note: In order to recieve correct mounting bracket with your sensor ­you must specify meter part number when ordering

IR-P Infrared Optical Sensor

FOR CLEAR FLUIDS ONLY

Installation and Technical Data Guide

AW Flow Meters 8809 Industrial Drive, Franksville, WI Phone: [phone] Fax: [phone]

Email: [e-mail] www.awflowmeters.com

Rev 09/05

IR-P

A Sinking Output Circuit

~40 Ohm

SUPPLY

OUTPUT

GROUND

Analog
Switch

• User may need to add external components to interface to
displays or other instruments

• User must limit output voltage to Supply -1V

• Max current sinking capability: 50mA

Supply Voltage: +10 to 26 Volt DC
Supply Current: 20 mA ± 0.10
Duty Signal: 50% ± 15%
Minimum Signal: 0.5 Hz
Frequency Output: TBD
Driving Capacity: 50 mA Max resistive load
Output Impedance: ~ 40 Ohm - analog switch and self-resetting fuse
Temperature Range: -40° F to 185° F (-40° C to 85° C)

Technical Dat

a:

• Signal output square wave:

V

high

= Supply -1V @ no output load

V

low

= 0.1V

• Max sourced output voltage: Supply -0.5V

• Max current sourcing capabilities: 50mA

~40 Ohm

SUPPLY

OUTPUT

GROUND

Analog
Switch

IR-PB Sourcing Output Circuit