AW Gear Meters Quad-4 User Manual

Quad-4 Hall Effect Pickup

Installation and Technical Data Guide

Rev 07/09

Description:

The Quad-4 Hall Effect Pickup is a microprocessor-based sensors for use with the JV-80/-90KL series of
positive displacement flow meters. The Quad-4 sensor can detect both uni- and bi-directional flow. The
sensors’ mode of operation is determined by an output selection switch located inside the housing. The
Quad-4 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%.

Quad-4 signal outputs are protected with a self-resetting fuse. This fuse has a 50mA nominal trip point.
When a trip occurs, turn off power to the sensor and remove output load to reset fuse. The sensor has two
different output configurations: sinking output when jumpers JP1 & JP2 are removed and sourcing when
jumpers JP1 & JP2 are shorting pins.

The Quad-4 sensor circuit board is equipped with a red and green LED. The red LED is a status LED which,
when the sensor is operating properly, will flash once every 4 seconds, a fast flash will indicate a failure of
one or more of the pick-ups. The green LED indicates the pulse of the input signal. Note that signals above
20Hz will look as solid green.

Installation:

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

• Install flow meter and sensor - CYCLE

• Sensor is equipped with an output test feature for readouts before initial running of your system

POWER - or sensor will not function properly!!

TEST FEATURE: Note: Power must be cycled for new setting to take effect

• Switch setting 8 will cause the pick-up to output a 10 Hz (+/- 20%) Phase = +90 deg pulse output, simulating
low flow conditions without flow through the meter.

• For sinking outputs remove shorting block from JP1 & JP2
For sourcing outputs place shorting block across JP1 & JP2 (factory default)

• Switch setting 9 will cause the pick-up to output a 250 Hz (+/- 20%) Phase = -90 deg pulse output, simulating

medium flow conditions without flow through the meter.

NOTE: WIRING SHOULD BE INSTALLED BY A QUALIFIED INSTRUMENTATION TECHNICIAN

Electrical Connection for Pin Connector

Pin Number Function

1 NC

2 Output 2

3 NC

4 Output 1

5 Ground

6 Supply

Pinout looking at male

connector on sensor

1

2

5

6

4

3

Top view of circuit board with

view of LED’s and switch

Quad-4 Operating Modes

AW Company wiring color code:

Pin Number Wire Color
Signal 2: 2 Green
Signal 1: 4 White
Ground: 5 Black

Supply Voltage: 6 Red

Switch Output 1 Output 2

0 Flow Direction Signal 2
1 1x frequency +90 deg phase
2 Flow Direction 2x frequency
3 2x frequency +90 deg phase
4 Flow Direction 4x frequency
5 Both outputs 4x frequency in phase
6 Reserved
7 Forward pulses Reverse pulses
8 Test: S1 & S2 == 10 Hz (+/- 20%) Phase = +90 deg.
9 Test: S1 & S2 == 250 Hz (+/- 20%) Phase = -90 deg.

Note: Power must be cycled for new

setting to take effect

AW Flow Meters - Franksville, WI Phone: [phone] Fax: [phone]

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

Quad-4 Dual Hall Effect Pickup Module

Installation and Technical Data Guide

Technical Data:

Supply Voltage: +10 to 27 Volt DC

Supply Current: 75 mA @ 24 VDC

Duty Signal: 50% ± 15%

Minimum Signal: 0.5 Hz

Maximum Signal: 1,000 Hz

Frequency Output: Flow dependent, up to 2,000 Hz

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)

Rev 07/09

Sinking Output Circuit

Analog
Switch

~40 Ohm

SUPPLY

OUTPUT

GROUND

Sourcing Output Circuit - Default from Factory

SUPPLY

Analog
Switch

~40 Ohm

OUTPUT

GROUND

• Output selection jumper off: remove shorting block from
JP1 & JP2

• 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

• Output selection jumper on: place shorting block across
JP1 & JP2

• Signal output square wave :
V

= Supply -1V @ no output load

high

V

= 0.1V

low

• Max sourced output voltage: Supply -0.5V

• Max current sourcing capabilities: 50mA

AW Flow Meters - Franksville, WI Phone: [phone] Fax: [phone]

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