Blancett B170180 Manual

DESCRIPTION

The B170180 Quad-4 Hall Effect Pickup is a microprocessor-based
sensor for use with the B1750 positive displacement flow meters.
The Quad-4 sensor can detect both uni- and bi-directional flow. The
sensor's mode of operation is determined by an output selection
switch inside the housing. The Quad-4 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 that has a duty cycle
of approximately 50%.
The Quad-4 signal outputs are protected with a self-resetting fuse.
This fuse has a 50 mA nominal trip point. When a trip occurs, turn off
power to the sensor and remove the output load to reset the fuse.
The sensor has a sourcing output configuration when jumpers JP1
and JP2 are shorting pins.
The Quad-4 sensor circuit board has a red and green LED. The red
LED is a status LED which, when the sensor is operating properly,
flashes once every 4 seconds. A fast flash indicates a failure of one or
more of the pickups. The green LED indicates the pulse of the input
signal. Signals above 20 Hz are solid green.

INSTALLATION

1. Make sure that the flow meter sensor cavity is free of debris prior
to installing the pickup.
2. Install the flow meter and sensor.
3. Cycle the power so the sensor functions properly.

Securing the Sensor to the Flow Meter

Use a 9/64 hex key to tighten internal screws.
To secure the sensor to the ow meter,
use a 9/64 hex key to tighten the
internal screws.
1.38 in.
Figure 1: Securing the sensor to the flow meter
SEN-UM-02442-EN-01 (July 2017)
Pickups for B1750 Meter
B170180 Quad-4 Hall Effect Sensor

Test Feature

The Quad-4 pickup is equipped with an output test feature for
readouts before the initial running of your system.
N OTEE:
•
•
•

Electrical Connection for Pin Connector

Pin Number

Wiring Color Code

Quad-4 Operating Modes

Switch
Power must be cycled for new setting to take effect.
Switch setting 8 causes the pickup to output a 10 Hz (+/- 20%)
Phase = +90° pulse output, simulating low flow conditions
without flow through the meter
For sourcing outputs, place the shorting block across JP1 & JP2
(factory default)
Switch setting 9 causes the pickup to output a 250 Hz
(+/- 20%) Phase = -90° pulse output, simulating medium flow
conditions without flow through the meter.
Function
1 NC
2 Output 2
3 NC
4 Output 1
5 Ground
6 Supply
Pin Number
Signal 2
Signal 1
Ground
Supply Voltage
Output 1
0 Flow Direction
1 1 × frequency +90° phase
2 Flow Direction
3 2 × frequency +90° phase
4 Flow Direction
5 Both outputs 4 × frequency in phase
6
7 Foward pulses
8 Test: S1 & S2 == 10 Hz (± 20%) Phase = +90°
9 Test: S1 & S2 == 250 Hz (± 20%) Phase = -90°
1 5
6
2 4
3
Figure 2: Pinout looking at male
connector on sensor
Installation Data
Wire Color
2 Green
4 White
5 Black
6 Red
Output 2
Signal 2
2 × frequency
4 × frequency
Reserved
Reverse pulses
SWITCH JP2 JP1
Figure 3: Top view of circuit board
with vew of LEDs and switch