Badger Meter FC-5000 User Manual page 16

Installing the Flow Display
Flow Sensor Input
The FC-5000 Flow Display is designed to accept pulses from open collector
transistors or dry contact closure transmitters�
Before making any connections:
• Always use shielded wire to protect the signal line from external noise (ground
shield to terminal #3)�
• Make sure the signal lines are not bundled with or touching power lines�
N OTEE: In the tables below, OF Pin refers to RF type pickups/amplifiers�
TB5 - Single Channel Pulse Input Terminal
Connector
Pin
1
2
3 Sensor Input/Common (-)
4
TB5 - Dual Channel Pulse Input Terminal
Connector
Pin
1 Excitation (+12V output)
2
3
4
5
Powering Radio Frequency (RF) Type Pickups
Radio Frequency (RF) type pickups require a power source to generate a radio
frequency field� Similar to magnetic pickups, as fluid velocity provides rotational
energy on the flow meter rotor, the field generated by the pickup is disturbed,
producing output pulses that are proportional to flow rate�
N OTEE:
Maximum current draw from the Excitation pin cannot exceed 200 mA� RF
style pickups will require a signal conditioning amplifier�
0...5V, 0...10V Configuration
From
Pickup/
Ampli er
Page 16
Function
Sensor Excitation (+)
Sensor Input (+)
Shield (Chassis GND)
Table 6: Flow sensor input, single
Function
Sensor Input CH1
Sensor Common (GND)
Sensor Input CH2
Shield (Earth GND)
Table 7: Flow sensor input, dual
Figure 10: Pickup configurations
CTL-UM-02765-EN-01
Oeference
Pin
19
20
21
22
Oeference
Pin
19
20
21
22
23
Source Voltage Configuration
From
Pickup/
Ampli er
OF Pin
A
C
B
—
OF Pin
A
C
B
C
-
To
Flow
Display
April 2019