Page 30 • MNKS025 ║ Issue/Rev. 0.1 (11/18)
Digital In #2 is currently dedicated to the use as an external Weights and Measures
hardware lock switch.
Consult the factory for the available uses for Digital In #1.
IN1 +
IN1 -
IN2 -
IN2 +
1
2
3
4
CN2
1.67K
1.67K
+VDC
Input
Device
GND
1
2
3
4
CN2
1.67K
EARTH
Digital IN
- OR -
*IN2 is wired identically
1.67K
IN1 +
IN1 -
IN2 -
IN2 +
EARTH
Power
Supply
4.1.6.
Weights & Measures Lock
Weights and Measures parameters can be hardware locked by removing jumper J_WM
which is located directly below CN2. If an external switch is desired, it can be connected
to Digital In #2. In this case, jumper J_WM must be removed to allow the external switch
to work.
4.1.7.
Analog Inputs
Connections for the Analog Inputs are made on the UMCB board using terminal CN6:
Function
Connection Port
4-20mA In #1
CN6 - Terminal 4 and 3
4-20mA In #2
CN6 - Terminal 2 and 3
RTD +
CN6 - Terminal 8
RTD Sig +
CN6 - Terminal 7
RTD Sig -
CN6 - Terminal 6
RTD -
CN6 - Terminal 5
MPU Series C I/O/M Manual
UMCB – Ultrasonic Meter Control Board
Summary of Contents for Smith Meter MPU 1600c
Page 10: ...Page 10 MNKS025 Issue Rev 0 1 11 18 Page intentionally left blank ...
Page 34: ...Page 34 MNKS025 Issue Rev 0 1 11 18 Page intentionally left blank ...
Page 38: ...Page 38 MNKS025 Issue Rev 0 1 11 18 Page intentionally left blank ...
Page 98: ...Page 98 MNKS025 Issue Rev 0 1 11 18 Page intentionally left blank ...
Page 106: ...Page 106 MNKS025 Issue Rev 0 1 11 18 Page intentionally left blank ...
Page 112: ...Page 112 MNKS025 Issue Rev 0 1 11 18 Page intentionally left blank ...
Page 119: ...Issue Rev 0 1 11 18 MNKS025 Page 119 Page intentionally left blank ...