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Frequency/Digital outputs
Section 3: Electrical installation
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
June 2017
3-9000-765 Rev H
Output for FODO1 and Digital Output1 (Group 1 on the CPU Module) share a common ground
and have 50V isolation. FODO2 and FODO3 (Group 2 on the CPU Module) share a common
ground and have 50V isolation. This allows an output to be connected to a different flow
computer. The outputs are opto-isolated from the CPU Module and have a withstand voltage of
at least 500V rms dielectric.
Figure 3-6 CPU Module - Frequency/Digital outputs common ground - Type 2
A. FODO1 and Digital input1 - shared common ground (Group 1)
B. FODO2 and FODO3 - shared common ground (Group 2)
Table 3-5 Frequency/Digital Outputs possible configurations
Frequency/Digital output
Source configuration
Frequency /Digital Output 1
Frequency /Digital Output 2
Frequency /Digital Output 3
Frequency /Digital Output4
Frequency /Digital Output 5
Frequency /Digital Output 6
•
Frequency output 1A
•
Frequency output 1B
•
Digital output 1A
•
Digital output 1B
•
Frequency output 2A
•
Frequency output 2B
•
Digital output 2A
•
Digital output 2B
