Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual

Section 3: Electrical installation

3-9000-771 Rev A

May 2012

 

 

 

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 inputs common ground

A.

B.

A. FODO1 and Digital input1 - shared common ground (Group 1)B. FODO2 and FODO3 - shared common ground (Group 2)

Frequency/Digital outputs

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