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62 ANALOG INPUT SETTINGS
Section 3: Electrical installation Daniel 3410 Series Ultrasonic Gas Flow Meter Installation Manual
June 2014 3-9000-759 Rev D
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 3-8 CPU Module - Frequency/Digital outputs common ground
3.6.2 Analog input settings
The Daniel 3410 Series Gas Ultrasonic Flow Meter has the capability to sample analog
temperature (Analog Input 1) and pressure (Analog Input 2) with 4-20 mA signals. These analog
input signals are configured to sink. The two independent analog input circuits are configured
for conventional 4-20 mA service. Also, 24VDC isolated power supply connection is provided for
an external power source. Refer to the Field wiring diagram DMC - 005324 in Appendix A.
A.
A. FODO1 and Digital input1 - shared common ground (Group 1)
B. FODO2 and FODO3 - shared common ground (Group 2)
B.