Technical data

• Absolute - output reports flow in both directions. For frequency outputs, Phase B of
the output is 90 degrees out of phase with Phase A.
• Bidirectional - output reports flow on Phase A only in the forward direction and on
Phase B only in the reverse direction.
The outputs 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.
Frequency/Digital Outputs possible configurationsFigure 4-8:
A. Solid blue line denotes valid selection for Frequency/Digital Output 1.
B.
Black dashed -line denotes valid selections for Frequency/Digital Output 2 and Frequency/Digital
Output 3.
CPU Module - Frequency/Digital outputs common ground Group 1Figure 4-9:
CPU Module - Frequency/Digital outputs common ground Group 2Figure 4-10:
Daniel Liquid Ultrasonic Flow Meters calibration and configuration parameters
46 Daniel 3810 Series Operations Manual