FTB700-T INSTRUCTIONS
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TROUBLESHOOTING
Problem
Probable Causes
Things to try…
No analog signal at reading
device
Break in current loop
Check if loop indicator light is on
Dead power supply
Check multimeter voltage on power supply
Reversed polarity
Check polarity
Output stick at 4 mA
No frequency input from flow
sensor
Check flow sensor connections
Check flow sensor polarity
Be sure terminal blocks are firmly plugged in
With flow sensor disconnected, use short wire
to repeatedly short between sensor "S" and "-"
terminals. Output should rise.
mA signal does not match flow
rate
Inadequate voltage
Check load vs. supply chart
Wrong frequency setting
Review setting procedure
Check multimeter voltage on power supply
