Dwyer BAT - Manual (Page 3)

PL-OM-65200384-082012
8/20/12
cONNEcTIONS and TROuBLESHOOTING
TROuBLESHOOTING
cONNEcTIONS
Problem Probable Cause Try...
No analog signal at
reading device
Output stuck at 4 mA
mA signal does not
match flow rate
Break in current loop
Dead power supply
Reversed polarity
No frequency input from flow sensor
Inadequate voltage
Wrong frequency setting
Check if loop indicator light is on
Check multimeter voltage on power supply
Check polarity
Check if flow sensor rotor is turning freely
(mechanical meters only)
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 “sig” and
“-” terminals. Output should rise.
Verify 3-second pulse output (Series EFS2
and IEFS meters only)
Check load vs. supply chart
Review setting procedure
Check multimeter voltage on power supply
The Series BAT can be wired to either a mechanical meter or an
electromagnetic flow meter. See alternative configurations below.
Dwyer Instruments, Inc. • 102 Indiana Highway 212 • Michigan City, IN 46360 • USA
(P) 219.879.8868 • (F) 219.872.9057 • 1.800.872.9141 • www.dwyer-inst.com
BAT