12
TROUBLESHOOTING
Symptom
Possible Cause(s)
Corrective Action
A. No output signal.
1. Incorrect or no input power.
2. Not wired correctly.
3. Broken connection.
4. Defective PC board
connector.
5. Defective unit.
6. Batteries installed.
1. Supply correct power
requirements.
2. Check owner’s manual
for correct installation.
3. Check resistance to
determine location of
break.
4. Contact distributor or
factory for replacement
5. Contact distributor or
factory for replacement.
6. Remove batteries and
cycle loop power.
B. Signal not between
4-20mA when fluid
is flowing.
1. ZERO and SPAN not set
correctly on the Q9 display.
2. 4-20 mA Module output signal
"ZERO" and "SPAN" does
NOT match customer's
recording device "ZERO" and
"SPAN" settings.
3. Q9 display calibration is NOT
optimized for best results.
1. Check Q9 owner’s
manual for instructions
on how to set ZERO and
SPAN for meter.
2. Reconfigure 4-20mA
Module output signal
"ZERO" and "SPAN" to
match Customer's
recording device "ZERO"
and "SPAN" (or vice
versa).
3. Verify Q9 display value is
giving correct flowrate.
C. Scaled Pulse
output not working
or not shown in Q9
configuration
options menu.
1. Batteries being installed will
disable the Scaled Pulse
output feature.
1. Remove batteries, cycle
loop power and
reconfigure the Scaled
Pulse output feature on
Q9 display.
D. Pulse output values
are not giving
accurate total
volumes.
1. Customer's "pulse Input
device" (pulses per unit of
volume) does not match
module pulse output (pulses
per unit of volume).
2. Q9 display calibration is NOT
optimized for best results.
1. Reconfigure module
pulse output (or
customer's "pulse input
device") to match in
pulses per unit of volume
(module output pulses
per unit of volume = input
pulses per unit of
volume).
2. Verify Q9 display value is
giving correct volume
totals.
