Instruction manual

72 RFT9739 Field-Mount Transmitter Instruction Manual
Troubleshooting
continued
Table 7-6. Using informational messages
Message Condition Corrective action(s)
Power Reset • Power failure
•Brownout
• Power cycling
Check accuracy of totalizers
Cal in Progress • Flowmeter zeroing in progress
• Density calibration in progress
• If Cal in Progress disappears, no action
• If Cal in Progress reappears after zeroing is
completed:
-
Check flowmeter cable
-
Eliminate noise, then rezero or recalibrate
Zero Too Noisy Mechanical noise prevented accurate zero flow
setting during auto zero
Eliminate mechanical noise,
if possible, then rezero
Zero Too High
Zero Too Low
Flow not completely shut off during auto zero Completely shut off flow, then rezero
Moisture in sensor junction box caused zero drift Ensure interior of junction box is completely dry,
then rezero
Burst Mode Transmitter configured to send data in burst mode
under HART protocol
Switch burst mode OFF
mA 1 Fixed Communication failure during test or trim of mA
output from terminals 17 (PV+) and 18 (PV–)
Complete trim or test
Polling address of 1 to 15 assigned to RFT9739
for HART in Bell 202
• Change polling address to zero (0)
• Use RS-485 communication standard
mA 2 Fixed Communication failure during test or trim of
output from terminals 19 (SV+) and 20 (SV–)
Complete trim or test
Event 1 On Event (alarm) 1 is ON • If totalizer assigned:
-
Low alarm switches event ON at totalizer reset
-
High alarm switches event OFF at totalizer reset
• If other variable assigned, event switches ON/OFF
when variable crosses setpoint
Event 2 On Event (alarm) 2 is ON
Security Breach Security mode changed from mode 8 • Re-enter security mode 8
• Perform master reset