Filter
Top Products
Configuration and Use Manual 221
Diagnostics and Troubleshooting
Diagnostics and Troubleshooting Specifications – Model 3350/3700Specifications – Model 3300/3500Measurement Performance
Calibration alarms
If a calibration procedure fails:
1. Ensure that there is no flow through the sensor.
2. Eliminate mechanical noise, if possible.
3. Ensure the interior of the sensor junction box (if present in your installation) is dry.
4. Retry the calibration procedure.
Table 22-7 Using batch alarms
Alarm message Cause Action
Time Out No flow was detected for the number of
seconds configured for time out
• Check valves, piping, and pumps for proper operation
• Check flow source configuration.
• Increase number of seconds for time out. See
Section 11.5.
• After cause has been diagnosed, press END to end
batch or RESUME to resume batch.
• If you are using a Model 3300 or Model 3350, verify
that the controller is receiving frequency input from the
remote transmitter.
Overrun • Batch total has exceeded target
• Batch has not ended
• Flow is still being measured
• End batch if required.
• Check wiring for discrete output indicating overrun.
• Check device connected to discrete output indicating
overrun.
• Enable batch AOC. See Section 11.5.
• Increase quantity configured for overrun.
• Verify that low-flow cutoff is correctly configured for
process conditions.
• Re-zero flowmeter.
• After cause has been diagnosed, press RESET or
START to start new batch.
Start Without Reset Operator attempted to start batch
without pressing RESET
• Press RESET, then press START or
• Set Reset on start option to Yes. See Section 11.5.
Start Not OK Enable batch control option is set to
No
Set Enable batch control option to Yes. See Section 11.5.
Batch flow source is not configured Configure batch flow source. See Section 11.4.
Control functions have not been
assigned to discrete outputs
Assign control functions such as primary valve,
secondary valve, or pump to discrete outputs. See
Section 8.3.2).
An alarm is active Clear all alarm messages. See Section 22.6.
Discrete input is configured to inhibit
batch
Shut off discrete input.
Target value is zero Change target value. See Section 11.6.
If enhanced density is enabled and an
enhanced density variable has been
configured as the batch flow source, a
valid enhanced density curve has not
been assigned to the current preset
Configure batch preset for a valid enhanced density
curve. See Section 11.6.
Output is fixed, calibration is in
progress, or slug flow has occurred
Correct the condition and retry.