Endress+Hauser Gammapilot FMG50 - 8 Diagnostics and Troubleshooting; 8.1 System Error Messages

Gammapilot FMG50 Diagnostics and troubleshooting
Endress+Hauser 83
8 Diagnostics and troubleshooting
8.1 System error messages
8.1.1 Error signal
Errors occurring during commissioning or operation are signaled in the following way:
• Error symbol, display color, error code and error description on the display and operating
module.
• Current output, customizable:
• MAX, 110%, 22 mA
• MIN, -10%, 3.6 mA
Standard setting: MIN, -10%, 3.6 mA
The max. alarm current can be configured in the 21.5 to 23.0 mA range. The default
value is 22.5 mA.
8.1.2 Types of error
• Error-free operation: display is lit green
• Alarm or warning: display is lit red
• Alarm: the output current adopts a value that has been defined beforehand. An error
message is displayed
• MAX, 110%, 22 mA
• MIN, -10%, 3.8 mA
• Warning: the device continues to measure. An error message is displayed (alternating
with the measured value)
Error indication via a display color change only works if the operating voltage is not
below 16 V
8.2 Possible calibration errors
Fault Possible causes Solution
Pulse rate too low with empty
vessel
Radiation source switched off Switch on source at the source
container
Incorrect alignment of source housing Realign angle of emission
Buildup in the vessel Clean vessel or
Recalibrate (if buildup is stable)
Fittings in the vessel have not been
considered in the activity calculation
Recalculate activity and change
radiation source if required
Pressure in the vessel has not been
considered in the activity calculation
Recalculate activity and change
radiation source if required
No radiation source in the source
container
Load radiation source
Radiation source too weak Use source with higher activity
If a modulator is used Modulator is not mounted correctly
Modulator is not in operation
Radiation is not set to modulated
If a collimator is used Incorrect alignment of radiation entry
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