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Datamate 2200 O&M
Page 43
8.3 Transmitter Diagnostic Messages
The Datamate 2200 transmitter provides a large number of diagnostic messages, which
can be viewed on the optional LCD display or in the NexLink software program.
Alarms
DSP Failure Alarm
• The Datamate 2200 digital signal processor has temporarily lost communication
synchronization
RTD Failure Alarm
• The transducer RTD is not functioning
• Incorrect wiring at transmitter
Sensor Error Alarm
Indicates that one of the sensor voltages is less than 60 mVrms
• The transducer sensors are defective
• Incorrect wiring at transmitter
Temperature Alarm
• The maximum process temperature for the transducer has exceeded the set point
or transducer maximum temperature
Tubes Not Vibrating Alarm
This alarm is displayed when both sensor signals are less than 60 mVrms. Some
conditions that may cause this are:
• Flow meter tubes are not full
• Datamate 2200 Barrier board defective
• Check cable for continuity
• Density stratification of the process fluid
Errors
4-20mA Failure/Analog Fault (1, 2 or 4) Error
• The output current is incorrect. Possible causes: loop resistances greater than
1000 ohms and improper wiring.
DCM Error
• Data Code Memory has been corrupted. Recycle power to the Datamate 2200.
DSP Lost Event Error
• Internal communications failure, missing calculations event
DSP PLL Not Locked Error
• Unable to track tube frequencies or phase shift due to low sensor voltages
Pulse Output Buffer Overflow Error
• The buffer for storage of pulses has exceeded capacity
Summary of Contents for Datamate 2200
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