Endress+Hauser Turbimax CUS51D - Diagnostics and Troubleshooting; General Troubleshooting

Diagnostics and troubleshooting Turbimax CUS51D
38 Endress+Hauser
9 Diagnostics and troubleshooting
9.1 General troubleshooting
When troubleshooting, the entire measuring point must be taken into account:
• Transmitter
• Electrical connections and cables
• Assembly
• Sensor
The possible causes of error in the following table refer primarily to the sensor.
Problem Check Remedial action
Blank display, no sensor reaction • Line voltage at transmitter?
• Sensor connected correctly?
• Buildup on optical windows?
‣
Connect mains voltage.
‣
Establish correct connection.
‣
Clean sensor.
Display value too high or too low • Buildup on optical windows?
• Sensor calibrated?
‣
Clean device.
‣
Calibrate device.
Display value fluctuating greatly Is the mounting location correct?
‣
Select a different mounting location.
‣
Adjust measured value filter.
Pay attention to the troubleshooting information in the Operating Instructions for the
transmitter. Check the transmitter if necessary.