Troubleshooting - testo 0554 3305 Anwendungshinweise

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8. Troubleshooting

8. Troubleshooting
Fault
Analog output values
too low/too high
No signal
Signal >21mA
Signal <4mA
Dispaly oF
Displayed reading flashes
If your defect has not been solved by the t t e e s s t t o o 6 6 7 7 4 4 0 0 troubleshooting table above,
please contact your dealer or the Testo Customer Service.
Possible causes
- False scaling or unit
- Connection interrupted
or
- Power too low
- Polarity incorrect
- Sensor defective (broken).
- Sensor corroded
- No signal from sensor
- Scaling limits
exceeded
Remedy
Change scaling or unit in Transmitter
Config menu
Check cables
Check power:
Standard plug min. 12VDC
Plug 0554.3302: min. 20VDC
Necessary to change sensor.
Contact your distributor or the Testo
Customer Service.
Necessary to change sensor.
Contact your distributor or the Testo
Customer Service.
Contact your distributor or the Testo
Customer Service
Change scaling limits in Transmitter
Config menu