Analog Transmitter AT1
Hauser
19
6
Maintenance
After adjusting for transmitter and receiver installation, there is no need to consider about operating procedure.
Please check on AT1 periodically in accordance with following maintenance procedure.
Repaires
The Hauser repair concept assumes that the measuring devices have a modular design and that
customers are able to undertake repairs themselves. Spare parts are contained in suitable kits. They contain
the related replacement instructions. All the spare parts kits which you can order from Hauser for
repairs to the Analog Transmitter AT1 are listed with their order numbers on "7.1 Spare parts".
Please contact Hauser Service for further information on service and spare parts.
Repaires to Ex-approved devices
When carrying out repairs to Ex-approved devices, please note the following:
• Repairs to Ex-approved devices may only be carried out by trained personnel or by the Hauser
Service.
• Comply with the prevailing standards, national Ex-area regulations and certificates.
• Only use original spare parts from Hauser.
• When ordering a spare part, please note the device designation on the nameplate. Only replace parts with
identical parts.
• Carry out repairs according to the instructions. On completion of repairs, carry out the specified routine test
on the device.
• Only Hauser Service may convert a certified device into a different certified variant.
• Document all repair work and conversions.
Checking spot
Checking procedure
Countermeasure
Converter
Check for the discrepancy between the
level at the transmitter (after the
conversion) and the level at the tank
gauge.
If there is any discrepancy, readjust
the setting accordingly.
Alarm cam
Check alarm cam (switching point)
If switching point shifts from the right
place, adjust the point again.
Alarm micro-switch
Check a contact performance.
Replace performance failure micro-switch.
Wiring and connected
terminal
Check disconnection and connection
terminal loose
6 Maintenance
