ABB TTH300 Operating Instruction page 72

72 TTH300 HEAD-MOUNT TEMPERATURE TRANSMITTER | OI/TTH300-EN REV. G
12 Maintenance
Safety instructions
CAUTION
Risk of burns due to hot measuring media
The device surface temperature may exceed 70 °C (158 °F),
depending on the measuring medium temperature!
• Before starting work on the device, make sure that it has
cooled sufficiently.
If transmitters are used as intended under normal operating
conditions, no maintenance is required.
Cleaning
When cleaning the exterior of meters, make sure that the
cleaning agent used does not corrode the housing surface and
the gaskets.
When using the device in potentially explosive atmospheres,
observe the notice on cleaning in Protection against
electrostatic discharges on page 12.
13 Repair
Safety instructions
DANGER
Explosion hazard
Explosion hazard due to improper repair of the device.
• Faulty devices may not be repaired by the operator.
• The device may only be repaired by the ABB Service
Department.
On-site repair of the transmitter or exchange of electronic
components is not permissible.
Returning devices
Use the original packaging or a secure transport container of an
appropriate type if you need to return the device for repair or
recalibration purposes.
Fill out the return form (see Return form on page 74) and include
this with the device.
In accordance with the EU Directive governing hazardous
materials, the owner of hazardous waste is responsible for its
disposal or must observe the following regulations for shipping
purposes:
All devices delivered to ABB must be free from any hazardous
materials (acids, alkalis, solvents, etc.).
Please contact Customer Center Service acc. to page 6 for
nearest service location.