Service And Maintenance; Maintenance - Siemens SITRANS TH400 Operating Instructions Manual

Service and maintenance

8.1

Maintenance

The device is maintenance-free. However, a periodic inspection according to pertinent
directives and regulations must be carried out.
An inspection can include check of:
● Ambient conditions
● Seal integrity of the process connections, cable entries, and cover screws
● Reliability of power supply, lightning protection, and grounds
Impermissible repair and maintenance of the device
• Repair and maintenance must be carried out by Siemens authorized personnel only.
Impermissible repair of explosion protected devices
Danger of explosion in areas subject to explosion hazard.
• Repair must be carried out by Siemens authorized personnel only.
Cleaning the enclosure
● Clean the outside of the enclosure and the display window using a cloth moistened with
● Do not use aggressive cleaning agents or solvents. Plastic components or painted
Electrostatic charge
Danger of explosion in hazardous areas if electrostatic charges develop, for example, when
cleaning plastic enclosures with a dry cloth.
• Prevent electrostatic charging in hazardous areas.
SITRANS TH400
Operating Instructions, 03/2014, A5E01018688-03
WARNING
WARNING
water or a mild detergent.
surfaces could be damaged.
WARNING
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