Maintenance And Repair Work; Defining The Maintenance Interval - Siemens SITRANS P DS III Operating Instructions Manual

Repair and maintenance

11.2 Maintenance and repair work

NOTICE
Electrostatic-sensitive devices
The device contains electrostatic-sensitive devices (ESD). ESD can be destroyed by
voltages far too low to be detected by humans. These voltages can occur if you simply
touch a component part or the electrical connections of a module without being
electrostatically discharged. The damage to a module caused by overvoltage cannot
normally be detected immediately; it only becomes apparent after a longer period of
operating time has elapsed.
Protective measures against the discharge of static electricity:
• Make sure that no power is applied.
• Before working with modules, make sure that you discharge static from your body, for
• Devices and tools used must be free of static charge.
• Hold modules only by their edges.
• Do not touch connector pins or conductor tracks on a module with the ESD notice.
11.2 Maintenance and repair work
11.2.1

Defining the maintenance interval

No maintenance interval has been defined
Device failure, device damage, and risk of injury.
• Define a maintenance interval for recurring tests depending on the use of the device and
• The maintenance interval will vary from site to site depending on corrosion resistance.
184
example by touching a grounded object.
WARNING
your own experience.
SITRANS P DS III/P410 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00053276-08