Defining The Maintenance Interval - Siemens 7MF03 Series Compact Operating Instructions

Hot surfaces
Risk of burns during maintenance work on parts having surface temperatures exceeding
70 °C (158 °F).
● Take corresponding protective measures, for example by wearing protective gloves.
● After carrying out maintenance, remount touch protection measures.
7.3.1

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.
Maintenance during continued operation in a hazardous area
There is a risk of explosion when carrying out repairs and maintenance on the device in a
hazardous area.
● Isolate the device from power.
- or -
● Ensure that the atmosphere is explosion-free (hot work permit).
Impermissible accessories and spare parts
Risk of explosion in areas subject to explosion hazard.
● Only use original accessories or original spare parts.
● Observe all relevant installation and safety instructions described in the instructions for
SITRANS P320/P420 with 4 to 20 mA/HART
Compact Operating Instructions, 09/2018, A5E38874562-AB
CAUTION
WARNING
your own experience.
WARNING
WARNING
the device or enclosed with the accessory or spare part.
Service and maintenance
7.3 Maintenance and repair work
57