Maintenance/Checking; Add-On Parts - Siemens SITRANS P DS III Operating Instructions Manual

Functional safety

8.5 Maintenance/Checking

8.5 Maintenance/Checking
Interval
We recommend that the functioning of the pressure transmitter be checked at regular
intervals of one year.
Checking the safety function
Check the safety function as detailed in Settings (Page 132).
Checking safety
You should regularly check the safety function of the entire safety circuit in line with IEC
61508/61511. The testing intervals are determined during the calculation for each individual
safety circuit in a system (PFD
Electronics and measuring cell
The safety function of the transmitter is only ensured if you use the electronics, measuring
cell, display and connection board delivered by the factory. These components cannot be
replaced.
8.6

Add-on parts

This chapter contains safety information for add-on parts.
Add-on parts unsuitable for process medium
Danger of injury or damage to device.
If the process medium is not suitable for the parts which come into contact with it, hot
and/or toxic or corrosive substances could be released.
• Refer to the information in the chapter "Technical data (Page 191)".
• Make sure that the add-on parts are suitable for the corresponding application with
134
WARNING
regard to materials, temperature of process medium, and pressure.
).
AVG
Operating Instructions, 06/2013, A5E00053276-07
SITRANS P DS III with PROFIBUS PA