Siemens Sitrans P500 Operating Instructions Manual page 33

Danger with "flameproof enclosure" protection
Danger of explosion in hazardous areas. An explosion may be caused by hot gas escaping
from the flameproof enclosure if there is too little space between it and the fixed parts.
• Ensure that there is a space of at least 40 mm between the flameproof joint and the
①
Loss of explosion protection
Danger of explosion in hazardous areas if the device is open or not properly closed.
• Close the device as described in Chapter "Connecting the device (Page 56)".
Use of incorrect device parts in potentially explosive environments
Devices and their associated device parts are either approved for different types of
protection or they do not have explosion protection. There is a danger of explosion if device
parts (such as covers) are used for devices with explosion protection that are not expressly
suited for this type of protection. If you do not adhere to these guidelines, the test
certificates and the manufacturer warranty will become null and void.
• Use only device parts that have been approved for the respective type of protection in
• Do not swap device parts unless the manufacturer specifically ensures compatibility of
SITRANS P500 with HART
Operating Instructions, 12/2014, A5E02344528-09
WARNING
fixed parts.
Flameproof joint
WARNING
WARNING
the potentially explosive environment. Covers that are not suited for the "explosion-
proof" type of protection are identified as such by a notice label attached to the inside of
the cover with "Not Ex d Not SIL".
these parts.
Install
4.1 Basic safety instructions
33