Siemens SITRANS TH100 - Connecting; Basic Safety Notes

Connecting
5
5.1 Basic safety notes
WARNING
Connecting or disconnecting in explosive environments
Connecting or disconnecting a po
wered device in explosive environments can lead to an
explosion.
• Connect and disconnect in non-explosive environments.
- or-
• Remove power to the device before connecting or disconnecting in explosive atmosphere.
WARNING
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device or its components have already been operated in non-intrinsically safe circuits or
the electrical speci󹪝cations have not been observed, the safety of the device is no longer
ensured for use in hazardous areas. There is a risk of explosion.
• Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
circuit.
• Observe the speci󹪝cations for the electrical data on the certi󹪝cate and/or in Technical data
(Page 79).
WARNING
Incorrect selection of type of protection
Risk of e
xplosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1. Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not used
permanently unrecognizable on the nameplate.
SITRANS TH100/TH100Slim/TH320/TH420/TR320/TR420/TF320/TF420
Compact Operating Instructions, 07/2021, A5E41865021-AE 41