Endress+Hauser micropilot FMR 231 E Sicherheitshinweise Seite 9

Micropilot FMR 231 E
Safety notes for installation in hazardous areas:
1) Install according to the manufacturer's instructions and other valid standards and guidelines.
2) The Micropilot is to be connected to the local equipotential bonding system.
The input circuit is galvanically connected to the housing.
3) The dependency of the permissible ambient temperature of the electronic housing upon the application and temperature
class is given in Tables 1 and 2.
4) If the housing is realigned, check that the locking screw is screwed tight again, see operating manual.
5) Apparatus with the designation II 1/2 G:
This certificate is valid for PPS and conductive PTFE antennas (black antennas) only.
6) A label must be attached to the terminal compartment: " Do not open in explosive atmospheres when the power is on ".
Safety notes for Zone 0:
7) Potentially explosive vapour/air mixtures may arise under atmospheric conditions only:
If no potentially explosive mixtures are present, or if additional protective measures have been taken, e.g. EN 1127-1,
the transmitters may be operated under other than atmospheric conditions in accordance with the manufacturer's
specifications.
8) The antenna may be employed only in those media, for which the wetted parts are known to be suitable.
9) The construction of the transmitter renders unnecessary any additional overvoltage protection for plants that must be
protected against risk of ignition through lightning in accordance with German National Guidelines TRbF 100 No. 8.
Endress+Hauser
–20 °C ≤ T ≤ +60 °C
0.8 bar ≤ p ≤ 1.1 bar
en
XA 015F-A
3