XA01053F-A
Display FHX50
14
Hauser
Safety instructions:
Installation
FHX50_01
å
1
1
Power supply or certified associated apparatus
(dependent on Hauser measuring device)
2
Display FHX50 in Zone 0/1/2/21 or 22
3
Hauser measuring device
4
Local potential equalization
• Continuous service temperature of the connecting cable: –40 to
+85 °C; in accordance with the range of
service temperature taking into account additional influences of the process conditions
(T
a,min
and T
a,max
+20 K).
Intrinsic safety
• When the device is connected to an intrinsically safe circuit Ex ib, the level of protection changes to Ex ib.
Do not operate intrinsically safe circuits Ex ib in zone 0 or zone 20.
• When the device is connected to an intrinsically safe circuit Ex ic, the level of protection changes to Ex ic.
Do not operate intrinsically safe circuits Ex ic in zone 0, zone 1 or zone 20, zone 21.
Potential equalization
• Integrate the device into the local potential equalization.
Safety instructions:
Zone 0
• In the event of potentially explosive vapor/air mixtures, only operate the device under atmospheric
conditions.
– Temperature: –20 to +60 °C
– Pressure: 80 to 110 kPA (0.8 to 1.1 bar)
– Air with normal oxygen content, usually 21 % (V/V)
If no potentially explosive mixtures are present, or if additional protective measures have been taken
according to EN 1127-1, the device may also be operated under non-atmospheric conditions in accordance
with the manufacturer's specifications.
2
3
4
1
ESC
–
+
E
Hauser
