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EE300Ex (with remote probe) 2 channels via intrinsically safe power supply device:
Hazardous location T4...T1
Zone 0 / 20
Division 1
Class I,II,III
Group A, B, C, D, E, F, G, H
3.5 Probe Mounting
The probe of the EE300EX sensor shall be located
at the most representative location for the RH and
T of the process to be monitored.
For accurate measurement it is of paramount
importance to avoid temperature gradients along
the probe.
Whenever possible, install the entire probe inside
the environment to monitor. If the probe is installed
into a wall, than isolate thermally the backend of
the probe looking out of the wall.
The probe shall be mounted horizontally or vertically, with the tip of the probe pointing downwards.
In applications where condensation is likely to happen:
• The cable shall form a drip
loop close to the probe.
• Use the drip water protection
(see datasheet accessories,
code HA010503) for vertically
mounted probe.
18
Zone 1 2 / 21 22
Division 2
Class I,II,III
Group A, B, C, D, E, F, G, H
CH2
CH1
4-20mA ia
4-20mA ia
The bushing must conform
to the hazard requirements
of a Zone or Division im-
plementation. The supplied
screw connection meets
this requirement!
Horizontal mounting
Unclassified location
intrinsically safe
sensor supply unit
+
+
Control
-
-
+
+
-
-
L+
L-
Power supply
Wall
r > 30mm
60% rH
Relative Humidity
Temperature
17°C
Vertical mounting
User Manual EE300Ex Humidity / Temperature Sensor
+
-
45% rH
21°C
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