Installation Manual Gas Detector ATEX
Code no. 20711066
Rev. 3.9
Page 21/33
_____________________________________________________________________________
DGTk2-ex Gas Detector
ATEX Marking:
II 3 G Ex ec II C T4 Gc
Sensor Type:
Catalytic
Output Signals:
DGTk2r-ex includes a relay 24 V / 1 A for
resistive load, additionally a buzzer and
acknowledge button for buzzer. Activation
delay is set at factory, see production
documents.
Operating Voltage:
24 VDC ±20 %, regulated
Max. Power Consumption:
4.0 W
Cabling:
4-electrode, 4-wire connection,
For correct cable specification refer to EN
60079-14
Sensor Life (clean air):
5 years, typical
Typical T90 Response:
according IEC 60079-29-1
Operating Temperature:
-
Operating Humidity:
-condensing
Degree of Protection:
IP54
Weight:
620 g
Note:
Calibration is done by using IR Communicator.
Keep the red IR lens at the side of the device
visible.
Keep test gas concentration within range of the
Recalibrate:
at least once a year.
if on-site ambient pressure deviates more
than ±5 % from normal pressure.
if exposed to a shock e.g. a drop.
Incorrect connections may damage the device.
The sensor element shall be oriented
downwards.
DGTk2-ex and DGTk2r-ex can be installed in
ATEX zone 2.
