Atex DGTt2-ex Installation Manual

Code no. 20711066
Rev. 3.9
Page 24/33
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DGTt2-ex Gas Detector

ATEX Marking:
Sensor Type:
Output Signals:
Operating Voltage:
Max. Power Consumption:
Cabling:
Sensor Life (clean air):
Operating Temperature:
Operating Humidity:
Degree of Protection:
Weight:
Note:
Indication lights:
Installation Manual Gas Detector ATEX
II 3 G Ex ec II C T4 Gc
Solid-State
logarithmic response, DGTt2r-ex includes a
relay 24 V / 1 A for resistive load, additionally
a buzzer and acknowledge button for buzzer.
24 VDC ±20 %, regulated
4.0 W
4-electrode, 4-wire connection,
For correct cable specification refer to EN
60079-14
3...5 years, typical
Ammonia -3
Other gases -20 +40 °C, (reduced
sensitivity -
IP54
390 g
The calibration is done by using the handheld
calibration device (IRC) via infrared link.
Therefore the infrared lens of the device must
be clearly visible.
Incorrect connections may damage the device.
DGTt2-ex and DGTt2r-ex can be installed in
ATEX zone 2.
Constant green: Normal operation mode.
Constant yellow: Sensor failure.
Blinking red:
)
-condensing
Gas alarm. Blinking will stop
when the gas concentration
is lower than the alarm limit.