Dräger Polytron SE Ex PR M2 DD User Manual

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Sensing head SE Ex LC NPT1 DD for a measuring
range of 0 to 10 %LEL
The sensing head Polytron SE Ex LC NPT1 DD com-
prises a gas sensor type DrägerSensor LC NPT (protec-
tion type flameproof enclosure “d” resp. enclosure
protection IP 6x).
Sensing head SE Ex HT M DD for a measuring range
of 0 to 100 %LEL and operating temperature up to
150 °C
The sensing head Polytron SE Ex HT M comprises a
gas sensor type DrägerSensor HT M DD (protection
type flameproof enclosure and increased safety, “d” re-
sp. enclosure protection IP 6x, approved as XDS 0211).
Ambient Temperature and Temperature
Classes
The allowed ranges of ambient temperatures (Ta
min
and
Ta
max
) and the associated temperature classes and
maximum surface temperatures are listed in the follow-
ing table:
In conjunction with the central units Polytron SE Ex or
REGARD respectively REGARD-1 with pre-adjusted
alarm thresholds audible and visible alarm devices or
automatic countermeasures can be activated before the
detected gases or vapours can form dangerous flamma-
ble mixtures with air.
Sensing head
Polytron
Part
number
Ta
min
Ta
max
temperature
class
surface
temperature
max.
voltage
max.
power
SE Ex PR M1 DD 6812711 -50 °C +40/55/85 °C T6/T5/T4 +130 °C 30 V 2 W
SE Ex PR M2 DD 6812710 -50 °C +40/55/85 °C T6/T5/T4 +130 °C 30 V 2 W
SE Ex PR M3 DD 6812718 -50 °C +40/55/65 °C T6/T5/T4 +130 °C 30 V 2 W
SE Ex PR NPT1 DD 6812800 -40 °C +40/55/60 °C T6/T5/T4 +130 °C 30 V 2 W
SE Ex LC M1 DD
1)
6812722 -40 °C +40/50/85 °C T6/T5/T4 +130 °C 60 V 1 W
SE Ex LC M2 DD
1)
6812721 -40 °C +40/50/85 °C T6/T5/T4 +130 °C 60 V 1 W
SE Ex LC M3 DD 6812719 -40 °C +40/50/65 °C T6/T5/T4 +130 °C 60 V 1 W
SE Ex LC NPT1 DD 6812801 -40 °C +40/50/60 °C T6/T5/T4 +130 °C 60 V 1 W
SE Ex HT M DD 6812720 -50 °C +40/55/85/
150 °C
T6/T5/T4/T3 +130 °C
+195 °C
30 V 2 W
1) Sensor performance specified up to +65 °C.
WARNING
Not to be used in oxygen enriched atmospheres
None of the sensing heads and sensors mentioned
here is certified and approved to be operated in oxy-
gen-enriched atmospheres.

Dräger Polytron SE Ex PR M2 DD Specifications

General

Brand	Dräger
Model	Polytron SE Ex PR M2 DD
Category	Accessories
Language	English