Dräger Polytron SE Ex PR NPT1 DD - Page 44

44
Sensing Head Polytron SE Ex HT M DD
Operating parameters
- constant sensor current 255 / 270 mA
- voltage at test points 561 / 594 mV (Controller unit Polytron SE Ex)
Enclosure protection acc. to EN 60 529: IP 66
Device description acc. to 94/9/EG: Dräger Safety, D-23560 Lübeck, Germany
Polytron SE Ex HT M DD
year of construction by serial number
1)
1. DrägerSensor HT M DD: Dräger Safety, D-23560 Lübeck, Germany
DrägerSensor Ex HT M
II 2G Ex d IIC T6/T5/T4/T3
II 2D Ex tD A21 IP 6x T130/T195°C
DEMKO 09 ATEX 0924202 X
CE 0158, year of construction by serial number
1)
2. Enclosure (junction box): Flameproof Electrical Enclosures Ltd., Oldbury, England
Typ Range 2000
II 2G Ex e II T3
II 2D Ex tD A21 IP 66 T200°C
SIRA 06 ATEX 3153
CE 0518, year of construction
3. Cable gland: Peppers Cable Glands Ltd., Surrey GU15 3BT, UK
Typ A3LF
II 2G
Ex e II
II 2D tD A21 IP68
SIRA 01
ATEX 1272X
Environmental Conditions
Operation: Temperature ranges see “Ambient Temperature and
Temperature Classes” on page 27.
800 to 1100 hPa,
5 to 95 % rel. humidity, non-condensing
Storage (also for replacement sensors) -40 to +65 °C
700 to 1300 hPa
10 to 90 % rel. humidity, non-condensing
storage time unlimited
1) Year of construction is coded by the third capital letter of the serial number on
the type plate: Z = 2008, A = 2009, B = 2010, C = 2011, D = 2012, E = 2013, etc.
Example: Serial number ARBH-0054, the 3rd capital letter is B, so the year of construction is 2010.