Dräger Polytron Ex, Инструкция по эксплуатации, Страница: 24 / 39

Technical Data
Page 24 of 40
9023744 - 3rd edition - October 2005
Technical Data
Transmitter Polytron Ex and Ex R
Measuring range
1)
1)
When using the Ex-sensor LC M resp. sensing head SE Ex LC M the reading has to be divided by ten.
0 to 99 %LEL (LEL: Lower Explosive Limit)
Resolution of the digital display
1)
1 % LEL, and 0.1 % LEL in calibration mode
Measurement current 4 mA to 20 mA
Operating voltage 10 V to 30 V
Power consumption incl. Ex-sensor
≤
2.5 W
Cable gland for cable diameters 7 to 12 mm
Cable cross section per core 0.5 to 1.5 mm
2
Dimensions and weight
Transmitter Polytron Ex without Ex-sensor approx. 125 x 140 x 100 mm W x H x D, approx. 1.5 kg
(without cable gland)
Transmitter Polytron Ex R approx. 125 x 140 x 100 mm W x H x D, approx. 1.5 kg
(without cable gland)
Environmental conditions
during operation –40
o
C to 65
o
C
2)
700 to 1300 hPa (in hazardous areas: 800 to 1100 hPa)
10 to 95 % r.h.
2)
The readability of the LC-display might be affected at temperatures below –20
o
C.
during storage –40
o
C to 75
o
C
700 to 1300 hPa
10 to 95 % r.h.
CE marking Electromagnetic Compatibility (directive 89/336/EEC), maximal fluctua-
tion
≤
3% LEL (methane/air)
Degree of protection acc. to EN 50 029 IP 63
Device description acc. to Directive 94/9/EC Dräger Safety, D-23560 Lübeck, Germany
Type Polytron Ex, Ex R
Transmitter Polytron Ex II 2G EEx me [ib] IIC T4 –40
o
C
≤
T
a
≤
65
o
C
Transmitter Polytron Ex R II 2G EEx me [ib] IIB T4 –40
o
C
≤
T
a
≤
65
o
C
BVS 03 ATEX E 160 X
C
0158
, year of manufacturing by serial number
3)
3)
The year of manufacturing is coded by the third capital letter of the serial number on the type plate:
S = 2002, T = 2003, U = 2004, W = 2005, X = 2006, Y = 2007, Z = 2008, A = 2009, B = 2010, C = 2011, etc.
Example:
Serial number: ARSH-0054, the 3rd capital letter is S, so the year of manufacturing is 2002.