Dräger Polytron 2 XP Tox, Руководство по эксплуатации, Страница: 4 / 12

53
6 Technical Information
6.1 Approvals
UL, CSA ......................................................................................................... Class I, Div 1, Groups B, C, D
ATEX ...................................................................................... II 2G EEx d [ia] IIC T6 (Ta = -40 to +65°C)
II 3D EEx d [ia] IIC T85 (Ta = -40 to +65°C): IP66
CE marking .................................................... Electromagnetic Compatibility (Directive 89/336/EEC)
6.2 Signal Transmission to Central Control Unit
Analog Transmission by 3-core shielded cable
– Measurement current ........................................................................................................ 4 mA to 20 mA
– Measuring range not reached ........................................................................................ 3.8 mA to 4 mA
– Measuring range exceeded ....................................................................................... 20 mA to 20.5 mA
– Transmitter fault ............................................................................................................................. < 3.2 mA
– Maintenance signal ...................................................... 4 mA ± 1 mA, 1 Hz modulation, configurable
or steady signal: user configurable
Option Which Can Be Switched On or Off
– Warning ............................................................................ Fault signal every 10 seconds for 1 second
measuring signal in between, configurable
Digital
– HART-compatible .................................................................... Transmission by 3-core shielded cable
– RS 485 ............................................................................. Transmission by twisted-pair shielded cable
6.3 Voltage of Power Supply
Operating Voltage ................................................................................................................... 10 to 32 V DC
In-rush Current............................................................................................................... 750 mA for 10
µ
sec
Operating Current ......................................................................................................... 100 mA @ 24 V DC
Unit has polarity reversal protection.
Connector accepts 16 to 22 gauge wire AWG (0.5 to 1.5 mm
2
).
6.4 Physical Specifications
Enclosure ......................................................................................................................... NEMA 4 + 7 (IP 66)
Conduit Entry .............................................................................................. 3/4” NPT female conduit entry
Size
......................................................... L x W x D, approx. 10.75” x 5” x 5”; (275 x 130 x 130mm)
Weight ....................................................................................................................... approx. 5.5 lb; (2.5 kg)
Technical Information
Approvals
Signal Transmission to Central Control Unit
Voltage of Power Supply
Physical Specifications