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C.Ex

Humidity and Temperature Sensor with ATEX certificate types KC.Ex / GC.Ex

Transmitter
  • for measuring relative humidity and temperature
  • in air and othes non-aggressive gases
  • for locations with explosive gas atmosphere and inflammable dust 
  • equipment of category 1G, 1/2G and 2D
  • with capacitive Mela® humidity sensing element
  • outputs: 2 x 4 ... 20 mA
C.Ex
C.Ex

General information

Accuracy

    Humidity ± 2 %rh 5...95 %rh at 10 ...40 °C
    Temperature ± 0,2 K at 23 °C


Humidity and temperature sensors with ATEX certificate for use in explosion hazardous areas and locations with inflammable dust. Area of application 1G, 1/2G and 2D. The sensors consist of a robust aluminium die-cast housing (transmitter part) with a mounted sensor part with sintered filter (both made of stainless steel)


Technical data

Output 1: relative humidity
Output range 1 0...100%rh
Output signal 1 4...20 mA
Accuracy (MR 5...95%rh at 10...40 °C) ±2%rh
at T<10 °C; T>40°C 0.1%/K additional
Output 2: temperature
Measuring element (ref. DIN IEC 751) Pt 100 class B
Measuring range 2 -20...+80 °C
Output signal 2 4...20 mA
(special types with special measuring range on demand)
Accuracy at 23°C ±0.2 K
other ranges ±0.3 K
at T<10°C, T>40°C ±0.007 K/K additonal
Others
Storage temperature -40...+80°C
Approved operating temperature range -40...+80°C
Maximum surface temperature of housing 95°C
Sensor operating voltage 13...24V DC (intrinsically safe)
Maximum input voltage Ui 24V DC
Maximum input amperage Ii 100 mA
Maximum input power Pi 780 mW
Maximum inner capacity Ci negligible
Maximum inner inductivity Li negligible
Degree of protection IP 66
electrical equipment in instrument group II with protection provided by housing
Housing material
Sensor part stainless steel
Transmitter part alu-diecast
Cable screwing M16 x 1.5
clamping range 3...7 mm
initial torque
(for recommended cable type) 4.0 Nm
Cable between sensor and transmitter power supply unit, shielded
Recommended type NF14 (Metrofunk)
Maximum power transmission length 200 m
Maximum cable capacity 20nF/100 m
Ends of the power line wire sleeves with
plastic collars
Recommended transmitter power supply units
by Hans Turck GmbH & Co. KG
MK33-11Ex0-Li/24V DC (1-channel)
IM33-22Ex-Hi/24V DC (2-channel)
All data and certificates at www.turck.com
Conformity with European Standards
Explosion protection guideline 94/9/EC
General requirements EN 60079-0:2012
Intrinsic safety „i“ EN 60079-11:2012
Category 1 G electrical apparatus EN 60079-26:2007
Dust protection by enclosure „t“ EN 60079-31:2009
Directive about electromagnetic compatibility 2004/108/EG
General requirements EN 61326-1:2013
Special requirements EN 61326-2-3:2013



Do you have questions on this product?

Your contact person:

Badger Meter Swiss AG
Mittelholzerstrasse 8
CH-3006 Bern