User Manual

Siemens Building Technologies CM1N1853E / 10.1999
Landis & Staefa Division 3/4
The recalibration service
1)
includes the following:
•
Calibration
2)
with recording of values for humidity (B1) and temperature 0…50 °C (B2)
•
Sensor test, including repair and replacement of wear parts; filter every time, sensor
elements if required.
•
If necessary, readjustment
3)
and repeat calibration
•
Issue and enclosure of a new calibration certificate
•
Shipping and registration (the customer gets the same sensor back)
1) The recalibration service is performed and billed under the designation S/QFA66/C
2) The test candidate is connected to a measurement standard. Any deviations found are recorded but not
corrected. Calibration is performed at three points for humidity and temperature.
3) The test candidate is connected to a measurement standard. Any deviations found are corrected.
Operating voltage (SELV) AC 24 V
±
20 %
Frequency 50/60 Hz
Power consumption
≤
1 VA
Output signals
Humidity (terminal B1)
Voltage DC 0...10 V
0...100 % r. h.;
Current max.
±
1 mA
Temperature (terminal B2)
Voltage DC 0...10 V
0...50 °C;
Current max.
±
1 mA
Temperature (terminal B3)
Voltage DC 0...10 V
−
35...+35 °C;
Current max.
±
1 mA
Permissible cable lengths
Copper cable 0,6 mm dia. 50 m
Copper cable 1,0 mm
2
150 m
Copper cable 1,5 mm
2
300 m
Insulation class III as per EN 60 730
Degree of protection provided by enclosure IP 65 as per EN 60 529
Environmental conditions
Operation as per IEC 721-3-3
Climatic conditions
Temperature
Housing and electronics
−
20...+60 °C
1)
Sensor head
−
40...+80 °C
1)
Humidity 0...100 % r.h.
Transportation as per IEC 721-3-2
Climatic conditions Class 2K3
Temperature
−
25...+70 °C
Humidity <95 % r.h.
Mechanical conditions Class 2M2
Electromagnetic compatibility
Emissions EN 50 081-1
Immunity EN 50 082-1
conformity to EMC directive 89/336/EEC
Service life 10 years
Material
Housing PC
Cable gland Poliamid
Colour
Housing cover RAL 7035 (light grey)
Housing bottom, measuring rod, cable gland RAL 7001 (silver)
Filter cap and device labelling RAL 5014 (pigeon blue)
Weight approx. 0.136 kg
1) Temperature range limitations in the additional specifications are mandatory.
Services provided
Technical data
General device data
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