EsiWelma Sensigas URD20SW Quick Start Manual

Use

Operation

Ordering

Technical
specifications
EsiWelma Srl
24/11/2011
Carbon Dioxide
(CO ) gas detectors
2
IP30 Protection Rating
The URD20SW detectors can be used to measure the concentration of Carbon
Dioxide and to control transmitters or actuating devices where there are abnormal
concentrations well below the gas hazard threshold.
The URD20SW detectors can also be used to monitor Carbon Dioxide as an indication
of the quality of the air in hotels, offices, exhibition centres, shops, restaurants,
schools, conference rooms, cinemas, theatres and ventilation systems in general.
The URD20SW detectors are designed to interface with the UCE1 and UCE4 control
units and, more generally, with any 4...20mA or 0...10V (in addition 0...20mA or
2...10Vdc) control unit or data acquisition systems.
To order, simply state the part number as follows: URD20SW
Type of sensor
Detectable Gas
Power supply
Max power consumption
Measuring range
Measuring precision (@25°C)
Measuring stability
Measuring linearity
Warm-up time
Stabilization time
Response time
Average operational life of Sensor
(in air)
Analog output
Max detectable area
Ambient Temperature (°C)
Operating
-
Storage
-
Ambient humidity (%RH)
- Operating
Storage
-
Protection Rating
Enclosure
Dimensions And Weight
Options & Accessories
Gas calibration Kit TUL40..
EC Conformity
EMC Directives / Standards
LVD Directives / Standards
URD20SW_en - rev. 1
Gas detection systems for industrial environments
URD20SW
NDIR (non-dispersive infrared)
)
Carbon dioxide (CO
2
24Vac (50/60Hz±10%), 24Vdc
1.6W
0÷20.000ppm (other ranges on request)
± 100ppm + 3% of the readout
2% on full scale, for the lifetime of the sensor
1% of full scale
< 2m
< 2m, 10m for maximum accuracy
< 2m (T90)
15 years from installation
4...20mA or 0...10Vdc (0...20mA or 2...10Vdc)
2
about 100 m (approximate; for larger areas
install several devices at suitable distances
from each other)
0...50°C
-40...70°C
0...95% RH (non condensing)
0...95% RH (non condensing)
IP30
ABS/PC UL94-V0 flame retardant
See dedicated section
See installation and commissioning chapter
EMC 2004/108/EC
EN 61000-6-1 + EN 61000-6-3
Not applicable
CO
2
gas detectors – URD20SW
1/4