Casella CEL Indoor air quality monitor - Manual (Page 36)

Sensor Specifications
Operating Time >10 hours with NiCd on full charge
Weight Approx. 1 kg
Analogue Output 0 - 2.5 V
Infra-Red Light Source 980 nm wavelength
12.7 CO Gas Detector
The CO gas detector has been designed to provide continuous pollution
monitoring. The sensor uses electrolytic fuel cells which have a typical life
expectancy of 2 to 3 years, depending on the working conditions (temperature,
humidity, etc.).
The sensor is designed to detect
the specific gas with a minimum
concentration of 0.1 ppm. For
applications where the gas is
anticipated in any appreciable
quantity, this level of detection is
sufficient.
For ambient gas detection at a
distance from the source, a gas
analyser may be required which
has the capability to measure
down to levels of 1 ppb.
The standard detector is housed
within a Polycarbonate Housing
and can be mounted on the hub
support arms with spring clips.
The units must be installed in
non-classified areas.
Sensor
02065
Slide-in
labels
Connection
cable
Clips
Gas Detector
CTX300
Location Gas
CO
Specification
Range 0 - 300 ppm
Accuracy ±1.5%
Response Time T(50) 15 seconds
Operating Humidity Range 10 - 95% RH
Operating Temperature Range -20 to +50 o C
Supply Voltage 15 - 32 V
Atmospheric Pressure ±10%
Life Span 24 to 36 months
Housing Sealed to IP66
When Ozone measurement is required together with CO, a
special connector box will be required to connect the two
sensors into one
channel.
Page 36 of 42
MICROTHERM indoor air quality &
WinIaq Application Software - User Manual