0 to 2000 ppmv CO2 and temperature transmitter

0 to 2000 ppm_v CO₂ and temperature transmitter

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CF5

0 to 2000 ppmv range
NDIR Sensor
low maintenance

Carbon dioxide measurement

Carbon dioxide (CO₂) exists in the atmosphere normally at around 400ppm_v (0.04%). However, when in confined space without effective ventilation, CO₂ can rise to dangerous levels. The initial response of humans when CO₂ levels begin to rise is to lose concentration and to feel tired. Instances where CO₂ can rise to quite high level e.g. beer cellars and areas around CO₂ cylinders (including soft drinks machines) are key areas that should be monitored for CO₂ leaks.

The CF5 is available in two configurations. The CF5-W is designed for wall mounting in rooms or areas that require CO₂ monitoring. The CF5-D is designed for insertion into a ventilation duct or vent. Both units provide a current or voltage output and have an optional display of the CO₂ measured value.

With a range of 0 to 2000 ppm_v, the CF5 alerts personnel to high CO₂ levels. The use of a non-dispersive infra-red sensor (NDIR) offers high precision and low maintenance with a sensor life expected to be in excess of 15 years. The automatic baseline correction means that no further calibration is required if the systems are installed in indoor applications.

Guidelines

CO₂ Level	Comment
350 to 450 ppm_v	Normal atmospheric air (outside)
400 to 1,200 ppm_v	Normal room air (ventilated)
> 1,000 ppm_v	Fatigue and loss of concentration
5,000 ppm_v (0.5%)	Maximum permissible level at the workplace during an 8 hour workday
38,000 ppm_v (3.8%)	Exhaled air (direct exhalation)
>100,000 ppm_v (10%)	Nausea, vomiting, loss of consciousness and death

GENERAL
Measurement	CO₂ and temperature
Measurement principle	Infrared (NDIR) with automatic calibration
CO₂ range	0 to 2000 ppmv
Accuracy	± 30 ppm_v
Temperature range	0 to 50 °C / 30 to 150 °F
Configuration
CF5-W	Wall mounting, installed in environment to be monitored
CF5-W-Disp	As CF5-W with display (LCD)
CF5-D	Duct mounting, for insertion into vents and ducts
CF5-D-Disp	As CF5-D with Display (LCD)
Expected lifetime	>15 years*
Certification
European	CE
MECHANICAL
	CF5-W	CF5-D
Dimension	120 x 82 x 30mm	142 x 84 x 46mm Probe: 245 x 22 x 15mm
Enclosure protection	IP30
ELECTRICAL
Power	16 to 29 VDC/AC
Outputs
Output 1 (CO₂)	0/2 to 10 VDC or 0/4 to 20 mA
Output 2 (temperature)	0/2 to 10 VDC or 0/4 to 20 mA
Communications	MODBUS
* Application dependent
All specifications subject to change