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VCP Duct CO2 sensor CDK

The duct CO2 sensor CDK is a maintenance-free, micro- processor-controlled unit designed for duct installation and is used to detect the CO2 content of the air.
Part Number: CDK
*
$405.00 ex GST
[$445.50 inc GST]
Product Files

The duct carbon dioxide (CO2) sensor CDK provides reliable solutions for energy management through Demand Control of Ventilation (DCV) systems in buildings.

The duct CO2 sensor CDK is a maintenance-free, micro- processor-controlled unit designed for duct installation and is used to detect the CO2 content of the air.

The CO2 measuring range is 0-2000 ppm converted to standard signals 0 -10 Vdc for CDK 010 or 4-20 mA for CDK 420.

The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology).

The detection range of the duct CO2 sensor is calibrated for standard applications such as monitoring residential rooms and conference rooms.

Room ventilation on and as-needed basis, improved well-being and customer benefit, increased comfort as well as reduced operating costs through energy conservation are just some of the benefits of employing duct CO2 sensors.

A measuring system based on NDIR (non-dispersive infra-red technology) for CO2 measurement consists of a light source and a receptor.

A certain range of wavelengths of light radiated by the source is damped and absorbed by CO2 molecules in the measured section.

This damping is detected by the receptor.

 

The duct carbon dioxide (CO2) sensor CDK provides reliable solutions for energy management through Demand Control of Ventilation (DCV) systems in buildings.

The duct CO2 sensor CDK is a maintenance-free, micro- processor-controlled unit designed for duct installation and is used to detect the CO2 content of the air.

The CO2 measuring range is 0-2000 ppm converted to standard signals 0 -10 Vdc for CDK 010 or 4-20 mA for CDK 420.

The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology).

The detection range of the duct CO2 sensor is calibrated for standard applications such as monitoring residential rooms and conference rooms.

Room ventilation on and as-needed basis, improved well-being and customer benefit, increased comfort as well as reduced operating costs through energy conservation are just some of the benefits of employing duct CO2 sensors.

A measuring system based on NDIR (non-dispersive infra-red technology) for CO2 measurement consists of a light source and a receptor.

A certain range of wavelengths of light radiated by the source is damped and absorbed by CO2 molecules in the measured section.

This damping is detected by the receptor.

 

Technical data

Voltage supply
24 Vac/dc

Average power consumption
< 3 VA at 24 Vdc

Sensor
optical NDIR sensor
(non-dispersive infra-red technology) with automatic calibration

Measuring range
0-2000 ppm

Output
0-10 Vdc for CDK 010 and 4-20 mA for CDK 420

Measuring Accuracy
± 50 ppm + 2% of measured at 25°C
± 70 ppm plus 5 % of measured value full area

Pressure dependence
± 1,6 % of measured value ⁄ kPa (referred to standard pressure)

Temperature dependence
< 5 ppm ⁄ K (referred to +20 °C)

Long-term stability
± 1 % of final value ⁄ year

Gas exchange
by diffusion

Warm up time
approx. 1 hour

Ambient Temperature
0 to +50 °C

Response time
approx. 1 minute

Electrical connection
0.14 - 1.5 mm2, via screw terminals

Enclosure
plastic, material polyamide,
30 % glass-globe-reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour traffic white (similar to RAL 9016)

Dimensions
72 x 64 x 37.8 mm

Cable gland
M 16 x 1.5; including strain relief, exchangeable

Protective tube material
polyamide (PA6), Ø 20 mm,
NL = 202.5 mm, with torsion protection

Process Connection
via flange made of plastic (included in scope of delivery)

Protection class
III (according to EN 60 730)

Protection type
IP 65 (according to EN 60 529) enclosure only!

Standards
CE conformity,
electromagnetic compatibility according to
EN 61 326, EMC Directive 2004 ⁄ 108 ⁄ EC

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