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Carbon Dioxide Transmitter

CDT2000 series products are economical and versatile devices that measure CO2 concentration and temperature (T). These devices are available for duct or wall mounting. CDT2000 is the first device measuring CO2 with large touchscreen display enabling easy configuration and adjustment. CDT2000 Duct is a cost-effective solution for measuring the total concentration of CO2 in duct systems
Indoor Air Quality Monitor

Indoor Air Quality Monitor

Rs 14,230  / PieceGet Best Price

Product Brochure

BrandHK Instruments Oy
Output Signal 20-10 V (linear to Temp) or optional 4-20 mA (linear to Temp)
Optional Output Signal 30-10 V (linear to rH) or optional 4-20 mA (linear to rH)
Operating Temperature0 To +50 Degree C
Model Name/NumberSiro-CO2
Protection StandardIP20
CalibrationAutomatic self-calibration,ABC Logic
Supply Voltage24 VDC/VAC +-10 %
Output Signal 10-10 V (linear to CO2) or optional 4-20 mA (linear to CO2)
Optional Output Signal 40-10 V (linear to VOC) or optional 4-20 mA (linear to VOC)
Measuring UnitsCO2 ppm,Degree C
Optional Measuring Units% rH,VOC ppm
SiroMultifunctional indoor air quality transmitters for building automation systems

Siro is an indoor air quality transmitter with a modern design. The transmitter is available with several optional air quality sensors. The modular device can be equipped with CO2 concentration and VOC (Volatile Organic Compounds) measurements or alternatively PM (Particulate Matter) measurement, and in addition, temperature and humidity measurements. It offers easy installation and adjustment, several different model options and various output signals that are configurable separately for each measurement parameter.

 

The Siro series devices are available with a user interface that includes an LCD
display and buttons making the configuration of the device quick and easy. An external configuration tool is available for devices without the user interface. Siro utilizes the industry standard NDIR measurement principle with self-calibrating ABC logicTM for CO2 measurement.


 

Siro series devices include:

  • Several options for indoor air quality measurements (CO2, VOC, PM, rH, T).
  • Field configurable outputs for selected measurements.
  • Proportional output options including voltage (0–10 V, 0–5 V, 2–10 V) and optional current (4–20 mA).
  • Offset feature enabling field calibration for each measurement parameter (CO2, VOC, PM, rH, T).
  • Optional LCD-display and buttons.
Measuring elements:CO2: Non-dispersive infrared (NDIR)
VOC: Complementary Metal Oxide
Semiconductor (CMOS)
PM: Laser-based light scattering particle sensing
Temperature: Integrated to CMOS
Relative humidity: Thermoset polymer capacitive sensing element
Measuring units:CO2: ppm
Relative humidity: % rH
Temperature: °C
VOC CO2eq: ppm
TVOC: ppm, μg/m3
PM1/2.5/10: μg/m3
Calibration (CO2):Automatic self-calibration, ABC LogicTM
Supply voltage:24 VDC/VAC ±10 %
Output signal 1–4:0...10 V (optional 2...10 V / 0...5 V, display or configuration tool required)
Optional 4...20 mA
Linear to selected measurement (CO2, VOC, PM, rH or Temp)
Operating temperature:0...50 °C
Protection standard:IP20


Additional Information:

  • Item Code: Siro-CO2
  • Delivery Time: 3-4 working weeks
  • Packaging Details: Box packing

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  • Carbon Dioxide Transmitter CDT 2000
  • Carbon Dioxide Transmitter CDT 2000
  • Carbon Dioxide Transmitter CDT 2000
Carbon Dioxide Transmitter CDT 2000

Carbon Dioxide Transmitter CDT 2000

Rs 10,000  / PieceGet Best Price

Product Brochure

BrandHK Instruments Oy
Model Name/NumberCDT 2000
Protection StandardIP20
Measuring Unitsppm, Degree C, % rH
CalibrationAutomatic self-calibration, ABC LogicTM or continuous comparison (DC)
Supply Voltage24 VDC/VAC+-10 %
Output Signal 20/2- 10 V or 4-20 mA (linear to rH)
Optional Output Signal 30/2- 10 V or 4-20 mA (linear to Temp)
Operating Temperature0 To +50 Degree C
Output Signal 10/2- 10 V or 4-20 mA (linear to CO2)
Optional Relay OutputPotential free SPDT 250 VAC, 6 A / 30 VDC, 6 A with adjustable switching point and hysteresis
CDT series air quality transmitters are engineered for building automation systems in the HVAC/R industry. The CDT series measures carbon dioxide (CO2) utilizing the industry standard NDIR measurement principle, and temperature (T). Optional relative humidity (rH) measurement is also available in the same device. CDT series devices are available with large touchscreen display making configuration of the device quick and easy.

The CDT2000 series transmitters calibrate themselves automatically using ABC logicTM. The ABC logicTM requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO2 concentration drops to the outside level. CDT2000-DC is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDT2000-DC is also suitable for buildings that are continuously occupied.

CDT series devices include:
• Separate field configurable output for each measurement parameter (CO2, rH, T)
• Proportional output options including: voltage (0–10 V, 2–10 V) and current (4–20 mA)
• Offset feature enabling field calibration for each measurement parameter (CO2, rH, T)CDT2000 series device options offer:
• 2” x 3” touchscreen display
• Field configurable relay for any of the three parameters
• Modbus configuration

Applications:
  • CDT series devices are commonly used to monitor:
  • CO2 and humidity levels in offices, public spaces, meeting rooms and classrooms
  • CO2 levels of return air in ventilation systems
  • Incoming air and return air humidity levels in ventilation system
  • Humidity in various industrial applications
  • Temperatures in HVAC/R environment
  • CDT2000-DC series devices can also be used in applicationswhere there is a constant source of carbon dioxide present (forexample hospitals and greenhouses)

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Carbon Dioxide Transmitter CDT-MOD-2000

Carbon Dioxide Transmitter CDT-MOD-2000

Rs 12,000  / PieceGet Best Price

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Model Name/NumberCDT-MOD-2000
BrandHK Instruments Oy
Product Weight150 g
Storage temperature-20 To +70 Degree
MaterialABS
Dimensions99 X 90 X 32 mm
Supply Voltage24 VAC/VDC, +-10 %
Measuring Unitsppm, Degree C and % rH
Protection StandardIP20
The CDT-MOD-2000 series air quality transmitters are engineered for building automation systems in the HVAC/R industry. The CDTMOD-2000 series measures carbon dioxide (CO2), utilizing the industry standard NDIR measurement principle, and temperature (T). Optional relative humidity (rH) measurement is also available in the same device. The CDT-MOD-2000 series devices have large touchscreen display making the configuration of the device quick and easy. Configuration is also possible via Modbus network.

The CDT-MOD-2000 series transmitters calibrate themselves automatically using ABCTM logic. The ABCTM logic requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO2 concentration drops to the outside level. CDT-MOD-2000-DC is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDTMOD-2000-DC is also suitable for buildings that are continuously occupied.

CDT-MOD-2000 series devices include:
• Offset feature enabling field calibration for each measurement parameter (CO2, rH, T)
• One analog output for selected measurement: voltage (0/2–10 V) or current (4–20 mA)
• 2” x 3” touchscreen display
• Optional relay output

Application:
CDT-MOD-2000 series devices are commonly used to monitor:
• CO2 and humidity levels in offices, public spaces, meeting rooms and classrooms
• CO2 levels of return air in ventilation systems
• incoming air and return air humidity levels in ventilation system
• humidity in various industrial applications
• temperatures in HVAC/R environment
• CDT-MOD-2000-DC series devices can also be used in applications where there is a constant source of carbon dioxide present (for example hospitals and greenhouses)

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Carbon Dioxide Transmitter CDT 2000 Duct

Carbon Dioxide Transmitter CDT 2000 Duct

Rs 12,500  / PieceGet Best Price

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Model Name/NumberCDT2000 Duct
BrandHK Instruments Oy
Operating Temperature0 To +50 Degree C
Optional Output Signal 44-20 mA (linear to Temp) (A model)
CalibrationAutomatic self-calibration,ABC LogicTM or continuous comparison (DC)
Supply Voltage24 VDC/VAC +-10 %
Output Signal 10/2-5/10 V (linear to CO2)
Output Signal 20/2-5/10 V (linear to Temp)
Optional Output Signal 34-20 mA (linear to CO2) (A model)
Protection StandardIP54
Measuring Unitsppm,Degree C
The CDT2000 Duct series air quality transmitters are engineered for building automation systems in the HVAC/R industry. The CDT2000 Duct series measures carbon dioxide (CO2), utilizing the industry standard NDIR measurement principle, and temperature (T). Illuminated display ensures easy readability also from a distance. The CDT2000 Duct has a screwless lid and an easily adjustable mounting flange that make the installation of the device easy. The CDT2000 Duct series transmitters calibrate themselves automatically using ABCTM logic. The ABCTM logic requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO2 concentration drops to the outside level. CDT2000-DC Duct is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDT2000-DC Duct is also suitable for buildings that are continuously occupied.

CDT2000 Duct series devices include:
  • Separate field configurable output for each measurement parameter (CO2, T)
  • Offset feature enabling field calibration for each measurement parameter (CO2, T)
  • Mounting flange 

CDT2000 Duct series device options offer:

  • Clear backlit display  
  • Modbus configuration
  • 4-20 mA proportional output  

Applications:
  • CDT2000 Duct series devices are commonly used to monitor:
  • CO2 levels of incoming and return air in ventilation system
  • CDT2000-DC Duct series devices can also be used inapplications where there is a constant source of carbon dioxide present (for example hospitals and greenhouses)

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Carbon Dioxide Transmitter, CDT-MOD-2000-Duct

Carbon Dioxide Transmitter, CDT-MOD-2000-Duct

Rs 14,500  / PieceGet Best Price

Product Brochure

BrandHK Instruments Oy
Display TypeDigital
Model Name/NumberCDT-MOD-2000-Duct
Measurement RangeCO2: 400-2000 ppm
MaterialABS
Operating Temperature0 ... 50 C
Supply Voltage24 VAC/VDC +-10 %
Protection StandardIP54
Measuring Unitsppm and Degree C
CO2 transmitters with temperature output for duct that use Modbus serial communication protocol

The CDT-MOD-2000 Duct series air quality transmitters are engineered for building automation systems in the HVAC/R industry. The CDT-MOD-2000 Duct series measures carbon dioxide (CO2), utilizing the industry standard NDIR measurement principle, and temperature (T). Illuminated display ensures easy readability also from a distance. The CDT-MOD-2000 Duct has a screwless lid and an easily adjustable mounting flange that make the installation of the device easy.

The CDT-MOD-2000 Duct series transmitters calibrate themselves automatically using ABCTM logic. The ABCTM logic requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO2 concentration drops to the outside level. CDT-MOD-2000-DC Duct is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDT-MOD-2000-DC Duct is also suitable for buildings that are continuously occupied.

CDT-MOD-2000 Duct series devices include:
 Offset feature enabling field calibration for each measurement parameter (CO2 and T)
 Mounting flange
 Clear backlit display

Application: CDT-MOD-2000 Duct series devices are commonly used to monitor:

 CO2 and temperature levels of incoming and return air in ventilation system
 CDT-MOD-2000-DC Duct series devices can also be used in applications where there is a constant source of carbon dioxide present (for example hospitals and greenhouses)

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