Dwyer Instruments CDT-2N40-LCD Transmitter
The Dwyer CDT-2N40-LCD is a field-selectable Carbon Dioxide Transmitter designed for precise demand controlled ventilation in commercial HVAC systems. Utilizing Non-Dispersive Infrared (NDIR) technology, this wall-mount sensor accurately monitors CO2 concentrations from 0 to 2000 ppm. The single-beam dual-wavelength sensor design enables automatic baseline calibration, effectively compensating for aging components to ensure long-term stability in indoor air quality (IAQ) monitoring applications. This specific model features a high-resolution LCD display for real-time local indication but does not include a dedicated temperature output. The universal output configuration allows the technician to select between 4-20 mA or 0-5/10 Vdc signals via onboard jumpers, providing maximum compatibility with various building automation systems (BAS) and DDC controllers. Its durable housing and terminal block connections facilitate rapid installation and integration for contractors optimizing energy efficiency and outdoor air intake.
Product Features
- NDIR CO2 Sensor: Utilizes a dual-wavelength sensor for superior accuracy and reduced drift compared to single-channel alternatives.
- Field-Selectable Outputs: Supports 4-20 mA, 0-5 Vdc, or 0-10 Vdc analog signals for versatile HVAC control integration.
- LCD Local Interface: Provides immediate visual feedback of CO2 ppm levels for onsite diagnostics and commissioning.
- Universal Power Compatibility: Accepts both 24 VAC and 24 VDC power inputs to accommodate varied electrical layouts.
- NIST Traceability: Designed for high-reliability environments requiring ASHRAE 62.1 compliance for ventilation standards.
Common Questions
How do I calibrate the Dwyer CDT series transmitter?
The unit features digital calibration buttons; however, it is primarily designed for automatic barometric pressure compensation and automatic baseline correction to minimize manual maintenance requirements.
Can the output range be adjusted from the default 2000 ppm?
While the hardware is optimized for 0 to 2000 ppm, professional BA (Building Automation) scaling can be performed at the controller level to match the 4-20 mA or 0-10V signal to the desired parts per million threshold.
Is this unit suitable for duct-mount applications?
This specific CDT-2N40-LCD is a wall-mount configuration. For duct applications, a duct mount CO2 transmitter variant (CDT-D) with a sampling probe should be utilized.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $301.71
-65%$301.71
$105.60Dwyer Instruments CDT-2N40-LCD Transmitter
The Dwyer CDT-2N40-LCD is a field-selectable Carbon Dioxide Transmitter designed for precise demand controlled ventilation in commercial HVAC systems. Utilizing Non-Dispersive Infrared (NDIR) technology, this wall-mount sensor accurately monitors CO2 concentrations from 0 to 2000 ppm. The single-beam dual-wavelength sensor design enables automatic baseline calibration, effectively compensating for aging components to ensure long-term stability in indoor air quality (IAQ) monitoring applications. This specific model features a high-resolution LCD display for real-time local indication but does not include a dedicated temperature output. The universal output configuration allows the technician to select between 4-20 mA or 0-5/10 Vdc signals via onboard jumpers, providing maximum compatibility with various building automation systems (BAS) and DDC controllers. Its durable housing and terminal block connections facilitate rapid installation and integration for contractors optimizing energy efficiency and outdoor air intake.
Product Features
- NDIR CO2 Sensor: Utilizes a dual-wavelength sensor for superior accuracy and reduced drift compared to single-channel alternatives.
- Field-Selectable Outputs: Supports 4-20 mA, 0-5 Vdc, or 0-10 Vdc analog signals for versatile HVAC control integration.
- LCD Local Interface: Provides immediate visual feedback of CO2 ppm levels for onsite diagnostics and commissioning.
- Universal Power Compatibility: Accepts both 24 VAC and 24 VDC power inputs to accommodate varied electrical layouts.
- NIST Traceability: Designed for high-reliability environments requiring ASHRAE 62.1 compliance for ventilation standards.
Common Questions
How do I calibrate the Dwyer CDT series transmitter?
The unit features digital calibration buttons; however, it is primarily designed for automatic barometric pressure compensation and automatic baseline correction to minimize manual maintenance requirements.
Can the output range be adjusted from the default 2000 ppm?
While the hardware is optimized for 0 to 2000 ppm, professional BA (Building Automation) scaling can be performed at the controller level to match the 4-20 mA or 0-10V signal to the desired parts per million threshold.
Is this unit suitable for duct-mount applications?
This specific CDT-2N40-LCD is a wall-mount configuration. For duct applications, a duct mount CO2 transmitter variant (CDT-D) with a sampling probe should be utilized.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Dwyer CDT-2N40-LCD is a field-selectable Carbon Dioxide Transmitter designed for precise demand controlled ventilation in commercial HVAC systems. Utilizing Non-Dispersive Infrared (NDIR) technology, this wall-mount sensor accurately monitors CO2 concentrations from 0 to 2000 ppm. The single-beam dual-wavelength sensor design enables automatic baseline calibration, effectively compensating for aging components to ensure long-term stability in indoor air quality (IAQ) monitoring applications. This specific model features a high-resolution LCD display for real-time local indication but does not include a dedicated temperature output. The universal output configuration allows the technician to select between 4-20 mA or 0-5/10 Vdc signals via onboard jumpers, providing maximum compatibility with various building automation systems (BAS) and DDC controllers. Its durable housing and terminal block connections facilitate rapid installation and integration for contractors optimizing energy efficiency and outdoor air intake.
Product Features
- NDIR CO2 Sensor: Utilizes a dual-wavelength sensor for superior accuracy and reduced drift compared to single-channel alternatives.
- Field-Selectable Outputs: Supports 4-20 mA, 0-5 Vdc, or 0-10 Vdc analog signals for versatile HVAC control integration.
- LCD Local Interface: Provides immediate visual feedback of CO2 ppm levels for onsite diagnostics and commissioning.
- Universal Power Compatibility: Accepts both 24 VAC and 24 VDC power inputs to accommodate varied electrical layouts.
- NIST Traceability: Designed for high-reliability environments requiring ASHRAE 62.1 compliance for ventilation standards.
Common Questions
How do I calibrate the Dwyer CDT series transmitter?
The unit features digital calibration buttons; however, it is primarily designed for automatic barometric pressure compensation and automatic baseline correction to minimize manual maintenance requirements.
Can the output range be adjusted from the default 2000 ppm?
While the hardware is optimized for 0 to 2000 ppm, professional BA (Building Automation) scaling can be performed at the controller level to match the 4-20 mA or 0-10V signal to the desired parts per million threshold.
Is this unit suitable for duct-mount applications?
This specific CDT-2N40-LCD is a wall-mount configuration. For duct applications, a duct mount CO2 transmitter variant (CDT-D) with a sampling probe should be utilized.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
