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Brand: Dwyer InstrumentsSKU: CDT-2N40-LCD

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~~$656.80~~

$284.61

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CDT-2N40-LCD | Carbon Dioxide | Wall Mount | universal current/voltage output | North American Housing | LCD Display. | Dwyer Instruments

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Documents and manuals

Dwyer Instruments CDT-2N40-LCD Documents

AQ-CDT Duct Mount Manual (Pre April 2022)AQ-CDT Duct Mount Manual (Post April 2022)AQ-CDT-N Wall Mount Manual (Pre April 2022)AQ-CDT-N Wall Mount Manual (Post April 2022)Series CDT Catalog Page CDT More Info

Overview

Details for CDT-2N40-LCD

Accurately Monitor CO2 and Temperature: CDT-2N40-LCD CO2 and Temperature Transmitter by Dwyer InstrumentsThe CDT-2N40-LCD CO2 and Temperature Transmitter by Dwyer Instruments provides real-time monitoring of carbon dioxide (CO2) levels and temperature, crucial parameters for maintaining optimal indoor air quality in commercial, industrial, and healthcare settings. With its advanced NDIR (non-dispersive infrared) CO2 sensing technology, this transmitter delivers precise and reliable CO2 measurements up to 2000 ppm. Additionally, it features an accurate temperature sensor that measures temperatures ranging from -40 to 140Â°F (-40 to 60Â°C).Compact and Versatile:The CDT-2N40-LCD transmitter has a compact and wall-mountable design, allowing for easy installation and space optimization. Its clear LCD display provides real-time readout of both CO2 levels and temperature, making it convenient to monitor indoor air quality conditions at a glance. Customizable Alarm Settings: To ensure timely notifications, the CDT-2N40-LCD transmitter can be programmed with customizable alarm set points. When CO2 levels or temperature exceed the preset thresholds, the transmitter triggers audible and visual alarms, alerting personnel to take appropriate action, such as increasing ventilation or adjusting HVAC systems.RS-485 Communication: For integration into building automation systems (BAS), the transmitter supports RS-485 communication, enabling remote monitoring and control. This allows for centralized data collection and analysis, providing insights into indoor air quality trends and optimizing energy efficiency.Meet Regulatory Standards: The CDT-2N40-LCD CO2 and Temperature Transmitter meets various industry standards, including ASHRAE 189.1 and EN 13779, ensuring compliance with indoor air quality regulations and guidelines.Shop our HVAC supply store today for the best prices and fast shipping on the CDT-2N40-LCD CO2 and Temperature Transmitter, an essential tool for maintaining healthy and comfortable indoor environments.

SERIES CDT CARBON DIOXIDE/TEMPERATURE TRANSMITTER

NDIR CO2 Sensor, Universal Outputs, Optional Relay

The Series CDT Carbon Dioxide and Temperature Transmitters accurately monitorthe CO2 concentration and temperature in indoor environments to help achieve energysavings. In order to achieve a higher level of accuracy, the Series CDT includesbarometric pressure adjustment. The CO 2 universal output allows users to select thetransmitter output to be 4-20 mA, 0-5 VDC, or 0-10 VDC to work with virtually anybuilding management controller.
For applications that require visual indication, the wall mount configurations of theSeries CDT can be ordered with an integral LCD display. To prevent tampering, theaction of the buttons can be locked out using an internal dip switch selection.

*For buildings occupied 24 hours per day, it is recommended that calibration be verified every 6 to 12 months depending on application.

For models with resistive thermistors or RTD outputs, please click here for temperature to resistance lookup tables.

Product Applications

Demand control ventilation in schools, office buildings, hospitals, and other indoorenvironments
LEED® certification

Minimize inventory and save time by combining CO 2 and temperaturemeasurements into one transmitter
Requires minimal maintenance with Automatic Baseline Correction (ABC) to accountfor sensor drif
Reduce operation costs using a low energy, reliable, and repeatable CO 2 sensor
Simplify installation with backplate electrical connection

Specifications

Series: CDT CARBON DIOXIDE/TEMPERATURE TRANSMITTER
Sensor: NDIR; 15 year life expectancy.
Range: CO2: 0 to 2000 or 0 to 5000 ppm (depending on model); Temperature: 32 to 122°F (0 to 50°C).
Accuracy*: CO2: ±40 PPM + 3% of reading (2000 PPM CO2); ± 50 PPM + 5% of reading (5000 PPM CO2); Temperature: ±1°C @ 25°C.
Response Time: 2 min for 99% step change.
Temperature Limits: 32 to 122°F (0 to 50°C).
Humidity Limits: 0 to 85% (non-condensing).
Power Requirements: 16 to 35 VDC or 19 to 28 VAC.
Power Consumption: Average: 2 w; Peak: 3.75 w.
Output: Current: 4-20 mA (max. 500 Ω); Voltage: 0-5 VDC or 0-10 VDC (min. 500Ω); Relay: SPST NO rated 2A @ 30 VDC; RTD or thermistor per r-t curves on page4 (depending on model).Relay: SPST NO rated 2 A @ 30 VDC; RTD or thermistor per r-t curves on page 4 in catalog (depending on model).
Compliance: CE.