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FAQs - Frequently Asked Questions
FAQs - Frequently Asked Questions
- Regular price
- $796.00

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Series CDTV Carbon Dioxide/Volatile Organic Compound Transmitter
Description: The Series CDTV Carbon Dioxide/Volatile Organic Compound (VOC) Transmitter is designed to optimize energy efficiency in buildings by adjusting conditioned air based on space occupancy. Featuring combination VOC and CO2 outputs, this transmitter offers significant cost savings by streamlining labor and material requirements. Equipped with a single-beam dual-wavelength NDIR CO2 sensor, the unit is suitable for continuous operation in spaces occupied 24 hours a day. VOC output is correlated to CO2 measurements, enabling the detection of fumes that may require ventilation during periods of lower occupancy. Utilizing ASHRE’s occupancy-based VRP Algorithm, the CDTV facilitates demand control ventilation, odor control, and efficient HVAC operation in hospitals, schools, commercial buildings, and spaces with extended occupancy.
Specifications:
- CO2 Range: 0 to 2000 or 0 to 5000 ppm (depending on model); VOC Range: 0 to 2000 ppm CO2 equivalent.
- CO2 Accuracy: ±40 ppm +3% of reading.
- Temperature Dependence: ±8 ppm / °C at 1100 ppm.
- CO2 Non-Linearity: 16 ppm.
- CO2 Pressure Dependence: 0.13% of reading per mm of Hg.
- CO2 Response Time: 2 minutes for 99% step change; VOC Response Time: 5 minutes.
- Temperature Limits: 32 to 122°F (0 to 50°C).
- Power Requirements: 16 to 35 VDC / 19 to 28 VAC.
- Power Consumption: Average: 2 watts; Peak: 3.75 watts.
- CO2 Sensor: Single-beam, dual-wavelength NDIR; VOC Sensor: MEMS metal oxide semiconductor.
- Output: Current: 0 to 20 mA, 4 to 20 mA, 0 to 10 mA, or 2 to 10 mA (depending on selection jumper, max 500 Ω); Voltage: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, or 1 to 5 VDC (depending on selection jumper, min 500 Ω); Relay: SPST NO 2A @ 30 VDC.
- Weight: 5.6 oz (158.8 g).
- Enclosure Rating: Duct mount: NEMA 4X (IP66) for housing only; Wall mount: IP20.
- Agency Approvals: CE.
The Series CDTV Carbon Dioxide/Volatile Organic Compound Transmitter offers efficient and cost-effective management of indoor air quality, making it an ideal solution for various building environments. Its comprehensive features and accurate sensing capabilities ensure optimal ventilation and energy savings while maintaining occupant comfort and safety.
Part Numbers:
CDTV-2D404-RLY Duct CO2 2000ppm/ VOC / No Temp Universal output for CO2 CO2/VOC Relay
CDTV-2D4A4-RLY Duct CO2 2000ppm/ VOC / Temp 10k Type III Universal output for CO2 and VOC CO2/VOC Relay
CDTV-2D4B4-RLY Duct CO2 2000ppm/ VOC / Temp 10k Type II Universal output for CO2 and VOC CO2/VOC Relay
CDTV-2D4C4-RLY Duct CO2 2000ppm/ VOC / Temp 3k Universal output for CO2 and VOC CO2/VOC Relay
CDTV-2D4D4-RLY Duct CO2 2000ppm/ VOC / Temp 100 Ohm RTD Universal output for CO2 and VOC CO2/VOC Relay
CDTV-2D4E4-RLY Duct CO2 2000ppm/ VOC / Temp 1kOhm RTD Universal output for CO2 and VOC CO2/VOC Relay
CDTV-2D4F4-RLY Duct CO2 2000ppm/ VOC / Temp 20k Universal output for CO and VOC2 CO2/VOC Relay
Please refer to the datasheet to check models capabilities.
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