Secure Payment & Return Policies
Secure Payment & Return Policies
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Secure Transactions: Our partners are industry leaders in payment security, using cutting-edge encryption to protect your data.
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Fraud Protection: Rigorous fraud detection measures are in place to safeguard your transactions.
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Flexible Payment Options: Choose from various trusted payment methods, including credit cards and digital wallets like Google Pay and Paypal.
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Buyer Protection: Benefit from the buyer protection policies of our partners, ensuring refunds and dispute resolution.
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Satisfaction Guarantee: We're confident in our products, and our customer support team is here to assist you if any issues arise.
- Return Policies: Please visit our policies to safely return any products that doesn't match your expectations.
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FAQs - Frequently Asked Questions
FAQs - Frequently Asked Questions
- Regular price
- $610.00
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HDK - Duct CO2 transmitter / controller
Description: HDK transmitters are specifically engineered for detecting and managing carbon dioxide concentration, temperature, and humidity within ventilation ducts. This information is instrumental in implementing demand-based ventilation control strategies. The device features a user-friendly interface where measurement values scroll on the N model display, with the option to lock the desired value for continuous viewing.
The HDK transmitter utilizes an automatic CO2 measurement calibration function (ABC algorithm) to mitigate potential long-term drift, ensuring accurate and reliable readings over time. Additionally, the transmitter can be customized with a HD-R relay (24 Vac, 1 A) for added control capabilities.
Technical Specifications:
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Supply:
- 24 Vac/dc (22…28 V), < 2 VA
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CO2 Measurement:
- Range: 0...2000 ppm
- Range (10K models): 0...10000 ppm
- Accuracy (25 °C):
- Typical ±40 ppm +3 % from reading (automatic calibration)
- Typical ±200 ppm +3 % from reading (automatic calibration) for 10K models
- Long-term Stability/year: < 2 % FS (automatic calibration)
- Time Constant: < 2 min
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Temperature Measurement:
- Range: 0...50 °C
- Accuracy (25 °C): ±0.5 °C
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Humidity Measurement (RH models):
- Range: 0…100 %rH
- Accuracy (25 °C): ±2 %rH
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Outputs:
- 0...10 V / 2...10 V / 0...5 V, < 2 mA
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Measuring Probe:
- Diameter: Ø10 mm x 110 mm; duct insulation < 75 mm
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Cable Entry: M16
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Communication (M models): Modbus RTU
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Operating Conditions:
- Temperature: 0...50 °C
- Humidity: 0...85 %rH (non-condensing)
- Storage Temperature: -20...70 °C
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Wiring Terminals: 1.5 mm², tilted screw terminals
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Housing: IP54, cable entry downwards
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Dimensions (w x h x d): 105 x 104 x 155 mm
Part Numbers:
HDK 10K - Co2 Transmitter Duct 10K Ppm
HDK 10K-N - Co2 Transmitter Duct 10K Ppm +D
HDK 10K-RH - Co2 Transmitter Duct 10K Ppm +Rh
HDK 10K-RH-N - Co2 Transmitter Duct 10K Ppm +Rh+D
HDK 10K-M - Co2 Transmitter Duct 10K Ppm +Mb
HDK 10K-M-N - Co2 Transmitter Duct 10K Ppm +Mb+D
HDK 10K-M-RH - Co2 Transmitter Duct 10K Ppm+Mb+Rh
HDK 10K-M-RH-N - Co2 Transmitter Duct 10K Ppm+Mb+Rh
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