Vulcain 90DM4DTNETCRD50000 Monitor

The Vulcain 90DM4DTNETCRD50000 is an industrial-grade infrared CO2 gas monitor engineered for high-precision duct mount CO2 detection in complex commercial HVAC systems and building automation environments. Utilizing professional dual-wavelength NDIR sensor technology, this unit effectively mitigates drift and compensates for temperature fluctuations to maintain baseline stability over time. Specifically designed for air-handling units, the 90DM4DT series features an airtight, lightweight ABS enclosure that facilitates accurate carbon dioxide sensing within airflow velocities ranging from 500 to 4,000 ft/min. This model is configured with a 0-50,000 ppm (0-5%) detection range and supports Modbus RTU RS-485 networking alongside standard 4-20 mA output for seamless integration into a BMS (Building Management System). Field-serviceable features include a menu-driven calibration process and an optional backlit display for real-time diagnostics. For optimal airflow sampling, install the unit on a straight duct section at least three feet from any elbows or transitions. Reliable 24 VDC power supply input ensures consistent performance for critical indoor air quality monitoring and demand-controlled ventilation (DCV) strategies.

• Advanced NDIR Technology: Employs infrared dual sensing to provide high-accuracy CO2 monitoring with superior long-term stability and minimal maintenance.
• BMS Integration: Ready for modern building protocols with Modbus RTU communication and configurable analog 4-20 mA signaling.
• Precision Duct Sampling: The DT-type housing is engineered specifically for return or supply air ducts, ensuring the sampling tubes capture a representative cross-section of the air stream.
• Robust Environmental Tolerance: Designed to operate reliably in temperatures from -10°C to +50°C and humidity levels up to 95% RH.
• Contractor-Friendly Installation: Lightweight design with a convenient mounting bracket and airtight seals to prevent air bypass in pressurized systems.

What is the recommended airflow velocity for accurate readings?
For peak performance, this duct-mounted monitor should be installed in locations with an airspeed between 500 and 4,000 feet per minute.

Can the output signal be scaled in the field?
Yes, the 4-20 mA and digital outputs are field-configurable via the internal programming menu to align with your specific 50,000 ppm (5%) scaling requirements.

Does this unit require a specific orientation in the duct?
The insertion tubes must be oriented so that the lateral air holes face directly into the airflow (look for the "Flow" indicator on the sampling tube).

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.