CD-310-U00-00U Johnson Controls Room Carbon Dioxide, Humidity, and Temperature Transmitters

CD-310-U00-00U Datasheet

Overview

The Johnson Controls CD-310-U00-00U is a room carbon dioxide (CO2), relative humidity (RH), and temperature transmitter designed for environmental monitoring and control in commercial HVAC systems. This wall-mounted device uses a non-dispersive infrared (NDIR) sensor for CO2, a precision thermistor for temperature, and a thermoset polymer-based capacitance sensor for humidity. It provides three separate analog outputs to a Building Automation System (BAS) to ensure optimal indoor air quality and energy efficiency through demand-controlled ventilation.

Features

• Triple Sensing: Measures CO2 levels, relative humidity, and ambient temperature in a single low-profile enclosure.
• Advanced CO2 Sensing: Utilizes dual-channel optics and long-term adjustment signal processing technology to monitor CO2 from 0 ppm to 10,000 ppm.
• Self-Calibration: Includes a self-calibration feature to correct sensor drift in typical occupancy environments.
• Analog Outputs: Provides linear 0 VDC to 5 VDC or 0 VDC to 10 VDC field-selectable signals for all three measurements.
• Ease of Installation: Features a backplate with multiple mounting hole configurations for single-gang electrical boxes or direct wall mounting.
• Durable Design: Housed in an attractive white ABS/PC enclosure with a clean, modern look suitable for office and commercial environments.

Specifications

• Power Supply: 20 VDC/VAC to 28 VDC/VAC, non-isolated half-wave rectified.
• CO2 Range: 0 ppm to 2000 ppm (default), adjustable up to 10,000 ppm.
• CO2 Accuracy: ±30 ppm + 3% of measured value.
• Humidity Range: 0% RH to 100% RH, noncondensing.
• Humidity Accuracy: ±2% RH.
• Temperature Range: 32°F to 122°F (0°C to 50°C), field-selectable.
• Temperature Accuracy: ±0.36°F at 32°F to 122°F.
• Output Signals: Three 0 VDC to 5 VDC or 0 VDC to 10 VDC signals.
• Dimensions: 4.7 in. x 3.3 in. x 1.15 in. (119 mm x 84 mm x 29 mm).
• Enclosure Rating: IP30 (NEMA 1).

Applications

The CD-310-U00-00U is ideal for use in various commercial and institutional settings, including:

• Commercial office buildings for demand-controlled ventilation (DCV) to reduce energy costs.
• Schools and educational facilities to maintain high indoor air quality for student productivity.
• Healthcare environments and laboratories where precise environmental monitoring is critical.
• Manufacturing facilities and warehouses to ensure employee safety and comfort.
• Integration with Building Automation Systems (BAS) via analog inputs for comprehensive facility management.