CWVS3XX1 Veris Transmitter

The Veris CWVS3XX1 ROOM CO2 Transmitter

Datasheet

Installation Guide

The CWV Series is a non-dispersive infrared analyzer designed for measuring CO2 concentration in office and living spaces. Its 2000ppm measurement range makes it an ideal solution for meeting ASHRAE and other ventilation control standards. The CWV Series features multiple output options, microprocessor-based digital technology, and a unique self-calibration algorithm which improves long-term stability and accuracy.

APPLICATIONS

• Controlling HVAC in response to occupancy – save energy by providing ventilation only as required
• Improving tenant comfort
• Schools, museums, airports, commercial buildings, etc.
• OEM applications
• Home automation
• Big-box retail
• Restaurants
• C-Stores

Microprocessor design reduces long-term drift and calibration requirements

• Non-dispersive infrared technology (NDIR) repeatable to ±30 ppm ±4.5 % of measured value
• Innovative self-calibration algorithm…easy to maintain
• 5-year calibration interval (recommended)
• Low ambient sensitivity

Demand control ventilation provides reduction in energy costs

• Improve comfort and facilitate compliance with ASHRAE 62.1-2004 standard for air quality
• Helps with green branding initiatives

Product Features

• Dual analog outputs for added user convenience
• LED indication for power and error detection… reduces time spent troubleshooting
• Switchable 0-3/5/10 volt output…increased flexibility
• US & European mounting holes…installation flexibility
• Field calibratable…reduce costly downtime
• 4-20mA and voltage outputs in one unit…greater versatility

Series Specifications

• Input Voltage 20 to 30VDC, 24VAC
• Analog Output #1 4-20mA (clipped & capped) or 0-3VDC/0-5VDC/0-10VDC (jumper selectable)
• Analog Output #2 4-20mA (clipped & capped) or 0-3VDC/0-5VDC/0-10VDC (jumper selectable)
• Sensor Current Draw 200mA Maximum
• Operating Temperature Range 0° to 50°C (32° to 122°F)
• Housing Material High impact ABS plastic

CO2 Transmitter:

• Sensor Type Non-dispersive infrared (NDIR), diffusion sampling
• Measurement Range 0-2000 ppm
• Accuracy ±40 ppm ±8.5% of measured value
• Repeatability ±30 ppm ±4.5% of measured value
• Response Time <60 seconds for 90% step change

Relay Contacts:

• Electromechanical 1A@30VDC, resistive; 30W max.