T6615 CO2 Module

T6615 CO2 Module

Compact CO2 Module Designed to Integrate Into Existing Controls and Equipment

The Telaire T6615 dual-channel CO2 Module is designed to meet the volume, cost, and delivery expectations of Original Equipment Manufacturers (OEMs). The T6615 is a dual channel sensor. The two channels can be described as a CO2 channel that measures gas concentration and a reference channel that measures the sensor signal intensity.

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Features

  • An affordable gas sensing solution for OEMs.
  • A reliable sensor design based on 15 years of engineering and manufacturing expertise.
  • Flexible CO2 sensor platform designed to interact with other microprocessor devices.
  • Dual-channel optical system and three-point calibration process for enhanced stability, accuracy and reliability.
  • Designed for applications where ABC Logic cannot be used.

Applications

When used in a building monitoring system, the T6615 dual sensor module allows building owners and managers to quickly,easily and efficiently monitor the building air quality to stay within regulation.

Specifications

Method Method Dual-channel Non Dispersive Infrared (NDIR), gold plated optics, diffusion or flow through sampling.
Measurement Range 0 to 2000 ppm
0 to 5000 ppm
0 to 10,000 ppm
0 to 50,000 ppm
Dimensions 2.25 in X 1.365 in X 0.60 in
(57.15 mm X 34.67 mm X 15.24 mm)
Accuracy* 75 ppm or 10% of reading (whichever is greater)
Temperature Dependence 0.2% FS per °C
Stability over Life of Sensor (10 Years) < 5% of FS or <10% reading annual
Pressure Dependence 0.135% of reading per mm Hg
Response Time < 2 minutes for 90% step change typical
Warm Up Time
  • < 2 minutes (operational)
  • 10 minutes (maximum accuracy)
Operating Conditions 32°F to 122°F (0°C to 50°C)
0 to 95% RH, non condensing
Storage Conditions -40°F to 158°F (-40°C to 60°C)
(Non Condensating)
T6615-dig1

Output

Digital UART @ 19200 Baud (Please call for detailed product specifications).
Analog 0 to 4 VDC
Power Supply Requirements 5 VDC regulated (±5%)
Power Consumption
  • 0.90 watts peak
  • 0.165 watts average
Interface Connections Designed for 12 pin male header with 0.1 in (2.54 mm) spacing. Header not included.
Flow Rates (Via Flow Ports) Flow through version: 50 cc/min maximum
Diffusion version: 80 - 120 cc/min
Warranty Terms 12 months
* Handling and OEM assembly may affect factory calibration.

Sensor Accuracy and Field Calibration

The T6615 is a dual channel sensor. The two channels can be described as a CO2 channel that measures gas concentration and a reference channel that measures the sensor signal intensity. The T6615 performs periodic self-calibrations using the reference channel. The self calibrations are approximately every 24 hours but can also be initiated by sending a command (see communication protocol). Self calibrations should not be performed during the warm-up period. During the self calibration the sensor PPM reading is frozen, it will not react to changing CO2. The calibration time is adjustable but nominally two minutes.
Over time the minor electrical and mechanical changes can affect the sensor accuracy. With the exception of operation in harsh environments the rate of signal change is a decaying function, thus the longer the sensor operates the more stable it will become. The reference channel will correct for these changes over time. We recommend periodic gas calibration depending on the application accuracy requirements. While the reference channel corrects for changes over time, a field calibration using nitrogen gas will immediately restore the highest level of accuracy.

Pin Designations

T6615-dig2

 
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