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Model TR9290 Family CO₂ Transmitter

The TR9290 family of sensors is used to measure indoor air carbon dioxide concentration. Option –L displays the measured CO2 value in ppm (parts per million) on the LCD. The units are designed for connecting to Direct Digital Control (DDC) with 0-10V signal inputs.

Features:

• Measures: 0-2,000 ppm CO₂, Factory adjustable to 10,000 ppm
• Accuracy: ± 30 ppm + 3% of reading
• Power: 24 VAC
• CO₂ output: 0-10 V, 0-5 V, 4-20mA
• Maintenance free for 15 years or more
• Also available as a LonMark Certified Product for TR9292, TR9293 and TR9294 models

Applications:

• Commercial buildings
• Schools & universities
• Retail
• Theaters, auditoriums, gyms, churches
• Hospitality venues
  

Key Features:

• Built in self calibration feature results in zero maintenance over sensor rated life (15 years)
• Background calibration feature also automatically considers outside concentrations without an outside sensor (see "Background On Sensor Self Calibration" to left)
• Utilizes patented gold plated optical sensing element with 4.7 inch extended measurement path length for maximum stability & resolution. (see "Length Matters" to left)
• ISO-9001 manufactured for quality
• Now also available with LonWorks® communication capability as a LonMark® Certified product.
  

Related Products:

• The PT9250 Handheld CO₂ monitor can be used in commissioning CO₂ sensors and in characterizing ventilation rates. It can also be used to estimate potential energy savings in CO₂ retrofits (see "Assessing Buildings for CO₂ Retrofits" to left).