www.vaisala.com GMW80 Series Carbon Dioxide and Temperature Transmitters for Demand-Controlled Ventilation Features/Benefits ▪ ▪ Cost-efficient, affordable ▪ Superior stability due to 2nd-gen proprietary CARBOCAP® technology ▪ Improved accuracy due to low self-heating of microglow light source ▪ ▪ Easy to install, easy to use ▪ Ideal for demand-controlled ventilation Reliable and maintenance-free operation up to 15 years Versatile – works well in buildings occupied 24/7 The GMW86P and GMW86PT transmitters. The Vaisala CARBOCAP® Carbon Dioxide and Temperature Transmitter Series GMW80 is based on a second-generation technology for improved reliability and stability. The transmitters are designed to fulfill the needs for CO2 measurements in standard demand-controlled ventilation applications. Temperature measurement is always included in the GMW80 series transmitters. The optional temperature set-point potentiometer gives you the flexibility needed for a variety of projects. The CARBOCAP® sensors measure CO2 accurately immediately when powered on. As they have a built-in reference measurement they do not need a lengthy learning phase before the measured values are correct. Proper operation can be verified immediately after snapping on the device cover. Easy Installation Reliable Operation With modern buildings often having hundreds of sensors, the installation time per unit can be a significant cost factor. Returning to the building site to check sensor operation adds further costs. The GMW80 series transmitters are optimized for low maintenance. The second-generation, low-power CARBOCAP® technology enables a longer lifetime and superior stability than ever before. As the power consumption is low, the heat generated by the electronics does not distort the temperature inside the sensor. The internal reference in the CO2 sensor guarantees the best stability and operation even in constantly occupied buildings without frequent readjustments. The GMW80 series transmitters include a number of subtle design features that have been introduced to make installation and commissioning quick and easy. The pull-out tab makes opening the transmitter faster than before, while also doubling as a quality check slip and holder for the anti-tamper screw. The backplate can be twisted onto pre-mounted screws, and the wiring can be done easily on the clearly marked backplate. The electronics can be snapped on later when the building automation system is commissioned. The reliable operation and accurate measurement values of the GMW80 series transmitters contribute to the significant cost savings brought by demand-controlled ventilation. Technical Data GMW86P and GMW86PT Performance Mechanics CARBON DIOXIDE Measurement range Accuracy +20 ... +30 °C +10 ... +20 °C, +30 ... +40 °C +0 ... +10 °C, +40 ... 50 °C Stability in typical HVAC conditions 0 ... 2000 ppm ±(30 ppm +3 % of reading) ±(35 ppm +3.7 % of reading) ±(40 ppm +4.8 % of reading) ±(15 ppm + 2 % of reading) over 5 years 1 min; 10 min for full specification 60s Vaisala CARBOCAP®GM10 Warm-up time Response time (63 %) Carbon dioxide sensor TEMPERATURE Sensor Product lifetime Class F0.15 IEC 60751 >15 years Operating Environment Operating temperature range Operating humidity range 0 ... +50 °C ( +32 ... 122 °F) 0 ... 95 %RH Dewpoint <30 °C (+86 °F) -40 ... +70 °C (-40 ... 158 °F) EN61326-1, Industrial Environment Storage temperature range Electromagnetic compliance IP class Housing material Housing color Output connector IP30 ABS/PC UL-V0 approved White (RAL9003) Screw terminal max. wire size 2mm2 (AWG14) Weight GMW86P GMW86PT 114 g 120 g Inputs and Outputs Supply voltage Max. current consumption 18 ... 35 VDC, 24 VAC ±20 % 50/60 Hz 45 mA at 18 VDC, 100 mA at 24 VAC CO2 Outputs Scale Current loop resistance (4 ... 20mA) Voltage output load resistance Temperature 4 ... 20 mA, 0 ... 10V 0 ... 2000 ppm 0 ... 600 Ω 10KΩ min Pt1000 RTD TEMPERATURE SETPOINT (GMW86PT) 10 KΩ potentiometer Spare Parts and Accessories CO2 module GM10SP80 GMW86P GMW86PT CO2 4 … 20mA/0 … 10V output T Pt1000 RTD CO2 4 … 20mA/0 … 10V output T Pt1000 RTD 85 81.1 25.9 127.3 60.3 25.9 60.3 60.3 85 81.1 127.3 60.3 .2 R2 .2 R2 60 60 Please contact us at www.vaisala.com/requestinfo www.vaisala.com Ref. B211435EN-B ©Vaisala 2014 Scan the code for more information This material is subject to copyright protection, with all copyrights retained by Vaisala and its individual partners. All rights reserved. Any logos and/or product names are trademarks of Vaisala or its individual partners. The reproduction, transfer, distribution or storage of information contained in this brochure in any form without the prior written consent of Vaisala is strictly prohibited. All specifications — technical included — are subject to change without notice.