www.vaisala.com GMW90 Series Carbon Dioxide, Temperature, and Humidity Transmitters for Demand Controlled Ventilation Applications Features/Benefits GMW90 Series Carbon Dioxide, Temperature and Humidity Transmitters for HVAC are available with either a display opening or a solid front. An optional traffic light indication can also be selected. The Vaisala GMW90 Series CARBOCAP® Carbon Dioxide, Temperature, and Humidity Transmitters are based on new measurement technology for improved reliability and stability. With the new technology the transmitter’s inspection interval is extended to five years. The new generation CARBOCAP® sensor no longer uses an incandescent light bulb, which limits sensor lifetime. This unique sensor consumes very little power compared to other sensors on the market. As a result, instrument self-heating is low and humidity and temperature can be measured correctly. Designed for demand controlled ventilation, these transmitters measure carbon dioxide and temperature, with the option for humidity measurements. The instruments come with a calibration certificate that meets traceability and compliance requirements. Convenient Installation Reliability from Unique Measurement Technology The GMW90 Series Transmitters use advanced Micro-Electro-Mechanical System (MEMS) technology for measuring carbon dioxide. The CARBOCAP® carbon dioxide sensor's continuous reference measurement enables reliable and accurate readings and outstanding long-term stability also in buildings with round-the-clock occupancy. GMW90 Series Transmitters have been designed for quick and easy installation and maintenance. Every model includes a display for easy startup and convenient maintenance. To protect the sensor from dust and dirt during construction and installation, the units can be cabled with back-plate only. Electronics can be snapped on later at an appropriate phase in the construction project. Dip switches make it quick and easy to configure the transmitters. Easy Calibration Regular instrument maintenance guarantees a long product lifetime. Calibration is easiest done with the ▪ Measured parameters: carbon dioxide, temperature, and humidity (optional) ▪ Superior long-term stability with the next generation Vaisala CARBOCAP® sensor ▪ Accurate temperature and humidity measurements in a three-parameter instrument due to the low-power microglow infrared source ▪ Quick and easy installation and maintenance ▪ Calibrated, user-exchangeable modules for carbon dioxide, temperature and humidity ▪ 3-point traceable CO2 calibration (certification included) ▪ Both analog and digital communication (BACnet/Modbus) Make the transmitter blend into your interior design with the optional decorative cover. exchangeable measurement modules. Sensor traceability and measurement quality is easily maintained by snapping on a new module calibrated at Vaisala factory. The instrument can also be calibrated using a hand-held meter or reference gas CO2bottle. The service interfaces are easy to reach by simply sliding the cover down. The closed cover keeps the measurement environment stable during calibration and ensures a top-quality final result. Technical Data Models Operating Environment GMW93 GMW93D GMW94 GMW94D GMW93R GMW93RD GMW93RA Operating temperature range Operating humidity range CO2+T 3-wire, voltage output 3-wire, voltage output with display CO2+T 3-wire, current output CO2+T 3-wire, current output with display CO2+T 3-wire, voltage output CO2+T+RH 3-wire, voltage output with display CO2+T+RH CO2+T+RH 3-wire, voltage output with display and CO2 indicator LEDs 3-wire, current output GMW94R CO2+T+RH 3-wire, current output with display GMW94RD CO2+T+RH Digital (BACnet/Modbus) model GMW95 CO2+T Digital (BACnet/Modbus) model with display GMW95D CO2+T Digital (BACnet/Modbus) model GMW95R CO2+T+RH GMW95RD CO2+T+RH Digital (BACnet/Modbus) model with display Configurable analog/digital models GMW90 CO2+T Configurable analog/digital models GMW90R CO2+T+RH Performance CARBON DIOXIDE Measurement range 0 … 5000 ppm Accuracy +20 ... +30 °C (+ 68 ... + 86 °F) ± (30 ppm + 2 % of reading) +10 ... +20 °C, +30 ... +40 °C ± (35 ppm + 2.7 % of reading) (+50 ... +68 °F, +86 ... +104 °F) -5 ... +10 °C, +40 ... +55 °C ± (45 ppm + 3.8 % of reading) (+23 ... +50 °F, +104 ... +131 °F) Stability in typical HVAC applications Total accuracy at room temperature ±75 ppm at 600 and 1000 ppm incl. 5 years drift* Carbon dioxide sensor Vaisala CARBOCAP® GM10 TEMPERATURE Measurement range Accuracy +20 ... +30 °C (+68 ... +86 °F) +10 ... +20 °C, +30 ... +40 °C (+50 ... +68 °F, +86 ... +104 °F) -5 ... +10 °C, +40...+55 °C (+23 ... +50 °F, +104 ... +131 °F) Temperature sensor -5 ... +55 °C (+23 ... +131 °F) ±0.5 °C (± 0.9 °F) ±0.6 °C (± 1.08 °F) ±0.8 °C (± 1.44 °F) Digital temperature sensor RELATIVE HUMIDITY Measurement range Accuracy Temperature range 0 ... 60 %RH 60 … 80 %RH 80 ... 95 %RH Temperature range 0 ... 95 %RH +10 ... +40 °C (+50 ... +104 °F) ±2.5 %RH ±3.0 %RH ±4.0 %RH -5 ... +10 °C, +40 ... + 55 °C (+23 ... +50 °F, +104 ... +131 °F) 0 ... 60 %RH ±3.5 %RH 60 … 80 %RH ±4.0 %RH 80 ... 95 %RH ±5.0 %RH Stability in typical HVAC applications ±0.5 %RH/year Humidity sensor Vaisala HUMICAP® 180R *Complies with CEC-400-2008-001-CMF Storage temperature range Electromagnetic compliance -5 ... +55 °C (+23 ... +131 °F) 0 … 95 %RH Dewpoint <30 °C (+86 °F) -30 ... +60 °C (-22 ... +140 °F) EN61326-1, Industrial Environment Spare Parts and Accessories CO2 module Temperature Module (CO2+T models) Humidity and Temperature Module (CO2+T+RH models) Decorative cover set (10 pcs.) Connection cable for HM70 hand-held meter USB cable for PC connection GM10SP TM10SP HTM10SP 236285 219980 219690 Mechanics IP class Standard housing color Housing material Output connector Service port connector Weight IP30 White (RAL9003*) ABS/PC, UL-V0 approved Screw terminals max. wire size 2 mm2 (AWG14) 4-pin M8 163 g *RAL code is only indicative with potential small variations in color shade Inputs and Outputs Supply voltage 18 … 35 VDC, 24 VAC ± 20% 50/60 Hz Current output models Outputs 0/4…20 mA, 2 and 3 channel models available Loop resistance 0…600 Ω Power consumption <2W Voltage output models Outputs 0…5/10 V, 2 and 3 channel models available Load resistance 10 kΩ min. Power consumption <1W Default analog scales 0…2000 ppm CO2 T -5…+55°C RH 0…100 %RH Digital models Power consumption <1.5W Output type RS-485 (galvanic isolation, 1.5 kV) RS-485 end of line termination Enable with jumper, 120 Ω Supported protocols Selectable by DIP switch BACnet MS/TP Operating mode Selectable Master/Slave Address range, master mode 0 … 127 Address range, slave mode 128…255 Modbus RTU Address range 0 … 247 Service port RS-485 line for temporary service use Dimensions Dimensions in mm 59.5 30 29.8 4.4 30.5 81 Please contact us at www.vaisala.com/requestinfo www.vaisala.com 34 33.5 9 132.7 27 47.5 5 Ø Ref. B211296EN-D ©Vaisala 2015 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.
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