GMW90 Datablad

GMW90 Datablad
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
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Ref. B211296EN-D ©Vaisala 2015
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