Specifications

100 Commerce Way, Woburn, MA 01801
TEL: 1-888-VAISALA (824-7252) FAX: [phone]
E-MAIL: [e-mail] Access catalog on-line at: www.vaisala.com/inc/ssdcat
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CARBON DIOXIDE
Measurement range:
-GM 12 A 0 to 3000 ppm
-GM 12 B 0 to 3%
Accuracy <± [1% of FS + 2%
Reading]
Stability (over 1 year) <±5% FS
Repeatability
-Zero <± 0.5% FS
-Full scale <± 1.5% FS
Response time
(10 to 90% response) 30 sec
Zero drift
with time < ±2% FS/year
with temperature < ±0.5% FS/°F (< ±0.1% FS/°C)
Sensing technique single beam NDIR
GENERAL
Output signal 0...1V linear
Power supply rechargeable Battery
Pack
Battery life (minimum) 12 hours
Display 4 digit 12.5 mm LCD
Alarm adjustable 0 to full scale
Warm up time
-Operational 2 min
-Full specification <5 min
Operating temperature
Range +32 to 113°F (0 to 45°C)
Operating humidity
Range 0 to 100% RH
(non-condensing)
Storage temperature
Range -4 to 140°F (-20 to +60°C)
Housing material: ABS Plastic
Housing classification NEMA 4
Weight 1.8 KG
ACCESSORIES
18180 3 m PVC tube for remote sampling
18181 spare battery pack
18182 230 V battery charger
18192GM field calibration kit
(for calibration checks of stationary instruments)
Calibration gases with related accessories
Specifications subject to change without notice.
GM 12A & GM 12B
Dimensions in mm
TECHNICAL DATA - GM 12A/B
GM 12 CARBON DIOXIDE METER
ON/OFF
PUMP
ppm CO
2
ALARM
BATTERY
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