Specifications

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TEL: 1-888-VAISALA (824-7252) FAX: [phone]
E-MAIL: [e-mail] Access catalog on-line at: www.vaisala.com/inc/ssdcat
82
TECHNICAL DATA - GMM 11 AND GMM 12 CO
2
MODULES
CARBON DIOXIDE
Measurement range:
- GMM 11/12 A / GMM 11/12 AD 0 to 3000 ppm
- GMM 11/12 B 0 to 3%
- GMM 11/12 C 0 to 10%
Accuracy: <±(1%FS+2% Reading)
Temperature dependence at zero: < ±0.5% FS/°F
(< ±0.1% FS/°C)
Repeatability:
Zero ±0.5%FS
Span ±1.5%FS
Response time:
(from 10 to 90%) 20 sec
(50 sec with diffusion
units)
Sensing method: NDIR
Sampling technique:
Diffusion tube GMM 11AD/12AD
Pump aspiration GMM 11/12A, B and C models
GENERAL
Analog output:
GMM 11 0 to 1V (non-linear)
GMM 12 4 to 20 mA
0 to 20 mA
(linear and switch
selectable)
Power supply: GMM 11 15 VDC (14.25...15.75V)
GMM 12 24 VDC (18...30V)
Power consumption:
GMM 11 0.9 W
GMM 12 2.0 W
Warm up time:
- Operational 3 min.
- Full specification 5...15 min
depending on installation
Operating temperature:
Range +32+113°F (0 to 45°C)
Operating humidity:
Range 0 to 100% RH
(non-condensing)
Storage temperature:
Range -4+140°F (-20 to +60°C)
Dimensions vary between different modules
GMM 11A 140 x 51 x 32 mm
GMM 11AD 140 x 65 x 50 mm
GMM 11B 40 x 51 x 32 mm
GMM 11C 40 x 51 x 32 mm
GMM 12A 150 x 55 x 35 mm
GMM 12AD 150 x 70 x 50 mm
GMM 12B 150 x 55 x 35 mm
GMM 12C 150 x 55 x 35 mm
Specifications subject to change without notice.
GMM 11
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