Vaisala GMT220 - Manual (Page 35)

Chapter 6 ____________________________________________________________ Technical Data
VAISALA _______________________________________________________________________ 35
CHAPTER 6
TECHNICAL DATA
This chapter provides the technical data of the Product.
Technical specifications
Measuring range
GMT221 0 ... 2% CO
2
0 ... 3% CO
2
0 ... 5% CO
2
0 ... 10% CO
2
0 ... 20% CO
2
GMT222 0 ... 2000 ppm
0 ... 3000 ppm
0 ... 5000 ppm
0 ... 7000 ppm
0 ... 10 000 ppm
Accuracy (including repeatability, non-linearity and calibration
uncertainty) at 25 °C and 1013 hPa
GMT221 ± (1.5% of range + 2% of reading)
(applies for concentrations above 2% of full scale)
GMT222 ± (1.5% of range + 2% of reading)
Temperature dependence, typical - 0.3 % of reading / °C (output
decreases when temperature rises,
default 25
C (77 F))
Pressure dependence, typical + 0.15 % of reading / hPa (output
increases when pressure rises, default
1013 hPa (1 atm))
Long-term stability < ± 5 %FS / 2 years
Response time (63%)
GMT221 20 seconds
GMT222 30 seconds
Warm-up time 30 seconds
15 minutes full specification