Gas Data GFM436 - Page 72

9ENG8008 GFM436 User Manual
User Calibration- 72
The zero Cal point requires a gas known to have 0.0% of the measured gas for the specific gas channel being
calibrated. The low and high range Cal points will depend on the specific gas channel being calibrated and is
summarised in the following table:
Gas Channel Zero Cal Point Low Range Cal Point High Range Cal Point
CH
4
0.0% 5.0% 60.0%
CO
2
0.0% 5.0% 40.0%
O
2
0.0% 6.0% 20.9%
H
2
S 0ppm 1500ppm 3000ppm
CO 0ppm 1000ppm 2000ppm
The same information can be seen built into the instrument when selecting which calibration option to calibrate.
Navigate through the different calibration ranges and different gases using the up and down arrow.