Calibration Specifications
|
Sensor |
Zero Gas |
Zero Cal Value |
Span Cal Gas |
Span Cal
|
|
|
|
|
|
|
Value |
Time (min) |
|
COMB Pentane1,2 |
Fresh Air |
0 |
1.45 % Vol Methane |
58 % LEL |
1 |
|
COMB Methane (0 - 5 % Vol) |
Fresh Air |
0 |
2.5 % Vol Methane |
2.5 % |
1 |
|
COMB Methane (4.4 % Vol)1 |
Fresh Air |
0 |
1.45 % Vol Methane |
33 % LEL |
1 |
|
COMB Methane (5 % Vol) |
Fresh Air |
0 |
1.45 % Vol Methane |
29 % LEL |
1 |
|
COMB Propane (1.7 % Vol)1,2 |
Fresh Air |
0 |
1.45 % Vol Methane |
46 % LEL |
1 |
|
COMB Propane (2.1 % Vol)1,2 |
Fresh Air |
0 |
1.45 % Vol Methane |
37 % LEL |
1 |
|
COMB Butane (1.4 % Vol)1,2 |
Fresh Air |
0 |
1.45 % Vol Methane |
45 % LEL |
1 |
|
COMB Hydrogen (4,0 % Vol)1,2 |
Fresh Air |
0 |
1.45 % Vol Methane |
33 % LEL |
1 |
|
O2 |
Fresh Air |
20.8 % |
15 % O2 |
15 % |
1 |
|
CO |
Fresh Air |
0 |
60 ppm CO |
60 ppm |
1 |
|
H2S |
Fresh Air |
0 |
20 ppm H2S |
20 ppm |
1 |
|
SO2 |
Fresh Air |
0 |
10 ppm SO2 |
10 ppm |
1 |
|
Cl2 |
Fresh Air |
0 |
10 ppm Cl2 |
10 ppm |
2 |
|
NO |
Fresh Air |
0 |
50 ppm NO |
50 ppm |
4 |
|
NO2 |
Fresh Air |
0 |
10 ppm NO2 |
10 ppm |
2 |
|
NH3 |
Fresh Air |
0 |
25 ppm NH3 |
25 ppm |
2 |
|
PH3 |
Fresh Air |
0 |
0.5 ppm PH3 |
0.5 ppm |
1 |
|
HCN |
Fresh Air |
0 |
10 ppm HCN |
10 ppm |
4 |
|
ClO22 |
Fresh Air |
0 |
2 ppm Cl2 |
0.8 ppm |
6 |
|
IR CO2 (10 % Vol) |
Fresh Air |
0.03 % |
2.5 % CO2 |
2.5 % |
2 |
|
IR Butane (25 % Vol) |
Fresh Air |
0 |
8 % Vol |
8 % Vol |
2 |
|
IR Propane (100 % Vol) |
Fresh Air |
0 |
50 % Vol Propane |
50 % Vol |
2 |
|
IR Propane (100 % LEL) |
Fresh Air |
0 |
0.6 % Vol Propane |
29% LEL |
2 |
|
IR Methane (100 % Vol) |
Fresh Air |
0 |
50 % Vol Methane |
50 % Vol |
2 |
|
Span values can be changed if using different gas cylinders than those listed. Changes can be made using MSA Link software and through calibration cylinder setup. |
|||||
|
1Calibration approach is only valid when the device is configured to display %LEL units. 2Calibration approach promotes direct device readings that align with the sensor gas, not the span cal gas. For most accurate results, calibration with the gas of interest is recommended. |
|||||
WARNING!
Any changes to the standard calibration process must be reviewed by a trained and qualified individual. If changing the span cal gas that is applied to the device or the span cal value of the device from those listed above, the user must ensure that cal gas and span settings match prior to performing a calibration (4.10). Additional care should be taken to ensure range and units of the span value are in line with the concentration of the cal gas cylinder being used.
Failure to follow this warning can result in serious personal injury or death.
NOTE: LEL values, if not listed here, are according to EN 60079-20-1. Local regulations may differ.