Performance Specification
Combustible Gas
|
Range |
0 to 100 % LEL or 0 to 5 % CH4 |
|
Resolution |
1 % LEL or 0.05 % vol CH4 |
|
Reproducibility |
3 % LEL, 0 % to 50 % LEL reading or 0.15 % CH4, 0.00 % to 2.50 % CH4 (normal temperature range) |
|
5 % LEL, 50 % to 100 % LEL reading or 0.25 % CH4, 2.50 % to 5.00 % CH4 (normal temperature range) |
|
|
5 % LEL, 0 % to 50 % LEL reading or 0.25 % CH4, 0.00 % to 2.50 % CH4 (extended temperature range) |
|
|
8 % LEL, 50 % to 100 % LEL reading or 0.4 % CH4, 2.50 % to 5.00 % CH4 (extended temperature range) |
|
|
Response time (typical) |
90 % of final reading ≤ 15 sec (Pentane) and 10 sec (methane) (normal temperature range) |
Combustible Gas Cross Reference Factors for General Purpose Calibration Using Calibration Cylinder (P/N 10053022)
|
Combustible Gas |
Methane Calibration |
Pentane Simulant Calibration |
|
Acetone* |
1.09 |
0.62 |
|
Acetylene |
1.07 |
0.61 |
|
Butane |
1.37 |
0.79 |
|
Cyclohexane |
1.94 |
1.11 |
|
Ethane |
1.27 |
0.73 |
|
Ethanol* |
1.16 |
0.66 |
|
Ethylene |
1.09 |
0.62 |
|
Gasoline |
1.63 |
0.93 |
|
n-Hexane |
1.86 |
1.06 |
|
Hydrogen |
0.98 |
0.56 |
|
Isobutane |
1.63 |
0.93 |
|
Isopropyl Alcohol* |
1.55 |
0.88 |
|
Methane |
1.00 |
0.57 |
|
Methanol* |
0.93 |
0.53 |
|
Nonane* |
4.48 |
2.56 |
|
Nonane with EX-H sensor |
3.03 |
1.73 |
|
Pentane |
1.90 |
1.00 |
|
Propane |
1.39 |
0.79 |
|
Propylene |
1.14 |
0.65 |
|
Toluene* |
2.09 |
1.19 |
|
Xylene* |
4.83 |
2.76 |
|
Xylene with EX-H sensor |
3.57 |
2.04 |
NOTE: Gas in the table above indicated with a * will have significantly longer response times, especially at lower concentration levels.
Response notes
| 1. | Some compounds may reduce the sensitivity of the combustible gas sensor by poisoning or inhibiting the catalytic action or by polymerizing on the catalytic surface. |
| 2. | Multiply the displayed % LEL value by the conversion factor above to get the true % LEL. The conversion cross reference factors above are only applicable when the device is configured to display %LEL units, not %Vol units. |
| 3. | These conversion factors should be used only if the combustible gas is known. |
| 4. | All factors are based on the IEC 100 % LEL levels |
| a. | i.e. Methane 100% LEL = 4.4 Vol %, |
| b. | Pentane 100% LEL = 1.1 Vol % |
| c. | Propane 100% LEL = 1.7 Vol % |
| 5. | These conversion factors are typical. Individual units may vary by ±25 % from these values. |
| 6. | The results are intended for guidance only. For the most accurate measurements, a device should be calibrated using the gas under investigation. |
| 7. | The conversion factors for the standard EX and the specialized EX-H and EX-M sensor are the same except for EX-H and Nonane and o-Xylene. The conversion factors for these two vapors are therefore especially mentioned in the table. |
Oxygen
The oxygen sensor has built-in temperature compensation. However, if temperature shifts dramatically, the oxygen sensor reading may shift. Zero the device at a temperature within 30 °C (86 °F) of the work place temperature for the least effect.
|
Range |
0 to 30 vol.% O2* |
|
Resolution |
0.1 vol.% O2 |
|
Reproducibility |
0.7 vol.% O2 for 0 to 30 vol.% O2 |
|
Response time (typical) |
90 % of final reading ≤ 16 seconds (normal temperature range) |
|
Sensor Cross-Sensitivity |
The oxygen sensor has no common cross-sensitivities. |
* Certified for 0 - 25 vol.% O2
Carbon Monoxide
|
Data is presented as the indicated output in PPM which will result from the application of the test gas. |
|
Range |
0 - 1999 ppm (0 - 1999 mg/m3) CO |
|
Resolution |
1 ppm (1.2 mg/m3) CO for 0 to 1999 ppm |
|
Reproducibility |
±5 ppm (5.8 mg/m3) CO or 10 % of reading, whichever is greater (normal temperature range) |
|
±10 ppm (11.6 mg/m3) CO or 20 % of reading, whichever is greater (extended temperature range) |
|
|
Response time (typical) |
90% of final reading ≤ 15 seconds (normal temperature range) |
|
Test Gas Applied |
Concentration (PPM) Applied |
CO Channel % Cross-sensitivity |
CO Reading (PPM) |
|---|---|---|---|
|
Hydrogen Sulfide (H2S) |
40 |
0 |
0 |
|
Carbon Monoxide (CO) |
100 |
100 |
100 |
|
Nitric Oxide (NO) |
50 |
84 |
42 |
|
Nitrogen Dioxide (NO2) |
11 |
0 |
0 |
|
Sulfur Dioxide (SO2) |
9 |
-4 |
-1 |
|
Chlorine (Cl2) |
10 |
0 |
0 |
|
Hydrogen Cyanide (HCN) |
30 |
-5 |
-2 |
|
Ammonia (NH3) |
25 |
0 |
0 |
|
Toluene |
53 |
0 |
0 |
|
Isopropanol |
100 |
-8 |
-8 |
|
Hydrogen (H2) |
100 |
48 |
48 |
NOTE: Cross-Sensitivity
| • | All concentrations and readings have been rounded to the nearest ppm |
| • | These cross-sensitivity values are intended for reference only and may change under varying environmental conditions, varying concentrations, varying sensor slots, and varying sensor age. |
| • | This table does not contain a complete or inclusive list of cross-sensitive gases, but rather is a sampling of the most common examples |
Hydrogen Sulphide
|
Range |
0 - 200 ppm (0 to 284 mg/m3) H2S |
|
Resolution |
1 ppm (1.4 mg/m3) H2S, for 3 to 200 ppm (4,3 to 284 mg/m3) H2S |
|
Reproducibility |
±2 ppm (2.8 mg/m3) H2S or 10 % of reading, whichever is greater (normal temperature range)
|
|
±5 ppm (7,1 mg/m3) H2S or 20 % of reading, whichever is greater (extended temperature range) |
|
|
Response time (typical) |
90 % of final reading ≤ 15 seconds (normal temperature range) |
|
Test Gas Applied |
Concentration (PPM) Applied |
H2S Channel % Cross-sensitivity |
H2S Reading (PPM) |
|---|---|---|---|
|
Hydrogen Sulfide (H2S) |
40 |
100 |
40 |
|
Carbon Monoxide (CO) |
100 |
1 |
1 |
|
Nitric Oxide (NO) |
50 |
25 |
13 |
|
Nitrogen Dioxide (NO2) |
11 |
-1 |
-1 |
|
Sulfur Dioxide (SO2) |
9 |
14 |
2 |
|
Chlorine (Cl2) |
10 |
-14 |
-2 |
|
Hydrogen Cyanide (HCN) |
30 |
-3 |
-1 |
|
Ammonia (NH3) |
25 |
-1 |
-1 |
|
Toluene |
53 |
0 |
0 |
|
Isopropanol |
100 |
-3 |
-3 |
|
Hydrogen (H2) |
100 |
0 |
0 |
NOTE: Cross-Sensitivity
| • | All concentrations and readings have been rounded to the nearest ppm |
| • | These cross-sensitivity values are intended for reference only and may change under varying environmental conditions, varying concentrations, varying sensor slots, and varying sensor age. |
| • | This table does not contain a complete or inclusive list of cross-sensitive gases, but rather is a sampling of the most common examples. |
Hydrogen Sulphide Low Concentration (H2S-LC)
|
Range |
0 - 100 ppm H2S |
|
Resolution |
0.1 ppm H2S |
|
Reproducibility |
±0.2 ppm H2S or 10 % of reading, whichever is greater (normal temperature range) |
|
±0.5 ppm H2S or 20 % of reading, whichever is greater (extended temperature range) |
|
|
Response time (typical) |
90% of final reading ≤ 15 seconds (normal temperature range) |
Nitrogen Dioxide
|
Range |
0 - 50 ppm NO2 |
|
Resolution |
0.1 ppm NO2 |
|
Reproducibility |
±1 ppm NO2 or 10 % of reading, whichever is greater (normal temperature range) |
|
±2 ppm NO2 or 20 % of reading, whichever is greater (extended temperature range) |
|
|
Response time (typical) |
90 % of final reading ≤ 20 seconds (normal temperature range) |
Sulfur Dioxide
|
Range |
0 - 20 ppm SO2 |
|
Resolution |
0.1 ppm SO2 |
|
Reproducibility |
±1 ppm SO2 or 10 % of reading, whichever is greater (normal temperature range) |
|
±2 ppm SO2 or 20 % of reading, whichever is greater (extended temperature range) |
|
|
Response time (typical) |
90 % of final reading ≤ 20 seconds (normal temperature range) |
Hydrogen Resistant CO (CO-H2-RES)
|
Range |
0 - 1999 ppm CO |
|
Resolution |
1 ppm CO |
|
Reproducibility |
±5 ppm CO or 10 % of reading, whichever is greater (normal temperature range) |
|
±10 ppm CO or 20 % of reading, whichever is greater (extended temperature range) |
|
|
Response time (typical) |
90% of final reading ≤ 20 seconds (normal temperature range) |
|
Hydrogen resistance |
< 5 % |