MPD Operating Manual
28
9.3 MPD-CB1
Characteristic Description
Gases Detected:
Methane gas in the %LEL range.
Combustible gases in the %LEL range with sensitivity
dependent on gas type.
Measuring Range:
0 – 100%LEL Methane
Other gas ranges may vary.
Environmental - XNX MPD
Sensor Storage Temperature
-40°C to +65°C/-40°F to +149°F
Operating Temperature Range:
-40°C to +65°C
Operating Humidity Range:
Continuous: 20 to 90% RH non-condensing
Intermittent: 10 to 99% RH non-condensing
Operating Pressure Range:
80 to 120 kPa
Warm Up Time:
10 minutes
Response Time:
<30 seconds
Time to reach 90% of a step change in gas concentration
of 100% of FS Methane measured in accordance with the
Canadian Standards Association (CSA) method of testing.
Voltage Range:
2.42V to 2.90V Bridge (at 200mA drive current)
Drive Current:
200mA ± 1mA (From control equipment)
Power Consumption:
<600mW
Signal Output:
mV Bridge
Linearity:
<±5% FS
Accuracy:
<±5% FS
Zero Stability with Time:
<±3% FS/year
Span Stability with Time:
<±5% FS/year
Poisoning:
The sensing elements may become inactive after extensive
exposure to silicones, halogenated hydrocarbons, and heavy
metal or sulfur compounds.
Expected Operating Life:
5 years (Typical without Poisoning)
Dimensions:
2.080 in Dia x 3.016 in L / 52.83 mm Dia x 76.62 mm L
Weight:
1.2 lbs / 544.3g
9.2.1 MPD-CB1 Cross Sensitivity
Cross sensitivity information for MPD-CB1 can be found in Section 7.2, Tables 1
and 3.
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