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MAN-MAXPRO
REV. B.0.
Gas concentration applied (LEL)
Example 2:
(O)
Sample Flow Rate:
The pump in the Micromax Pro samples at 450 cc/minute. Use
of the supplied sampling accessories requires the user to be
aware that delay time will occur based on the length of tubing.
Refer to Section 4.5 Remote Sampling (Pretesting) for details.
If the sample flow is restricted or below pre-determined limits,
the Micromax Pro will indicate a flow failure alarm and for
safety reasons will automatically switch to diffusion mode. In
diffusion mode, the sampling pump does not operate but the
instrument is fully operational and will sense the atmosphere
surrounding the instrument.
Refer to Section 8.8 Pump Inlet Filter Replacement for
maintenance.
DO NOT USE non-standard sampling tube or fittings.
Storage:
Temperature Range:
Humidity Range:
Expected Life:
APPENDIX A - SPECIFICATIONS
Instrument reading (LEL)
=
---------------------------------------------------------------------------------------------------------------------------------------------------------
An instrument, calibrated to methane,
reads 22%LEL when exposed to propane.
What is the level of propane being applied?
Calculation:
General
×
relative span of calibration gas
relative span of gas applied
22 x 100
------------------------ - = 34.9%LEL propane
63
-20 degrees C to + 50 degrees C
(-4 degrees F to + 122 degrees F)
0-95% (Noncondensing)
Instrument - 10 Years
Sensors -
2 Years
Batteries - NiMH 2 Years
82
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