Honeywell XNX - Page 53

XNX Universal Transmitter Quick Start Guide
53
Gas
Star
Rating
Gas
Star
Rating
Gas
Star
Rating
Acetone 4* Ethane 6* Nonane 2*
Ammonia 7* Ethanol 5* Octane 3*
Benzene 3* Ethyl acetate 3* Pentane 4*
Butanone 3* Ethylene 5* Propane 5*
Butane 4* Heptane 3* Propan-2-ol 4*
Butyl acetate 1* Hexane 3* Styrene 2*
Butyl acrylate 1* Hydrogen 6* Tetra hydrafuran 4*
Cyclohexane 3* Methane 6* Toluene 3*
Cyclohexanone 1* Methanol 5* Triethylamine 3*
Diethyl ether 4* MIBK 3* Xylene 2*
To cross calibrate the MPD-CB1 combustible gas sensor:
1. Obtainthestarratingforboththetestgasandthegastobe
detectedfromthetableabove.
2. Setthegasselectiontothestarratingwhichisthesamestarrating
ofthegasbeingdetected.
3. Thesevaluesmaythenbeusedinthefollowingtabletoobtainthe
requiredmetersettingwhena50%LELtestgasisappliedtothe
detector.
* Rating of
Calibration
Gas
* Rating of Gas to be Detected
8* 7* 6* 5* 4* 3* 2* 1*
8* 50 62 76 95 - - -
7* 40 50 61 76 95 - -
6* 33 41 50 62 78 95 -
5* 26 33 40 50 63 79 95 -
4* - 26 32 40 50 63 80 95
3* - - 26 32 40 50 64 81
2* - - - 25 31 39 50 64
1* - - - - 25 31 39 50
NOTE
These settings must only be used with a calibration gas concentration of 50% LEL.
4. Ifasensoristobeusedtodetectagasotherthanthatforwhich
itwascalibrated,therequiredcorrectionfactormaybeobtained
fromthefollowingmultiplicationtable.Themeterreadingshould
bemultipliedbythisnumberinordertoobtainthetruegas
concentration.