Honeywell 04230-A-1001 - Calibration Check Using the Gassing Cell

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MAN0530 Issue 15 - 07/17 Searchline Excel
2104M0506
Receiver Gas Calibration Low test Filter Typical Response High Test Filter Typical Response
Methane D 0.50 – 1.1 LEL.m F 1.5 – 3.2 LEL.m
Ethane C or D 0.60 – 1.3 LEL.m F 1.5 – 2.7 LEL.m
Propane B or C 0.85 – 1.1 LEL.m F 2.6 – 3.2 LEL.m
Butane B or C 0.85 – 1.1 LEL.m F 2.6 – 3.2 LEL.m
Pentane B or C 0.85 – 1.1 LEL.m F 2.6 – 3.2 LEL.m
Ethylene B or C 0.50 – 1.3 LEL.m E 2.6 – 3.2 LEL.m
Propylene B 1.00 – 2.0 LEL.m E 1.2 – 3.2 LEL.m
Butadiene B 1.00 – 2.0 LEL.m E 1.2 – 3.2 LEL.m
(5) If this is the rst time that the unit has been tested with this particular test lter, record
the gas reading that is produced. This reading should be used to verify correct
operation in the future.
(6) Ifthisisnotthersttimethattheunithasbeentestedwiththisparticularlter,notethe
 gas reading and compare it to the original value recorded for this unit and lter. If the
reading is within ± 0.5 LEL.m of the original value, the unit is working correctly.
(7) If the reading is Ok, proceed to step 13. If not Ok, the unit may need cleaning
and/or re-zeroing.
(8) Tocleantheunit,rstremovethetestlterfromthecowling.
(9) Use a damp, lint-free, cloth or lens wipe to clean the windows of the transmitter and
` the receiver.
(10) Zero the unit using the SHC-1 in CALIBRATE mode.
(11) Re-insert the test filter into the cowling in front of the receiver and verify that the
 testreadingisnowwithin±0.5LEL.mofthereadingoriginallyobtainedwiththislter.
If the gas reading is still not within the expected range, check the system alignment
(see section 3.7 Alignment and Commissioning) and repeat the test in step 6.
(12) Whennished,removethetestlterandcancelINHIBIT by selecting MAIN in the menu.
(13) Disconnect the SHC-1 Handheld Interrogator.
(14) Store the readings in a safe place.
4.3 CALIBRATION CHECK USING THE GASSING CELL
The gassing cell is designed to allow easy calibration checking using a high concentration test
gasasopposedtothestandardplastictestlters.TheintegratedLEL.mreadingofthegas
concentration in the cell can be calculated using the following formula:
Int(lel.m)
xl
= L
cell
* (Conc
gas
/ LEL
gas
)
T