User guide
6-16
IM 11Y01B01-01E-A 6th Edition :Feb 13, 2013-00
<6. BASIC OPERATION>
OFFLINE CALIBRATIONS
ZERO CALIBRATION – manual or automatic calibration of
Zero - ensure there is no absorption peak feature before
performing a zero calibration, failure to do so can result is false
low readings later when the un-desired target gas has been
removed.
ZERO OFFSET – allows manual adjustment of Zero by applying
a concentration offset – use only with factory guidance
SPAN CALIBRATION – manual or automatic calibration of
Span – use only when sure the purge paths are correctly
congured
TRANSMISSION – adjustment of transmission value
DARK CURRENT – DISABLED feature, Factory use only
PEAK SEARCH – DISABLED feature that initiates a system
scan of absorption peaks to validate current peak selection is
correct, Factory use only
OFFLINE VALIDATIONS
CHECK GAS 1 to 2 – allows manual or automatic conguration
up to 2 check gasses.
Two Gas Validation – allows the user to congure two
validation gas checks sequentially.
An example would be Oxygen analyzers used for Marine
Vapor Recovery applications whereby a single “validation”
command shall execute both a zero and span gas check.
Results for the two gas off-line validation are shown for both
gases along with their corresponding results