Yamatake HGC303, Руководство пользователя

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Yamatake Corporation Operation
Model HGC303 - Heat Value Gas Chromatograph 3-43
RF (Response Factor)
An RF is a correction factor used to discern whether a new calibration is correct as
compared with last valid calibration. (For each component)
The model HGC303 uses peak height for RF calculation.
Equation:
Where:
= Response factor for component “n“
= Peak height of component “n” in calibration gas.
= Gas concentration (Unit: mole%) of component “n” in calibration gas.
RF% DEV (Response Factor Percent Devitation)
RF% DEV is calculated by using the following equation.
RF% DEV =
% DEV RF Limit
The model HGC303 automatically calculates a “RF% DEV” and decides whether the
value is smaller than the “% DEV RF Limit” or not.
|RF% DEV|
≤
“%DEV RF Limit” => “OK“
|RF% DEV|
>
“%DEV RF Limit” => “NG“
If all calculation are “OK“, the checked components are calibrated and the new RF is
used as the response factor.
If a NG message appears, none of the components are calibrated and the previous RF
will be used as the response factor.
The user can manually change the “% DEV RF Limit” in Configuration mode.
(Refer to “3-5-5 : Configuration mode” on page 3-54)
RF
n
PH
n
Cal
n
------------ =
RF
n
PH
n
Cal
n
RF
new
RF
old
–
RF
old
------------------------------------- 100
×