Environnement
S.A
MIR 9000H
Duplication prohibited
3–54
APRIL 2011
3.4.1 CALIBRATION
3.4.1.1 Necessary
material
The cylinders of span gas used will be connected to the « span » inlet.
3.4.1.2 Procedure
Zero check :
Select the zero inlet using the
[zero]
key and wait for measurement to be stabilized. The
reading should nor be higher than 1% full scale or lower than 1% full scale (with the possible
offset programmed being substracted).
Carry out a "ZERO REFERENCE" if the measurements are shifted. Verify again the
measurements in zero.
Control of the scale point :
First make a zero control.
Inject the span gas,
If the reading of the analyzer (without offset) is outside the limits :
[Value of the standard gas
(precision of the gas + 2%)]
Calculate the new calibration coefficient :
)
(
tan
)
(
)
(
offset
without
read
Value
gas
dard
s
the
of
Value
K
K
old
new
Correct the calibration coefficient :
The correction of the calibration coefficient is carried out for each gas in the « Span/Factors »
menu.
CAUTION :
It is advised to write down the "
)
(
old
K
" before to modify it, because i twill be cancelled
by the validation of "
)
(
new
K
".
Summary of Contents for MIR 9000H
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