Servomex 07931001B, Operator'S Manual

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© Servomex Group Limited. 2020 07931001B revision 6
LO or zero calibration
During this process, you must flush the cal cell and all the dead volumes inside the
analyzer with nitrogen for a duration of at least 15 minutes at flows between 500 ml
to1000 ml/min. The customer must enter 0 in the box called CAL1C and enter all the
parameters such as Pressure, temperature and pathlength before performing a
LOW CAL.
Hint: The graph page should show a flat line in the gas line location.
HI calibration
During this process, you must flush the cal cell with the gas from the calibration
bottle for a duration of at least 15 minutes to 30 minutes (longer for adsorbing gases
such as NH
3
) at flows between 500 ml/min to 1000 ml/min.
The customer needs to enter their precise cal bottle concentration in pp,% or other
units they have previously selected in the box called CAL2C in addition to ensure all
the parameters such as Pressure, temperature and pathlength are set correctly
before performing a HIGH CAL.
Note : Ensure that measured gas concentrations reach maximum and stabilized with no
oscillations, and that 2f harmonic graph are correct and as expected, only
calibrate if 2f graph and line positions are in correct locations, the 2f burst has
correct amplitude and the 2f signals are correct and of sufficient amplitude.
Note : When restoring a previous calibration, the time since last calibration will not be
updated.