ABB EL6010, Руководство оператора

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42/24-30 EN Rev. 1 EL6010 Gas Analyzer in Category 2G Operator’s Manual 35
Chapter 6 Calibrate the Gas Analyzer
Calibration Verification
Calibration
Verification The gas analyzer has been calibrated in the factory. Transport stresses as well as
pressure and temperature conditions at the installation location may however
influence the calibration. Thus it is recommended to verify the gas analyzer
calibration at the installation location prior to start-up.
Test Gases
Test Gas Dew Point The test gas dew point must be nearly identical to the sample gas dew point.
Test Gas Supply Test gases should be connected to the sample gas inlet (e.g. using a multiple-path
valve).
EL6010-Uras14: Notes for Calibration
For zero-point calibration:
Inert gas, e.g. nitrogen (N
2
) or sample component-free
ambient air
Test Gases
For end-point calibration: Calibration cell (optional) or test gas mixture (Concen-
tration: 70% of the span value of the measuring range
selected is recommended; the maximum value is the
span value of the reference measuring range)
Calibration Cell
(Option) Use of a calibration cell allows the EL6010-Uras14 gas analyzer to be calibrated
without using test gas containers.
The calibration cell is filled with a test gas matched to the sample components
and measuring ranges for which the gas analyzer is set up. It is routed to the
beam path during span calibration.
The calibration cell set point should be checked at long intervals (recommenda-
tion: once a year, see page 40 for instructions).