User guide

18
IM 11M06D03-01E-A
8.2 CALIBRATION
Theconverteriscalibratedinsuchawaythattheactualzeroandspangasesaremeasuredandthosemeasured
valuesareusedtoagreewiththeoxygenconcentrationsintherespectivegases.Therearethreetypesofcalibration
proceduresavailable:
Manual calibration: conducting zero and span calibrations, or either of these calibrations in turn. Manual
calibration needs the MC1 Manual Calibration Unit to allow manual supply of the calibration gases.
Semi-automatic calibration which uses the touch panel or a contact input signal and conducts calibration
operations based on a preset calibration time and stable time.
Automatic calibration conducted at preset intervals. Semi-automatic and automatic calibration needs the
 AC1AutomaticCalibrationUnittoallowautomaticsupplyofthecalibrationgases.Thefollowingsectionsset
forth the manual calibration procedures. For details on semi-automatic and automatic calibrations, consult
 Chapter9,“Calibration,”intheZR22G/ZR402GInstructionManual.
8.2.1 MODE SETTING
Forthemodesetting,dothefollowing:
1) Press the Setup key in the basic panel display to display the Execution/Setup display.
2) Select Maintenance in the Execution/Setup display to display the Maintenance panel display.
 3) ThenselectCalibration setuptodisplaytheCalibrationsetupdisplayasFigure8.3shows.
4) Select Mode in this panel, and then select “Manual,” “Semi-Auto” or “Auto.”
Figure 8.3
8.2.2 ZERO-GAS CONCENTRATION
Set the oxygen concentration for zero-point calibration. Enter the oxygen concentration for the zero gas in the
cylinderusedinthefollowingprocedures:
 1) SelectZerogasconc.fromtheCalibrationsetupdisplay.Thenumeric-dataentrydisplaythenappears.
 2) Enterthedesiredoxygenconcentrationforthezero-pointcalibration.(Thezero-gassetrangesfrom0.3to
  100%O2.)
 3) Enter00098foranoxygenconcentrationof0.98vol%O2.