Operation
Calibration Menu
3-26 Model 42i Low Source Instruction Manual Thermo Electron Corporation
Calibrate Pressure The Calibrate Pressure screen is used to set the calibration pressure.
The calibration pressure should be set only when calibrating the instrument.
• In the Main Menu, choose Calibration > Calibrate Pressure.
•Press to save the current chamber as the new calibration pressure.
Zero/Span Check The Zero/Span Check menu is available with the zero/span valve option. It
is used to program the instrument to perform fully automated zero and span
check or adjustments. Total Duration Hour is the sum of zero, span, and
purge duration minutes. Zero and Span Calibration Reset are toggle items
that change between yes or no when selected, and displayed if auto
calibration is installed.
• In the Main Menu, choose Calibration > Zero/Span Check.
CALIBRATE PRESSURE:
CUR CAL PRES: 150.0 mmHg
CURRENT PRES: 151.6 mmHg ?
SAVE CURRENT PRESSURE
AS CAL PRESSURE
RANGE AVG DIAGS ALARM
ZERO/SPAN CHECK:
>NEXT TIME 01Jan05 12:00
PERIOD HR 24
TOTAL DURATION HR 1.5
ZERO DURATION MIN 30
SPAN DURATION MIN 30
PURGE DURATION MIN 30
ZERO/SPAN AVG SEC 60
ª
RANGE AVG DIAGS ALARM
ZERO CAL RESET
SPAN CAL RESET OFF
ZERO/SPAN RATIO 1
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