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9
of
30
5.
Press the
SELECT
button a fifth time to set or adjust the
full-scale range of the
capacitance diaphragm gauge.
Use the
RAISE
or
LOWER
button to select the
proper CDG RANGE value shown on the display. Default full-scale range is
1.00 Torr. CDG RANGE LED will illuminate during adjustment. See
Appendix 3
for
permissible
pressure ranges.
6.
Press the
SELECT
button a sixth time to zero-adjust the control unit. Use the
RAISE
or
LOWER
button to increase or decrease the GAUGE ZERO
pressure value
shown on the display. Default value is 0.0. GAUGE ZERO LED will illuminate
during adjustment. See
Zero Adjustment
7.
Press the
SELECT
button a seventh time to adjust the
atmospheric pressure value
for the convection-enhanced Pirani gauge and upper range pressure value of the
capacitance diaphragm gauge
. Use the
RAISE
or
LOWER
button to increase or
decrease the CDG CALIB / CONV ATM pressure
value
shown on the display.
CDG CALIB / CONV ATM LED will illuminate during adjustment. See the
Pressure
Adjustment
section
The GAUGE ZERO and CDG CALIB / CONV ATM pressure values may be
independently modified for each sensor. Use the GAUGE SELECT button to
choose between CEP / 275 and CDG.
8.
Press the
SELECT
button an eighth time to set the
pressure units for both
pressure gauges and the gas response curve for the 275 / CEP
. Use the
RAISE
or
LOWER
button to select the proper
UNITS & GAS values
shown on the display.
User can select between
torr, millibar, and Pascal pressure units and air and
argon gas response curves
. Default pressure unit and response curve is
TORR / AIR. UNITS & GAS LED will illuminate during adjustment.
9.
Press the
SELECT
button a ninth time to return the unit to normal operation.
User must press and hold the
RAISE
or
LOWER
button until value changes. Pressing and holding
the
RAISE
or
LOWER
button during Setup Mode allows for faster value change. Display will flash
during all Setup Mode steps. Unit will return to normal operation in approximately 60 seconds
if left unattended during Setup Mode; any changes will be saved. Timer is reset if any button is
pressed during the 60-second timeout.
