-
42
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When "3 Pressure Drop" is selected and the
[ENTER] key is pressed, the pressure loss
is displayed several seconds after "Offset" is
displayed with the adjustment value of the
previous calibration reset.
The manual vacuum pump gradually
decompresses down to -20 kPa.
After matching the pressure loss display to the readout value on the standard pressure
gauge by pressing the [UP] and [DOWN] keys, press the [ENTER] key. Calibration input
is accepted, and the screen returns to the Calibration menu.
After calibration is finished, be sure to
set the plug valve inside the sampler to the
closed position.
*
When altering the pressure by the manual vacuum pump, do not decompress "more than
-50 kPa" or pressurize (apply a positive pressure) by mistake. Doing so might cause the
built-in pressure sensor to malfunction.
* After setting the numerical value, if the [MENU/ESCAPE] key is pressed before the
[ENTER] key is pressed, the screen will return to the Calibration menu without the newly
entered value being accepted.
* The initially displayed pressure loss is displayed with the adjustment value of the previous
calibration reset. For this reason, the pressure loss may differ from the pressure loss value
displayed outside of the Calibration menu. Perform error measurement for the filter
pressure loss in a different menu after calibration.
Ambient Temp (Ambient Temperature Sensor Calibration)
Prepare a "standard thermometer." Bring the
standard thermometer close to the ambient
temperature sensor.
When "4 Ambient Temp." is selected and the
[ENTER] key is pressed, the current
ambient temperature is displayed with the
adjustment value of the previous calibration
reset. After matching the ambient temperature display to the readout value on the
standard thermometer by pressing the [UP] and [DOWN] keys, press the [ENTER] key.
Calibration input is accepted, and the screen returns to the Calibration menu.
*
After setting the numeri
cal value, if the [MENU/ESCAPE] key is pressed before the
[ENTER] key is pressed, the screen will return to the Calibration menu without the newly
entered value being accepted.
* The initially displayed ambient temperature is displayed with the adjustment value of the
previous calibration reset. For this reason, the ambient temperature may differ from the
ambient temperature value displayed outside of the Calibration menu. Perform error
measurement for the ambient temperature in a different menu after calibration.
*
Calibrate the ambient temperature sensor before measuring the suction flow rate
error.
If the ambient temperature sensor is calibrated after the suction flow rate error is
measured, the instantaneous and total flow rate measurement values will be affected by
the ambient temperature measurement err
or.
●
Filter Temp. (Filter Temperature Sensor Calibration)
Prepare a "standard thermometer." Place the standard thermometer near the temperature
sensor in the filter holder support lower section. Select "5 Filter Temp." and press the
[ENTER] key. Then calibrate the filter temperature sensor in the same way as for
calibrating the ambient temperature sensor mentioned above.
C a l i b r a t i o n
P r e s s u r e
D r o p
A d j .
P r e s .
D r o p
k P a
0
0.
C a l i b r a t i o n
A m b i e n t
T e m p .
A d j .
A m b i e n t
T .
゜ C
6
2 0.
