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5-2. Measuring gas setting "1. SELECT GAS"
A measuring gas can be set.
(1) Press the
▲
/
▼
switch and select "1. SELECT GAS" from the setup mode menu.
(2) When the ENTER switch is pressed, the currently set measuring gas, base gas, measuring range and
other information are displayed as shown below.
(3) When the ENTER switch is pressed again, the SPE number (a number allocated to a combination of
measuring and base gases, measuring range, etc.) in the upper right section of the screen blinks. Every
time the
▲
or
▼
switch is pressed, the displayed SPE number changes.
(4) Press the ENTER switch to confirm it. After a value is confirmed, the purity meter returns to the setup
mode menu automatically.
NOTE
Pressing the ESC switch twice returns to the setup mode menu.
The purity meter provides the following two specifications. Select one suitable for the use.
SPE number Measuring gas Measuring range
Description
SPE-8402
(standard
setting)
SF6 (air base)
0 - 99.9% up
When the sensor detects a measurement result
exceeding 99.9%, it displays "99.9%up".
The purity meter is shipped with this
specification set.
SPE-8401
SF6 (air base)
0 - 100.0 vol%
When the sensor detects a measurement result
exceeding 99.9%, it simply displays the
measurement result like "100.0%" or "100.7%".
This specification is effective in checking the
sensitivity or evaluating measurement including
errors.
