horiba GA-370, Инструкция по эксплуатации

Страница: 48 / 95

3 Operations
32
5.
Select the range to set and then press the [OK] button.
The setting is updated and the RANGE CHANGE screen reappears.
Fig. 32 RANGE CHANGE screen
Table 13 Selection items in RANGE CHANGE screen
Tip

In the case of auto range switching, the range is switched automatically as follows.

Auto range is disable when operating with a calibration range (calibration mode).

When [AUTO] or [EXT] is selected, ([AUTO]) or ([EXT]) is displayed on the right side of
the range status indication in the MEASUREMENT screen (measurement value display).
Item Description
[1ppm] button Sets the range to 1 ppm.
[2ppm] button Sets the range to 2 ppm.
[5ppm] button Sets the range to 5 ppm.
[10ppm] button Sets the range to 10 ppm.
[AUTO] button
Sets auto range switching.
The range is switched automatically depending on the measured value.
[EXT] button
Sets external range switching.
The range becomes able to be switched by external contact input.

If the measurement value becomes more than 90% of the current range, the
measurement range switches to the concentration range that is one higher.

If the measurement value becomes less than 80% of the concentration range that is one
lower than the current range, the measurement range switches to the concentration range
that is one lower.