Riken Keiki RX-8000, Руководство по эксплуатации

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6 Maintenance 6-2. Gas calibration
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RX-8000
<Span Adjustment>
Perform the span adjustment using the procedure shown below.
(1) Prepare the calibration gases (for %LEL, vol%, and O2) and a set of gas sampling bags.
(2) Remove the filter tube, gas sampling hose, etc. to allow the gas sampling bag to be directly connected to
the gas inlet (GAS IN).
(3) Check that the gas detector is in the detection mode.
Detection Mode
(4) Perform the air calibration. * See "4-7. Air calibration mode".
(5) Collect each calibration gas in each gas sampling bag.
(6) Press the ▲ and ▼ switches simultaneously for about a second to enter the span adjustment mode
(ONE CAL).
HC %LEL adjustment HC vol% adjustment O2 adjustment ESCAPE
NOTE

If the Air Calibration Mode screen is displayed because the timing of pressing the ▲ and ▼ switches is
off, release the both switches and then try again.

In the span adjustment mode, select the concentration display that can be adjusted with the ▲ or ▼
switch.

Press the ESC switch to abort the running operation.

To return from the span adjustment mode to the detection mode, select ESCAPE and then press the
ENTER switch.
WARNING
After the adjustment is completed, do not forget to return to the detection mode.
(
If the monitor remains in the regular maintenance mode, it does not automatically return to the
detection mode.)