Riken Keiki GD-84D-EX Series, Operating Manual

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7. Maintenance 7-5 Performing calibration
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This step confirms that the selected sensor and the
flow passage match.
5 Introduce the gas for zero calibration and press the
TEST/SET key.
Zero calibration starts.
6 Check the zero calibration results.
If zero calibration is successful
[OK] is displayed. The display returns to the display in
step 2.
If zero calibration failed
[NG] is displayed. The display returns to the display in
step 2.
7 Disconnect the calibration gas from this product.
When zero calibration is complete, disconnect the zero gas sampling bag and the gas sampling bag
for exhaust gas. (Refer to ‘7-5-4 Disconnecting the calibration gas’.)
After performing zero calibration for each sensor, return the chamber switching unit to the [D]
(detection mode) position.
8 Press the MODE key.
The display reverts to the [2- 1 ZERO] display.
9 Hold down the MODE key for about three seconds to switch to detection mode.
When [A1] is selected
When all are selected
When [A1] is selected When all are selected
When [A1] is selected When all are selected