4
Automatic stability decision function
When taking a measurement, the indication value at the
most stable state is automatically held.
The timing for deciding the stability is different for the
Auto mode and Manual mode.
Press
.
The measurement starts, and the Stability Decision screen opens.
The decision is completed when a beep sounds and the stabilized measured value appears.
<Manual mode>
Hold down
and suction the gas.
The pump operates only while the key is held down, and the stability decision starts when the key is released.
The decision is completed when a beep sounds and the stabilized measured value appears.
Key Lock / Unlock function
Lock the keys to prevent operations other than measurement and history
display. Use this function to prevent accidental setting changes, calibration,
measured value switching, or history erasing. Until the keys are unlocked,
the locked state is retained even if the power is turned OFF, the batteries are
removed, or the AC adapter is disconnected.
1.
Hold down
for 3 seconds or longer on the
O
2
/CO
2
MEASURE Screen.
“Locked” displays.
The key lock function is enabled while “Locked” is displayed.
2.
Unlock the lock function by pressing
again for 3 seconds or longer.
The “Locked” display disappears.
Switching the measurement mode
The mode is set to Auto as the default when the unit is
shipped. When is pressed in the Auto mode, the cycle of
operations from pump and suction of sample gas, automatic
stability decision, and holding of indicated value is completed
automatically.
The Auto mode is usually used. Measurements can be taken in the Manual mode in the following cases.
• When the contents are visible through the packaging, and you want to suction the gas while adjusting the tip of the
needle so that it does not pierce the contents.
• When sampling approx. 6 mL of gas using the optional “Gas sampling glass tube (model: GS-2)” and you want to
suction the gas while adjusting the needle so that the liquid is not suctioned.
1.
Press
.
The mode switches to the Manual mode.
“M” (MANUAL) is selected.
2.
Press
.
The mode returns to the Auto mode.
<Auto mode>
Progress status bar display
“Locked” display
Hold down for
3 seconds or
longer