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1.4 OUTLOOK OF THE INSTRUEMENT
1.5 INTRODUCTIONS
The AS8901 Oxygen gas monitor is a portable and handheld
instrument that is capable to use continuously and
simultaneously monitoring Oxygen, the gas readings a shows
in one LCD display. The unit also provide user to configure high
and low alarm.The unit will be audio and visual alarm once the
alarm condition is exceeded.
* The AS8930 external sampling pump is available to work
with all AS8901 series gas monitor but no exclude in any
unit pack.
* This pump mount into the AS8901 unit by 2 fasten screws.
Please review to the assembly drawing attached.
2.8 ACCESSORY AS8930 SAMPLING PUMP
%
Need
T
o
Know
Before
Use
9. If it shows F , it means the
calibration is failed, need to
recalibrate again.
10.If no standard gas is used, please
do not enter to this instrument
calibration mode, for the pre-set
value will be easy to be deleted.
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、
OPERATION MANUAL
2.1 INSTRUMENTS OPERATION
1. To turn on the instrument AS8901, please depress and
hold the
button for over 1 second, the unit will be
turn on with a beep sound and vibration, then the lcd
will light up all icon and segments. Once the software
countdown for 18 seconds then the unit will enter into
the Gas Monitoring mode.
2. for to turn off the unit, please depress and hold the
button for over 3 seconds, then the unit will be power
off after 3 beep sounds.
3. for to light up or turn off the backlight of the LCD
display, please depress the
button.
2.2 Oxygen Monitoring mode
1. once the unit is power on, the
display will show oxygen gas
symbol with readings.
2. then the unit is already started to
continuously monitored and shows
the readings on the LCD display.
Once the gas level is increase, the
corresponding read will be showed
the existing gas concentration.
3. Also the battery life indicator is also display in the left
upper corner, onr the battery lift is decreased, the shaded
showed of the battery icon is alco decreased.
4. Once the gas concentration is exceed the high or low
alarm limit , the unit will be triggered the audio and visual
alarm with vibration.
2.7 INSTRUMENT CALIBRATION MODE
%
Operation
Explanations
1. This is the final setting mode for
zero/calibration mode.
2. The user wants to enter this mode
with correct security code.
3. The unit could be easy to calibrate
by using a cylinder of a standard
gas.
4. To enter in this mode, to press both
button of
and
in normal gas
monitoring mode, and key in the
correct security code to enter in this
calibration mode.
5. To press
button 4 times, then will
enter to this instrument calibration
mode. In this mode the display
shows
and
icons, press
button again for start the calibration
with the icon cylinder is flashing.
6. Please make sure the unit is
connected with the gas cylinder
firmly before the cylinder icon
flashing for 6 seconds.
7. Then to press the
button, the
display will shows cylinder and
clock with the calibrating value.
8. If the calibration is succeeded, the
dispay will shows P icon represent
pass.
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