Riken Keiki 04 Series User manual

MODEL 04 Series CONDENSED USER GUIDE
Note : Regarding detail, refer to instruction manual.
1. How to start the gas monitor
Keep the POWER button pressed for three seconds or more. After the various information is
displayed one by one, you will hear two beeps and then the detection mode is ready.
2. Preparation for start-up
2-1.Check the battery level
After the measurement screen is appeared, check the remaining battery level icon.
If the remaining battery level is one or blinking, replace the batteries*.
*Refer to "5. Replacing the batteries".
：Sufficient
：Low
：Needs charging
If the battery level further drops, the battery icon starts blinking.
2-2.Check the filter
Please confirm that the dust filter attached to the sensor part
at the upper right of the instrument is not dirty or clogged.
If the filter is dirty, please replace it.
*For more details how to replace the filter, please refer to
the instruction manual.
WARNING
：
If the filter is dirty or clogged, detection may not be performed accurately.
PT0E-2000
How to use
Sensor part
Battery level icon
Since the operating procedures for 04 Series are similar,
this document will be based on CO-04.
1. Alarm lamp
2. Buzzer sound
opening
3. LCD display
4. AIR button
5. POWER/MODE button
1. The red lamp blinks in response to an
alarm.
2. Windows for operation and alarm sound.
3. Display the gas concentration and so on.
4. Perform the air calibration in measuring
mode.
5. Turn on/off power.
Names for each part

MODEL 04 Series CONDENSED USER GUIDE
Note : Regarding detail, refer to instruction manual.
How to use
3. Air calibration
Perform an air calibration before measuring the gas concentration.
Press and hold the Air button. Release it after the display shows “RELEASE” below When the
zero adjustment is successfully completed, and the reading value turns to zero (20.9% for O2).
If this operation is completed and the display shows the measurement screen, detection can
be performed.
WARNING
：
If you do not carry out the process in fresh air, calibration would not be
completed properly. This exposes you to danger when a gas leaks.
4. How to exit
Make the gas monitor draw in fresh air. After the display returns to zero (or 20.9vol% for
oxygen), keep the POWER button pressed until the power is turned off.
5. Replacing the batteries
Turn off the power, loosen the battery lid
fixing screw with a flat head screwdriver,
and open the battery lid.
If the belt clip is installed, open the belt clip.
Remove the old batteries and insert a new
one, taking care to note the polarity* of the
batteries.
*The polarity of the battery is marked on
the inside of the unit.
Close the battery lid and tighten the battery
lid fixing screw with a flat head screwdriver.
WARNING
：
Please charge or replace batteries in non-hazardous areas.
Battery cover
Battery cover retaining screw
Battery cover
Belt clip
[+] end
[+] end
Push the battery toward
the [−] end.
Lift the battery out.