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5. MAINTENANCE AND CHECK
Perform following checks to maintain the reliability and correct functions.
5-1. Daily check
Check that unit housing, display, switches and lights are not dirty or damaged. Also check
battery voltage, actions of buzzer, lights and vibration when turning power on.
5-2. AIR calibration (Fresh air adjustment)
Perform AIR calibration after power on. Also perform AIR calibration in fresh atmosphere if
O2 reading is not 20.9%. (See section 3-2)
5-3. Replacing batteries
Replace the battery if battery voltage decreases during operation. (See section 2-1)
5-4. Gas calibration
It is required to perform gas calibration at minimum every 6 months. To calibrate the unit,
you will need the calibration kit. Ask our authorized agent for gas calibration kit.
6. SCRAP THE PRODUCT
As a harmful substances or materials for environment are not used in this unit itself, treat it
as industrial waste (Non-flammable material) according to the local rule. Regarding the
oxygen sensor, contact our nearest agent or RIKEN KEIKI CO., LTD.
If you find abnormality to this unit, contact our authorized agent.
WARNING
