SK-8402
取扱説明書（英文）
_P6
6
OPERATING PRECAUTIONS
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SK-8402 is the O2 Sensor Checker for the O2 sensor of Zirconia, Titania 1V and Titania 5V. SK-8402 can not check
deterioration judgment of A/F (air-fuel ratio) Sensor or Rear O2 Sensor.
●
Check object of this instrument is O2 sensor unit only. If the other parts are defective, engine trouble might not be
solved even if the O2 sensor is replaced.
●
To obtain the stable measurement, keeping the engine speed at approx. 2,500rpm for 3 to 4 minutes to warm up the O2
sensor is necessary. When measuring the car without tachometer, estimate the engine speed by its sound. Keeping the
constant engine speed at approx. 2,500rpm is also necessary during the normal test mode.
●
Scanning tool which can live monitor of ECU control is required to check ECU in simulation test.
●
Error code is memorized in Engine Control Unit (ECU) when taking off the connector of O2 sensor with the ignition key
switch is activated and the engine is running. Error code must be deleted by using the Code Reader or equivalent tool
to prevent any engine troubles.
●
Do not apply any oil to Input Terminal, Test Lead, Check Harness, Alligator Clip or metal part of Test Pin to prevent
contact failure.
●
Do not polish the case with the fluid that contains alcohol to prevent the cracking.
●
Use this instrument under the environment of 0
℃
to 40
℃
, 80
％
RH or less to obtain the accurate measurement.
●
Test Lead or Check Harness that coating are heat damaged might cause the short circuit. Do not use them and replace
into the new ones.
●
Measurement by using the Test Pin might weaken the waterproof property of the connectors of O2 sensor and ECU.
Wrap heat-resistance/waterproof tape around them after taking the measurement.
●
Remove the batteries when the instrument is out of use for a long time. The exhaust battery might leak electrolyte and
corrode the inside.
