SK-8402
取扱説明書（英文）
_P31
31
NORMAL TEST
mV
DH
RICH
TEST
Z
APO
Display hold
Available functions
●
Press TEST Key for 1 second or less.
RICH
→
LEAN
→
AVG
→
Cycle
→
AUTO
→
RICH
Display mode changing
※
In AUTO, display is changed automatically at
3 seconds intervals. (RICH
→
LEAN
→
AVG
→
RICH)
Check point
●
RICH voltage drops down when O2 sensor
deteriorates.
●
LEAN voltage changes upper and lower than
the standard LEAN voltage, and cycling speed
decreases.
●
O2 sensor may be deteriorated if bar graph
blinks with extremely low RICH, LEAN and
AVG voltages and no cycle measurement.
●
When measuring A/F sensor or rear O2 sensor,
RICH, LEAN and AVG voltages becomes
almost the same. Cycle cannot be measured.
●
Press SEL Key for 1 second or less during the
normal test to hold the display. ( lights up)
To release it : Press SEL Key again for 1 second
or more. ( is disappeared)
Display hold
DH
DH
※
Display mode can be changed in display hold function.
⑩
Press TEST Key for 2 seconds or more to finish
normal test.
⑪
Stop the engine and turn off the ignition key switch.
⑫
Press POWER Key for 1 second or more to turn off
the instrument.
⑬
Remove check harness and test lead from the
connecting couplers of O2 sensor and ECU.
⑭
Fix the connection of the connecting couplers of O2
sensor and ECU and finish the normal test.
Display mode
changing
