110 9 Troubleshooting
3.3 ERROR 3 Test Pressure Error
Timing: Test pressure too low: At the end of Pressurization (CHG)
Test pressure too high: Always monitored
Precharge pressure too low: At the end of Precharge (PCHG)
Precharge pressure too high: Always monitored
Test pressure exceeds upper or lower limit in CHG or PCHG stage.
Zero “0” was set to the Lower Limit.
Set other numerical value than “0” to the Lower Limit.
Upper and Lower limits for Test pressure or
Precharge are too low.
Set larger limits.
For test pressure limits:
Go to: Settings > Advanced Settings > Test Press
> Upper Press Limit / Lower Press Limit
For Precharge limits:
Go to: Settings > Advanced Settings > CHG Support
> Precharge Upper Limit / Precharge Lower Limit
Pressurization time is insufficient.
(Test pressure too low)
Extend CHG timer.
Go to: Settings > Advanced Settings > Timer > Charge (CHG)
Precharge time is insufficient.
(Precharge pressure too low)
Extend PCHG timer.
Go to: Settings > Advanced Settings > CHG Options
Fluctuation or a drop in the source pressure Check the source pressure or the regulator setting.
Avoid using air tools branching off the pressure source of the LS-R700 to
supply an stable air.
Setting up a dedicated pressure source for the LS-R700 is recommended.
Leaks from seals, part and fittings
Check the seals, part and fittings for possible leaks.
Malfunction of the test pressure sensor (PS)
Contact Cosmo for repair.
Output Signal Timing Chart
PIN#
Function TYPE WAIT DL1 PCHK
PCHG
PEXH
CHG BLW EXH END WAIT
▼ ▼ At the end of PCHG or CHG
When the error occurred in PCHG, stages only in grey are applicable
but when it occurred in CHG stage, the stages in shadowed are also
applicable as well.
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