Maintenance; Troubleshooting - RESTEK 22655 Manuel D'utilisation

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8.0 Maintenance

Avoid spilling liquids onto the unit or it may malfunction. If a liquid is spilled onto the unit, turn off
the power immediately, remove heavy liquids with a dry towel, and let the unit sit until the liquid
dries. Dust and debris can enter the probe tip of the leak detector and, over time, can clog the small-
bore tubing inside the unit. To prevent this, clean the probe tip periodically. To clean the probe tip,
unscrew the cap to expose the brush (Figures 2 and 3). Gently clean the probe using a small brush or
your fingers to remove dust and debris, then replace the cap. Do not use liquids to clean the probe.
Liquids can damage the leak detector if drawn in through the probe.
Information on where to have the unit sent for maintenance or service* is listed at the end of this
document.

9.0 Troubleshooting

Problem
Sensitivity decreased
Response decreased
LED bar graph stays lit during operation
Does not power up
*Contact Restek or your Restek representative for return instructions for servicing a damaged unit. Additional charges may apply if the warranty has expired or the unit is damaged due to misuse.
www.restek.com
Possible Cause
Probe clogged
Probe line punctured
Detector not zeroed
Detector re-zeroed before unit was purged out
Reference gas inlet covered by hand or other object
Batteries need to be charged
- 6 -
Figure 2:
Figure 3:
Cap unscrewed
Cap removed,
exposing probe tip
and partially
brush for cleaning.
removed.
Suggested Solution
Clean the probe tip to remove any debris
Visually inspect probe line for holes*
Re-zero detector
Allow adequate time for detector to purge, then re-zero
Remove obstruction
Charge unit

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