Maintenance; Troubleshooting - ThermoFisher Scientific GLD PRO Manuel D'utilisation

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 smallbore 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.
Figure 2 – Cap unscrewed and partially
removed

9.0 Troubleshooting

Problem
Sensitivity decreased
Response decreased
LED bar graph stays lit
during operation
Does not power up
*Contact Thermo Fisher Scientific or your local 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.
8
Figure 3 – Cap removed, exposing probe tip
brush for cleaning.
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
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