Troubleshooting and Test Functions 3
1100 Series WS MWS Reference Manual 65
Leak
A leak was detected in the sampler.
The signals from the two temperature sensors (leak sensor and
board-mounted temperature-compensation sensor) are used by the leak
algorithm to determine whether a leak is present. When a leak occurs, the leak
sensor is cooled by the solvent. This changes the resistance of the leak sensor
which is sensed by the leak-sensor circuit on the MTP board.
Probable Causes
• Loose fittings.
• Broken capillary.
• Leaking rotor seal or needle seat.
• Defective metering seal.
Suggested Actions
✔ Ensure all fittings are tight.
✔ Exchange defective capillaries.
✔ Exchange the rotor seal or seat capillary.
✔ Exchange the metering seal.
NOTE
Make sure the leak sensor is thoroughly dry before restarting the well-plate sampler.
NOTE
Crossflow caused by a leaky rotor seal may cause a spill over of seat in bypass position of
valve.
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