Maintenance & Troubleshooti ng
54
Troubleshooting
The following table provides details on potential problems and how to resolve them:
Problem Possible Cause Remedy
Unexpected or "flat line" meas-
urements
Blocked tubing
Run full purge on system. Ensure
washes are built into the SOP playl-
ist.
(as above)
Insufficient fluid in wash bottle,
unit is sampling air only
Refill bottle
(as above) Broken tubing Replace tubing
Flashing LED on front of unit Error
Power off and restart instrument
and software
Sample leakage Poor joint sealing on tubing
Ensure all connectors are hand
tight, replace cracked or visibly
degraded connectors.
Play list will not start, user notified
by software
Communications loss:either dis-
connected USB cable or
NanoSampler unplugged during
measurement
Check if USB cable between
NanoSampler and PC is dis-
connected . Check power supply
connections.
During measurement: SOP Player
stages skipped
(as above) (as above)
Power failure mid-measurement.
NanoSampler stops.
Power supply issues
Restart system, check error mes-
sages in log sheet. Flush system,
restart measurement, ensuring a
wash cycle is first.