6-4 Echo Liquid Handler User Manual
The following table lists the normal maintenance alerts that a user would
see, as well as the respective corrective procedures. To see a list of other
factors that can trigger a Warning or Fault light, see Chapter 7, “
Contact
Information and Troubleshooting”.
Table 6.2. Echo Maintenance Alerts
Maintenance Alert/Cause Procedure
Warning light is yellow.
• The fluid level is low in the
coupling fluid bottle.
Add more fluid.
See “
Refill the coupling fluid bottle”
on page 6-8.
• The coupling fluid temperature is
outside of the normal range:
21.2°C–23.0°C.
Check the chiller setting, it should be
at 22°C. See “
Coupling fluid
temperature and indicator” on
page 5-36.
• The waste bottle is full (older Echo
systems only).
Empty the waste water bottle.
See “
Empty and clean the waste water
bottle” on page 6-13.
Fault light is red.
• The user-supplied compressed air
supply is low (< 70 PSI) or
nonexistent.
Increase air pressure. See “
Compressed
air pressure indicator” on page 5-35.
• The coupling fluid temperature is
outside of the warning range:
20.2°C – 24.0°C.
Check the chiller setting, it should be
at 22°C. See “
Coupling fluid
temperature and indicator” on
page 5-36.
• The user-supplied vacuum
pressure is low (< 15 in. Hg Vac)
or nonexistent.
Increase vacuum pressure.
See “
Vacuum supply pressure
indicator” on page 5-35.
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