Echo Liquid Handler Software 5-35
Compressed air pressure indicator
A pressure sensor inside the Echo liquid handler monitors the user-supplied
compressed air supply.
Green: OK. Air pressure is within specifications.
Red: The user-supplied compressed air is low <552 kPa (<80 psi) or
nonexistent. Check for leaks, disconnections, or for the air pressure turned
off at the source.
Vacuum supply pressure indicator
A pressure sensor monitors the user-supplied vacuum supply line pressure
inside the Echo liquid handler.
Green: OK. Vacuum pressure is within specifications.
Red: The user-supplied vacuum pressure is low <78 kPa (<15 in Hg Vac) or
nonexistent. Check for leaks, disconnections, or for the vacuum turned off
at the source.
Coupling fluid indicator
A sensor monitors the level of coupling fluid in its bottle.
Green: OK. Coupling fluid is above the minimum required level.
Yellow: The coupling fluid bottle level is low (<250 mL).
Note: When the coupling fluid falls below its recommended minimum
level, bubbles may be introduced into the coupling fluid, reducing the
accuracy or precision of source plate surveys and liquid transfers.
Labcyte recommends refilling the coupling fluid bottle as soon as
possible (see “Refill the coupling fluid bottle” on page 6-8).
Waste bottle indicator
A sensor monitors the level of waste fluid in its bottle.
Green: OK. The waste fluid bottle does not need emptying.
Red: The waste bottle is full. Empty the waste bottle (see “Empty and clean
the waste water bottle” on page 6-13).
Note: Newer systems do not use the waste bottle.
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