Note: If the Emergency Motion Off switch is used, if you have a protocol running, it may be interrupted and may need to
be restarted.
When to use the Emergency Off switch:
l Any time the safety of the operator is in question.
l Any time strange, loud, or potentially damaging noises are coming out of the Echo Liquid Handler.
l When the instrument door will not open, and the source or destination plate gripper stages collide with the door.
l If water is leaking from the Echo Liquid Handler.
l In any other situation that suggests immediate shutdown of the Echo Liquid Handler is appropriate.
When the Emergency Off switch is used, the following actions are performed:
l All motors are disabled.
l The coupling fluid pump is turned off.
l All pneumatic actuators are sent to their default positions.
l The anti-static bars are turned off.
l All RF devices (RF power supply, RF amplifier, RF switch, and so on) are turned off.
l The HV grid is turned off.
l The internal controller aborts all processes in progress, returns an error to the system invoking the aborted process,
designates the three stages as not calibrated, and goes into a halted state.
Activating the Emergency Off switch does not turn off the following:
l Internal Echo Liquid Handler controller
l AC power inside the Echo Liquid Handler power distribution panel
l Internal 24 VDC power supply (power output, however, is interrupted)
l External communications (Ethernet, USB)
l Coupling fluid chiller
Recovering from an EMO shutdown
If the Emergency Off switch has been used to shutdown the Echo Liquid Handler, use the following procedure to start up again:
1. Determine and resolve the original problem.
2. Turn the Echo Liquid Handler back on by twisting the Emergency Off switch clockwise. It will pop out to its normal
operating position.
When the Emergency Off switch is returned to its normal position, power is then supplied to most internal systems and most
internal mechanisms are enabled. The Echo Liquid Handler stage motors are not automatically enabled. The operator must
explicitly command a stage homing procedure. For more information , see Motion Calibration.
Note: If you cannot determine the original problem, or you cannot correct the problem, you must arrange for a Labcyte
field engineer to restore your Echo Liquid Handler to normal use.
35 PN | 001-11665
USER GUIDE | Echo® 525 Liquid Handler User Guide Component Description
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