User`s guide

PHD ULTRA
Display Error Messages
M
otor Stalled
This indicates that the pusher block travel has been impeded. This may be caused by the syringe plunger
h
itting bottom, a kink in the tubing (occlusion), syringe plunger binding or any situation requiring more
force to the head of the syringe than the pump is capable of delivering. To restart the pump, remove the
cause of stalling and/or increase the force setting, then press RUN. The pump will continue the interrupted
procedure where it stopped.
Out of Range
A value was entered or encountered in a pump program that was beyond the pump’s limits.
Power Failure Notification
If power to the pump is interrupted during operation, an alarm will sound to alert the user to the
interruption. When power is restored, an onscreen message is displayed to indicate the interruption.
Figure 97: The PHD ULTRA
Pump will notify you of a power failure with a message when power is restored.
Low Battery Indication
Time/Date area will turn red when battery is low. [See page 111 for instructions on changing the battery.]
Figure 98: The Time/Date area turns red when the battery is low.
Harvard Apparatus PHD ULTRA
Syringe Pump Series User's Manual
Publication 5419-002-Rev-A
114
A
ppendices