Next Advance SP1800 - Manual (Page 56)

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SP1600/1800 Programmable Syringe Pump
Publication #1200-02 51 9/15/04
Pusher block makes a snap or click sound when the pump is started: This is a normal condition.
When the pusher block is manually moved, the drive-nut may not have been fully engaged on the drive
screw. The sound heard is the drive-nut engaging on the drive screw.
Pump doesn’t stop after dispensing a set volume: The pump was previously setup with a multiple
Phase Pumping Program. To simply dispense a fixed volume at a fixed pumping rate, the second Program
Phase must be the ‘Stop’ function. See section 8.1, How to Enter Pumping Programs, for instructions on
changing the Pumping Program.
Pump stops pumping after a period of time: A dispense volume has been set. Verify that the dispense
volume is set to 0.