New Era NE-9000 Series Programmable Peristaltic - Manual (Page 25)

New Era Pump Systems Inc.
www.SyringePump.com
Model NE-9000
Publication #1200-04 17
7.4 Operating the Pump
When the “Start/Stop” key is pressed, the Pumping Program begins to operate. In Dispense Mode, the
currently selected dispense will begin. If Dispense mode is off, the Pumping Program will begin, starting
with Phase 1. If the current Program Phase specifies a pumping rate, the pump will begin pumping, and
the ‘Pumping’ LED will be lit.
The pumping direction will depend on the selected direction. The display will show the “Volume
Dispensed” with a volume units LED (‘mL’ or ‘Oz’) and the ‘Dispensed’ LED lit.
While pumping, the pump will pump continuously in the current Program Phase, unless a “Volume to be
Dispensed” is set, or an Event trigger is set. If a “Volume to be Dispensed” is set, the Program Phase will
be complete after the set volume has been dispensed or withdrawn, measured from the start of the Phase.
Pressing the ‘Volume’ or ‘Diameter’ keys will display the current “Volume to be Dispensed” or the
diameter setting while the key is held.
7.5 Prime and Purging
To prime/purge, with the Pump stopped, press and hold the 'Start/Stop' key. The Pump will start, then,
after one second, prime/purge will begin. The pump will pump at its top speed in the currently set
direction. Purging will continue until the 'Start/Stop' key is released. Then the pump will stop. While
purging the display will show: .
7.6 Changing the Pumping Rate and Direction While Pumping
Except with some complex Pumping Programs, the pumping rate can be changed while the pump is
operating. To change the pumping rate, momentarily press the ‘Rate’ key. While the pumping rate is
displayed, press the up arrow keys to change the rate. The rate units will blink while the rate is being
changed. If the up arrow keys are not pressed, the display will return to the “Volume Dispensed” display
after a 2 second delay. Rate units cannot be changed while pumping.
The new rate is stored after a 2 second delay or by pressing a non-arrow key. If the new rate is within the
operating range of the pump, the display will blink and the new rate will be stored in the current Program
Phase and the pump begins pumping at the new rate. If the new rate is out of the operating range of the
pump, the display will show
nn
. Pressing any key clears the error message.
The pumping direction can be changed while pumping if the “Volume to be Dispensed” is 0.0 (off).
Pressing the direction key will immediately change the pumping direction and store the pumping direction
in the current Program Phase. Also changing the pumping direction changes the accumulated “Volume
Dispensed” according to the new pumping direction.
7.7 Volume Dispensed
While pumping, the display will show the total accumulated volume pumped with the ‘mL’ or ‘Oz’ LED
lit and the ‘Dispensed’ LED lit. Volume is computed based upon the inside diameter setting.
The volume is accumulated separately for dispense and withdrawal. When the pump changes direction,
the “Volume Dispensed” changes to the accumulated volume for the current pumping direction.
The “Volume Dispensed” accumulations, for dispense and withdrawal, are reset to 0 when:
A) Pressing and holding any arrow key while displaying the “Volume Dispensed”.
B) A sub-program is selected when the Pumping Program executes a Program Selection
function.
C) The diameter is changed.
D) From the RS-232 clear “Volume Dispensed” command (CLD).
E) The accumulated Volume Dispensed rolls over from 9999 to 0.