Next Advance SP1800 - Manual (Page 24)

NEXT>>>ADVANCE www.nextadvance.com
SP1600/1800 Programmable Syringe Pump
Publication #1200-02 19 9/15/04
8. Pumping Program
A Pumping Program is simply a pre-defined sequence of actions, or functions, which guarantees
consistent and precise operation of the pump, automatically and with or without any user intervention. A
Pumping Program can be as simple as continuous pumping at a fixed infusion rate. Or a Pumping
Programs could consist of a pumping rate and direction of pumping for a specified volume, then switch to
another pumping rate. Also a Program can interact with external devices through the TTL I/O connector,
make decisions, or stop pumping for a period of time.
Programs are broken into individual operations called Phases. Each Phase consists of a function that can
be a control function or pumping function. A pumping function, such as ‘RATE’, consists of a pumping
rate, optional “Volume to be Dispensed”, and the pumping direction.
Complex dispensing systems can be designed, involving multiple liquids, each dispensed from a different
pump, plus other equipment and sensors. Pumping Programs can be designed for each pump which
enable multiple pumps to synchronize with each other, and the other equipment and sensors, using a cable
connected to the TTL I/O connectors of each pump.
When the Pumping Program is started, either from the keypad, TTL I/O connector, or from RS-232, the
Pumping Program will begin with Phase 1 of the Program. After the completion of each Phase, the pump
will immediately start the next consecutive Phase. This linear sequence of Phases can be altered by
certain functions that direct the Pumping Program to continue operation with a different Phase number.
Some functions can change the order of operation conditionally based on external events.
8.1 How to Enter Pumping Programs
Start by organizing your pumping requirements into specific actions and conditions that can then be
programmed into Phases. For more advance programming methods, common groups of Phases can be
grouped together and repeated multiple times using looping and jump functions.
The current values of the pumping rate, optional “Volume to be Dispensed”, and pumping direction, all
refer to the currently selected Phase. To display or change the currently selected Phase, enter “Program
Entry Mode” by pressing and holding the ‘Rate’/’Program Phase #’ key until the current Phase number is
displayed. The display will show , where ‘01’ refers to Phase 1. The pump will now be in
“Program Entry Mode”. If the current Phase is not 1, press and hold the ‘Rate’/’Program Phase #’ key
until the display is as shown. The pump will now be in Phase 1.
When in “Program Entry Mode”, with the display showing the Program Phase number, pressing the
‘Volume’/’Program Function’ key will display the current “Program Function” for this Phase. If the
current function is ‘RATE’, then a pumping infusion or withdrawal can be setup for this Phase.
To change the “Program Function” selected, use the arrow keys to scroll through the functions until the
required function is displayed. If the function has an associated parameter, enter the parameter after the
function has been stored.
Momentarily pressing the ‘Volume’/’Program Function’ key again will exit “Program Entry Mode” and
display the “Volume to be Dispensed.” The pumping rate data, which includes the pumping rate,
“Volume to be Dispensed” and pumping direction, can now be setup as previously described.
When finished setting up the pumping rate data for the current Phase, enter “Program Entry Mode” again
to select the next Program Phase. Press and hold the ‘Rate’/’Program Phase #’ key until the Phase number
is displayed. Then use the arrow keys to set the Phase number to the next Phase to be setup. Pressing the
right-most arrow once will set the Phase to Phase 2. Now all pumping data will refer to Phase 2. The
second Phase can now be setup as described above for Phase 1.
Continue selecting Phase numbers and entering the infusion or control setup for each Phase of the
Pumping Program. The entire Pumping Program will be stored in non-volatile memory.
Use the ‘STOP’ function to stop the pump and end the Pumping Program. If the Pumping Program does
not operate the pump continuously, the last Phase of the Pumping Program must be a ‘STOP’ function
(unless the last Phase number is the maximum Phase number).