Owner's manual

NEXT>>>ADVANCE www.nextadvance.com SP500 series OEM Programmable Syringe Pump
NE500 series manual 19 Revision 101101
7.4.6 Example 6: Automated Dispensing with Synchronization
'Power Failure
Mode' Pumping
Program Restart
at Power Up
Syringe
Refill
Event Trigger
from
Syringe Filled Sensor:
Jump to Phase 3
5:00:00 5:00:00
5:00:00
5:00:00 5:00:00
    
Restart Pumping Program
The following is an automated dispensing Program for anSP500series syringe pump equipped with a
‘Syringe Filled Sensor’ attached to the TTL I/O connector, and a valve system to refill the syringe from a
reservoir. It is also assumed that the ‘Power Failure’ mode is enabled.
After a power fail restart, the pusher block is in an unknown position, making it impossible for an
automated dispensing system to regain synchronization. With a Syringe Filled Sensor, the following
Pumping Program will automatically synchronize the dispensing system, then continue with the normal
dispense.
The first 2 Phases set an event trap for a Syringe Filled Sensor and refills the syringe until the sensor is
triggered. When the sensor triggers the event, the pump’s pusher block will be synchronized with the
Pumping Program. It is assumed that the sensor is positioned to refill the syringe with 60 ml. A withdraw
volume of 61 ml is set as a safety feature.
After the syringe is refilled, one 5 ml dispense is made every 5 hours. After 12 dispenses, the syringe is
refilled using the sensor again.
Phase Function
1
EVN 03
Phase Function Rate Volume Direction
2
RAT 1000.0 ml/hr 61 ml Withdraw
Phase Function
3
LPS
Phase Function Rate Volume Direction
4
RAT 200.0 ml/hr 5.0 ml Infuse
Phase Function
5
LPS
Phase Function
6
LPS
Phase Function
7
PAS 60
Phase Function
8
L0P 60
Phase Function
9
LOP 05
Phase Function
10
LOP 12