New Era NE-4000 Multi-Phaser Programmable Double Syringe - Manual (Page 32)

New Era Pump Systems Inc.
www.SyringePump.com
Model NE-4000 Multi-Phaser™
Publication #1200-01 27 09/05/14
Phase Function
7 EV:01
Phase Function
8 LP:ST
Phase Function Rate Volume Direction
9 INCR 1.0 0.25 mL Infuse
Phase Function
10 LP:14
Phase Function Rate Volume Direction
11 RATE 25.0 mL/hr 0.0 mL (off) Infuse
8.4.6 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 a NE-4000 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 the Syringe Filled Sensor, the following Pumping Program will
automatically synchronize the dispensing system, and then continue with the normal dispense.
The first 2 Phases set an event trap for the 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 EV:03
Phase Function Rate Volume Direction
2 RATE 1000.0 mL/hr 61 mL Withdraw
Phase Function
3 LP:ST
Phase Function Rate Volume Direction
4 RATE 200.0 mL/hr 5.0 mL Infuse
Phase Function
5 LP:ST
Phase Function
6 LP:ST