New Era CBL-DUAL-3 RS-232 Dual pumps communications cable (3) - Manual (Page 9)

9
Setup:
On the Master pump only – DO NOT change default settings on the second pump.
1)
Attach the dual pump cable, CBL-DUAL-3, to the “To Computer” port on both pumps.
2)
Select Gradient communications mode:
From the Setup menu (Press and hold “Diameter / Setup” key), select Gradient
communications Mode (displayed as Grad). When Ad:00 (or other communications
mode) is displayed, use the left-most arrow key to select.
3)
Set the syringe diameter.
4)
Enter a Linear function pumping program as a 2 Phase Pumping Program:
Phase 1: Linear function starting rate, and [hours:minutes] portion of pumping time.
Phase 2: Linear function ending rate, and [seconds:tenths] portion of pumping time.
Note: The secondary pump is set to the default communications settings of Address 0 and
19,200 baud rate.
Operation
When the Master pump is started, the Linear function will be expanded to a 5 Phase Pumping
program representing the forward and inverse of the linear function, then repeat. The second
pump will then be programmed with the syringe diameter and the inverse of the linear pumping
program. The Second pump will start pumping when the Master pump starts pumping.
With the starting and ending pumping rates reversed on the secondary pump, the sum of the flow
rates of the two pumps will be virtually constant.
Note: The linear function updates the pumping rate every 100 ms, resulting in a synchronization
error of up to 100 ms between the two pumps. This will cause a slight difference in the total
volumes dispensed between the two pumps.
Default Gradient Pumping Program
To load the default program: On the Master pump, while turning on power, press and hold the
“Volume”/”Program Function” key until [Cont] is displayed, then use any up arrow key until
[GrAd] is displayed. Press the “Volume” key again to enter the selection.
Default Gradient Mode Pumping Parameters
Phase # Function Rate Time
1
Linr
(Linear) Starting
Rate 0.000 mL/hr 00 : 01 Hours : Minutes
2
Linr
(Linear) Ending
Rate 500.0 mL/hr 00 : 00 Seconds :
1/10 Seconds
3 Stop
RS-232 Communications Address Mode set to Gradient: [GrAd]
Assumes a syringe diameter of at least 14.43 mm.