23
23
Programmable Option– Menu Operation
(Continued)
5)
Rate (Continued)
c)
Options:
1)
if R1=R2=0
The pump is stopped, no flowrate.
2)
if R1<R2
Flowrate increases LINEARLY from R1 to R2 over
the step time.
3)
if R1>R2
Flowrate decreases LINEARLY from R1 to R2 over
the step time.
6)
PIN OUT
TTL Output pins can be controlled to set the levels high (H) or low (L) during the step.
This change in status of an output pin can be used to trigger another external event.
Pins 1 and 6 on the 9-pin TTL connector can be controlled in the program.
The display reads: # Pinout: 1 = H, 6 = H
Options: HH, HL, LH, LL
The arrow keys are used to toggle through the options. Select and Enter are used to
save the settings.
7)
Pause
If the Pause option is selected in a step, the pump completes the step and pauses at the
end of the step.
The display reads:
Paused @ end of n
where n is the step number
The pump is programmed but stopped, waiting to be actuated, either by:
a)
Run/Stop key
b)
“RUN” command via RS232
c)
TTL input, Pin 8; level change from High to Low.
The display reads:
# Paused: Inactive Active
Use arrow key and SELECT to save.
8)
Loop
A loop permits the program to return to and execute a previous step, or steps and
repeat these steps a specified number of times (up to 100).
The menu first prompts for a loop selection:
# Loop?: Yes No
Loop selection is made using the arrow keys to move to Yes or No. SELECT to save.
a)
LOOP to STEP
The menu now prompts for the Step # the program Loop should return to. For
example, if the program is at step 5 and the loop step selected is #3, then
the program executes step 3, 4 and 5 again.
Cole-Parmer
®
Dual & Multiple Syringe Pump
