D-Series Syringe Pumps - Isco

D Series Syringe Pumps
Section 9 Modifier Addition
Note
Flow MUST be established through the system at or before the
time EQUILIBRATE is displayed. To properly equilibrate the
pumps, they must be delivering fluid.
9. Once the message “Running” is displayed, modifier will be
delivered at the selected rate.
9.5.1 Remote Start/Stop The D Series syringe pump RUN/STOP function can be externally
controlled by switch contact closure on TTL input. The
input voltage is 5 volts and is internally pulled high (RUN). The
input is level sensitive and must remain High for RUN and Low
for STOP.
The control wire should be connected to terminal 1 and the
common wire should be connected to digital ground. To use the
remote RUN/STOP feature, first press RUN or force the
Run/Stop pin low and then high to start the pumps. Thereafter,
the Run/Stop pin will control operation. Pressing STOP on the
front panel will override the Run/Stop pin.
9.5.2 External Analog
Control
The pumps can be externally controlled by analog voltage. Two
wires are required for analog control. The analog common or
ground wire should be connected to the GND terminal under
ANALOG INPUT and the analog control signal (or input) should
be connected to terminal 1 under ANALOG INPUT. For more
information, see section 3.7 of the instruction manual.
9.5.3 Serial Control The pumps can be externally controlled with any IBM-PC or
compatible which has RS-232-C serial output. The serial
interface accepts English command words from the computer like
constant pressure, refill, etc. For more information, see Section 6,
Serial Interface.
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