D-Series Syringe Pumps - Isco
D-Series Syringe Pumps - Isco
D-Series Syringe Pumps - Isco
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D <strong>Series</strong> <strong>Syringe</strong> <strong>Pumps</strong><br />
Section 3 Single & Multiple Independent Pump Operation<br />
Note<br />
If you make an error, press the CLEAR ENTRY key to delete<br />
your last keystroke. Each time you depress the CLEAR ENTRY<br />
key, you will delete back a character.<br />
4. Press the ENTER key once the desired pressure is displayed.<br />
5. Press the RUN key to initiate pump operation.<br />
3.7 External Control The pump can be externally controlled for pressure or flow rate<br />
operation with an analog voltage or through the serial interface.<br />
Controlling the pump with an analog voltage is discussed in<br />
section 3.3.8.<br />
The serial interface allows you to control the pump operation<br />
from an IBM-PC or compatible computer which has an RS-232-C<br />
serial output. The serial interface accepts English command<br />
words from the computer, like constant pressure, refill, etc. For<br />
more information see Section 6, Serial Interface.<br />
3.8 Remote RUN/STOP The D series syringe pump RUN/STOP function can be externally<br />
controlled by a switch contact closure or TTL input. The<br />
input voltage is 5 volts and is internally pulled high (RUN). The<br />
input is level sensitive (must remain high for RUN or low for<br />
STOP) and must be high for normal operation of serial (RS-232)<br />
control.<br />
To use the remote RUN/STOP feature, first press RUN or force<br />
the RUN/STOP pin low to enable the pump. Thereafter the<br />
RUN/STOP pin will control operation. Pressing STOP on the<br />
front panel will override the RUN/STOP pin.<br />
3.8.1 Wire Connections Two wires are required for external RUN/STOP control. The<br />
digital common or ground wire should be connected to one of the<br />
four DIGITAL GROUND terminals of the ACCESSORY connector<br />
on the controller rear panel. The control wire should be<br />
connected to terminal 1, under DIGITAL INPUT. If an electrically<br />
isolated relay is used, one relay terminal should be connected<br />
to digital ground and the other to terminal 1, under<br />
DIGITAL INPUT.<br />
If two pumps are used with the controller, the second control wire<br />
should be connected to terminal 2, under DIGITAL INPUT.<br />
If three pumps are used with the controller, the third control wire<br />
should be connected to terminal 3, under DIGITAL INPUT or to<br />
auxiliary (P11) pin 17.<br />
3.9 Analog Flow Rate and<br />
Volume Output Option<br />
The purpose of the analog output option (P/N 68-1247-070) is to<br />
provide for analog monitoring of the syringe pump flow rate. If<br />
two or less pump modules are connected to the controller, pump<br />
volume delivered can also be monitored via the analog output.<br />
These outputs are often used with analog based plant or process<br />
monitoring equipment.<br />
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