Bioptechs P720 User Manual
Model P720 Peristaltic Pump
Operation Manual
NOTE: This pump is a laboratory device. It is not
Instech Laboratories, Inc. cannot assume liability from i m proper use of its products.
not intended for use on humans.
notnot
Instech’s Model P720 pump is a full-featured, miniature peristaltic
pump designed specifically for low flow laboratory applications.
Instech’s wide variety of pump tube sets let you configure this
pump to run at flow rates from 0.2 to 180 ml/hr, to work with a
variety of solutions, and to pump in single or dual channel mode.
The Model P720 can operate as a stand-alone pump or as an element in closed loop control applications using the external speed
control input. The pump has an internal battery that will operate
the pump continuously for up to 30 hours if the power should fail
or if you just want to move the pump around your lab without
turning it off.
This pump’s circuitry has been designed to minimize electromagnetic radiation, making it ideal for use near sensitive microelectrodes. For quietest operation, run the pump using the internal
battery.
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Set-up
Check for signs of shipping damage. You should have received:
1 ....Model P720 pump
1 ....Wall mounted 9V DC power adapter
2 ....Pump tube sets (of your choice)
1. ...9V lithium battery
1 ....3.5mm stereo jack (for external speed control)
Monitor output and external analog control input –
Motor run/stop
use stereo jack for co n nection
Pump runs at full speed
while pressed
Fine
eed
s
Coarse speed
trol
Input for 9VDC power adapter
(does not charge battery)
Model P720 pump controls
Speed source selector
(set to INT for normal use)
Power on/off (Red LED
on pump head indicates
ower on
Battery Installation
1. Place POWER switch in off position (out).
2. Remove screw holding access cover on underside of pump and
remove plate.
3. Withdraw connector and attach to battery terminals. A lith-
ium U9VL is preferred due to its long shelf life and higher capacity (about twice the operating time as an alkaline)
although an alkaline will suffice.
4. Make sure that the removal ribbon is below the battery.
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5. Place the battery into the compartment and replace access
plate.
Testing Battery Backup Operation
1. Place speed source selector in INTernal position.
2. With no external adapter attached, turn on POWER switch
and check pump end for illumination of red LED.
3. Press PURGE. The rotor should turn at full speed.
4. Set speed to some value other than zero and turn on motor by
pressing the RUN/STOP button.
5. While motor is running, check that the amber LOW BAT-
TERY LED has not come on (battery voltage below 7.5V); if
so, replace battery.
Pump Tube Installation
1. Slip the tubular portions extending from the bottom of the
connector blocks into the mounting holes with the silicone
tube just above the rotor.
2. Actuate the rotor, using the PURGE button, while guiding the
tubing down and around the rotor with your finger (see figure
below).
3. Press in both connectors so that they align with the square
depressions in the pump.
4. Again press PURGE button to check that the tube has been
correctly installed and that the amber Kapton tape has not
been displaced. There will be slack in the tape as the rotor
turns; this is normal.
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