parr 4520, Operating Instructions Manual, Page: 7 / 32

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4520 Bench Top Reactors
Parr Instrument Company
ASSEMBLE THE REACTOR
These reactors require at least 10 sq. ft.
of workspace in a well-ventilated area with
convenient access to an electric outlet,
running water, air and a drain.
1.
Set the Temperature Controller near the
reactor, leaving a space of at least six
inches between the controller and the
base of the reactor so that the controller
will not be unduly affected by radiant
heat. Connect the reactor to the
controller using information contained in
its Instruction Manual No. 548M or follow
the steps below.
Labeled connections are provided on the
rear panel of the controller.
Parr Cooling Only:
The
Parr Cooling
output connector is to
be used only with Parr Instrument Company
cooling solenoid valve assemblies supplied
with the appropriate cooling power cord.
Parr Heating Only:
The
Parr Heating output connector is to
be used only with Parr Instrument Company
heater assemblies supplied with the
appropriate heater power cord.
Motor:
Secure the clamp on motor cord
to the controller with the
provided screw next to the motor
socket for safety purposes.
The Motor output connector is to be
used only with Parr Instrument Company
motor assemblies supplied with the
appropriate motor power cord.
2. For Fixed Head Reactors
Bolt the stand to the
bench, table, or floor
using the holes in the
base plate.
3. The support and heater are shipped fully
assembled. The heater raises and
lowers on its support rod to permit the
vessel or cylinder to be removed. Lower
the heater, open the hinged retainer on
the front of the support and slide the
vessel into its support. Fixed head
vessels have a square lip which fits into
a matching groove in the support plate.
Removable vessels are supported by the
split rings which rest on the support
plate. The stirrer drive connector lifts by
rotating and lifting the knob above the
belt guard. The universal joint contains a
cross pin that slips into the groove on top
of the magnetic drive.
4. Connect the heater cord from the heater
into the heater socket on the rear panel
of the Series 4848 Reactor Controller.
5. Plug the motor cord into the motor socket
on the rear of the controller.
Secure the clamp on the
motor cord with the
provided screw next to the
motor socket for safety
purposes.
6. Connect the thermocouple and extension
wire to both the thermocouple and to the
controller in the “Primary Temp Input”
position on the rear panel. Insert the
thermocouple in the thermowell.