Parr Instrument Series 4560 - Manual (Page 8)

Mini Bench Top Reactors
P a r r I n s t r u m e n t C o m p a n y 8
Assemble the Reactor
These reactors require at least 10 sq. ft. of work-
space in a well-ventilated area with convenient
access to an electric outlet, running water, air and a
drain.
1. Set the stand in the workspace.
Bolt the stand to the bench top using the
holes in the base plate.
2. The support and heater are shipped fully as-
sembled. 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 fi ts into a matching groove in
the support plate. Removable vessels are sup-
ported by the split rings which rest on the sup-
port plate adapter. 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 mag-
netic drive. There is a bracket at the back of the
area where the split ring rests. The thumb screw
on the drop band which encircles the split ring
closure should fi t into the slot on this bracket.
This will keep the vessel from rotating when
stirring viscous reactions. It may be necessary
to reposition the drop band if the gage does not
face forward when the thumb screw is in the
slot.
3. 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 control-
ler using information contained in its Instruction
Manual 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 sole-
noid valve assemblies supplied with the appro-
priate cooling power cord.
Parr Heating Only:
The Parr Heating output connector is to be used
only with Parr Instrument Company heater as-
semblies supplied with the appropriate heater
power cord.
Note: Do not make connections to a Variac,
Powerstat or the like to attempt to control the
heating output. The heavy inductive load on
the primary side of such devices can destroy
the internal sold state relay located in the 4848
controller.
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 sup-
plied with the appropriate motor power cord.
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 thermow-
ell.
7. Connect leads from accessory packages such as
tachometer, pressure transducer and high temp
cut-off to the designated positions on the back
panel of the 4848 Controller.
8. Connect cooling water to the magnetic drive.
See Instruction Manual No. 234M.
9. Connect tubing to the rupture disc outlet and run
to a safely vented area. See Instruction Manual
231M.