Parr Instrument Series 5100 - Manual (Page 7)

w w w . p a r r i n s t . c o m
5100 Low Pressure Reactors
7
Carefully bring the flange of the glass cylinder
in contact with underside of the reactor head.
A lab jack / cork support is provided for 1.0 and
1.5 liter glass reactors. When using the lab jack,
bring the cylinder flush with the O-ring in the
head, ensuring no stress is put on the glass.
Align the major OD of the head with the OD
of the cylinder flange. If a jacketed cylinder is
being used, orient the cylinder so that the jacket
connections are oriented to either side. Hold the
cylinder carefully at the bottom with one hand,
slide one of the half split rings onto the head/cyl-
inder flanges, and rotate/slide around the head/
cylinder flanges until the latches are facing you.
Use one hand to steady this half split ring to the
head/cylinder flanges as you attach the other
half split ring from the front. Secure the latches.
If using a lab jack, now lower it so that cylinder
hangs freely.
At this point, the glass cylinder will be held in
place loosely and can be rotated for proper ori-
entation if needed. Tighten the six thumb screws
two at a time, 180 degrees apart in a criss-cross
pattern rather than progressively around the
circle until finger-tight and the head flange is
flush with the top of the cylinder flange. Do not
over-tighten.
CAUTION! Never use tools, such as pliers, to
tighten the thumbscrews. Excessive loading
on the cylinder flange can compromise the
pressure rating of the cylinder.
CAUTION! Before applying pressure to the
reactor, install the transparent Lexan safety
shield onto the front of the reactor stand.
Failure to do so can result in serious injury if
the cylinder should break under pressure.
To remove the cylinder from the head, follow the
above procedure in the reverse order. If a jack-
eted cylinder is being used, drain and disconnect
the jacket hoses first.
2. Set the 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
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.
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.
Parr Motor Only:
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 top
of 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.