Parr Instrument Series 4520 - Manual (Page 8)

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4520 Bench Top Reactors Parr Instrument Company
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.
10. Note the voltage and amperage
requirement stamped on the controller
data plate, and then plug the power cord
into an appropriate outlet. Power for
these reactors should be drawn from a
grounded outlet capable of carrying up to
the full current rating of the reactor.
11. If an electric stirrer motor is supplied,
turn the speed control knob fully
counterclockwise on the Reactor
Controller, turn on the motor switch and
slightly increase the speed for a short run
to check the stirrer drive system but do
not turn on the heater, put heater toggle
switch in center position (OFF). There
must always be a vessel in the heater
when it is turned on, and the vessel and
heater sizes must match. If the heater is
operated without proper size vessel in
contact with the mantle, the mantle may
overheat and fail.