Parr Instrument Series 4558 - Manual (Page 19)

4555 - 58 Series
5G & 10L Pressure Reactors
- 18 -
REACTORS WITH SLAVE BOX CONTROLS
Reactors can be set up with a wide variety of heaters. Single zone flexible mantle type
heaters or 3-zone ceramic fiber, band or aluminum block type heaters can be used
depending on the customer’s requirements. For the high powered 3-zone type heaters, Parr
Instrument Company offers a series of slave box controls. Having zone control allows a
wide range of heating power to be selectable by the operator. These slave controls are used
in conjunction with the 4848M Master Controllers.
Note- 3-Zone Heater locations are traditionally:
Zone 1 = Bottom Heater
Zone 2 = Middle Heater
Zone 3 = Top Heater
A1761HCEE 3-Zone Slave Control Box
The A1761HCEE slave control box is supplied with a 250 volt, 50 amp (NEMA 6-50P)
power plug. A 230 volt, 50 or 60 Hz, single phase power supply capable of a maximum
current draw of 40 amperes is required.
The A1761HCEE slave control box has 3 heater outputs each corresponding with a
respective heated zone. There is a 4 position selectable switch, on the front panel, which
can switch the heaters off or turn on zone 1, zones 1 and 2, or zones 1, 2 and 3.
Also located on the front panel are 3 manual reset, high limit switches. These switches
will trip if an alarm condition is present on the master controller. Once the alarm condition
has been resolved, ensure the selector switch is in the “off” position, and reset each switch
by pushing in each button until it latches. These switches may have to be set when the unit
is first powered on.
A1761HC3 3-Zone Slave Box Control
The A1761HC3 slave control box is supplied with an IEC 60309, 5 pin, 32 amp power
plug. A 400 to 415 volt, 3-phase power supply wired in a 5-wire WYE configuration capable
of supplying a maximum of 20 amperes is required.
The A1761HC3 slave control box has 3 heater outputs each corresponding with a
respective heated zone. There is a 4 position selectable switch, on the front panel, which
can switch the heaters off or turn on zone 1, zones 1 and 2, or zones 1, 2 and 3.
Also located on the front panel is a manual reset, high limit switch. This switch will trip if
an alarm condition is present on the master controller. Once the alarm condition has been
resolved, ensure the selector switch is in the “off” position, and reset the switch by pushing it
upwards until it latches. This switch may have to be set when the unit is first powered on.
Initial Operating Test
Read all operating instructions carefully so as to be well acquainted with the correct
procedures for handling the vessel and for operating the controller and other accessories.
An initial operating test should be made, with only water, to check the apparatus before
starting the first experimental runs. For this initial test, fill the cylinder not more than half-full
of water and run the temperature up to 150 °C while checking the apparatus for leaks and
observing the performance of the temperature controller.