General specifications – Parr Instrument Series 4558 User Manual
Page 6
4555 - 58 Series
5G & 10L Pressure Reactors
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General Specifications
Electrical Ratings
Controller ratings are found in the Operating Instructions for the controller supplied with your
reactor.
Before connecting any Series A1761HC Slave Control Box to an electrical outlet, the user
must be certain that the electrical outlet has an earth ground connection and that the line, load
and other characteristics of the installation do not exceed the following limits:
Voltage: Fluctuations in the line voltage should not exceed 10% of the rated nominal voltage
shown on the data plate.
Slave Boxes
A1761HCEE rated 230VAC, 50/60 Hz, 50.0 Amp
A1761HC3 rated 400/415V 3-P “Y”, 50/60 Hz, 20.0/ Leg Amp
Frequency: Controllers can be operated from either a 50 or 60 Hertz power supply without
affecting their operation or calibration.
Current: The total current drawn should not exceed the rating shown on the data plate on the
slave control box by more than 10 percent.
Thermocouple: Unless otherwise specified, all Parr controllers operate with a Type J (iron-
constantan) thermocouple. The total resistance of the thermocouple and the lead wires should
not exceed 20 ohms. If the resistance of the thermocouple circuit is higher, it will reduce the
sensitivity of the control system.