The Model PC42 phase angle controller designed by Corrosion Electronics is ideally suited to cathodic protection systems where multiple output transformer rectifiers are to be used. It can however, be used on single output transformer rectifiers requiring no greater than 25 volts or 8 amps output. The PC42 controller consists of 2 parts - the front panel control board and the DCR3P recifier module. (see pictures below)

DCR3P Module mounted	Model PC42 front
on rear panel	panel controls

The DCR3P recifier module contains all the necessary components that make up the rectifier section. These are:

	Transformer and choke
	SCR Device and Blocking Diode
	PCB containing Interrupt relay, Current Shunt,
	DC Output Filtering and SCR Firing Circuitry.

The PC42 phase angle controller uses a very similar front panel design to the PC41 controller that we offer apart from one minor difference - the inclusion of a output normal indicator mounted on the front panel. This LED is used to indicate the controller is outputting and that the output current is above a user adjustable low current setpoint.

The PC42 controller features 3 switch selectable modes of control:

	Voltage Control
	Current Control
	Auto Control (Potential control)

Adjusting the output can be acheived by turning a multiturn lockable counting dial until desired set point is reached. Other features include:

	Modular Design (Easily Servicable)
	Easily removable plug and socket terminations to all components
	Proportional gain and reset adjustments to ensure stability
	accross all load conditions
	Provision for remote control using 0-10V input
	Voltage and current limit adjustments together with LED indication
	Output normal LED

In conclusion, The PC42 phase angle controller represents a smart solution, combining the rugged and reliable technology of phase angle control into an easily servicable product.

Refer to pictures below for transformer recifiers incorporating the PC42 phase angle controller.

7 Output TR incorporating PC42 Module

PC42 Front Panels - Rear View

PC42 Front panels - Front View

8 DCR3P Modules mounted onto a rear panel

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