Uvitron HiWatt 2 - High Power Lamp Ballast

The HiWatt 2 UV programmable electronic arc lamp ballast is a dual-processor controlled, solid-state switching power supply. It consists of two power stages: a square wave AC output converter and igniter for powering a mercury vapor or halide arc lamp, and an auxiliary DC power supply for providing 24VDC (6A) for user controls and cooling fans.

The HiWatt 2 ballasts are designed to be factory or customer software configurable (via PC serial port) to allow the unit to adapt to a wide range of lamp types and utility power sources. This capability allows the unit to power an arc lamp in the range of 1kW-20kW, with lamp voltages of 200-850V, from single or three-phase AC sources of 208 / 240 / 480V 60Hz-200 / 230 / 380 / 415V 50Hz.

The electronic ballast may be used to power two arc lamps in a series as long as the total composite voltage does not exceed 850V. This programmability makes the HiWatt 2 a truly universal arc lamp ballast that can be used as a single unit solution for powering many types of lamps from power sources worldwide.

PC/PLC Control Interface

The HiWatt 2 can communicate with customer-connected controllers or PCs via optically isolated digital logic signals, RS485 serial port or USB port. The logic signals include status lines for lamp ignited, lamp ready (warm-up-complete) and unit alarm, as well as control signals for lamp enable / disable and lamp dimming (via PWM control, pulse frequency or 0-10V).

A lamp cooling blower control is also provided with a blower on / off signal, air temperature / flow regulation and lamp temperature monitoring. The unit can optionally control motorized or pneumatic lamp shutters.

Units can also be networked to provide a customer interface to multiple HiWatt 2 slave units from the RS485 ports. This option will allow interface with multiple lamp systems cascaded on a single high-speed product line, which can still be controlled and monitored as a single system with much higher power capability.