Parr-instrument 4857 Uživatelský manuál stáhnout pdf (Strana 8)

4857 Reactor Controllers

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4857 Process Controller Front Panel

SWITCHES AND INDICATORS

4857 Switches and Indicators

The Main Switch is a manual, two-position,

illuminated switch which will cut off power to the

controller. The light indicates power the power is

on. Take care to position the controller such that

the main power switch may be accessed easily

when the controller needs to be disconnected.

PROTECTIVE FUSES

4857 Fuses

Two instrument fuses are mounted on the

back panel. These are Fast-acting, 250VAC, 3.0

amp fuses, intended to protect the internal

circuitry of the controller.

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Parr-instrument 4857 Uživatelský manuál Strana 8