Hitachi S-4800 manual Power and Ground Wirings, Connection of the step down transformer

1.3.1Power and Ground Wirings

The instrument operates only with a power supply of AC100 V.

If using a power voltage other than AC100 V, the double insulation transformer (option) is required.

The transformer shall be put after MAIN switch of S-4800. Fig 1-3 shows connection of the step down transformer.

Safety circuit	Remove short cable
MAIN-ELB		Current
	100V	Braker
100/200V
200V: 32A

UL/CE：Double Insulation

Fig 1-3 Connection of the step down transformer

To connect the transformer, remove the left side part of the rear cover of display unit. Remove the provided two short circuit cables put on the TB1 terminal of the power distribution unit.

Connect the cable of input of the transformer to I(L) and 2(N) , and the cable of output of the transformer to 3(L) and 4(N) terminals of the TB1. Refer the following fig 1-4 for connection.

Remove short cables

TB1 TRANS （OPTION)

1(L) 2(N) 3(L) 4(N)

To step down	From
transformer	Transformer

Fixing band for cable to transformer

Main Power	To step down
To Column	transformer
Unit

Fig 1-4 Connection of the step down transformer

The cable of the step down transformer shall be prepared locally with the transformer.

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