4-2. connection of the power supply, 4-3. switching the instrument on – Yokogawa EXA PH202 2-Wire pH/ORP Analyzer User Manual

Page 39

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IM 12B07D02-01E

3-6 Installation and wiring

3-4-2. Connection of the power supply

The terminal strip is accessed as was described in §3-2-1. Use the left-hand gland to insert the supply/

output cable to the transmitter. Connect the supply to the terminals marked +, - and G as is indicated in

figures 3-8 and 3-9.

3-4-3. Switching the instrument on

After all connections are made and checked, the power can be switched on from the distributor. Observe

the correct activation of the instrument at the display. If for any reason the display does not indicate a

value, consult the trouble shooting section.

Red

ref

pH/ORP

temp.

Green

Yellow

Colour code

rd bl

rd

bl

bk

wt

=

=

=

=

red

blue

black

white

11 12 14 17 13

15 16

HIGH IMP

LOW IMP

TEMP LE

INPUT 2

INPUT 1

rd bl

SINGLE

ELECTRODES

Blue

Combi

pH/Ref
Combi

Orp/Ref

temp.

Green

Colour code

COMBINED

ELECTRODES

rd

bk

11 12 14 17 13

15 16

HIGH IMP

LOW IMP

TEMP LE

INPUT 2

INPUT 1

wt

bl

bl

rd

bk

bl rd

rd

bl

bk

wt

=

=

=

=

red

blue

black

white

link

link

Fig. 3-7. Connection diagrams

ORP/Ref

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