KROHNE OPTISENS PAC 050 EN User Manual

Page 10

Manual OPTISENS PAC 050

OPTISENS PAC 050 10

2.1 Connection diagram panel-mounting converter

Connection Terminals

Notes
1 = reference electrode = screen

pH electrode

1 - 2

2 = measuring electrode = core

1 = measuring electrode = core

ORP electrode

1 - 2

2 = reference electrode = screen

Measurement = brown & white
1 = brown, 2 = white

Supplied voltage = yellow & green

Impedance converter

1 - 4

3 = yellow = -6V, 4 = green = +6V

Pt 100

5 + 6

Analog output

9 + 10

9 = +, 10 = -

max. burden 500 Ohm

Digital input

11 + 12

11 = +, 12 = -

External controller stop or lack of water ind.

Relay 1

14 + 15

Relay 2

16 + 17

Relay 3

18 + 19

Alarm relay

Power supply

21+ 22+23 check information given on instrument label

RS485 (option)

Sub-D

Sub-D 4/7

3 = +, 8 = -

bridged = terminating impedance activated