EUTECH INSTRUMENTS ALPHA CON 500 2-WIRE TRANSMITTER Instrukcje Operacyjne Pobierz pdf (Strona 10)

3.2 Back Panel

The back panel consists of two connectors. The first connector is the 17-way

PCB edge connector and the other is the 5-way connector.

Connection for the 17-way screw terminals (from left to right):

1.AC mains live wire 10.No connection

2.AC mains neutral wire 11.No connection

3.AC mains protective earth wire 12.No connection

4.Low set relay resting position (NC) 13.Hold function switch terminal 1

5.Low set relay common 14.Hold function switch terminal 2

6.Low set relay working position (NO) 15.No connection

7.High set relay resting position (NC) 16.4 - 20 mA for -ve connection

8.High set relay common 17.4 - 20 mA for +ve connection

9.High set relay working position (NO)

Connections for the 5-way screw terminals:

18. Pt100/Pt1000 lead 1 terminal

19. Pt100/Pt1000 sense lead terminal

20. Pt100/Pt1000 lead 2 terminal

Note: If using a two-wire RTD, short terminal 19 to terminal 18.

Pt 100/Pt 1000 is selectable via an internal jumper. Factory default is Pt100.

See Appendix 1 for directions on switching the RTD type.

21. pH/ORP (potential matching pin)

21. pH/ORP (shield)

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 33 34

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EUTECH INSTRUMENTS ALPHA CON 500 2-WIRE TRANSMITTER Instrukcje Operacyjne Strona 10