6-4. connection vp type sensor, Connect ions normal ph, Connections differential ph – Yokogawa EXA PH202 2-Wire pH/ORP Analyzer User Manual

Page 44

Advertising
background image

IM 12B07D02-01E

Installation and wiring 3-11

3-6-3. Sensor cable connections using junction box (BA10) and extension cable (WF10)

For the WTB10 terminal box, see APPENDIX.

Where a convenient installation is not possible using the standard cables between sensors and transmit-

ter, a junction box and extension cable may be used. The Yokogawa BA10 junction box and the WF10

extension cable should be used. These items are manufactured to a very high standard and are neces-

sary to ensure that the specifications of the system are not compromised. The total cable length should

not exceed 50 metres (e.g. 5 m fixed cable and 45 m extension cable). In the case of systems using

dual high impedance sensors (e.g. Pfaudler 18), then the cable length is restricted to 20 metres (fixed

cable only, no extension with WF10).

17 Overall Screen

11

12

12

13

14

14

16

15

13

14

14

16

15

17

11

17

11 Red

12 Blue

15 Core 16 Screen
White Co-axial cable

13 Core 14 Screen
Brown Co-axial Cable

14 (screen)

17 (overall screen)

12 (blue)

11 (red)

13 (core)

16 (screen)

15 (core)

Co-axial cable

(white)

Co-axial cable

(brown)

WF10 Cable

EXA pH TRANSMITTER / CONVERTER

11

12

13

14

15

16

17

11

12

13

14

15

16

17

Fig. 3-11. Connection of WF10 extension cable and BA10/BP10 junction box

NOTE

: See page 3-12 for termination for WF10 cable in combination with EXA pH.

3-6-4. Connection VP type sensor

>

Connect ions normal pH

A-15

B-13

C-

D-14

E-11

F-12

S-3 or 63

pH

ref

LE

temp

>

Connections differential pH

A-15

B-14

C-13

D-17

E-11

F-12

S-3 or 63

pH

pH ref LE

temp

Advertising