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• To avoid the influence of disturbances, wire the pH sensor in symmetric mode. In this case, it is com-
pulsory to wire the equipotential electrode.
• When the pH sensor is wired in asymmetrical mode, measurement of the pH may drift over time when
the equipotential electrode is not wired.
Removable screw terminals, 9-positions, grey
ME
RE
RE
GD
CG
FE
SE
TS
TS
1 2 3 4 5 6 7 8 9
Reference electrode
pH measurement electrode
Black
(1)
Translucent
(1)
Equipotential electrode
Temperature sensor
Blue
(2)
Brown
(2)
White
(2)
Black
(2)
FE = functional earth
(1)
Colours of the wires in Bürkert connection cables with order codes 561904, 561905 or 561906.
(2)
Colours of the wires of the Pt1000 sensor with order code 427023 and its Bürkert connection cable with order code 427113.
Fig. 36 : Wiring a pH sensor type 8203 and a Pt1000 temperature sensor in symmetrical mode
ME
RE
RE
GD
CG
FE
SE
TS
TS
1 2 3 4 5 6 7 8 9
Black
(1)
Reference electrode
pH measurement electrode
Translucent
(1)
Equipotential electrode
White
(2)
Brown
(2)
Yellow
(2)
Strap (not delivered)
Removable screw terminals, 9-positions, grey
FE = functional earth
(1)
Colours of the wires in Bürkert connection cables with order codes 561904, 561905 or 561906.
(2)
Colours of the wires of the Pt1000 connection cable code 562628.
Fig. 37 : Wiring a pH sensor mounted into the immersion fitting type 8200 with Pt1000
65
Installationandwiring
Type 8619
English
Summary of Contents for 8619 multiCELL WM AC
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Page 70: ...70 Installation and wiring Type 8619 English ...
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