Mettler Toledo M400 Configuration Rapide page 8

TB3 – Conventional (analog) Sensors
ISFET
Term. Color
1 Coax inner / pink
2 –
3* yellow
4* green / yellow
5 –
6 white
7 –
8 grey
9 brown
4 Wiring example for pH Transmitter (using TB3)
pH measurement with monitoring of glass electrode
SG (Solution
Ground)
Temperature
probe
8
Function
FET
not used
Reference
GND / Shield
not used
RTD ret / GND
not used
RTD
+5V
9
8
7
6
5
4
Jumper if
pH electrode
3
without SG
2
1
Cable
Combination
pH electrode
with RTD
and SG
Terminal 4 and 6 are in-
ternally connected, either
terminal can be used to
connect a wire.
* Jumper 3 to 4 has to be
installed.
9 +5V
8 RTD
7 RTD sense
6 RTD ret/GND
5 not used
4 Solution GND/Shield
3 Reference
2 not used
1 Glass
Note: Wire colors only valid for connection
with VP cable, grey not connected.