
Transmitter Multiparameter M400 18
© 11 / 08 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter Multiparameter M400
Printed in Switzerland 52 121 378
4.3.3 TB3 – Conventional (analog) pH / ORP Sensors
pH / ORP sensors use 52 300 1XX series VP cables, or 10 001 XX02 series AS9 cables
(ORP only).
Pin no. Sensor wire Color Function
1 Coax inner / transparent Glass
2 not used
3* Coax shield / red Reference
4* green / yellow, blue Solution GND / Shield
5 – not used
6 white RTD ret / GND
7 RTD sense
8 green RTD
9 – +5V
grey (no connection)
Take care that AS9 cable and AK9 cable have the same configuration. So, if you want AS9 cable
with InPro 2000 and AK9 cable with InPro 3030 connect to TB3, do it as DPAS sensor.
Pin no. 1 – Sensing (electrode).
Pin no. 3 – Reference (Install jumper 3 to 4).
C
NOTE: * Install Jumper 3 to 4 when used without Solution Ground.
4.3.4 TB3 – Conventional (analog) Dissolved Oxygen
These sensors use 52 300 1XX series VP cables.
Pin no. Sensor wire Color Function
1* – not used
2 Coax Shield / red Anode
3* – not used
4* green / yellow Shield / GND
5 Coax Inner / transparent Cathode
6 white, grey Temperature, Guard
7 – not used
8 green Temperature
9 – +5V
Blue wire not used.
C
NOTE: * Install Jumper (supplied) 1 to 3 to 4 when using InPro 6900 (ppb measurement).
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