Mettler Toledo M400 Especificaciones Pagina 19

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Transmitter Multiparameter M400 19
© 11 / 08 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter Multiparameter M400
Printed in Switzerland 52 121 378
4.3.5 TB4 – ISM (digital) Sensors, pH and Dissolved Oxygen
The wiring of the digital 9 terminal connectors is:
Pin no. Sensor wire Color Function
1 24 VDC
2 GND (24 VDC)
3 Cable core 1-Wire
4 Shield GND (5 VDC)
5 No connection
6 GND (5 VDC)
7 RS485–
8 RS485+
9 5 VDC
– ISM digital sensors can only be connected on TB4.
– Analog sensors can only be connected on TB3.
4.3.6 TB4 – Optical Oxygen Sensors
Pin no. Sensor wire Color Function
1 brown 24 VDC
2 black GND (24 VDC)
3 1-Wire
4 grey and yellow GND (5 VDC)
5 No connection
6 GND (5 VDC)
7 blue RS485–
8 white RS485+
9 5 VDC
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