Connecting Polarographic DO Sensors

Sensor connections

For the most part, the connectors and cabling for polarographic DO sensors is not complex. There are two common connectors used for Hamilton’s polarographic DO sensors:

T82 / D4

The T82 connector, sometimes known as a D4 connector, uses a twist-lock design to secure the cable to the sensor. They are less common than other types of connectors. Among Hamilton sensors, they are found only on the OxyFerm® FDA dissolved oxygen sensors.

T82 connection

T82 Connector

VP (VarioPin)

This is a common connector used throughout the Hamilton sensor product line. VP is an abbreviation for “VarioPin.” The VP designation often includes a number that refers to the number of exposed poles on the connector head; for example, VP 6 indicates a six-pole connector. VP connectors are fully autoclavable and have an IP68 protection rating for submersion in water. The OxyGold® products use VP connectors exclusively, and they are available as an option on the OxyFerm® FDA dissolved oxygen sensors.

OxyGold B connection

VP (Variopin) Connector

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