Consibio Logger WD-68 and Logger 4WD uses a standardized M12 connector, that allows users to connect sensors in a plug-&-play fashion.
Sensors provided directly by Consibio will have this connector attached by default. However, it is possible to attach the connector to 3rd party sensors and use the same plug-&-play functionality. The specification for the M12 connector is defined here.
Disclaimer:
Using a custom connector is always at your own risk. Wiring the connector wrong can potentially damage the Logger. This - or any other fault induced by a custom connector or sensor - is not covered by the standard warranty on the Logger.
M12 sensor plug specification
Plug specification
Any M12 plug with the specifications below should work with the Logger.
| Parameter | Value |
| Connector | M12 |
| Pins | 8 |
| Coding | A |
| Gender | Female |
We suggest the part 643721100008 from Würth Elektronik. It requires soldering, but has a high IP rating (IP68). If lower IP ratings can be tolerated, other screw-type connectors can also be used.
Signal lines
| Pin no. | Signal |
| 1 | SDI-12 |
| 2 | 4-20mA input |
| 3 | RS485 A(+) |
| 4 | RS485 B(-) |
| 5 | GND (+ shield) |
| 6 | +12 or +24V output for sensor supply (configured on the Logger) |
| 7 | Pulse input (NO, Normally Open) |
| 8 | +3.3V output for sensor supply |
Mounting the 643721100008 M12 sensor plug
The guide refers to the suggested M12 sensor plug: 643721100008 from Würth Elektronik
To mount the M12 sensor plug, follow the steps below:
- Referred to as the "Tool", this is the counterpart of the sensor plug. Install the sensor plug to this.
2. Screw the part "2" onto part "1".
3. Unplug the sensor plug from the tool. Install the two gaskets (part 3 and 4) onto part 2.
With the two gaskets aligned properly between part 2 and 5, these are screwed together.
The M12 sensor plug depicted below.