Here is how to wire a Mass Flowmeter to a Mixmate module. It takes 4 wires to make the connection. 

In the 6 pin connector you will need a wire in Pin 1,3,4, and 6. Where Pins 1 and 3 are a pair and 4 and 6 are another pair.

On the Mass Flowmeter Side, you will wire each pair into an output in the Display. After this is done, set up the configuration in the Mass Flowmeter to pulse output volume measurement to one of the outputs and weight to the other output.