Density sensors

The sensor does not make a sound. Is it broken?

Check that the sensor is connected and shown on the settings page listing all sensors. The sensor makes sound when measuring, but the sensor is not continuously measuring, only short periods of up to 5 minutes every hour or so.

Can the sensor be updated?

Yes, the sensor can be updated using CAN bus when connected to the FCS. The system will notify you if an update is available.

What do I do it the fork is damaged or bent?

If the fork gets bent, it will affect the reading and accuracy. Gently bend it back so the tines are parallel and perform a calibration.

Can I use the sensor in my racking port?

Yes, but installing in racking port can effect accuracy of readings and issues if yeast covers the sensor.

Will the sensor work with the MiniUni+?

Yes. We recommend placing it in the bottom port. If using in combination with our TC 1.5" heating element, it is important to install the heating element in the bottom port and the density sensor in the upper port.

My sensor has got Beer Stone, what do I do?

Use dedicated cleaning products for removing beer stone. Alternatively follow these simple steps:

1. Rinse with ambient temperature water to remove loose debris.

2. Submerse the stem and fork in e.g. Phosphoric acid at maximum 60°C for 15-30 minutes to chemically dissolve salt (e.g. calcium carbonate or magnesium).

3. Submerse the stem and fork in a non-caustic alkaline cleaner (e.g. PWB) for 15-30 minutes to remove organic residue such as proteins and biofilm and neutralize acids.

4. Rinse with ambient temperature water to make sure acid and cleaning agents are well rinsed off.

My manual samples are not in accordance with what the sensor is measuring, what can I do?

This can be caused by too little liquid above the sensor. We recommend 20cm liquid over the sensor. Adding a slight over-pressure at 0.5 bar / 7 PSI the formation of CO2 bubble on the stem will be eliminated. If the yeast health is poor, heavy flocculation and sinking yeast can sit on the sensor causing incorrect readings.

Can I move the sensor from one tank to another?

Yes, just make sure to re-calibrate it at the start of each batch.

The sensor comes with plastic protection, what do I use it for?

The plastic cap is to protect the fork from damage during transportation or storage. Remove it before installing it and put it back during storage.

Can I connect the sensor to a PLC without using the FCS?

We are considering opening our CAN sensors and actuators for use with other systems. Stay tuned.