GRUNDFOS Direct Sensors™
GRUNDFOS Direct Sensors™ is founded on material science. From die with a metalglass alloy to plastics and sintering allowing very advanced geometries and a minimum of material. We started selling in 2005, and has since developed a complete flow and pressure sensor family in composite for OEMs and a transmitter product family in stainless. In 2015 this was extended from 100°C to 120°C range, and at this years FAKUMA we are presenting our Generation 5 sensor family and an extension of a special range of flow sensors up to 160°C for sale in 2019.
GRUNDFOS Direct Sensors™ goes everywhere:
Before presenting our new products, we will emphasize what we have learnt from our year long work within the Temperature Control market - in particular within TCUs and PiM. Having accurate temperatures of the cooling can lead to 20% less rejects, which many of our customers customers have experienced in their molding of plastic parts, and a driving force for the industry and hence requirements for us to improve the accuracy of our absolute temperature and especially dT temperature. Second point, is that turbulent flow going into the molds creates a better heat transfer. As our flow sensors depends on turbulent flow, the combination of our vortex flow sensor and proximity cooling in manifolds (PiM, HotRunner, Die Casting) is ideal for higher energy efficiencies coming from running the chiller and/or TCUnit at eg. higher temperatures at higher flow rates keeping the pressure constant. Improving our flow and pressure sensor accuracy has as such been a yearlong wish. Combining the Chiller, TCU and Manifolds with communication of critical measured parameters such as T, dT, Pressure and Flow between and inside has suddenly become pivotal. In some cases a requirements seen from automotive customers to Die Casted parts. Monitoring and reporting is a trend seen from many customers, and suddenly these costs of sensors can be turned into revenue streams from our customers in the bright dawn of Industry 4.0.
In our new standard range of sensors for OEMs, we have radically improved the accuracy. Between “any” of 2 standard sensors (VFS, RPS, DPS and MFS), we obtain a dT of +/- 0.3 C for sensors not paired with each other.
- Accuracy 15-90°C (59-194°F): 0.3 K
- Accuracy 0-120°C (32-248°F): 0.5 K
This means, that our customers can place a pressure or flow sensor with integrated temperature where ever in the machines or between the machines, and obtain an unseen differential temperature accuracy between unpaired sensor. In general our VFS range of flow sensors has gotten their inaccuracy reduced by 1/3rd from 1½% FS to 1% extended from 100°C to 120°C.
- Accuracy (± 1 σ) in water, 0-120°C (32-248°F): ± 1% FS
With the new flow accuracy and dT accuracy, this means that our customers can start working on turning their units into EN1434 heat meter certifiable TC, Chiller Units etc.
The pressure accuracy has also improved,
- Measuring range: 0 - 10 bar (0-145.0 psig)
- Accuracy (± 1 σ), 15-90°C (59-194°F): ± 1% FS
- Accuracy (± 1 σ), 0-120°C (32-248°F): ± 1.5% FS
and all standard sensors comes with a digi-analog interface meaning, that our customers can continue using our standard analog signals and later on develop a digital interface. Going digital will release the full potential of the sensors enabling power, and lower the system costs.
We additionally have a one-wire bus version enabling upto 32 sensors on the same cable, which can be requested for any of our standard sensors. Also a 3in1 sensor measuring flow, pressure and temperature will be released in 2019. And finally, we will be releasing our 160 C flow sensor range from the beginning of 2019. A range of flow sensors developed in partnership with selected customers, and requested specifically by TCU builders, PiM, HotRunner and Die Casting machine manufactrurers.
Meet us at Fakuma
We will not close the door, but hope that you’ll meet us at the upcoming Fakuma, 16th to 20th of October in Friedrichshafen, Germany at Exhibition hall ÜO Booth ÜO-03 (Passage East)
Looking forward to meet you.
On behalf of Grundfos’ Sensor Team,
Director, Klaus Kattenhoej.
Walking the extra mile for our customers (Santiago de Compostela, 2018)