Particle Monitors LPM II

(Werdohl, August 2013)

More accurate and complete determination of cleanliness levels of hydraulic media

The development of the Stauff LPM II particle monitor is based on the experience gathered with the already familiar analysis devices of the LasPaC II series. In comparison with the previous model, the LPM I, the LPM II particle monitor detects the degree of contamination in the measured fluid in 8 channels and provides a more accurate and complete definition of the particle sizes in compliance with international standards.

The measurement data are either presented on the display as a contamination class according to ISO 4406:1999, NAS 1638, AS 4059E and ISO 11218 or as the number of particles per particle size. The internal storage can hold up to 4,000 measurement results. All measurement data can be transferred to a PC via a USB or Ethernet port and a real-time system analysis can also be carried out via this connection.

The LPM II particle monitor operates using newly developed diodes and as a result gives an accurate picture of the degree of contamination in the hydraulic system. Thanks to the high number of measuring channels, particle sizes between 4 µm and 70 µm can be detected separately. This enables analysis of the contamination in coarser ranges, too.

The LPM II has been specially developed for the continuous monitoring of the hydraulic system. As it is permanently installed into the system, the LPM II allows users to react quickly to increasing contamination and so to protect the system against costly stoppages and reduce machinery downtime.

Thanks to its robust and compact construction the LPM II is resistant to impacts, shocks, dust and moisture (protection class IP 67) and can be used with almost all common hydraulic fluids. It is available in two versions (with and without display).

For measuring points that are difficult to access it is possible to install a separate display in another place. It is also possible to connect it to existing machinery systems without any problems thanks to the MOD-Bus and CAN-Bus connections integrated into the device.

In contrast to many other particle monitors, thanks to special flow characteristics it is possible to carry out measurements with the LPM II almost irrespective of the pressure and flow rate.

The LPM II also offers the opportunity to set different alarm thresholds. This means that when defined threshold values are exceeded or not reached, a signal can be relayed to an external device (e.g. warning light or bypass filter). The LPM II can also be equipped with a water-in-oil sensor / temperature sensor. The sensor detects the water content of the measured fluid (results in relative humidity, RH%) and also indicates the current fluid temperature (in °C).

Picture 1:

The Stauff LPM II particle monitor, available with and without display

(Courtesy of Walter Stauffenberg GmbH & Co. KG)

Download picture (JPG, 10x10cm, 300dpi)

Picture 2:

Optional: OLS bypass flow filters with twin housing length
and pre-installed particle measuring unit LPM II

(Courtesy of Walter Stauffenberg GmbH & Co. KG)

Download picture (JPG, 10x10cm, 300dpi)

Background Information

Walter Stauffenberg GmbH & Co. KG was founded in the 1950s in Werdohl, in the German province of North Rhine-Westphalia, and was initially a contract turning shop. Today the company operates under the trade name STAUFF, developing, producing and marketing fluid technology components for use in plant construction and mechanical engineering. In the fields of tube, pipe and hose clamps, measuring technology and hydraulic filtration, STAUFF is one of the world’s leading organisations in a growing industrial segment.

Meanwhile, more than 1200 employees (12/2012) in 18 companies generate an annual turnover of more than EUR 190 million (12/2012) worldwide. Additional distribution subsidiaries have recently been opened in Ireland, Malaysia and Vietnam. Besides the group headquarters in Werdohl Ehrenfeld, the company has production and logistics facilities in the German cities of Plettenberg-Ohle and Neuenrade-Küntrop.

Press Contact

Mr Boris Mette
Head of Marketing Communications
Tel.: +49 (0) 2392 / 916-154
Fax: +49 (0) 2392 / 916-270154

(copy 2)

Back to overview