Pamas S50

Pamas S50

Pamas S50

  • The S50 is a modern microcontroller driven automatic particle counter that is intended to be used as an online system. The S50 is combining a high performance laser based sensor with a high power digital signal conditioning and a 32bit CPU.
  • It can be ordered with a variety of options to fit the unit into every application.
  • If the application supplies any pressure, the unit can be operated without internal pump. It can determine the flow rate through the sensor to achieve precise results regardless of the input pressure.
  • The S50 is fully suitable for industrial environment. It’s high protection grade make it insensitive against mechanical, environmental and electrical threads.




PAMAS S50 is a permanently installed high resolution online particle counter for oil condition monitoring. It is a cost effective, high performance, laser based online particle counting system with eight size channels. Its flexible integration into industrial monitoring facilities makes it a very versatile device. Inbuilt LED display showing the contamination class code according ISO 4406 in the size classes > 4 μm(c),> 6 μm(c) and > 14 μm(c). Its volumetric cell design of PAMAS sensors measures 100% of the sample flow and guarantees highest accuracy and reproducibility. The particle number and size distribution of all 8 size channels is reported in real time to the PC or PLC (programmable logic controller). The optional analysing software saves the measuring results and shows them in tables and graphs. This makes trends and events easily visible. Due to its measuring accuracy and its trend monitoring and alarm features, PAMAS S50 reduces the risk of failures and ensures the reliability of the controlled operating system.

Measuring range 4-70 μm(c) according to ISO 11171
Flow rate Max. particle concentration: 24,000 P/ml* at 25 ml/min**
Volumetric Laser Class 3R, 4.2 mW
Measurement channels 8 channels
Sample volume 10 ml (adjustable)
Pressure and Viscosity range without pump: 0,2 - 20 bar
with additional pump: 0 - 6 bar
Measurement time Approx. 2 min.
Data storage capacity NA
Data transfer Standard-RS 485 interface optional equipment:analogue 4-20 mA interface. Parallel data transmission for the size channels 4, 6, 14 and 70 μm(c) or serial data transmission for all eight size channels.
Display LED 4, 6, 14 μm(c)
Operating temperature 60°C at an ambient temperature of 20°C
Power supply 24VDC
Dimensions without pump: 220 mm x 120 mm x 120 mm
with additional pump: 230 mm x 200 mm x 180 mm
Weight without pump: 3,7 kg
with additional pump: 5,0 kg
Classification ISO 4406
Battery backup NA
AC Calibration NA
NIST Calibration ISO 4406 (1999)/AS 4059 E/GJB 420B
Pump Automatic sample flow and volume control by wear resistant ceramic piston pump
Software PAMAS PMA
  • Hydraulic oil
  • Lubricating oil
  • Test rigs
  • Parts cleaning
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