Particle counter in the rugged case PAMAS GO for the remote on-site analysis of fluid samples – pressureless sampling and up to 420 bar system pressure testing.

The rugged and resistant PAMAS S40 GO portable particle counter is built to meet the demands of the harshest environments and can be used for field analyses and for laboratory measurements. The instrument includes an integrated battery for mains free operation on site. It is small and light enough to fit into an aircraft overhead locker. The rugged case PAMAS GO is water tight and protects the instrument in harsh environments and during transportation.

Product features

  • Robust & convenient design

  • Dust and splash-proof

  • Lightweight only 8kg

  • Suitable as cabin luggage

  • Customizable measurement analysis settings

  • Intuitive operation via touch screen

  • Automatic sample flow and volume control by wear resistant ceramic piston pump

  • Measurement from pressureless up to 420 bar system pressure

  • Pressureless measurement of fluids with viscosities of up to 1.000 cSt at 22°C (equal to ISO VG 320) without the need for accessories

  • Use of any sample vessel 

  • Internal data storage of more than 4,000 measurements

  • Measurement printout via integrated thermoprinter

  • Same measurement accuracy as a laboratory unit

  • Multilingual menu navigation

  • Battery running time of more than 4 hours


  • Hydraulic oils

  • Turbine and insulation oils

  • Gear oils

  • Fuels


Available size ranges:

  • 4–70 µm(c) (ISO 11171)

  • 2–100 µm (ISO 4402)

Max. particle concentration:

  • 24.000 P/ml at 25 ml/min

  • Other sensors for larger particle sizes or higher concentrations are available on request.


  • PAMAS S40 Standard for oils at up to 420 bar system pressure

  • PAMAS S40 Lube Oil for highly viscous oils of up to 1,000 cSt

  • PAMAS S40 Fuel for fuels such as petrol, diesel or kerosene

  • PAMAS S40 Skydrol for phosphate ester based hydraulic fluids

  • PAMAS S40 AVTUR for turbine fuels according to EI-IP 577 and DEF-STAN 91-091 as well as diesel according to IP PM FA

Standards and methods
ISO 11171 ISO 4402 ISO 4406 SAE AS4059 NAS 1638 GOST 17216
GJB 420B
GJB 420A
NAVAIR 01-1A-17*
SAE 749D*
ISO/DIS 11218.2*
ASTM D7647
IEC 60970
ASTM D6786
ISO 11500

* in connection with PAMAS PMA software.