High Resolution Auto Sampler (HiRAS)

High Resolution Auto Sampler (HiRAS)

Advantages at a glance

  • Completely gas tight
  • Space for 165 samples
  • Suitable for stable water isotopes or other samples
  • Remote access
  • Long term monitoring

Please send me more information about High Resolution Auto Sampler (HiRAS)

High Resolution Auto Sampler (HiRAS)

Automated sampling even at remote stations

The automated sampler in the compact form enables self-sufficient sampling of long series of precipitation even in remote stations. The sampling and storage takes place without atmospheric exchange and enables the use of the samples for various chemical, but also isotope analyses.

  •  Program your sampling protocol by time interval, volume, event-driven, or combined
  •  Rack of up to 165 samples gives you an extensive database of high-resolution precipitation events or for very long measurement series
  •  High resolution: Up to 2 mm / 5 min

Optimized for stable isotopes

  • Sampling and storage are performed in individually hosed disposable syringes without air exchange, allowing the samples to be used for stable isotope analysis, as well as other chemical analyses.
  • Valid results: Sampling without cross-contamination, absolutely gas-tight.
  • Optimized in long-term tests of the GFZ (Nepal, Zugspitze, Potsdam).
  • Isotope stability (18O, 2H) min. 3 months, up to 50°C.

Remote access

  • In regions with GSM network, the Android-based mobile app gives you access to the device at any time.
  • This enables, e.g. targeted sampling of events.
  • With intuitive user interface to change parameters, testing of valves, starting, adjusting, ending the sampling protocol, live check of values.

Longterm monitoring

  • Low energy consumption
  • Self-sufficient, flexible energy supply
  • Battery, Solar panel or mains operation

Rugged and compact

  • Stable Pelicase for easy transport, 3D-printed rack, low weight
  • Reliable
  • Wear-free filling, gas-tight sample storage

HiRAS - the multitalent

The prototype of HiRAS was developed for stable water isotope sampling at weather stations. Together with you, we can adapt and optimize HiRAS for your application, i.e. for:

  • routine measurements for immission monitoring
  • tracer tests, determination of breakthrough curves of harmful substances, regular analyses during production processes, process optimization
  • hazards monitoring (dispersion of hazardous gases or liquids in air, groundwater, rivers and more)
  • remediation of contaminated sites, landfills and stockpiles

HiRAS-Autosampler (Standard Model) includes:

  • Rain collector 300 mm, with bird deterrent ringand leaf catcher for direct attachment to the autosampler
  • Precipitation water buffer tank with volume detection
  • Filling of disposable syringes via valve hub and FEP capillaries, with largely atmospheric seal
  • Autosampler is delivered fully assembled with disposable syringes and FEP capillaries
  • Mobile App for Android

Anchorable and height-adjustable stand for HiRAS

  • 1x base plate with 4x leg mounts suitable for the Pelicase incl. 4x knurled screws for mounting on the Pelicase
  • 4x legs individually adjustable in height between 55 and 95 cm via slides with hand toggle
  • 8x knurled screws for attaching the legs to the base plate leg sockets
  • 4x ground screws for anchoring the legs
  • Material: aluminum and stainless steel
  • tool-free assembly

Technical data

  • Dimensions: 525 x 420 x 265mm
  • Transport dimensions box (Pelicase): 630 x 500 x 300 mm
  • Empty weight: approx. 25 kg
  • Sample volume: 165x 25 ml disposable syringes, preconditioning possible
  • variably adjustable flushing volume of tubings
  • Resolution: approx. 2 mm or approx. 5 min
  • Material: Autosampler: aluminum frame, FEP capillaries; Pelicase: Polypropylene

Please notice:

An additional 12 V power supply, e.g. exchangeable battery, solar, mains power is required. We would be happy to offer you a suitable system extension.


  • Remote access via router
  • anchorable and height-adjustable stand
  • Weather station with individual sensor equipment - we recommend our UGT Weather station, because there is also a router included
  • winterproof, heatable version