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AMPTS® II Light​


- simplify selecting & pricing substrates

AMPTS® II Light is developed for biogas plant operators to quickly evaluate biomethane potential or biogas potential from various biomass substrates. It lets operators fully explore the energy potential of all available substrates and make better business decisions based upon the true value of a substrate.

Use AMPTS® II Light to discover biochemical methane potential (BMP), residual gas potential (RGP), anaerobic biodegradability and specific methanogenic activity (SMA) assays for a small number of samples.

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AMPTS® II Light enables:

  • Precise and accurate data
  • Significant reduction in time, labour and skill demands
  • Standardising measurement procedures, data interpretation and reports
  • Remote access and user-friendly operations

Transforming substrates into profit

Better monitoring of changes in substrate energy content significantly reduces time, labour and skill demands, making your operations more accurate and profitable. AMPTS® II Light provides reliable data from experiments carried out under different conditions.

Standardised measurement

The real-time temperature and pressure compensation feature minimises and standardises the impact of measurement conditions. The temperature and pressure of the gas are measured every time a flow cell opens, allowing you to derive exact kinetic information compensated for any variation of ambient temperature and pressure over time while considering the vapour content of the gas.

Monitor from your smartphone or tablet

AMPTS® II Light allows easy access from a remote location using any computer, smartphone or tablet. It uses standard protocols and connections secured by a user-definable password, behaving like any other unit on an internal network.

Connect multiple instruments using a network switch for analytical capacity expansion or use AMPTS® II Light as a stand-alone device depending on your needs.

Stable, reliable operation

AMPTS® II Light software offers unmatched stability, data protection and minimum downtime as it runs on an embedded ARM CPU using the Linux operating system.

Analysis made easy

Easy to understand and navigate, you can set up an experiment, monitor its progress and download the results with little effort. All data is in a format that allows for easy analysis.

The software also automatically calculates and generates experiment guidelines for the amount of substrate and inoculum needed in each batch test.

Standardise and compare results from any lab – anywhere

AMPTS® II Light gives easy, instant access to ongoing experiments and reports to professionals all over the world, saving lots of time and effort. It allows you to standardise measurement procedures, data interpretation and reports, and normalise data (i.e., 0 ˚C, 1 atm and dry conditions).

Automatically removes gas overestimation

Methane gas overestimation arises from flushing the system with an inert gas such as nitrogen. Biogas produced from the anaerobic fermentation will push the remaining inert gas out from the reactor headspace and the inert gas can mistakenly be counted as methane gas. This means a possible overestimation of methane gas production by as much as 20–30 percent depending upon the total volume of gas production and headspace volume of the test vial. AMPTS® II Light calculates and removes this overestimation, providing for more accurate and reliable data.

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Collection of Methods for Biogas

Book chapter: “Collection of Methods for Biogas – Methods to determine parameters for analysis purposes and parameters that describe processes in the biogas sector: Determination of methane potential of organic biomass using Automatic Methane Potential Test System (AMPTS® II)”

Author: Verschiedene
Editors: Jan Liebetrau, Diana Pfeiffer
Series “Biomass energy use”, Band 7 (2020) 412, 10.3

AMPTS® II series were introduced as an innovative test equipment for determination of methane potential of organic biomass.


Laboratory experiment protocol

Laboratory experiment protocol of TU Delft Open CourseWare for determination of the specific methanogenic activity (SMA) of anaerobic sludge.

Authors: Merle de Kreuk, Nuria Martí, Yu Tao, Haoyu Wang (Nov 2012) Department of Water Management, Faculty of Civil Eningeering and Geosciences, Delft University of Technology (The Netherlands)

AMPTS® II is used as the recommended experimental platform for CIE4485 laboratory experiment – SMA Test which is one of the course laboratory practice in the open course offered by TU Delft.

Customers reviews

What people say

AMPTS® II series is the key piece of equipment for Digester Doc, as the equipment is used in determining current and potential energy values as well as in other troubleshooting activities. Digester Doc’s clients get help to identify the most suitable bacterial or mineral innoculants and feedstocks wisely, and potentially get at least 25% additional energy values out of their facilities. One of our many success stories is New Energy One, LLC in Idaho, where they were able to double production in just three months due to the AMPTS® II usage.
Dr. Will Charlton
President, Digester Doc, USA
We use AMPTS® II for both sales process and technical process optimization. The biomethane potential test performed with AMPTS® II can provide useful data to demonstrate benefits of Cambi thermal hydrolysis technology for sludge pre-treatment before anaerobic digestion. This allows our clients to evaluate the possible return of investment on implementation of Cambi thermal hydrolysis treatment in wastewater treatment plants.
Mr. Stefan Sandbacka
Vice President of Business DevelopmenT, Cambi Group, Norway




Learn more about AMPTS® II Light.

Operation and Maintenance Manual


Tech Specifications

Software & System

  • Software application specially designed for anaerobic batch fermentation analysis including biochemcial methane potential and other anaerobic batch fermentation tests
  • Web-based software running on an embedded server
  • Online real-time gas flow and volume display
  • Automatic real-time pressure and temperature compensation
  • Real-time gas flow and volume normalisation
  • User-friendly guidelines for experiment setup
  • Possibility of multiplexing, allowing for simultaneous batch analysis at different startup times
  • On-line system logger for operational diagnosis

Power supply: 12V DC / 5A (Flow cell array and DAQ unit); 24V DC / 2.7A (mechanical agitation)

Usage: indoor


For more information, please refer to the user manual.

Ex-situ carbon dioxide absorption unit

Carbon dioxide trap bottles: 6
Volume of carbon dioxide trap bottles: 500 ml
Dimension of unit: 44 x 30 x 6 cm
Absorption liquid: 3 M NaOH with pH indicator, 80 ml per bottle (not included)
Absorption efficiency: >98%

Please refer to the accessories section for individual article number of components in the carbon dioxide absorption unit.

Flow cell array and DAQ unit

Working principle: liquid displacement and buoyancy. Up to 6 cells running in parallel; built-in pressure and temperature sensor
Measurement resolution: 9 ml
Detection capacity: up to 900 l cumulative gas for each batch test
Measuring range: 1 to 6000 ml/h for 9 ml flow cell (integrated data acquisition)
Dimension: 51 x 44 x 18 cm
Housing: plastic
Measuring precision: CV ≤ 1%

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Sample incubation unit

Maximum number of reactors per system: 6
Reactor material: glass
Standard reactor volume: 2 l
Dimension of unit: 59 x 34 x 28 cm
Temperature control: up to 95 °C (203 °F) (precision of 0.2 °C)
Mixing of reactors: Multifunctional agitation system with brushless DC motors for long-life operation. Remote speed and on/off control via AMPTS® II Light software control interface. Manually adjustable direction and time interval, as well as timer function to set time periods for reversal. Modular design for low maintenance. Rotating speed range: 10-200 rpm.

Please refer to the accessories section for individual article number of components in the sample incubation unit.