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Biogas - Bieler Lang Gas Detector PRODUCTS

Your partner for safety and protection. Bieler+Lang is your partner for industrial safety systems. There are many areas where there is a risk of dangerous or explosive gases and vapors. We help you protect people, the environment, equipment and property against serious and costly damage. Our products have been providing reliable early warning of gas accidents and explosions for over 40 years. Bieler+Lang is the name you can trust.

Gas Detectors

GMC Biogas 08

The GMC Biogas 08 is used to monitor the fermentation of biogas and sewage gas. In a biogas plant, the composition of the biogas needs to be monitored to optimize control of the production process.
The GMC Biogas 08 biogas analyzer from Bieler+Lang measures levels of methane, carbon dioxide, residual oxygen and hydrogen sulfide in user-defined cycles.
The hydrogen sulfide sensor is located in a separate channel and is fitted with an overload protection device. This is just one example of the maintenance-friendly design and lower maintenance costs achieved through optimization of the biogas analyzer.
Easy to use and with clearly arranged menus, the GMC Biogas 08 is the ideal starting point for efficient operation of your biogas plant.
Menus are available in English, French and German.
Custom measuring solutions are available on request.

Technical data

• Double infrared measuring bench for CH4 and CO2
• H2S sensor in separate channel with independently adjustable measuring interval
• Overload protection for H2S sensor
• Easy, menu-guided operation
• Modular design, easily upgradeable
• Low maintenance requirements
• Integrated data logger for 1440 records including data output
• Active control of pump function before every measurement
• Automatic zero calibration of sensors before every measurement
• Available menu languages: English, French, German


SERVOFLEX Micro i.s (5100 i.s)

The SERVOFLEX Micro i.s is a single component Intrinsically Safe Portable Gas Analyser that is certified to zone 0 and zone 1.

Technology Used

Oxygen – a choice of two Servomex paramagnetic transducers (standard or high accuracy) both offering fast selective measurement of oxygen without the disadvantages of electrochemical or zirconia cells.
Carbon Dioxide and Carbon Monoxide – Single beam, single wavelength infrared technology using Servomex patented long life source gives a highly stable, selective and low maintenance measurement.


Typical Applications



Puzzled by Which ICP-OES is right for you? No Need to be! Leeman labs offers the widest configuration of ICP spectrometers to fit any applications! In 30 years of supplying ICP Spectrometers, we’ve learned no one ICP-OES is ideal for all applications. That’s why Teledyne Leeman Labs offers you the broadest range of ICP Spectrometers available. Let us help you select the best instrument configuration for your sample types. All our ICP Spectrometers are available in Radial, Axial or Dual View Configurations, so you can choose the view that’s best for your sample matrix. Mercury When the concentration of mercury needs to be measured, laboratories all over the world turn to Teledyne Leeman Labs for high performance solutions to their mercury analysis challenges. To help you select the right mercury analyzer for your application download the Mercury-at-a-Glance Comparison Guide and find out which mercury analyzer is the perfect fit for your laboratory needs.



When the concentration of mercury needs to be measured, laboratories all over the world turn to Teledyne Leeman Labs for high performance solutions to their mercury analysis challenges. To help you select the right mercury analyzer for your application download the Mercury-at-a-Glance Comparison Guide and find out which mercury analyzer is the perfect fit for your laboratory needs.

When the concentration of mercury needs to be measured, laboratories all over the world turn to Teledyne Leeman Labs for high performance solutions to their mercury analysis challenges. To help you select the right mercury analyzer for your application download the Mercury-at-a-Glance Comparison Guide and find out which mercury analyzer is the perfect fit for your laboratory needs.


Laboratory Syringe Pumps

Pump almost anything! Teledyne Isco syringe pumps give you precise, reliable metering for an incredible range of applications. You’ll easily handle viscosities from liquefied gases to tar, flow rates from sub-microliter to 400 ml per minute, and pressures to 30,000 psi (2068 bar). 

Use these rugged, do-anything pumps to solve your toughest fluid delivery problems, from micro-flow to scale-up and pilot plant, pumping corrosive liquids, and safe operation in explosive atmospheres with the HL Series. 

• Core Flooding 
• Reactant Feeding 
• Supercritical Fluids 
• HPLC and Ultra-HPLC 
• Alternative Energy – Biomass 

Isco’s programmable multi-pump controller interfaces easily with your system, and provides great versatility with single pump independent mode, dual pump continuous delivery or receive mode, and several three-pump control modes. 


Laboratory Systems:

Teledyne Isco:  The Teledyne Isco Chromatography product line includes instruments and accessories for purification of organic compounds in normal-phase and reversed phase separations, and for bio-purification of proteins, peptides, and other biopolymers. 


CombiFlash® Purification Systems
Teledyne Isco CombiFlash® systems meet the high-productivity needs of organic and medicinal chemists.

RediSep® Rf Media
Performance and peace of mind.

Fraction Collectors
Providing scientists with reliable LC collection for over 40 years.

Reliable detectors for organic and natural product liquid chromatography

Peristaltic Pumps
Built for years of reliable service


Density gradient centrifugation is used for the gentle isolation of cellular ribosomes, RNA, DNA, and organelles. These unique density gradient systems automate the preparation of gradients, and the fractionation and UV scanning of zones after the spin. 

Density Gradient Fractionation Systems
Choose the system that meets your automation needs.


Laboratory Analysers:

Picarro is a leading provider of solutions to measure greenhouse gas (GHG) concentrations, trace gases and stable isotopes across many scientific applications, along with the energy and utilities markets. 


Cavity Ring-Down Spectroscopy

Our patented Cavity Ring-Down Spectroscopy (CRDS) is at the heart of all Picarro instruments and solutions, enabling the detection of target molecules at part per billion, or better, resolution. 


Lab Sample Take Off Systems

Dopak – The Dopak SRS offers the ability to recover a liquid sample from the sample bottle without the risk of spillage or contamination. Applications for this system can be found in plant laboratories. The unique design offers a one handle operation by multiple valves. In addition, the nitrogen purge not only assists in driving the liquid out of the sample bottle, but also cleans the whole system including needle assembly and sample bottle.


Gas, Liquid and Vapour Samples

Dovianus develops, produces and markets sampling systems for liquids, gases and liquefied gases under the name Dopak. We are respected for our sampling systems in the international chemical and petrochemical industries. Dopak closed vent samplers allow you to safely take samples of toxic, dangerous and volatile substances, without any danger for your operators or the environment.


Instrumentation Pressure Regulation

GO Regulator is a leading designer and manufacturer of standardized and specialty pressure regulators, diaphragm valves, and filters for the Analytical, Instrumentation, Petrochemical, Oil & Gas, and Specialty Gas industries. GO regulators and valves fulfill a wide range of applications, controlling pressure while accommodating low to moderate flow rates of many gases and liquids. A broad range of pressure regulator requirements can be fulfilled by the complete line of time proven GO fluid control products. GO regulators provide back pressure regulation for high-pressure, high sensitivity, sub-atmospheric applications, as well as vaporizing regulation for LNG and cylinder pressure regulation.


High Quality Instrumentation Valves and Fittings

HOKE is the logical choice for fluid control solutions for orifice sizes typically up to 2”. With the lowest cost of ownership, the best in class reliability and global distribution assuring availability of products, HOKE valves and fittings are unmatched. In the early 1960’s, HOKE introduced the GYROLOK® tube fitting. To this day, GYROLOK design features offer unique advantages and benefits that are unmatched in the industry. Through years of experience, HOKE understands that precise flow control is a complex thing, not a commodity. At HOKE, the approach is to focus on the whole process in order to satisfy all requirements of the end-user.


Heated Probes

JCT – ·  Robust, compact transport case with all necessary parts for mobile gas sampling: gas sampling probe, heated sample line, sampling tubes, filter elements, calibration gas connection, mounting chains, …


Sample Pumps


Air Dimensions Incorporated has more than 60 years of combined experience in the development, engineering and production of precision gas sampling diaphragm pumps and compressors. Each of our durable Dia-Vac® pumps boasts completely oil-free, contamination-free and leak-free sampling capability. Unsurpassed quality, personal customer service and expedited delivery all combine to make ADI the leading authority in the diaphragm pump industry.


When a pump goes down, we know that replacement parts or a completely new pump must be dispatched as quickly as possible, and ADI stands ready to get the job done. We have a track record for making on-time deliveries no other pump manufacturer can match – it’s something we are proud of. It’s something you can rely on.


Gas Analyser filter particulates and moisture

Headline Filters

Headline Filters produce a wide range of products for the filtration industry, from filter elements, for coalescing or particulate duty, in a wide variety of industry-standard sizes to filter housings in a variety of materials for pressures up to 700 bar. To complement these products, we also offer a range of Membrane Separator housings for those applications requiring zero liquid entrainment.

Also available are disposable inline filters which offer the user a cost-effective and easy-to-replace robust filter suitable for portable analyser systems.

Headline Filters also produce adsorption products in a variety of forms, ideal for last-chance air purification and analyser protection. Disposable types eliminate the need to handle loose adsorbents although re-fillable versions are also available. Many different adsorbents are available to cater for virtually all requirements.


Compressed Air Filtration

These filters are suitable for a variety of gas and liquid applications. The disposable bonded microfiber filter elements are extremely efficient as well as being low cost. They offer high flow rates with very low pressure drops. All products conform to industry standard sizes and grades and are completely interchangeable with other manufacturers housings and filter elements.

The comprehensive product range enables greater flexibility for customers because of the greater choice. The development of new products is customer driven, with our engineers working closely with OEM customers and end-users. Special housings and filter elements developed to meet specific customer requirements and specifications are available.

A global distributor network, that includes all of Europe and the USA, South East Asia, Australia and South Africa, offers unbeatable delivery times and service. Along with over 29 years of experience & expertise all standard products are kept in stock.