Gas detection and gas warning device without certified measuring function for explosion protection.
This variant of the OLLI is NOT included in the list of function-tested gas warning devices of the BG RCI (see article 280010).
Explosion-proof, compact diffusion hand-held measuring device for up to five combustible and toxic gases as well as oxygen in an extremely durable 2-component plastic housing with three alkaline manganese primary cells.
Up to three gas sensors can be installed (Ex/Ox/Tox).
The device can optionally be equipped with a Li-ion battery pack, pump and pressure measurement. The configuration is carried out individually according to customer requirements.
Operating time > 50 hours (depending on the type and number of sensors installed and ambient conditions, without illumination)
Measuring ranges depend on the sensors installed.
Dimensions: 136 x 78 x 43 mm,
Weight: approx. 350 g
Explosion-proof measuring device,
Marking (ATEX):
II 2G Ex ib db IIC T4 Gb
BVS 17 ATEX E 043 X
Marking (IECEx):
Ex ib db IIC T4 Gb
IECEx BVS 21.0085X
Temperature range: -20°C <= Ta <= +50°C
Features of gas detector & gas warning device OLLI
Functions according to DVGW worksheet G 465-4
Individual device configuration possible for various applications
High-contrast LCD graphic display with backlight for an optimal display of all measured values
Practical additional functions (e.g. automatic start in the last used application, display of valuable additional information, etc.)
Simple and easy handling through intuitive menu navigation
Very long operating time
Brand new and highly effective filter technology
Wireless data transfer for quick and easy transmission of data
Practical accessories for all applications
Description of gas detector & gas warning device OLLI
The OLLI is an explosion-proof, multi range gas measurement device and LDAR gas warning device (leak detection and repair) for flammable & toxic gases and oxygen.
The device comes either in a diffusion version and can be equipped with an internal pump and pressure measurement. The well-known and easy-to-use operating concept with a menu navigation driven by two function keys and a ENTER button has been enlarged by an ESC/return button.
Manhole inspection: clearance measurement with OLLI
In the field of gas and water supply and sewage disposal, workplace monitoring and controlling the atmosphere in confined and enclosed spaces is a fixed and important part of work procedures according to DGUV Regel 113-004.
Before work can begin, it has to be ensured that there is no lack of oxygen and that the shaft atmosphere is free from harmful substances. Furthermore, it must be determined whether an explosive atmosphere can be ruled out. Especially for structures in the area of sewage disposal, a clearance measurement is mandatory.
Do you need a gas detector to inspect manholes? Then we offer you our OLLI, an effective gas detector with pump for combustible gases, toxic gases (H2S, CO, CO2) and oxygen, a perfect device for leak detection and repair (LDAR).
According to the German Employer's Liability Insurance Association (Berufsgenossenschaft), these gas warning devices "[...] are an aid to hazard reduction by detecting the presence of [flammable and] toxic gases and emitting suitable acoustic and/or optical warnings." (Quote DGUV Information 213-056).
In one of our workshops, the participants are taught necessary technical knowledge to perform clearance measurement in accordance with DGUV Principle 313-002.
Measurement data management with OLLI
It was not so long ago that printing on thermal paper was a revolution on the construction site. As an environmentally conscious and future-oriented company, we want to do without paper and at the same time make your everyday work easier.
With Esders Connect the measurement data will directly be send to your office via our App for your smartphone or tablet – fast, paperless, digitally and DSGVO compliant. You have the option of specifying up to three e-mail addresses in order to send the completed test reports to them. The recipients also receive the GPS data for the exact localisation of the measurement. The administration is clear and can be accessed from anywhere at any time.
Esders Connect is browser-based, so no updates are required and you always have the latest version available.
Measurement of gas volume
When purging pipelines, our OLLI can be used, equipped with a pressure sensor, in combination with our Mobile Gas Flares to measure the gas volume in the pipe. This also records the amount of methane or propane flared. This is important in the context of the documentation requirement for network operators arising from the EU Regulation to reduce methane emissions. The requirements of the DVGW regulations G 465-2 and G 404 are also implemented. You can find more information in our blog post
• Improved sensor technology and adjustment options • Increased operating temperature range of -20 to +50 ° C • By up to 44% larger display area for better readability • Red backlight for improved perception of alarm messages
• Cast carpet mat free from the material wear common in deep drawn mats
• Stabilising mould elements enable optimal fit on the ground and enable the carpet to be pulled backwards
• Comprehensive flow channels for sampling
• Usability test in accordance with G5952 or Esders express procedure • Leak detection via external, digital hand sensor with integrated calibration and vibration alarm • Automatic and manual test on controllers and safety valves • Leak test with 150 mbar, strength test with 1 bar • Pressure measurement up to 25 bar via external sensors
• Easy replacement of batteries with innovative battery Management • Systematic evaluation of the measured data using Esders PC-1 software • Graphical printout on site on mobile printer • Simple operation with intuitive menu navigation • Practical accessories for all applications
• Time-tested Esders operation concept. • Very quick initial break-in phase after being switching on or changing application. • Extremely short reaction times when measuring CH4 and CO2 in all concentrations. • Oxygen and up to 3 toxic gas sensors are available as an option. • Ethane analysis with automatic measurement result assessment can be integrated. • Optional pressure measuring up to 2,000 hPa.
• Rugged hand-held instruments with ergonomic aluminum housing • Wide range of applications in the gas and water installation • Load- and tightness tests according to TRGI • Powerful gas detector with vibration alarm and digital display reading for gas leak detection
• Operational life of two years • Full factory warranty throughout the life of 24 months • Measurement of H2S, CO and O2 ensures the safety of the worker • Reduces training time • Loud audible alarm, bright visual alarm, vibrating alarm
• Use of infrared sensors for CH4 and CO2 guarantee fast run-in period and extremely short response times and exclude cross-sensitivities to other gases. • An oxygen and a hydrogen sulphide sensor are offered as an option. • The measurement range for H2S is 0 to 2,000 ppm and cover the requirement for measurements at biogas plants ideal.
• Rugged hand-held instruments with ergonomic aluminum housing • Wide range of applications in the gas installation • Powerful gas detector with vibration alarm and digital display reading for gas leak detection • High contrast LCD display with backlight for an optimal presentation of all measured values
• The Esders Vakumobil has a markedly improved suction power compared to conventional technology. • The low pressure in the surface generated by one suction probe has an impact over several metres. • This creates only a movement or distortion of the gas accumulation but not there elimination.