Robust, versatile and reliable multi-range gas measurement for pipelines and gas suppliers

Esders’ OLLI explosion-proof gas warning and measuring instrument detects flammable and toxic gases, as well as oxygen, and operates in several different measuring ranges. The OLLI covers a very wide range of applications and individual device configurations for different areas of application are available.

The OLLI combines a multitude of different functions in one device. Customers can decide which sensors, which measuring ranges and whether the device is to be operated with an accumulator or batteries. Customers can also choose between a diffusion device and a device with an integrated pump. On request, the OLLI can be delivered with customer-specific settings.

Protected by an ergonomic and extremely rugged two-component synthetic housing, the OLLI provides protection class IP 67 and offers functions and menus according to international standards and regulations. The measuring range for combustible gases (methane) covers 0 to 100% LEL and 0 to 100% by volume. The lower measuring range (ppm) is optionally available, so that the device can also be used for gas detection in domestic installations. For carbon monoxide the measuring range is 0 to 1000 ppm, for hydrogen sulphide 0 to 200 ppm. To determine the oxygen content during the commissioning of gas pipelines, the OLLI operates in the range of 0 to 25 volume percent for oxygen with appropriate sensor technology.

With the combination of the measurement of combustible gases, carbon monoxide and hydrogen E, the OLLI is also suitable for initial use in the event of malfunction reports of biogas plants. With the optional infrared sensor for combustible gases and carbon dioxide, the OLLI becomes a specialist for confined space entry.