A monitoring system for transmitting test and measurement data from sensors located within a machine to a common evaluation unit located remote of the machine. The monitoring system includes sensors for monitoring the operating conditions of a machine. The data generated from each sensor is first transmitted to a common receiving module located within the machine. The receiving module than transmits the collected data to the evaluating unit.

Electronic sensor module

In measuring the concn of gas in static spaces or in flow pipes, gas is drawn into a sampling chamber in a housing connected to external electrical measuring means The housing has a threaded end for joining to a short connecting pipe and is combined with short or long protective means to form a single unit which can be matched to the prevailing conditions of flow etc The protective means include a metal grid, a pipe with a series of gas inlet holes, or a double-walled pipe with a belled nozzle The housing has a lateral test gas connection, closable by a plug when not in use, screwed into the housing at the sampling chamber level Applicable to a wide range of gas flow-rates and does not require time-consuming alignment with the flow Using the small protector, is suitable for pushing inside a sniffer pipe into the space behind a barrier

Measuring static or moving gas concns. by sampling - in chamber connected to protector independent of alignment

The invention relates to a device for protecting and sealing sensors, especially with respect to liquid, moist and muddy environments. Said device protects the sensors and ensures that the connectors thereof remain completely watertight in all environments, including liquid and moist environments. Said device consists of two machined pieces which are fastened together. The first piece is shaped like the finger of a glove and tapered to form a point. The interior of the piece is recessed, forming a chamber which houses the sensor. The cylindrical part of the first piece is perforated with several holes, bringing the sensor chamber into contact with the outside environment. The part of the machined piece opposite the point is tapped and threaded. The tapping enables the sensor to be inserted. The thread fastens said first piece to a second machined piece which allows the sensor wire and connector to pass through. The device is completely sealed and can be inserted into the end of a stick or directly into the end of the wire. According to the invention, the device is particularly useful for protecting gas, pH and other sensors which are used in difficult environments, including moist, liquid and muddy environments, and said device is especially useful for treating waste products and composting.

Universal device for fastening, protecting and sealing sensors

Device for fastening, protecting and sealing sensors

An intrinsically safe device for measuring methane conc. in gas extraction and gathering pipes, e.g. in mining applications, enables direct delay-free continuous measurement and is simple to construct. A conventional measurement chamber (1) is connected to an evaluation unit via an electrical measurement conductor (16). It is also connected via a gas tight screw connector to a cylindrical stub pipe (6) projecting into the gas pipe (4) into which it is screwed. The stub pipe is sealed at its lower end, has peripheral borings (7) near the end which incline upwards, and contains a baffle (8).

Stegmanns Walter

Papers

Safe methane gas conc. measurement device - uses chamber with stub sensor and gas tight screw connector projecting into pipe