LPCM_070_CTP

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LPCM_070_CTP stands for Light Pipe Coupled Methane Sensor 0.7 metres Control and Telemetry Package. It is a flagship product of E + E Elektronik Australia Pty Ltd, and is an integral part of their suite of methane gas sensors. This light pipe coupled methane meter integrates the use of optical fibre technology to allow measurements to be taken with maximum accuracy and reliability. This article will explore the application field and working principle of the LPCM_070_CTP.

Application Field

The LPCM_070_CTP is used for remote sensing of methane gas concentrations as low as 0.1 parts per million (ppm). It is especially useful for locating and quantifying concentrations of natural gas, landfill gas, and gas emitted from coal seam and tight formation reservoirs. This methane meter is extremely versatile and can be used for both short-term and continuous monitoring in hazardous locations since the light pipe is completely enclosed and therefore intrinsically safe.

The package includes the high-precision E+E Elektronik PTFE-coated aluminium mirror as a reference source, a stainless-steel DIN43650B connector, and a photoelectric receiver. All components are housed in a wall-mounted enclosure, making the LPCM_070_CTP a convenient and completely contained light pipe coupled methane meter.

Working Principle

The LPCM_070_CTP uses an integrated Light Pipe to transmit a signal along a length of optical fibre from a transmitter to a receiver. A transmitter generates a light beam which is then delivered to the receiver by means of the Light Pipe. The signal is measured at the receiver and then the methane concentration is determined. This technique is known as Light Intensity Modulation (LIM) and is widely used in the industry.

The LPCM_070_CTP incorporates the latest in light pipe coupled methane sensing technology. The photo-receiver transduces the amount of light received from the transmitter into an electrical signal which is then amplified and converted into a digital signal. This digital signal is then decoded and used to calculate the methane concentration. The accuracy of the readings is further enhanced by the inclusion of an external temperature sensor and a reference source.

The LPCM_070_CTP also features a built-in safety system which constantly monitors the Light Pipe for any obstructions. If an obstruction is detected, the system will automatically voice an alarm informing the operator of the need to maintain the integrity of the Light Pipe for accurate readings.

Conclusion

Light Pipe Coupled Methane Sensors, such as the LPCM_070_CTP, provide cost effective and reliable services for both short-term and continuous monitoring of methane gas concentrations. The use of a Light Pipe coupled with the latest in light intensity modulation ensures superior accuracy and safety of monitoring methane concentrations. The LPCM_070_CTP is a great addition to E+E Elektronik Australia\'s suite of sensors and is ideal for hazardous locations since the light pipe is completely enclosed.

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