oil vapour measuring with METPOINT OCV compact
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Measurement technology | METPOINT® OCV compact METPOINT® OCV compact: Continuous oil vapour measuring for more process safety Oil is an often underestimated risk in the processing of compressed air Oil occurs in many places in the compressed air system in the form of oil vapour or aerosols and can lead to significant quality problems. Using the METPOINT® OCV compact you can check your compressed air for residual oil vapour content permanently, precisely also meet the prescribed standards. Thus meeting your customers' trust with responsibility. Reliable measuring via innovative technology The METPOINT ® OCV compact has been specially developed for the measuring of hydrocarbon vapours and gases in compressed air applications. The detection levels are as low as one thousandth of a mg/m³ of residual oil content and are executed continuously in ongoing operation. Shortened measuring intervals enable the rapid and reliable display of even the smallest deviations. Documenting compressed air quality and identifying problems The measurement data can be utilised for documenting the compressed air quality and for identifying contamination sources. The values to be evaluated for accurate measuring are compensated for temperature and pressure. The requirements of ISO 8573 are thus fulfilled. The reference gas is generated internally via an integrated catalytic converter and ensures reproducible results. › Safe › Reproducible accuracy of the measurement values thanks to integrated reference gas generation › utomatic monitoring for the reference gas and A sensor electronics › ssuing and transferring of alarm signal messages I › Reliable › Measuring range from ≤ 0.01 to 2.5 mg/m³ › Pressure range from 3 to 50 bar(g) (from 16 bar(g) onwards a separately available additional pressure reducer must be installed upstream) › Continual and permanent monitoring of the oil vapour content › Data transfer to data logger and control centre with customary communication methods › 10-point calibration Intuitive user interface Easily legible display of oil vapour content Ro

Precision as a benchmark: the operating principle of oil vapour measurement in the METPOINT® OCV compact 2 Valve for interchanging between current compressed air sample and reference gas from the purifier 1 Gas inlet with integrated pressure limiter set for OCV operating conditions 3 Measuring cell, monitored with temperature and pressure sensors 4 Photo-ionisation detector PID (UV lamp and detector) 5 Gas outlet with silencer Additional information about METPOINT® OCV compact measuring technology can also be found in our YouTube video. The compressed air reduced by a pressure reducer 1 to...

Integrated reference gas generation The METPOINT® OCV compact has integrated reference gas treatment by means of a patented catalytic converter. The compressed air is hereby passed on to a heated catalytic converter surface and the hydrocarbons are decomposed catalytically to water (H2O) and carbon dioxide (CO2). This reference gas is then continuously routed in alternation with the normal compressed air sample into the measuring chamber and the oil content is measured with the photo-ionisation detector (PID). The measuring chamber is both regularly “cleaned” by this reference gas...

The advantages of the METPOINT® OCV compact at a glance Multiple point calibration Every METPOINT® OCV compact is calibrated at 10 points in the factory and the respective certificate is enclosed with the device. During calibration, a reference gas representing oil is routed into the METPOINT® OCV compact in defined concentrations via a calibrated gas mixer. The device is calibrated using the target/ actual comparison between the display on the gas mixer and on the METPOINT® OCV compact. To guarantee high reproducibility and measurement accuracy, we recommend that maintenance is carried out...

Defined measurement values according to ISO 8573-1 The METPOINT® OCV compact has been designed for the range 0.01 to 2.5 mg/m³. According to ISO 8573, the following limits are defined for the respective classes Solid particles, max. number of particles per m3 0.5 µm < d ≤ 1.0 µm Configuration for operating pressure The METPOINT® OCV compact can be adjusted to a wide operating pressure range (3 ... 50 bar) depending on the requirements of the compressed air system. Pressure reducers can adjust the system to your local requirements and provide you with flexibility for the application – even...

Applied EU Directives and harmonised standards 2014/68/EU Pressure Equipment Directive 2014/30/EU Guideline relating to electromagnetic EN 61010-1 Safety requirements for electrical equipment for measurement, control and laboratory use EN 61326-1 Electrical equipment for measurement, control, regulating and laboratory use EMC requirements

Optional equipment for the METPOINT® OCV compact Depending on compressed air system requirements, the OCV compact can be equipped with sampling probes for different measuring sections DN20-80 (1/2” – 1 1/2”) and customer-specific DN80-xx (from 3”) 1 . Stainless steel pipework as 6 x 1 mm (including screwed fittings) can also be provided to suit local circumstances for your system 2 . For applications with higher pressures up to 50 bar(g), a pressure reducer with manometer is available as an accessory in order to reduce the operating pressure to the pressure permissible for the OCV compact 3...

Our METPOINT® OCV compact in combination with a BDL data logger on wheels Check your complete compressed air system for oil vapour and find out where more intensive treatment is necessary - with our mobile measuring and analysis unit METPOINT® MCA. There are different equipment versions available depending on requirements. > Sensor system for monitoring residual oil content > Built-in network-capable data logger with touch display > Optionally available with integrated particle counter for the measurement of certain concentrations and sizes, with additional volume flow measuring device,...