German METROTEC oxygen measuring instrument

GermanyMETROTECOxygen measuring instrument

Herna SupplyGermanyMETROTECOxygen measuring instrumentDirectly purchased by the German headquarters, near30Years of experience in importing industrial products, original products, supporting selection, providing you with one-on-one solutions: stable delivery time, competitive pricing, with a presence in China8The large office provides relevant after-sales services.

1、 Company Profile

GermanyMETROTEC GmbHWe are a company specializing in oxygen detection and control technology in gases, established in1989year10Month, headquartered in GermanyKirchheim/TeckSince its establishment, the company has been continuously developing zirconia（ZrOResearch and production of oxygen measurement and control equipment.METROTECYu1995Obtained annuallyDIN EN ISO 9001Quality management system certification, and continuously maintain the effectiveness of the certification based on standard updates. Its clients include companies such as Daimler, Volkswagen, Opel, Siemens, Bosch, Honeywell, etc. Its business scope covers the German speaking region as well as Europe, the United States, and Asia.

2、 Product type

METROTECProvide a series of products focused on industrial gas analysis, mainly including:

Direct insertion oxygen probe（CMM/CSMWaiting series)

Heating extraction oxygen sensor（A15-NTheA19-NWaiting series)

Portable oxygen analyzer（GSMSeries)

Wall mounted or disk mounted oxygen analyzer

Sensor signal conversion and power supply module（U15-DigitalTheU16-DigitalEtc.)

Portable and Fixed Oxygen Analyzer (Oxygen Meter)

Sensor power supply and conversion module（Z15TheZ19Etc.)

3、 Main models

GSM-touch- Portable oxygen measuring instrument equipped with touch screen operation

GSM-basic-touch- Universal portable oxygen measuring instrument with touch screen display

GSM-V6- Equipped withLCDPortable oxygen analyzer with matrix display screen

GSM- Combination installation oxygen measuring instrument

U15-Digital—DINOxygen measurement and regulation module for rail installation

U16-Digital- With5Point calibration functionDINRail mounted measuring module

Z19- Rail mounted or wall mounted oxygen measurement module

Z15- Dedicated toA15/A15-NPower supply module for sensors

A19-N/NC- Universal basic heated oxygen sensor

CMM/CSM- Direct insertion high-temperature oxygen probe（CMMEquipped with a metal protective sleeve,CSMEquipped with ceramic protective sleeve

4、 Product Introduction

1. GSM-touchPortable oxygen measuring instrument

GSM-touchbelong toGSMThe series is a portable oxygen measuring instrument. Measurement principle based on heated zirconia（ZrO₂), through Nernst（Nernst）Principle calculation of oxygen partial pressure. The device is equipped with an integrated sampling air pump and a touch screen display for displaying the measured oxygen content. All parameters can be set according to the corresponding application. Equipment equipped separatelyH₂ Content reading interface, used to calculate the residual oxygen content in reducing atmosphere, and can display the redox function of various metals. In terms of technical parameters, range coverage100%to10⁻³¹bar O₂； The preheating time is10to15minute; The response speed is approximately2Seconds; The sample gas flow rate should be at least30rise/Hour; Provide two analog outputs（0/4..20 mAConfigurable) and three relay outputs; Equipped with EthernetRJ45Socket andUSB 2.0Interface.

2. GSM-basic-touchPortable oxygen measuring instrument

GSM-basic-touchisGSMA universal portable oxygen measuring instrument in the series. Measurement principles andGSM-touchConsistent, based on heated zirconia and Nernst principle. The device is equipped with a built-in measuring gas pump and a touch screen display for displaying the results of oxygen content measurement. Supports both linear and logarithmic display modes, with a measurement range covering from percentage concentration to trace level oxygen detection.

3. GSM-V6Portable oxygen analyzer

GSM-V6isGSMA portable universal oxygen analyzer in the series. The measurement principle is based on heated zirconia and provides oxygen partial pressure through Nernst principle. The equipment is equipped with a built-in measuring gas pump and a color sensorLCDMatrix display screen presents process parameters such as oxygen content, lambda value, carbon potential, and dew point in the form of digital and time curves. This device integrates a controller and adjustable limits, allowing for repetitive control of oxidation process conditions.

4. CMM/CSMSeries direct insertion oxygen probe

CMMandCSMThe series is an oxygen probe designed for direct insertion into furnace walls for online measurement. The core measuring element is a zirconia ceramic tube coated with platinum electrodes on both the inner and outer surfaces. The working principle is that zirconia becomes an oxygen ion conductor at high temperatures. When a reference air with a known oxygen content is introduced into the inner side of the probe and the outer side contacts the process atmosphere inside the furnace, the difference in oxygen partial pressure on both sides causes oxygen ions to migrate, generating an electromotive force (Nernst voltage) between the two electrodes. By measuring this voltage and combining it with the probe temperature (measured by a built-in thermocouple), the oxygen content in the furnace gas can be calculated. In terms of technical parameters, the measurement range of oxygen content is0.1 ppmto100% O₂； The probe can withstand temperatures up to1400°C(depending on the specific model).CMMThe series adopts metal protective sleeves,CSMThe series adopts ceramic protective sleeves to adapt to different high temperatures and atmospheric environments.

5. U15-DigitalOxygen measurement and regulation module

U15-DigitalisUA universal measurement module in the series, used to control oxygen sensors and convert sensor raw signals into residual oxygen content. The calculated residual oxygen content is based on the Nernst principle. This module is suitable forDINRail installation, available according to different models1Road or2The road can be freely configured0/4–20 mAOutput and2Road alarm relay output. Configuration can be achieved through integrated Bluetooth interface and freeMetrotecApplication completed. Equipment operation requires coordinationASeries orCSeries sensors. The power supply voltage is12–24 Vor100–240 VPower consumption (including sensors) is approximately100 W, ambient temperature0–45 °CWeight approximately1.5 kg, size approximately150×180×90 mm.

6. U16-DigitalOxygen measurement and regulation module

U16-DigitalAlso belonging toUSeries, used to control oxygen sensors and convert sensor raw signals into residual oxygen content. andU15-Digitalcomparison,U16-Digitalthrough5Point calibration provides more accurate measurement values throughout the entire measurement range. The device is suitable forDINInstallation and configuration of guide rails2A freely configurable0/4–20 mAOutput and2An alarm relay output. Configure through integrated Bluetooth interface andMetrotecApplication completed, requires pairingASeries sensor usage.

7. Z19Oxygen measurement module

Z19isZThe universal measurement module in the series is used to control oxygen sensors and convert sensor raw signals into residual oxygen content. The calculated residual oxygen content is based on the Nernst principle.Z19The measurement module can be installed on bothDINGuide rails can also be installed in a wall mounted manner. Module Configuration1A freely configurable0/4–20 mAOutput and1An alarm relay output, via Bluetooth interface andMetrotecConfigure the application and run it in conjunction withASeries sensors. Approximate weight0.5 kg, size approximately40×130×120 mm.

8. Z15power supply module

Z15It's for drivingA15orA15-NA power supply and signal conversion module designed for oxygen sensors. The module is installed in a die cast aluminum casing, equipped with connecting cables to ensure sensor heating and signal transmission, while providing a second interface for connecting subsequent processing electronic devices.

9. A19-N/NCHeated oxygen sensor

A19The series is a universal heated oxygen sensor used for extractive oxygen measurement. The measurement principle is based on heated zirconia and provides oxygen partial pressure through Nernst principle. This sensor is designed specifically for measurement in a measurement room, and its functionality requires a power supply module to operate.

10. A15-NCompact extractive sensor

A15-NIt is a compact extractive heated oxygen sensor suitable for lower temperature environments or extractive measurement scenarios. The sample gas is extracted from the testing chamber through a pump or pressure and flows through the sensor to complete the measurement.

5、 Advantages and Characteristics

Suitable for high temperature environments:CMM/CSMThe series adopts high-temperature resistant metal or ceramic protective sleeves, which can be directly inserted into high-temperature furnace gas for measurement. The probe can withstand temperatures up to1400°CIt can meet the needs of various heat treatment equipment.

Wide measurement range: The product measurement range covers from percentage concentration toppmandppbTrace level detection. with the help ofMETROTECThe product can obtain oxygen measurement values within seconds without adversely affecting the sensor system.CMM/CSMSeries oxygen content measurement range coverage0.1 ppmto100% O₂.

Modular design: The sensor, power supply, and transmission modules adopt a separate structure, which improves the flexibility of system configuration and facilitates daily maintenance and component replacement.UThe series measurement module adoptsDINThe guide rail installation method can be easily integrated into existing control cabinets.

High integration of portable devices:GSMThe series of portable measuring instruments integrates a sampling air pump and a display interface, and can independently complete on-site measurement tasks without additional configuration.GSM-touchThe measuring instrument is equipped with a touch screen operation panel, and all parameters can be set according to the application.

6、 Main applications

Heat treatment and industrial furnaces: used for monitoring oxygen potential in controlled atmosphere furnaces (carburizing, nitriding, brazing), sintering furnaces, annealing furnaces, and air cushion furnaces to ensure process quality and furnace atmosphere stability.

Automotive manufacturing industry: application in the heat treatment production line of metal components, in coordination withMETROTECThe oxygen sensor and measurement module monitor the oxygen content in the atmosphere, providing reference for the evaluation of processes such as oxidation, reduction, and carburizing.

Semiconductor and electronic manufacturing: used for purity monitoring of protective gases or reaction atmospheres during manufacturing processes, meeting the detection requirements for trace oxygen in gases.

Metal processing industry: Atmosphere control is carried out in the heat treatment process of steel, aluminum, etc., and the oxidation, reduction, and carburizing processes are evaluated based on the principle of zirconia measurement.

Laboratory research and analysis: used for oxygen determination in material research, chemical reaction processes, or gas purity analysis, meeting the needs of debugging analysis, laboratory measurement, and other scenarios.

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