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DKM/A-2

Product catalog summary

Operation and Application
The DKM/A-2 flow monitor operates on a float measuring principle and is suitable for mechanical engineering, central lubrication, circulation lubrication, and transformers. It features universal orientation, high reliability, high switch accuracy, viscosity compensation, and adjustable switch points. An EX-version is available according to the ATEX directive, and it offers high pressure resistance with threaded connections.

Materials
The device is available in brass and stainless steel versions. Wetted parts include springs made of 1.4571, FKM gaskets (with optional NBR, EPDM), hard ferrite magnets, and device bodies made of brass or 1.4571. Non-wetted parts include displays made of Makrolon® and nickel-plated brass.

Measuring Ranges
The switch range for oil with a density of 0.9 kg/dm³ varies by model: DKM/A-2/2 (0.5 – 1.6 l/min), DKM/A-2/3 (0.8 – 3 l/min), and DKM/A-2/7 (2 – 7 l/min). The maximum operating pressure is 300 bar for brass and 350 bar for stainless steel versions. The device supports a viscosity range of 30 cSt to 600 cSt and a maximum temperature of 120 °C (optional 160 °C). Measuring accuracy is ±10% of full scale.

Operating Data
For explosion-proof designs, refer to the ATEX directive operating instructions. Deviations in installation positions or operating conditions may increase measurement errors.

Technical Drawing and Summary of Types
Dimensions and weights vary by type, with detailed specifications provided for each model.

Electrical Data
The device offers ingress protection of IP65 or IP67, depending on the connector type. It features potential-free reed contacts and various connector options. The EX-version complies with the ATEX directive, with specific electrical parameters for gas and dust environments.

Contact Information
Meister Strömungstechnik GmbH is located in Wiesen, Germany. Contact details include phone, fax, and email, with further information available on their website.

Catalog excerpts

Flow Monitor & Flow Indicator A-2 OVERVIEW Operation - Float measuring principle Application - Mechanical engineering - Central lubrication - Circulation lubrication - Transformers Features - Universal orientation - High reliability - High switch accuracy - Viscosity compensated - Infinitely variable switch point adjustment by operator - EX-version according to ATEX directive available - High pressure resistance - Threaded connection, special thread on request Installation information - The operating instructions for DKM/A-2 Module BASICS / ...ATEX must be observed! - Download: www.meister-flow.com

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MEASURING RANGES 300 bar (Brass version) Operating pressure, max. - 350 bar (Stainless steel version) Pressure drop 0,02 - 0,2 bar Measuring accuracy ±10 % of full scale Changed operating data apply to the device in explosion-proof design according to ATEX directive. Refer to the Operating Instructions for DKM/A-2 Module ATEX. Download: www.meister-flow.com (1) The specified measuring- /switch ranges are valid for oils having a density of 0.9 kg/dm3 and a kinematic viscosity of 30 to 600 cSt, vertical installation of the device and flow direction from bottom to top. Other installation positions...

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SUMMARY OF TYPES Type Overall dimensions [mm] Weight

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ELECTRICAL DATA I ELECTRICAL CONNECTIONFor devices with switch contact 15x50 Change over (COC) (3) 250V ■ 1,5A ■ 50VA (4)Normally open (NOC) 230V ■ 3A ■ 60VAChange over M12x1 (-20 °C - 85 °C) 125V ■ 1,5A ■ 50VA (4)Normally open M12x1 (-20 °C - 85 °C) 125V ■ 3A ■ 60VA Change over PLC (3) 250V ■ 1A ■ 60VAEX-version in compliance with ATEX directive EC-Type examination EPS 13 ATEX 1 596 U For devices with switch contact 15x50 - Connector in compliance with EN 175301-803, Form C (DIN 43650, Form C) - Connector M12x1 - Cable (1 m) (5) EX-version in compliance with ATEX directive - Connector...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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