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Military MR-DF3 Portable High-Precision Dynamic Gas Distribution Meter Manufacturer, Brand

MR-DF3 portable high-precision dynamic gas distribution meter is easy to carry and can be used for emergency gas distribution work. It can work continuously for more than 20 hours after power failure.

Equipment to realize dynamic gas distribution. The gas distribution part uses imported high-precision mass flow controllers to control the flow rates of multiple gas outputs in different proportions, thereby dynamically realizing the configuration of various gas concentrations. This instrument can be used to test a variety of technical indicators such as linearity, accuracy, and repeatability of gas analyzers. It is an indispensable test tool for calibration, maintenance, and repair of gas analysis instruments as well as a dilution device for fixed concentration gases.

It is suitable for calibration of gas analyzers used in factories, scientific research, laboratories and other units, and preparation of standard gas samples for testing.

Product Description

Main Features

  • Complies with HJ57-2017, HJ604-2017, and HJ38-2017 standards for gas distribution; supports ppb, ppm, and percentage level concentrations.
  • Customizable multi-channel options (dual, three-channel, etc.) for composite gas distribution based on specific needs.
  • Equipped with high-precision stainless steel mass flow controllers and rotameters for reliable accuracy.
  • Large LCD screen interface for stable system operation and user-friendly control.
  • Closed-loop fuzzy control technology ensures fast response and precise flow management.
  • Real-time monitoring of zero air and cylinder air pressure to maintain optimal instrument requirements.
  • Integrated gas path cleaning function to ensure accuracy and prolong equipment life.
  • Instant start: No preheating time required, allowing for immediate gas distribution upon startup.
  • Portable design with a built-in lithium battery, supporting up to 20 hours of continuous operation.

Application Areas

Metrology Institutes Certification Agencies Laboratories Scientific Research & Development Detector Manufacturing

Technical Parameters

Mass Flow Controller Range Selectable according to user requirements
Flow Accuracy < 1% F.S
Flow Linearity ± 0.3% F.S
Flow Repeatability ± 0.2% F.S
Turndown 100:1 (Customizable)
Maximum Ratio 1000:1 (Customizable)
Input Pressure 100Kpa ~ 500Kpa (Customizable)
Usage Environment Temperature: -10℃ ~ +50℃; Humidity: < 80%RH (No condensation)
Equipment Pressure Resistance < 1Mpa
Working Pressure Difference 0.05Mpa ~ 0.3Mpa
Working Power Supply 110VAC ~ 240VAC, 50±0.5Hz; Built-in battery (20h life)
Dimensions 420 x 200 x 350 mm
Weight 8 Kg
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Frequently Asked Questions

What concentrations of gas can this instrument distribute?
The system supports multi-channel gas mixing for various concentrations, including ppb level, ppm level, and percentage level standard gases.
Is the gas distribution channel count fixed?
No, the device is highly customizable. We can provide dual-channel, three-channel, or multi-channel composite gas distribution systems based on your specific needs.
How long does the device need to warm up before use?
No preheating time is required. The instrument is designed to start gas distribution immediately after it is turned on.
Is this equipment suitable for field work?
Yes, it is highly portable, weighing only 8kg, and features a built-in lithium battery that allows for 20 hours of continuous work without an external power source.
How is the flow accuracy ensured?
The system uses high-precision stainless steel mass flow controllers and closed-loop fuzzy control technology to maintain a flow accuracy of less than 1% F.S.
What are the environmental requirements for operation?
The instrument operates effectively in temperatures ranging from -10℃ to +50℃ with relative humidity below 80% (non-condensing).

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