Nexisense Compensating Micro Manometer BYJ-1500 / BYJ-2500 | High-Precision Micro Pressure and Differential Pressure Measuring Instrument

Nexisense Compensating Micro Manometer BYJ-1500 and BYJ-2500 Series

Nexisense compensating micro manometer BYJ-1500 and BYJ-2500 series are precision instruments specially developed for measuring micro pressure, negative pressure and differential pressure of non-corrosive gases. The product adopts a classic compensating liquid column structure, achieving high-precision reading by compensating liquid level changes through the position of the movable water chamber. The measuring ranges are -1500～+1500Pa and -2500～+2500Pa respectively, with a minimum graduation value of 0.01mm. The basic error is controlled at ±0.4Pa (-1.5～+1.5kPa range) or ±0.5Pa (higher range). The scale plate uses mmH2O as the unit, with clear and intuitive indication.

The product consists of a fine-tuning part, leveling observation part, reflector part and shell part, equipped with a fine-tuning dial, long screw, leveling head, reflector, level bubble and adjusting screws, ensuring convenient operation and accurate reading. It can be used alone for micro pressure measurement or paired with a pressure regulator as a standard source for pressure instrument calibration. Nexisense is oriented toward engineering solutions. Through high-quality materials and precision mechanical structures, it ensures the long-term stability and repeatability of the instrument, helping laboratories, metrology units and industrial sites achieve reliable micro differential pressure detection and meet the stringent requirements of scientific research, teaching and production process control.

Product Highlights

Accurately Solving Pain Points in Micro Pressure Measurement

Micro pressure and differential pressure measurement often face problems such as difficult reading, poor stability, large environmental interference and difficulty in guaranteeing accuracy. Especially in laboratories or industrial sites, traditional instruments are easily affected by liquid level fluctuations and operation errors. The Nexisense compensating micro manometer adopts a compensating structure and multiple observation designs, effectively solving these engineering challenges and providing a clear, stable and high-precision micro pressure measurement method.

Three Core Selling Points

• Excellent Stability: The compensating structure offsets liquid level changes by adjusting the water chamber position, combined with level bubble and adjusting screws, ensuring the instrument maintains stable readings in different environments.

• High-Precision Measurement Capability: Minimum graduation value of 0.01mm, basic error as low as ±0.4Pa, supporting accurate detection of micro pressure, negative pressure and differential pressure.

• Convenient Operation: Fine-tuning dial and reflector design, clear and intuitive indication, compact structure, suitable for quick deployment and use in laboratories and on-site.

Product Overview

Nexisense compensating micro manometer is a classic precision instrument for measuring micro pressure of non-corrosive gases. Its core value lies in providing reliable micro pressure references for laboratories and industrial sites: precise compensation of liquid column height is achieved through the compensation principle, and the scale unit mmH2O is intuitive and easy to read. It can independently measure positive pressure, negative pressure and differential pressure, and can also be used with a pressure regulator as a standard source for calibrating other pressure instruments.

The product has a beautiful appearance and reasonable structure, and is widely used in laboratories of universities, metrology units and coal mine enterprises. Nexisense focuses on engineering practicality. Through leveling observation and reflector assistance, it ensures that operators can quickly and accurately complete readings and reduce human errors. The instrument provides a stable foundation for micro differential pressure control, teaching experiments and process monitoring, helping users improve measurement accuracy and work efficiency.

Core Advantages

Hardware Material and Structural Advantages

The instrument consists of a fine-tuning part, leveling observation part, reflector part and shell part. The long screw drives the water storage cylinder to move up and down, and the indication slider indicates the displacement height along the scale; the leveling head in the observation cylinder is used to observe liquid level changes; the reflector reflects the contact between the leveling head and the liquid surface, so that the tip coincides with the reflection to achieve precise “base point” adjustment; the shell is equipped with a level bubble and adjusting screws to ensure the instrument is vertical and level. The overall structure is sturdy, with good sealing performance, suitable for non-corrosive gas media.

Precision and Stability Optimization

The compensating principle effectively improves reading stability by compensating liquid level fluctuations through changes in the position of the movable water chamber. The minimum graduation value is 0.01mm. The basic error of BYJ-1500 is ±0.4Pa, and for BYJ-2500 it is ±0.4Pa in the -1.5～+1.5kPa range and ±0.5Pa in higher ranges. The fine-tuning dial is marked with 200 divisions, combined with the long screw to achieve fine adjustment, with strong resistance to environmental vibration and temperature fluctuation interference, and good long-term repeatability.

Observation Convenience and Ease of Use

The reflector and leveling head design significantly improves reading clarity and avoids parallax errors. The level bubble and adjusting screws facilitate on-site leveling, and the fine-tuning dial is easy to operate. Although it is a mechanical instrument, its stable structure gives it good anti-interference performance in complex laboratory environments. It can be used as a standard auxiliary device for pressure calibration and is easy to integrate with other pressure regulating devices.

Through the above advantages, the Nexisense compensating micro manometer provides a highly reliable and easy-to-operate solution for micro pressure measurement engineering projects, helping users achieve precise pressure differential control and metrology traceability.

Technical Parameters

The following are the main technical parameters of the Nexisense compensating micro manometer:

Scale unit: mmH2O　Working medium: non-corrosive gas　Structural composition: fine-tuning part, leveling observation part, reflector part, shell part

The product can be paired with a pressure regulator for pressure instrument calibration to meet laboratory precision measurement needs.

Application Scenarios

Nexisense compensating micro manometer, with its high precision and stable characteristics, is suitable for the following typical scenarios:

1. Laboratory Precision Measurement: In universities and research institutions, used for teaching experiments and scientific research of micro pressure, negative pressure and differential pressure, providing accurate mmH2O reading support.

2. Metrology Unit Traceability Calibration: As a standard auxiliary device, paired with a pressure regulator to calibrate other micro pressure instruments or low-pressure sensors, meeting metrology verification requirements.

3. Coal Mine Enterprise Ventilation Monitoring: Detecting micro differential pressure in coal mine underground or ventilation systems to ensure safe production and ventilation efficiency.

4. Clean Room and HVAC System: Monitoring positive and negative pressure differences in clean rooms, filter pressure drops or duct micro pressure, supporting environmental control and equipment commissioning.

In addition, it can be extended to fields such as pharmaceutical workshop differential pressure verification, medical equipment testing and industrial process micro pressure control, providing consistent and reliable support for various micro pressure-related measurements.

Installation and Operation Guide

Nexisense compensating micro manometer is a desktop mechanical instrument with simple installation and no need for electrical wiring or complex debugging.

Operation Steps Prompt:

• Place the instrument on a stable workbench, adjust the instrument to a level state through the base adjusting screws and level bubble, and ensure that the long screw and dynamic pressure tube are vertical.

• Connect the static pressure nozzle and dynamic pressure nozzle to the measured gas pipeline respectively (non-corrosive gas).

• Turn the fine-tuning dial, adjust the water storage cylinder position through the long screw, so that the tip of the leveling head coincides with its reflection in the reflector to complete the “base point” adjustment.

• Apply the measured pressure, observe the changes of the leveling head and liquid surface, and read the pressure value through the indication slider and scale plate (unit mmH2O).

• After measurement, slowly release the pressure, clean the nozzles and properly store the instrument.

During operation, keep slow adjustment to avoid violent liquid level fluctuations. The reflector assistance can significantly improve reading accuracy. For the complete operation process, zero point adjustment method and maintenance precautions, please refer to the product instruction manual attached. It is recommended to be performed by personnel familiar with micro pressure measurement.

Precautions for Use:

• Only suitable for non-corrosive gas media; avoid liquids or corrosive gases from entering.

• Regularly check the level bubble status and keep the instrument level.

• Avoid violent vibration or tilting to protect glass components and precision screws.

• When not in use for a long time, clean and store dry.

Frequently Asked Questions

Q1. How to choose the measuring range of the Nexisense compensating micro manometer?

BYJ-1500 is suitable for -1500～+1500Pa scenarios, and BYJ-2500 is suitable for higher range -2500～+2500Pa requirements. Users can choose the appropriate model according to the actual micro pressure size.

Q2. What is the accuracy and graduation value of this micro manometer?

Minimum graduation value 0.01mm, basic error ±0.4Pa (low range) or ±0.5Pa (high range), meeting the requirements of laboratory and industrial micro pressure precision measurement.

Q3. How to ensure reading accuracy?

Adjust the base point by making the tip of the leveling head coincide with its reflection in the reflector, level the instrument with the level bubble, and slow fine-tuning can significantly reduce parallax and operation errors.

Q4. Can it be used for pressure instrument calibration?

Yes, when paired with a pressure regulator, it can be used as a standard source for calibrating other low-pressure or micro pressure instruments to meet metrology and maintenance needs.

Q5. What are the requirements for the installation environment of the instrument?

It needs to be placed on a stable workbench without violent vibration, kept in a level state, and avoid high temperature, humidity or corrosive environments.

Q6. What are the key points of maintenance?

Regularly clean the nozzles and scale plate, check the sealing condition, avoid colliding with precision components, and keep dry when stored for a long time.

Summary and Next Steps

Nexisense compensating micro manometer BYJ-1500/BYJ-2500 series provides a stable and reliable engineering solution for micro pressure measurement of non-corrosive gases with its compensating structure, high-precision reading and convenient operation. Its performance in stability, measurement accuracy and practicality helps laboratories, metrology units and industrial users effectively improve micro pressure detection levels and process control quality.

If your project involves micro differential pressure monitoring, pressure instrument calibration or laboratory precision experiments, please feel free to contact the Nexisense technical support team. We will provide professional model selection guidance, operation training or prototype testing services to jointly build a micro pressure measurement system that meets actual working conditions. Take action now to obtain detailed technical information or schedule a technical exchange, making every micro pressure measurement a reliable engineering cornerstone.