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Micro pressure gauge CA311-212 0~60kPa AT-3/8R * 75 * 60kPa
NegotiableUpdate on 05/13
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Overview
The KUSABA micro pressure gauge ASG3/875X20kPa is commonly used in medium and low pressure scenarios that require moderate measurement accuracy. For example, the airway pressure monitoring of small air compressors can provide real-time feedback on whether the equipment's gas production pressure is stable; The oil pressure detection of small hydraulic machine tools ensures that the pressure meets the standard during machine tool operation; It can also be used for pressure monitoring of ordinary industrial pipelines, civil gas auxiliary pipelines, etc. In addition, its miniaturized size is also suitable for installation in space limited locations such as instrument test benches and small equipment control cabinets.
Product Details
Migishita Seiki, lower right precision toolMicro pressure gauge CA311-212 0~60kPa AT-3/8R * 75 * 60kPa
Brand: MIGISHITA SEIKI, bottom right precision tool
Product Name: Micro pressure gauge
Model: CA311-212 0~60kPa (AT-3/8R * 75 * 60kPa)
Function: Overvoltage prevention device (optional)
Zero point adjustment payment device (this specification is optional)
Pressure range: 0~60kPa
Origin: Japan
Migishita Seiki, lower right precision toolMicro pressure gauge CA311-212 0~60kPa AT-3/8R * 75 * 60kPa
Distinguishing between G thread and R thread of pressure gauge
Micro pressure gauge (measured in kPa) is a pressure instrument used to measure low pressure ranges (usually several kPa to several hundred kPa, depending on the model). Its design and performance characteristics revolve around "precise measurement of small pressure changes", and it is widely used in scenarios that require high pressure sensitivity. The following are its core characteristics:
1. Strong range specificity, focusing on low pressure range
The range is usually concentrated in the low range of 0-60kPa, -10~50kPa (combining negative and positive pressure), and the Min. division value can be as low as 0.1kPa or even 0.01kPa, which can accurately capture small pressure fluctuations (such as wind pressure in ventilation systems, furnace micro pressure, slight pressure changes in gas pipelines, etc.).
Compared with conventional pressure gauges (mostly with a range of MPa), it avoids the problem of insufficient measurement accuracy in low pressure ranges caused by excessive range.
2. High sensitivity and high precision
Use sensitive elastic components (such as diaphragms, bellows, bellows, etc.) instead of the spring tube (Bourdon tube) of conventional pressure gauges. These components can undergo significant deformation under small pressure, and are amplified by mechanical transmission to drive the pointer, ensuring a sensitive response to low pressure.
The accuracy level is relatively high, commonly at 1.0 level and 0.5 level (with an error range of ± 1.0% and ± 0.5% of the measuring range), and some precision models can reach 0.25 level, meeting the precision requirements for low-pressure measurement.
3. Structural design adapted to micro pressure scenarios
Overload protection capability: Due to the low measurement range, overload protection devices (such as limit blocks) are usually installed inside to prevent damage to sensitive components due to accidental overpressure.
Flexible connection method: Small interfaces (such as R1/4, G1/4, R3/8, G3/8, etc.) are often used to adapt to fine pipelines or small equipment, with minimal impact on system pressure loss during installation.
Clear and easy to read dial: The dial has fine scales and optimized scale distribution for low pressure ranges (such as denser scales in the 0-10kPa range), making it convenient to read small pressure values.
4. Widely applicable media and environment
Media compatibility: It can measure gases (such as air, nitrogen) or low viscosity liquids that are non corrosive to copper and alloys, and some corrosion-resistant models (such as stainless steel materials) can be used for slightly corrosive media.
Environmental adaptability: It can work stably at room temperature and low vibration environment. Some models have dust-proof and moisture-proof design (such as IP54 protection), suitable for ventilation, air conditioning, laboratory, environmental protection and other scenarios.
5. Typical application scenarios
Ventilation and air conditioning system: Measure static pressure and dynamic pressure (such as ± 5kPa) inside the air duct.
Environmental Protection and Meteorology: Monitor slight changes in flue gas pressure and atmospheric pressure.
Laboratory: Calibrate low-pressure equipment and measure pressure inside small containers.
Food and medicine: Micro pressure control inside packaging equipment (such as the pre pressure stage of vacuum packaging).
summary
The core advantage of a micro pressure gauge (kPa level) lies in its high-precision and high-sensitivity measurement of low pressure. Through targeted range design and selection of sensitive components, it solves the problem of "inaccurate measurement and unclear reading" of conventional pressure gauges in the small pressure range. It is a common instrument in low pressure monitoring scenarios.
Migishita SeikiMicro- Pressure Gauge
CA311-212 0~60kPa AT-3/8R7560kPa
Brand: Migishita Seiki
Product Name: Micro Pressure GaugeModel:CA311-212 0~60kPa（AT-3/8R7560kPa）
Functions:Equipped with overpressure protection device (optional specification)Equipped with zero adjustment device (optional specification)
Pressure Range: 0~60kPaOrigin: Japan
Migishita Seiki Micro Pressure Gauge CA311-212 0~60kPa AT-3/8R7560kPaMicro Pressure Gauge CA311-212 0~60kPa AT-3/8R7560kPa
Difference between G Thread and R Thread for Pressure Gauges
Micro pressure gauges (kPa unit) are pressure instruments designed for measuring low pressure ranges (generally several kPa to hundreds of kPa, depending on models). Their design and performance characteristics are focused onaccurate measurement of tiny pressure changes, and they are widely used in applications requiring high pressure sensitivity. Core features are as follows:
1. Targeted Measuring Range, Specialized for Low Pressure
Measuring ranges are mainly low-pressure scales such as 0~60kPa, -10~50kPa (combined vacuum and positive pressure). Minimum graduation can be as low as 0.1kPa or even 0.01kPa, which can accurately detect minor pressure fluctuations, including wind pressure of ventilation systems, furnace internal micro pressure, slight pressure changes in gas pipelines, etc.
Compared with conventional pressure gauges (mostly in MPa range), it avoids insufficient measurement accuracy in low-pressure sections caused by excessively large measuring ranges.
2. High Sensitivity & High Precision
Adopts sensitive elastic elements (diaphragms, bellows, capsule elements, etc.), instead of Bourdon tubes used in ordinary pressure gauges. These elements produce obvious deformation under tiny pressure, and drive the pointer through mechanical amplification transmission, ensuring sensitive response to low pressure.
High accuracy classes are available, commonly Class 1.0, Class 0.5 (error within ±1.0% / ±0.5% of full scale). Some precision models reach Class 0.25, meeting strict accuracy requirements for low-pressure measurement.
3. Structural Design Optimized for Micro Pressure Conditions
Overload resistance: Internal overload protection devices (such as limit stops) are installed to prevent sensitive elements from being damaged by accidental overpressure, due to the low measuring range.
Flexible connection: Adopts compact thread ports (R1/4, G1/4, R3/8, G3/8, etc.), suitable for thin pipelines and small equipment, with little pressure loss to the system during installation.
Clear dial display: Fine dial scales with optimized scale distribution for low pressure sections (denser scales within 0~10kPa range), easy to read tiny pressure values.
4. Wide Compatibility of Media & Environment
Media compatibility: Suitable for non-corrosive gases to copper and alloys (air, nitrogen, etc.) and low-viscosity liquids. Some stainless steel corrosion-resistant models can be used for slightly corrosive media.
Environmental adaptability: Stable operation under normal temperature and low vibration conditions. Partial models feature dustproof and moisture-proof design (IP54 protection class), suitable for HVAC, laboratory and environmental protection fields.
5. Typical Applications
HVAC & ventilation systems: Measure static pressure and dynamic pressure inside air ducts (e.g. ±5kPa)
Environmental protection & meteorology: Monitor flue micro pressure and slight atmospheric pressure changes
Laboratories: Low-pressure equipment calibration and internal pressure measurement of small containers
Food & pharmaceutical industry: Micro air pressure control of packaging equipment (e.g. pre-pressure stage of vacuum packaging)
Summary
The core advantages of kPa-level micro pressure gauges are high-precision and high-sensitivity measurement for low pressure. With targeted range design and sensitive element selection, they solve the problems ofinaccurate measurement and unreadable indicationof conventional pressure gauges in micro pressure sections, and are common instruments for low-pressure monitoring applications.
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