I. Product Overview
It is widely used in various pipeline pressure tests, especially in equipment such as oil fracturing and well killing. It is particularly suitable for measuring harsh working conditions such as high-pressure crude oil, oil sludge, sand slurry, and sludge water. It is the first choice for high-pressure measurements in fracturing trucks, cementing trucks, etc., and can replace imported products.
II. Application Features
- The hard blind hole probe structure is especially suitable for measuring the pressure of viscous sand and other media, effectively preventing excessive abrasion of the sensitive probe by the media.
- Different materials can adapt to various complex media working conditions, improving the reliability of the product.
- High-precision strain measurement technology is adopted to ensure accurate pressure measurement.
III. Structure and Working Principle
The internally pasted strain circuit converts the medium pressure into an electrical signal, which is then converted into a standard output signal through high-precision digital amplification and other circuits.
IV. Operating Environment
- Ambient temperature: -30~70℃;
- Relative humidity: ≤90% (25℃);
- Atmospheric pressure: 80～106KPa;
- Can be used in complex working conditions;
- The environment has no strong vibration and impact;
- Suitable for measuring the pressure of various liquids, gases, powders, slurries, etc., that are compatible and do not react with the contact medium materials.
Main technical parameters for general applications:
Basic range | 0 ～ 0.3 ···220MPa |
Overload | Full scale less than100When at MPa 1.5 times the full scale pressure, Full scale greater than or equal to100When at MPa 1.2 times the full scale pressure |
Destruction pressure | Full scale less than100When at MPa 2 times the full scale pressure, Full scale greater than or equal to100When at MPa 1.5 times the full scale pressure |
Accuracy | 0.1%FS 0.2%FS 0.25%FS 0.3%FS 0.5%FS 1%FS |
Working temperature range | -30℃～70℃ |
Temperature compensation range | -20℃～60℃ |
Stability | ≤±0.2%FS |
Supply voltage | 12 ～ 32VDC (typical value24VDC) |
Output signal | 4～20mA(Two-wire system),0.5～4.5VDC, 0～10VDC, 0.25～2.5VDC, 0～5VDC, RS485, RF, MV sensor original signal |
Insulation resistance | 500MΩ/250VDC |
Protection level | IP67 |