1. Rated Pressure Range: The rated pressure range is the pressure range that meets the standard specifications. In other words, it's the pressure range within which the sensor outputs pressure that conforms to the specified operating characteristics, between the highest and lowest temperatures. In practical applications, the pressure measured by the sensor falls within this range.
2. Maximum Pressure Range: The maximum pressure range refers to the maximum pressure the sensor can withstand for an extended period without causing a permanent change in its output characteristics. Semiconductor pressure sensors, in particular, typically have a significantly reduced rated pressure range to improve linearity and temperature characteristics. Therefore, they can be used continuously above the rated pressure without damage. Generally, the maximum pressure is 2-3 times the highest rated pressure.
3. Damage pressure: Damage pressure refers to the maximum pressure that can be applied to the sensor without damaging the sensor element or sensor housing.
4. Linearity: Linearity refers to the maximum deviation of the linear relationship between the sensor output and the pressure within the working pressure range.
5. Pressure hysteresis: The difference in sensor output as the sensor approaches a certain pressure from the minimum and maximum working pressures at room temperature and within the working pressure range.
6. Temperature Range: The temperature range of a pressure sensor is divided into the compensated temperature range and the operating temperature range. The compensated temperature range is the temperature range within which accuracy is brought within the rated range after temperature compensation is applied. The operating temperature range is the temperature range within which the pressure sensor ensures normal operation.
Technical parameters (measuring range 15MPa-200MPa)
Parameters, units, and technical indicators
Sensitivity mV/V 1.0±0.05; Sensitivity temperature coefficient ≤%F·S/10℃ ±0.03
Nonlinearity ≤%F·S ±0.02～±0.03 Operating temperature range (°C): -20℃～+80℃
Hysteresis ≤%F·S ±0.02～±0.03 Input resistance Ω 400±10Ω
Repeatability ≤%F·S ±0.02～±0.03 Output resistance Ω 350±5Ω
Creep ≤ %F·S/30min ±0.02 Safe overload ≤ %F·S 150% F·S
Zero-point output ≤%F·S ±2; Insulation resistance MΩ ≥5000MΩ (50VDC)
Zero-point temperature coefficient ≤%F·S/10℃ ±0.03 Recommended excitation voltage V 10V-15V
