LD-P300 High-Precision Pressure Sensor with Multiple Digital Output Interfaces and Integrated Temperature Measurement
Product Overview This product is an intelligent digital pressure sensor designed for high-precision pressure measurement applications. It employs a hi...
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Product Overview
- This product is an intelligent digital pressure sensor designed for high-precision pressure measurement applications. It employs a high-performance signal processing chip and a highly stable, medium-isolated diffused silicon sensor, utilizing a highly integrated monolithic design that significantly enhances product reliability. The product incorporates digital temperature compensation and nonlinear correction technology, enabling high-precision pressure measurement within the compensated range. Additionally, it features an internal high-precision temperature sensor for simultaneous temperature measurement.
- Featuring an exceptionally wide supply voltage range down to 3.2V, it operates seamlessly with standard 3.3V embedded systems. The product supports switching between low-power and standard-power modes. Networking capabilities include operation as an RS48 slave, I2C slave, or SPI master/slave.
- The product covers the entire pressure range up to 100 MPa, offering both gauge pressure and absolute pressure types. Its structure adopts the industry-standard φ19mm diameter, constructed from 316L stainless steel to meet the demands of most application environments.
- This intelligent pressure sensor features multiple digital interfaces to fulfill diverse digital sensing requirements.
Technical Specifications
- Measurement Range: -100 kPa…0 kPa to 7 kPa…100 MPa (G-Gauge Pressure, A-Absolute Pressure, S-Sealed Gauge Pressure)
| No. | Measurement Range | Remarks | No. | Measurement Range | Remarks |
| 1 | 0kPa～7kPa | G | 10 | 0MPa～2MPa | G、A |
| 2 | 0kPa～20kPa | G | 11 | 0MPa～3.5MPa | G、A、S |
| 3 | 0kPa～35kPa | G | 12 | 0MPa～7MPa | A、S |
| 4 | 0kPa～70kPa | G、A | 13 | 0MPa～10MPa | A、S |
| 5 | 0kPa～100kPa | G、A | 14 | 0MPa～20MPa | A、S |
| 6 | 0kPa～200kPa | G、A | 15 | 0MPa～35MPa | A、S |
| 7 | 0kPa～350kPa | G、A | 16 | 0MPa～70MPa | A、S |
| 8 | 0kPa～700kPa | G、A | 17 | 0MPa～100MPa | A、S |
| 9 | 0kPa～1MPa | G、A |
- Overload: 1.5 times full-scale pressure or 110 MPa (whichever is lower)
- Pressure Accuracy
| Range/Grade | Gauge pressure | Absolute pressure | ||
| 100kPa≤X≤3.5MPa | 0kPa～10kPa＜X＜100kPa | 200kPa＜X≤100MPa | 0kPa～70kPa＜X≤200kPa | |
| C | ±0.1%FS | 0.25%FS | 0.1%FS | 0.25%FS |
| B | 0.075%FS | 0.1%FS | 0.075%FS | 0.1%FS |
| A | 0.05%FS | 0.075%FS | 0.05%FS | 0.075%FS |
| S | 0.02～3%FS | 0.05%FS | 0.02～3%FS | 0.05%FS |
*Note: The accuracy specified in the table represents the overall accuracy within the compensation temperature range.
- Temperature Accuracy
＜±0.1℃ @ (0℃～50℃)
＜±0.2℃ @ (-10℃～60℃)
＜±0.5℃ @ (-25℃～75℃)
- Power Supply: 3.2V～28V DC
- Power Consumption: 6.5uA@Low Power Lp (Typ.), 1.7mA@High Power Hp (Typ.)
- Output Signal: RS485 Slave (Modbus RTU), I2C Slave, SPI Master/Slave
- RS485 Baud Rate: 1200, 2400, 4800, 9600 (Default), 19200, 38400
- Electrical Connection: 1.5mm Pitch 7-Pin Connector ZH1.5-7P
- Compensation Temperature: -10℃～70℃ (Default), Customizable
- Operating Temperature: -30℃～80℃
- Storage Temperature: -40℃～85℃
- Insulation Resistance: 100MΩ @ 100V
- Long-term Stability: ±0.1%FS/Year
- Vibration: 20g, 20Hz～2000Hz
- Shock: 20g, 11ms
- Protection Class: IP65