I2C, SPI pressure sensor and transducer is based on piezoresistive silicon pressure sensors packaged in a 316L stainless steel housing. The pressure sensor supports I2C and SPI interface protocols, may come in a 3.3 or 5.0Vdc supply voltage.
The sensing package utilizes silicon oil to transfer pressure from the 316L diaphragm to the sensing element. I2C SPI pressure sensor is designed for o-ring mounting. The pressure transducer is suitable for applications where compatibility with corrosive media is required.
A custom ASIC is used for temperature compensation, offset correction, and provides a digital output of 10~90% or 5~95%. The circuit exceeds the latest heavy industrial CE requirements.
| Features: | Applications: |
| * Low cost OEM * Pressure range:0-10Kpa…35Mpa * ±0.5% Total Error Band * Compatible with corrosive media * Standard mounting size * I2C or SPI Interface protocols |
* Process control * Fresh and waste water measurements * Medical instruments * Pressure transmitters |
| Supply Voltage: 3.3Vdc | Ambient Temperature: 25°C (unless otherwise specified) | ||||||
| Parameters | Min. | Typical | Max. | Notes | |||
| Interface Type | I2C（ADDR，0X28H） | SPI (optional) | |||||
| Accuracy(%FS) | -0.1 | ±0.05 | 0.1 | combined linearity, hysteresis and repeatability. | |||
| Total Error Band（%FS） | ≤100Kpa | -1 | ±0.5 | 1 | includes calibration errors and temperature effects over the compensated range. | ||
| >100Kpa | -0.5 | ±0.3 | 0.5 | ||||
| Output Type | 10% — 90% （A type) | 5%-95%(B type) Optional | |||||
| Zero Pressure Output | 666 | Count Hex | |||||
| Full Scale Pressure Output(FS) | 399A | ||||||
| Resolution–Pressure(%FS) | 0.008 | 14bits | |||||
| Temp. Accuracy(℃) | -2 | 2 | over the compensated temperature range |
||||
| Resolution–Temp.(℃) | 0.1 | 8~11bits | |||||
| Operating Temp.(℃) | -40 | 125 | |||||
| Compensated Temp.(℃) | ﹤40Kpa | 0 | 50 | ||||
| ≧40Kpa | -10 | 70 | |||||
| Input Voltage(V) | 2.7 | 3.3 | 5.5 | ||||
| Current consumption |
Non-Sleep | 2.7mA | default (See Note1) | ||||
| Sleep mode | 2µA | optional | |||||
| Load Resistance（KΩ） | 10 | ||||||
| Insulation Resistance(MΩ/50V) | 50 | ||||||
| Response Frequency（HZ) | 2K | ||||||
| Pressure Range | 0-10Kpa…35Mpa | See ordering information | |||||
| Overpressure | 7Mpa | 1.5X | |||||
| Others except 7Mpa | 2X | ||||||
| Media–Pressure | Liquids and gases compatible with 316L Stainless Steel | ||||||
| Note1: Reduce response frequency can reduce the current consumption accordingly,Pls. contact factory if you want this option. | |||||||
CE Compliance:
EN55022 Emissions Class A&B
IEC61000-4-2(ESD): 8KV(air)/6KV(contact)
IEC61000-4-3 Radiated, Radio-Frequency Electromagnetic Field Immunity (3V/m, 80MHZ~1GHZ)
IEC61000-4-4 Electrial Fast Transient Immunity (1KV)
IEC61000-4-6 Immunity to Conducted Disturbances Induced by Radio Frequency Fields(150KHZ~80MHZ 3V Level)
IEC61000-4-9 Pulse Magnetic Field Immunity (100A/m Peak)
| Ordering Information | |||||||
| Model | Description | ||||||
| ACD11 | Diameter 19mm O Ring mounting | ||||||
| Code | Pressure Range | Gauge | Absolute | ||||
| 10K | 0-10Kpa | * | |||||
| 40K | 0-40Kpa | * | |||||
| 100K | 0-100Kpa | * | * | ||||
| 160K | 0-160Kpa | * | * | ||||
| 400K | 0-400Kpa | * | * | ||||
| 600K | 0-600Kpa | * | * | ||||
| 1M | 0-1Mpa | * | * | ||||
| 1.6M | 0-1.6Mpa | * | * | ||||
| 2.5M | 0-2.5Mpa | * | * | ||||
| 4M | 0-4Mpa | * | * | ||||
| 7M | 0-7Mpa | * | * | ||||
| 10M | 0-10Mpa | *(Sealed Gauge） | |||||
| 20M | 0-20Mpa | *(Sealed Gauge） | |||||
| 35M | 0-35Mpa | *(Sealed Gauge） | |||||
| XX | Special | ||||||
| Code | Pressure Reference | ||||||
| A | Absolute Pressure | ||||||
| G | Vent Gauge Pressure(W/O vent tube as default） | ||||||
| S | Sealed Gage | ||||||
| Code | Electrical | ||||||
| 1 | Connect Pins | ||||||
| 2 | Ribbon Cable(90mm as default) | ||||||
| Example： | |||||||
| ACD11 | 600K | G | 2 | Model：ACD11-600K-G2 | |||
| 19mm Sensor | 0-600Kpa | Vent Gauge | Ribbon Cable | ||||
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