ACD11 oil filled sensor series are based on piezoresistive silicon pressure sensors packaged in a 316L stainless steel housing. The sensing package utilizes silicon oil to transfer pressure from the 316L diaphragm to the sensing element. The oil filled sensor supports I2C and SPI interface protocols, may come in a 3.3 or 5.0Vdc supply voltage.

This digital output pressure sensor is designed for o-ring mounting for the 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.


* 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

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Oil Filled Sensor

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
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
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)

Oil Filled Sensor

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)
ACD11 600K G 2 Model:ACD11-600K-G2
19mm Sensor 0-600Kpa Vent Gauge Ribbon Cable

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