AC23 series flat diaphragm pressure sensor is a flat membrane product developed based on AC13 series (no welding ring at the front end). This flat diaphragm pressure sensor is a silicon piezoresistive sensor with MEMS (Micro Electro Mechanical System) technology. This pressure sensor is a high-stability, high-precision OEM pressure sensor. Measuring core. This flat diaphragm pressure sensor is packaged with pressure chips from internationally renowned manufacturers. The external pressure is transmitted to the sensitive components through the 316L stainless steel diaphragm and the internal filling of silicone oil. The core is welded with the M20X1.5mm or G1/2 screw head made of stainless steel 316L material, and the pressure-sensitive diaphragm is placed at the front end of the screw head.
Each sensor has undergone strict zero-point and full-scale temperature compensation before leaving the factory, which ensures the measurement accuracy in complex environments.
* High stability and high precision
* Suitable for small and medium pressure (0-40Kpa…4Mpa)
* Wide temperature compensation range
* Corrosive media can be measured (compatible with 316L)a
* Standardized package size
* Typical output: 0-100mV
* Food and pharmaceutical industry
* Pressure gauge
* Liquid level measurement
* Pressure transmitter
| Parameters | Min. | Typical | Max. | |||
| Accuracy(%FS) | ||||||
| Non-Linearity1 | 40Kpa | ±0.20 | ±0.30 | |||
| >40Kpa | ±0.10 | ±0.20 | ||||
| Hysteresis 2 | ±0.05 | ±0.10 | ||||
| Repeatibility 3 | ±0.05 | ±0.10 | ||||
| Output(mV) | ||||||
| Zero | -5 | ±1 | 5 | |||
| Span(FS) | 70 | |||||
| Temp. characters | ||||||
| Operation Temp.(℃) | -40 | 125 | ||||
| Compensation Temp(℃) | 40Kpa | 0 | 50 | |||
| ≥100Kpa | -10 | 70 | ||||
| Zero Temp.error(%FS)4 | ±0.75 | ±1.0 | ||||
| Span Temp. error(%FS)4 | ±0.75 | ±1.0 | ||||
| Thermal hysteresis(%FS)5 | 0.1 | |||||
| Long term Stability | ||||||
| Zero (±%FS annual) | 0.1 | |||||
| Span (±%FS annual) | 0.1 | |||||
| Supply Current | 0.5 | 1.5 | 2 | |||
| Input Resistance | 2.0 | 2.5 | 3 | |||
| Output Resistance | 2.5 | 3.0 | 3.7 | |||
| Load Resistance(MΩ)6 | 5 | |||||
| Insulation Resistance(MΩ/50V)7 | 50 | |||||
| Pressure Range | 0-40Kpa…4Mpa | |||||
| Pressure Overload | 2X | |||||
| Pressure Media | Liquids and Gases compatible with 316L Stainless Steel | |||||
Remark:
1. Best fit straight line.
2. The pressure sensor performs the pressure from the minimum value to the maximum value (positive stroke) and the maximum value to the
minimum value (reverse stroke), and the deviation of the output value at any pressure with in the pressure range from the forward
stroke to the reverse stroke;
3. In the same test method as in 2, perform 3 forward and reverse stroke pressure cycles;
4. Compared with the output of 25 °C in the compensation temperature range
5. Zero output is the deviation value before and after the sensor performs a temperature cycle of -40~+125°C.
6. Increase the load resistance to reduce the measurement error
7. Between the lead and the outer casing
| Model | Description | ||||||
| AC23 | Flat diaphragm pressure sensor with screw head | ||||||
| Code | Power Supply | ||||||
| C | Constant Current | ||||||
| Code | Pressure Range | Gauge | Absolute | ||||
| 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 | * | * | ||||
| XX | Special | ||||||
| Code | Pressure Reference | ||||||
| G | Vent Gauge Pressure(W/O vent tube as default） | ||||||
| A | Absolute Pressure | ||||||
| S | Sealed Gage | ||||||
| Code | Fitting | ||||||
| 1 | M20X1.5(Stainless Steel：316L） | ||||||
| 2 | G1/2（Stainless Steel：316L） | ||||||
| X | Customized | ||||||
| Example： | |||||||
| AC23 | C | 600K | G | 1 | |||
| Flat diaphragm pressure sensor with screw head | Current Supply | 0-600Kpa | Vent Gauge | M20X1.5(Stainless Steel:316L） | AC23C-600K-G1 | ||
Note: Food-grade oil-filled products are also available
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