HT-IQT Silicon Piezoresistive Pressure Sensor
Introduction of silicon pressure sensor:
HT-IQT is a flush diaphragm pressure sensor with a highly stable high temperature diffusion silicon chip. The sensitive chip does not directly contact the measured medium. The pressure is transferred to the sensitive chip through the stainless steel diaphragm and the sealing silicone oil, and the resistance bridge of the chip changes, resulting in a change in voltage, and the voltage changes to the millivolt level. This product is high temperature clamp structure, easy to clean will not produce crystallization in the thread end, easy to clean, simple installation, high reliability. Suitable for food, health and other industries.
Product Features of silicon pressure sensor: - Advanced technology and 316L stainless steel housing packaging
- Temperature compensation and zero point correction through thick film
- circuit Outstanding reliability, repeatability, and stability
Applications of silicon pressure sensor: - Suitable for measuring non-corrosive gas and liquid pressure with 316L stainless steel compatibility
- Food and beverage industry
- Pharmaceutical industry
Electrical performance of silicon pressure sensor: - Power Supply: ≤2mA DC (Typical 1.5mA DC)
- Input Impedance : 2.5KΩ~6KΩ
- Output Impedance: 2.5KΩ~6KΩ
- Electrical Connection: Gold-plated Kovar pins or 100mm high-temperature wires.
| Performance Parameters of silicon pressure sensor: |
| Measurement Range | Gauge(G) | 35KPa,100KPa,200KPa,350KPa,1000KPa,2000Kpa |
| Absolute(A) | 100KPaA,200KPaA,350KPaA,700KPaA,1000KPaA,2000KPaA |
| Sealed(S) | 3500KPaS |
| | Typ | Max | Unit |
| NonLinearity | ±0.15 | ±0.3 | %F.S |
| Repeatability | 0.05 | 0.1 | %F.S |
| Hysteresis | 0.05 | 0.1 | %F.S |
| Zero Offset Output | 0±1 | 0±2 | mV |
| Full Scale Output | ≤20KPa | 50±10 | 50±30 | mV |
| ≥35kPa | 100±10 | 100±30 | mV |
| Zero Offset Temp. Drift | ≤20KPa | ±1 | ±2 | %F.S |
| ≥35kPa | ±0.5 | ±1 | %F.S |
| Full Scale Temp. Drift | ≤20KPa | ±1 | ±2 | %F.S |
| ≥35kPa | ±0.5 | ±1 | %F.S |
| Compensated Temp. | ≤20KPa | 0~50 | ºC |
| ≥35kPa | 0~70 | ºC |
| Operating Temperature | -20~80 | ºC |
| Storage Temperature | -40~125 | ºC |
| Allowable Overload | Take the smaller value between 3 times the full scale or 120MPa | |
| Burst Pressure | 5X the full scale | |
| Long-term Stability | 0.2 % | F.S/Year |
| Diaphragm Material | 316L | |
| Insulation Resistance | ≥200MΩ 100VDC | |
| Vibration | No change under conditions of 10gRMS, 20Hz to 2000Hz | |
| Shock | 100g,11ms | |
| Response Time | ≤1ms | |
| O-ring Seal | Nitrile rubber or Fluoro rubber | |
| Filling Medium | Silicon Oil | |
| Weight | ~220g | |
| The parameters are tested under the following conditions: 1.5mA @25°C |
| Outline Construction |
| Dimension | 
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| Electrical connection and compensation |
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1. In the assembly, pay attention to the coordination of the core size and the transmitter housing to achieve the required sealing
2. During the housing assembly process, ensure that it is vertically aligned and apply even pressure to avoid jamming or damaging the compensation plate.
3. If the medium under test is incompatible with the core diaphragm and housing material (316L), special instructions should be provided when placing the order.
4. Avoid pressing the sensor diaphragm with hands or sharp objects to avoid deformation or puncture of the diaphragm and damage to the core.
5. Keep the pressure port of the gauge core open to the atmosphere to prevent water, water vapor or corrosive media from entering the negative pressure chamber of the gauge core.
6. If any pin changes, refer to the label on the actual core wire.
1.Q: What are the features of your pressure sensor transmitters?
A: High precision, durability, and excellent performance. Customization available. 2.Q: Can I customize special specifications?
A: Yes, our engineers can tailor products to meet specific needs. We provide OEM and ODM service 3.Q: What is your production capacity?
A: Our manufacturing facilities can produce up to 30,000 pressure sensor transmitters per month, so we are fully capable of meeting the needs of large-scale orders. However, it is advisable to contact our sales team in advance to ensure smooth production and delivery scheduling
. 4.Q: What's the typical delivery period?
A: 5~8 working day for standard models. Customized products may vary. 5.Q: How are the products priced? Any discounts?
A: Competitive pricing with discounts for bulk orders or long-term partners
. 6.Q: What is the warranty of your products? And after-sales service?
A: Our warranty time is 24 months after shipment, and our after-sales will respond with your questions in 24hrs, remote instruction by PC network is always available. 
