HT20 Differential Pressure Sensor
Introduction of differential silicon pressure sensor:
The HT20 differntial silicon pressure senor is a silicon
piezoresistive differential pressure sensor with a core
of highly stable diffused silicon element. The core is
enclosed in a 316L stainless steel housing, and the pressure is transmitted through a
stainless steel diaphragm and sealed silicon oil to the sensitive chip. The
sensitive chip does not directly contact the measured medium, forming a fully solid-state
structure for pressure measurement, enabling precise measurement of differential
pressure. Therefore, this product can be applied in various scenarios that
require differential pressure measurement, including harsh and corrosive
environments
Product Features of differential silicon pressure sensor:
- Stable and reliable performance
- High resistance to static pressure
- Cost-effective
- Utilizes silicon piezoresistive oil-filled pressure-sensitive
element
Applications of differential silicon pressure sensor:- Differential pressure detectiony
- Pressure calibration instruments
- Liquid level measurement
- Industrial process control
Electrical performance of differential silicon pressure sensor:- Power Supply: ≤2mA DC (Typical 1.5mA DC)
- Input Impedance:3KΩ~6KΩ
- Output Impedance:2.5KΩ~6KΩ
- Electrical Connection:Gold-plated Kovar pins or 100mm
high-temperature wires
| Performance Parameters of differential silicon pressure sensor: |
| Measurement Range | 10KPa,35KPa,100KPa,200KPa,350KPa,1000KPa,2000Kpa |
| | Typ | Max | Unit |
| Linearity | ±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 4MPa | | |
| 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 | ~45g | | |
| The parameters are tested under the following conditions:
1.5mA @ 25°C | |
| Outline Construction |
| Dimension |  |
| Notes:The outgoing end is the positive terminal. If there are any
changes in the wire colors, please refer to the label attached to
the sensor for accurate information |
| Electrical connection and compensation of differential silicon pressure sensor |
|
1. Pay attention to the fit between the core size and the
transmitter housing during assembly to achieve the required airtightness
2. During the assembly of the housing, ensure it is aligned
vertically and apply even pressure to avoid jamming or damaging the
compensation plate.
3. If the measured medium is not compatible with the core diaphragm
and the housing material (316L), special instructions should be
provided when placing the order.
4. Avoid pressing the sensor diaphragm with hands or sharp objects
to prevent damage to the core due to diaphragm deformation or
piercing.
5. Keep the pressure port of the gauge pressure core open to the
atmosphere and prevent the entry of water, water vapor, or
corrosive media into the core negative pressure chamber.
6. If there are any changes to the pin leads, follow the label on
the actual core for reference.
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.
