19mm Mini 4-20mA Output Silicon Pressure Sensor For OEM Transmitter
19mm Mini 4-20mA Output Silicon Pressure Sensor For OEM Transmitter
HT19-4-20 Pressure Sensor
Introduction of silicon pressure sensor:
HT19-4-20 Silicon Piezoresistive Pressure Sensor
The HT19-4-20 is a high-stability piezoresistive pressure sensor featuring a precision diffused silicon sensing element. It accurately measures liquid and gas pressure by transmitting force through a silicon diaphragm and isolating the medium via a silicone oil-filled isolation diaphragm.
Equipped with a sophisticated amplifier circuit, it delivers a standardized 0.5–4.5VDC or 4–20mA output for seamless integration. Its robust design and versatility make it ideal for applications such as air compressors, refrigeration systems, and HVAC equipment.
Key Features:
- High long-term stability
- Media isolation for corrosive or sensitive environments
- Industry-standard output signals
- Reliable performance in demanding industrial applications
Applications of silicon pressure sensor:
- Suitable for measuring non-corrosive gas and liquid pressure with 316L stainless steel compatibility.
- Applied in various industrial process sites, including petroleum, chemical, metallurgy, power, and hydrology
- Used in marine and aviation industries.
- Suitable for hydraulic and pneumatic control systems
- Utilized in process control applications.
| Performance Parameters | |
| Measurement Range | -100kPa…0kPa ～ 10kPa…100MPa |
| Pressure Type | Gauge Pressure, Absolute Pressure, Sealed Pressure |
| Overload | ≤ 1.5 times of the rated range |
| Accuracy @ 25℃ | ±0.25% (Typical) ±0.5% (Maximum) |
| Repeatability& Hysteresis | 0.02%F.S(Typ.) 0.05%F.S(Max.) |
| Long-Term Stability | ±0.1%F.S/Year(Typ.) ±0.2%F.S/Year(Max.) |
| Performance Parameters (Continued) | |
| Zero Point Temperature Drift | ±0.02%F.S/℃(≤100KPa) ±0.01%F.S/℃(＞100KPa) |
| Full Scale Temperature Drift | ±0.02%F.S/℃(≤100KPa) ±0.01%F.S/℃(＞100KPa) |
| Compensation Temperature | 0-70℃(≤10MPa,customizable) |
| Operating Temperature | 0℃~70℃ |
| Storage Temperature | -40℃~120℃ |
| Vibration | 10g,55Hz ～ 2kHz |
| Diaphragm Material | 316L |
| Insulation Resistance | 100MΩ 100VDC |
| Weight | 30g |
Construction of silicon pressure sensor:
| Output | Power | Output |
| 0.5～4.5V 4-20mA | 5VDC / 12-32Vdc |
3 wire / 2 wire |
| Ordering tips |
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HT19-4-20 Pressure Sensor Assembly & Handling Guidelines
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Core-to-Housing Fit
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Ensure proper alignment between the core and transmitter housing to maintain required airtightness.
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Housing Assembly
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Keep the housing vertically aligned during assembly.
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Apply uniform pressure to prevent jamming or damage to the compensation plate.
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Material Compatibility
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If the measured medium is incompatible with the 316L housing or core diaphragm, specify this when ordering for customized solutions.
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Diaphragm Protection
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Avoid contact with hands or sharp objects to prevent deformation or puncture of the sensing diaphragm.
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Gauge Pressure Core Venting
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Keep the pressure port open to the atmosphere.
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Prevent moisture, steam, or corrosive media from entering the negative pressure chamber.
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Pin Lead Modifications
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Refer to the actual core label for correct wiring if pin leads are altered.
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| Q&A |
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.
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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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.