Product catalog
- HM10 High - accuracy Pressure Sensor
- HM20 General - type Pressure Transducer Description
- HM22 High - accuracy Pressure Transducer
- HM23 Special Pressure Transducer for Air Conditioner, Refrigerating and Compressor
- HM23Y Special Pressure Transducer for Oilfield and Mining Well
- HM24 Economical Pressure Sensor and Transducer
- HM25 Industrial - type Pressure Transducer
- HM26 Ceramic Capacitor Pressure Transducer
- HM27 Vacuum / Absolute Pressure Transducer
- HM28 Sapphire Pressure Transducer
- HM29 Digital • Intellectual Pressure / Differential Pressure Transducer
- HM50 Anti - corrosive Pressure Transducer
- HM60 Anti - explosive Pressure Transducer
- HM70 Hygienic Flat - membrane Pressure Transducer
- HM80 High - temperature Pressure Transducer
- HM90 High - frequency Dynamic Pressure Transducer
- HM91 Micro Pressure Sensor and Transducer
Contact Us
南京宏沐科技有限公司
销售部地址：南京市高铁南站南广场
电话：400-063-9658
手机：18951963348同微信号
传真：025-52150140
邮箱：njhongmu@hmsensor.com
HM28 Sapphire Pressure Transducer
Description
HM28 sapphire pressure transducer adopts German HELM made high – accuracy sapphire pressure sensor and performs temperature and linear compensation through such high – patent technologies as specific signal extraction and peeling etc. The sapphire series is made up of mono – crystalline silicon insulated elements, without any lagging, fatigue, and creeping. Sapphire features very good elastic and insulation characteristics, without sensitivity to temperature change. Sapphire has very strong radiation immunity characteristics. Furthermore, silicon – sapphire semiconductor sensitive element will not occur P – N drifting. Therefore, HM28 series of product may widely used for such fields as airspace and aerospace, petroleum, chemical, metallurgical, electric power, marine, medical and pharmaceutical, protection of environment, and scientific research etc. to measure and control high – temperature gas, liquid, fluid, and colloid, which is ideal for measuring high – temperature medium.
Features of Product
☆ Measuring range: -100KPa ~ 0 ~ 4KPa…100KPa…1MPa…260MPa
☆ Wide range of medium temperature: -60～+200℃
☆ High accuracy☆ Good stability: ≤ 0.1% FS / year
☆ Designed with disturbance immunity
☆ Good corrosive resistance: Titanium – sapphire membrane
☆ Intrinsically safe explosion – proof
Application of Product
☆ Industrial site process pressure testing
☆ Power generation plane, nuclear power generation station, water conservancy, hydropower
☆ Airspace and aerospace field
☆ Marine and shipbuilding industry
☆ Petroleum and chemical industry
☆ Scientific research and laboratory calibration
☆ Food industry
Details
Measuring range | -100KPa ~ 0 ~ 4KPa…100KPa…1MPa…260MPa | |||
Overloading capacity | Two times of scale for 10MPa product, 1.5 times of scale for the others | |||
Type of pressure | Gauge pressure, absolute pressure | |||
Medium to be measured | All kinds of high – and low – temperature liquid and gas suitable for titanium alloy and stainless steel | |||
Overall accuracy | ± 0.1% FS | ± 0.25% FS | ± 0.4% FS | |
Medium temperature | -65～+150℃ | |||
Ambient temperature | -40～+85℃ | |||
Compensating temperature | -40～+120℃ | |||
Long – term stability | ± 0.1% FS / year | |||
Zero point temperature drifting | Typical: ± 0.015% FS / ℃ | Maximum: ± 0.03% FS / ℃ | ||
Sensitivity temperature drifting | Typical: ± 0.015% FS / ℃ | Maximum: ± 0.03% FS / ℃ | ||
Thermal lagging | ± 0.1% FS (typical) |
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Range of power supplying | 12 ~ 36V DC ( generally 24V DC) | |||
Signal output | 4～20mA / 1-5V DC / 0～5V DC / 0.5-4.5V DC | |||
Load resistance | ≤(U - 12) / 0.02Ω | |||
Insulation resistance | 100MΩ， 500V DC | |||
Response time (10% ~ 90%) | ≤2ms | |||
Enclosure protection degree | IP65 or IP67 | |||
Explosion – proof Class | Ex ia II CT5 | |||
Material of structure | Membrane: Titanium / silicon – sapphire | Enclosure: 1Cr18Ni9Ti stainless steel | ||
Weight | Approx. 250g | |||
Product selection
HM28 | Sapphire Pressure Transducer |
| Guideline of Selection | Sapphire Pressure Transducer | ||||||||||
| Type of pressure | Gauge pressure (G, may not be indicated); absolute pressure (A) | ||||||||||||
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| Range | Measuring Range | |||||||||||
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| 0 ~ X KPa or 0 ~ X MPa | ||||||||||||
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| Code | Overall accuracy (linear + repeatability + lagging) | ||||||||
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| 1 | ± 0.4% FS | ||||||||
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| 2 | ± 0.25% FS | ||||||||
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| 3 | ± 0.1% FS | ||||||||
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| Code | Signal Output (Standard power supply of energization | ||||||
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| A1 | 4 ~ 20mA (12 ~ 36V DC) | ||||||
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| V1 | 1 ~ 5V DC (12 ~ 36V DC) | ||||||
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| V2 | 0 ~ 5V DC (12 ~ 36V DC) | ||||||
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| V3 | 0.5 ~ 4.5V DC (12 ~ 36V DC) | ||||||
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| Code | Additional functions | ||||
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| F1 | M20 x 1.5 external thread | ||||
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| F2 | G 1 / 4 external thread | ||||
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| F0 | Special | ||||
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| W1 | Cable type (IP67, 2m) | ||||
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| W2 | Socket type (IP65, DIN 43650) | ||||
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| P | Flushed membrane type | ||||
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| E | Intrinsically safe explosion - proof type Ex ia II CT5 | ||||
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HM28 A( 0 ~ 1.0MPa) |
| — 2 | — A1 | — F1 | — W1 -P Sapphire Pressure Transducer | |||||||||
Tips of Selection
- The medium to be measured shall be compatible with the material contacting with the product.
- The code E, an additional functional code for selection, and intrinsically safe explosion-proof Ex ia II CT5 must be power supplied via safety barrier.
- Please contact us in case of the other special requirements and clearly indicate them when placing an order.
