高精度浸入鐘罩式壓力計
HUBER Dipping Bell Type Manometer 型號:PTF 4000- 主要壓力標準精度等級0.02% f.s.、解析度0.01 Pa、再現性0.005%。
- 應用:在低壓應用領域中的調整、測試及校正工作,可以得到最佳的測量結果,例如:實驗室、大學、無塵室、壓力傳送器、壓力感測器。
- 提供2種機型:±20mbar及+40mbar。
- 在德國“英戈爾施塔特技術應用科學大學(Technische Hochschule Ingolstadt)”的公開招標中得標。
- HUBER首款全新的浸入鐘罩式壓力計是在2015年秋天上市。
- 優點:直接顯示,不必操縱;藉由數據輸出,即能輕鬆的實現自動化…等。
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- 主要壓力標準精度等級0.02% f.s.、解析度0.01 Pa、再現性0.005%。
- 應用:在低壓應用領域中的調整、測試及校正工作,可以得到最佳的測量結果,例如:實驗室、大學、無塵室、壓力傳送器、壓力感測器。
- 提供2種機型:±20mbar及+40mbar。
- 在德國“英戈爾施塔特技術應用科學大學(Technische Hochschule Ingolstadt)”的公開招標中得標。
- HUBER首款全新的浸入鐘罩式壓力計是在2015年秋天上市。
- 浸入鐘罩式壓力計的基本原理:
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在樑式天平的一邊,裝有一個具有精確已知之有效橫截面積的懸掛鐘形空心圓柱,浸入具有低表面張力的密封液體中。樑式天平的另一邊,是放置砝碼的秤盤。
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壓力,透過鐘罩下面的液體傳導,導致了浮力。
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藉由從天平另一邊的秤盤中移除砝碼,壓力得到補償及因此從根本上得到測定。
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此種方法是基於基本定義中的「壓力等於力除以面積」。
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- 功能性:
- PTF4000是上述基本原理的最先進應用。
- 浸入式鐘罩,由薄壁不銹鋼管製成(頂部封閉),位在一個精密天平上,精密天平具有電子控制型式的力的補償功能。
- 待測壓力通過2條穿過鐘罩下方密封液體的管子,從而產生浮力。
- 測量因此產生的力,並以電子方式補償。
- 精密的控制演算法則,在考量環境因素(*選購HM30)的情況下進行計算,具有高精度及再現性。
- 優點:
- 直接顯示,不必操縱。
- 藉由數據輸出,即能輕鬆的實現自動化。
- 永久的再現性。
- 最理想的壓力變動的阻尼。
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- 測量範圍:
- 標稱範圍:-2000~2000 Pa(無欠載)。
- 第2個範圍:0~4000 Pa(有欠載)。
- 誤差限值:± 0.02 % FS。
- 解析度:0.01Pa。
- 測量單位:mbar、Pa、hPa、kPa、psi、mmHg。
- 測量值顯示:7段式LED,14 mm。
- 再現性:0.005 %。
- 穩定時間:~2.5 s。
- 電源電壓:12V DC,1.5A。
- 功耗:18 W(VA)。
- 淨重:25kg。
- 體積:400 x 240 x 700 mm。
- 串列介面:USB/RS 232(用於連接HM30小型氣象監測站)。
- 密封液體:氟素化學液FC-40。
- 選購:HM30小型氣象監測站,用於補償環境影響因素。
- 詳細規格、配件、軟體及選購,歡迎洽詢。
- 測量範圍:
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- Pressure measurement with the Dipping Bell-Primary Pressure Standard class 0.02% F.S.
- Fields of application: Best measurement results for adjustment- test- and calibration works in the field of low pressure applications. For example:
- Laboratory
- University
- Cleanroom measurements
- Pressure transmitters
- Pressure sensors
- 2 Versions available
- ±20 mbar
- +40 mbar
- HUBER INSTRUMENTE AG has won the public tender of "Technische Hochschule Ingolstadt".
- The first - new HUBER dipping bell was delivered in autumn 2015.
- Basic principle of the Dipping-Bell
- On one side of a beam balance, a hanging bell-shaped hollow cylinder (bell) with exactly known effective cross-sectional area immerses in a sealing liquid with low surface tension is mounted. On the other side from the beam balance a pan with weights.
- Pressure, conducted through the liquid under the bell, results in a buoyancy which is compensated by removing weights from the other side.
- This method is based on the basic definition: Pressure equals force divided by area.
- Functionality:
- The PTF4000 Pressure Primary Standard is a state-of-the-art application of this basic principle.
- The dipping-bell, made from a thin-walled stainless pipe – closed on the top, is located as underload on a precision balance with electronically controlled force compensation.
- The pressure to be measured passes through two tubes through the sealing liquid under the bell, thus resulting in a buoyancy.
- The resulting force is measured and compensated electronically.
- Complex control algorithms compute under consideration of environmental factors (optional) high precision and reproducibility.
- This results in the following advantages:
- Direct display without manipulation
- Easily automated by data output
- Permanent reproducibility
- Optimal damping of pressure fluctuations
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- Measuring range:
- Nominal range: -2000 ... 2000 Pa (Without underload)
- Second range: 0 … 4000 Pa (With underload)
- Error limit: ± 0,02 % FS
- Resolution: 0,01Pa
- Units of measurement: mbar, Pa, hPa, kPa, psi, mmHg, ….
- Measured value display: 7-Seg. LED, 14 mm
- Reproducibility: 0,005 %
- Settling time: ˜2,5 s
- Supply voltage: 12V DC, 1.5A (external Power Supply inclusive)
- Power consumption: 18 W (VA)
- Net weight: 25 kg
- Dimension: 400 x 240 x 700 mm
- Serial interface: USB / RS 232 for HM30 Meteo Station
- Sealing liquid: Fluorinert FC-40
- Option: Meteo Station for compensation of the environmental influences
- Please feel free to contact for detailed specifications, accessories, software and options.
- Measuring range: