Vibration Limit Switch LVL-A7-BG4B-E5PU-CG-EMS
- Limit switch for liquids
- Process connection G1
- Suitable for process temperatures up to 150 °C (302 °F)
- Rugged stainless steel housing
- Onsite function check possible thanks to LED indication
- External function test with test magnet
请注意：所有以Pepperl + Fuchs GmbH或Pepperl + Fuchs AG名义发行的产品相关文件，例如证书，合格声明等，同样适用于Pepperl + Fuchs SE。
下载PDF版完整参数表:
技术参数节选 LVL-A7-BG4B-E5PU-CG-EMS
| General specifications | ||
|---|---|---|
| Measuring method | The tuning fork is brought to its resonance frequency by means of a piezoelectric drive. If the tuning fork is covered by liquid, this frequency changes. The electronics monitor the resonance frequency and indicate whether the tuning fork is freely vibrating or is covered by liquid. | |
| Construction type | device with short tube | |
| Operating mode | MAX = maximum safety: The device keeps the electronic switch closed as long as the liquid level is below the fork. example application: overspill protection MIN = minimum safety: The device keeps the electronic switch closed as long as the fork is immersed in liquid. example application: dry running protection of pumps The electronic switch opens if the limit is reached, if a fault occurs or in the event of a power fails (quiescent current principle) |
|
| Series | LVL-A* | |
| Supply | ||
| Connection | This device may be used with any sequential circuit, as long as the circuit can support the electrical circuit values of the switching elements. | |
| Rated voltage | 10 ... 35 V DC | |
| Fusing | external 500 mA slow | |
| Current consumption | < 15 mA | |
| Power consumption | 975 mW | |
| Residual ripple | 5 V ss at 0 ... 400 Hz | |
| Input | ||
| Measured variable | density | |
| Measuring range | min. 0.7 g/cm3 | |
| Output | ||
| Output type | switching output | |
| Switching current | max. 250 mA | |
| Directive conformity | ||
| Electromagnetic compatibility | ||
| Directive 2014/30/EU | EN 61326-1:2006 , EN 61326-2-3:2006 | |
| Directive 2004/108/EC | EN 61326-1:2006 , EN 61326-2-3:2006 | |
| Conformity | ||
| Electromagnetic compatibility | NE 21 | |
| Degree of protection | IEC 60529 | |
| Shock resistance | EN 60068-2-27 | |
| Vibration resistance | EN 60068-2-64 | |
| Climate class | DIN EN 60068-2-38/IEC 68-2-38 | |
| Measurement accuracy | ||
| Reference operating conditions | - ambient temperature: 25 °C (+77 °F) - process pressure: 1 bar (14.5 psi) - fluid: water (density: approx. 1 g/cm3, viscosity: 1 mm2/s) - medium temperature: 25 °C (+77 °F) - density setting: > 0.7 g/cm3 - switching time delay: standard (0,5 s, 1 s) |
|
| Measured value resolution | < 0.5 mm | |
| Measuring frequency | approx. 1100 Hz in air | |
| Switching point | 13 mm ± 1 mm | |
| Non-repeatability | ± 1 mm acc. to DIN 61298-2 | |
| Hysteresis | max. 3 mm | |
| Influence of ambient temperature | negligible | |
| Influence of medium temperature | -25 µm/°C | |
| Influence of medium pressure | -20 µm/bar | |
| Switching time | - 0.5 s when tuning fork is covered - 1.0 s when tuning fork is uncovered |
|
| Switch-on delay | max. 3 s | |
| Operating conditions | ||
| Installation conditions | ||
| Installation position | see technical information (TI) | |
| Ambient conditions | ||
| Ambient temperature | -40 ... 70 °C (-40 ... 158 °F) | |
| Storage temperature | -40 ... 85 °C (-40 ... 185 °F) | |
| Shock resistance | a = 300 m/s2 = 30 g, 3 planes x 2 directions x 3 shocks x 18 ms, as per test Ea | |
| Vibration resistance | a(RMS) = 50 m/s2, ASD = 1.25 (m/s2)2/Hz, f = 5 to 2000 Hz, t = 3 x 2 h | |
| Process conditions | ||
| Medium temperature | -40 ... 150 °C (-40 ... 302 °F) | |
| Process pressure (static pressure) | -1 ... +40 bar (-14.5 ... +580 psi) | |
| State of aggregation | liquid | |
| Density | min. 0.7 g/cm3 | |
| Viscosity | 1 ... 10000 mPa/s, dynamic viscosity | |
| Solid contents | < ∅5 mm | |
| Mechanical specifications | ||
| Degree of protection | IP65 , NEMA 4X | |
| Connection | valve connector M16 | |
| Material | process connection and short tube: stainless steel 316L (1.4401/1.4435) tuning fork: stainless steel 316L housing cover and connector: PPSU |
|
| Surface quality | Ra < 3.2 µm | |
| Mass | approx. 169 g | |
| Process connection | thread G1 acc. to ISO 228 | |
| Indication and operation | ||
| Display elements | The LED display is on the connection side. - green LED: indication of ready to operate - red LED: fault indication - yellow LED: operating mode indication |
|
| Function test | function test with test magnet (optional accessory) | |
| Certificates and approvals | ||
| CSA approval | cCSAus Listed, General Purpose | |
| Overspill protection | see approval (ZE) | |
| General information | ||
| Supplementary documentation | technical information (TI) manual (BA) approval (ZE) |
|
| Supplementary information | Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com. | |
| Accessories | ||
| Designation | see technical information (TI) | |
Classifications
| System | Classcode |
|---|---|
| ECLASS 13.0 | 27200518 |
| ECLASS 12.0 | 27200518 |
| ECLASS 11.0 | 27200518 |
| ECLASS 10.0.1 | 27200518 |
| ECLASS 9.0 | 27200589 |
| ECLASS 8.0 | 27200589 |
| ECLASS 5.1 | 27200589 |
| ETIM 9.0 | EC001447 |
| ETIM 8.0 | EC001447 |
| ETIM 7.0 | EC001447 |
| ETIM 6.0 | EC001447 |
| ETIM 5.0 | EC001447 |
| UNSPSC 12.1 | 41111950 |
| Product category / 产品类的 | 液位测量仪 |
Details: LVL-A7-BG4B-E5PU-CG-EMS
Product Documentation: LVL-A7-BG4B-E5PU-CG-EMS
| Product information | 语言 | 文件类型 | 文件大小 |
|---|---|---|---|
| TI01147O, Technical information LVL-A7 | ENG | 2367 KB | |
| Manuals | |||
| BA01285O, Manual LVL-A7 | ENG | 2649 KB | |
Design / Simulation: LVL-A7-BG4B-E5PU-CG-EMS
| CAD | 语言 | 文件类型 | 文件大小 |
|---|---|---|---|
| 3-D model LVL-A7-AG4B-XXPU-XX / 3-D-Modell LVL-A7-AG4B-XXPU-XX | ALL | STP | 2939 KB |
| CAD Portal / CAD Portal | ALL | LINK | --- |
Approvals: LVL-A7-BG4B-E5PU-CG-EMS
| Certificates | 证书号码 | 语言 | 文件类型 | 文件大小 |
|---|---|---|---|---|
| Canada, USA CSA | CoC 2876507 cUS | ALL | 34 KB | |
| Declaration of Conformity | ||||
| EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F) | DOC-2380B | ALL | 261 KB | |
| Contamination Declaration | ||||
| Contamination declaration / Kontaminationserklärung | ALL | 137 KB | ||
倍加福（北京）过程自动化控制设备有限公司
北京市经济技术开发区
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101111 Beijing
中国
pa-info@cn.pepperl-fuchs.com
+86 10 5901 7000
上海倍加福工业自动化贸易有限公司
上海市静安区市北工业园区江场三路
219号4楼
200436 上海
中国
fa-info@cn.pepperl-fuchs.com
+86 21 6630 3939
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