smallnick
do good
級別: 論壇先鋒
|
壇子里有熟悉流量計的嗎?沒有選過這東西,哪個廠家的質量和性能比較好,能夠耐腐蝕,適應不同的液體,酒精,水,等化學品,流量最大大概500ml/min,數字量或者模擬量都行。 謝謝 |
---|---|
|
kissko
要學習就要各位師傅手下多指教
級別: 網絡英雄
|
你說的那些環境沒有試過,我試過污水的流量計 |
|
---|---|---|
|
ysheng9099
三人行必有吾師
級別: 工控俠客
|
國產的有承德國誠電子、熱河克羅尼、菲波爾特、福光百特等廠家,進口的有E+H、羅斯蒙特等,都能滿足樓主的要求樓主 |
---|---|
|
stam_chang
級別: *
|
流量很小,精度要求不高可以用轉子流量計,精度要求高的可以用電磁或渦街流量計,國產品牌國外品牌都有 |
---|---|
|
riiynicel
sanziyoudu
級別: 略有小成
|
我用在催化劑上 幾個1萬2 Preliminary Datasheet SLQ-HC60 Milliliter Flow Meter for Hydrocarbons www.sensirion.com November 2008 Preliminary Information _ V0.81 1/6 1 Introduction SLQ-HC60 The SLQ-HC60 Liquid Flow Meter enables fast, non invasive measurements of liquid flow up to 80 ml/min. This product line is especially suited for process monitoring applications in automation technology which require high sensitivity in the milliliter range. It is suited for use with almost all hydrocarbons, as for example, alcohols, oils, gasoline, diesel, etc. and many other chemicals. Excellent chemical resistance is ensured: The flow path of the SLQHC60 Liquid Flow Meters is formed by a simple, straight glass capillary. This Swiss made, non invasive flow meter is based on Sensirion’s patented CMOSens® Technology (US Patent 6,813,944 B2). An internal fourth generation MEMS sensor chip combines a thermal high precision sensor element with amplification circuits and digital intelligence for linearization and temperature compensation on one single microchip – the product’s core element. 2 Sensing Performance In Table 1 the flow sensor’s performance for use with Isopropyl Alcohol (IPA) is given. For other hydrocarbons the values will be slightly different as the performance depends on the medium used. Due to the optimized output signal the repeatability is nearly constant over a wide flow range. The repeatability depends on the integration timea of the analog signal acquisition. Longer integration time leads to better repeatability of the flow measurement (see table 1). The temperature compensation is optimized for use with IPA and shows very good performance for most hydrocarbons and other media. Table 1: Model specific performance of SLQ-HC60 for IPA (all data at 20°C, 1 barabs unless otherwise noted) Parameter Condition SLQ-HC60 Units Best Performance 80 Maximum Flow Rate Reduced Performance 100 ml/min 1.5 % m.v. 0.2 sec integration time 0.2 % F.S. 1 % m.v. Repeatabilityb (whichever is greater) 2 sec integration time 0.07 % F.S. Flow Detection Response Time < 50 ms Accuracyc 10 % m.v. Response Time On Power-Up 120 ms Mounting Orientation Sensitivityd For IPA 0.25 ml/min Temperature Compensated +10…+40 °C Operating Temperature Functional +0 ... +55 °C Ambient storage temperature (empty flow channel) -10…+60 °C a This refers to the time over which the analog acquisition device averages the input signal. Refer to the datasheet of your device. b For medium IPA using 1 σ standard deviation of consecutive flow measurements. c With IPA, 2.5-80 ml/min, after conversion of the Vout signal via the logarithmic relation. d Normal position: Horizontal Flow channel, connector horizontally. - Maximum flows up to 80 ml/min - Sensitive to lowest flows - Straight flow path, no moving parts - Fast response time: < 50 ms - Optimized for hydrocarbons - SLQ-HC60 Milliliter Flow Sensor www.sensirion.com November 2008 Preliminary Information _ V0.81 2/6 3 Output Signal and Media Compatibility 3.1 Output Signal The SLQ-HC60 flow meter comes with an analog output (0…10V). Depending on the media used, the output will be about 5 Volt at zero flow. For positive flow rates the output signal increases logarithmicallya with the flow rate for IPA (see figure 1). This signal characteristic has the advantage that the flow meter can be used at various flow rates with a constant relative error and makes measurements for a wide spectrum of liquids possible. 3.2 Signal for Other Media For other media but IPA the form of the sensor signal will differ slightly as is demonstrated in figure 2. When using the sensor with other media but IPA, ask Sensirion for advice on how to handle the sensor signal to suit your requirements. Because of the drastically different sensor response the sensor is not suited for use with water or aqueous solutions. 3.3 Maximum Flow Rate for Common Media Due to the measurement principle, the thermal properties of the medium determine the sensor characteristics and the dynamic range of the device. For most hydrocarbons and most other media this range extends to about 80 ml/min. With reduced performance even rates of 100 ml/min or higher can be reached for some media. For low viscosity (< 1 centipoise) media the dynamic range can be limited by turbulence. The dynamic ranges for various media are given in Table 2. For other media similar values can be expected. Attention: If unsure about your medium please contact Sensirion for assistance. a The flow rate for IPA is given by Flow[ml/min] = (Exp[(Vout-5)/0.729]-1)/3 for positive flow rates, i.e. above 5V. b At reduced requirements on accuracy (repeatability for other media but IPA) and exchangeability of sensors. Table 2: Examples for common media Medium Maximum Flow Rate Units IPA 80 (100b) Ethanol, Methanol ~50 Acetone ~ 40 Diesel, Petroleoum 80 (100d) Gasoline ~50 Vegetable Oil 80 (100d) Silicon Oil, Ether < 100 ml/min Figure 1: Sensor Signal for IPA 0 1 2 3 4 5 6 7 8 9 10 -120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120 Flow [ml/min] (IPA) Vout [Volt] Figure 2: Sensor Signal for Various Media 5 6 7 8 9 10 0 20 40 60 80 100 Flow [ml/min] Vout [Volt] Ethanol IPA Diesel SLQ-HC60 Milliliter Flow Sensor www.sensirion.com November 2008 Preliminary Information _ V0.81 3/6 3.4 Exchangeability Every SLQ-HC60 is calibrated for IPA. This makes the sensors also exchangeable for use with other media, meaning that once the sensors are characterized for a particular medium the same values can be used for further sensors. Depending on the media, variations between sensors of 6– 20% are typical. 4 Cleaning Due to the measurement principle the sensor is sensitive to deposits on the inside of the sensor’s capillary. Especially when changing from one liquid to another sufficient cleaning steps have to be performed to avoid nonsoluble remainders on the capillary wall. Inadequate cleaning can lead to an offset and low repeatability. The cleaning procedure has to efficiently remove contaminations from the borosilicate glass surfaces. This is the material which is used for the straight flow channel inside the flow meter. Any form of mechanical cleaning has to be avoided. This will easily damage the internal capillary. 5 Electrical and Mechanical Specifications 5.1 Electrical Specifications Table 2: DC Characteristics. Parameter Conditions Min. Typ. Max. Units Power Supply DC, VDD 16 24 26 V Operating Current VDD = 24 V ---- , no load 3 4 mA Analog Out Voltage Range 0 10 V Load at Analog Out 10 ¥ kW Capacitive Load at Analog out Tbd pF 5.2 Electrical Connector and Pinout Connector Type: Lumberg Pico (M8) male, 8-pole, threaded lock. Pin Color (pigtail cable) 1 Power Supply 24V white 2 GND brown 3 GND green 4 GND yellow 5 GND gray 6 Analog Out 0-10 V pink 7 GND blue 8 GND red 5.3 Fluidic Connections The repeatability of the measurement depends on a laminar flow of the liquid. Especially with low viscosity media improper connections to the sensor can unnecessarily reduce the maximum flow rate. Tubing with an inner diameter of less than 1.8 mm should be avoided. Make sure that the tubing has been cut properly. SLQ-HC60 Milliliter Flow Sensor www.sensirion.com November 2008 Preliminary Information _ V0.81 4/6 5.4 Mechanical Specifications and Pressure Rating Table 3: Mechanical Specifications and Pressure Rating Parameter SLQ-HC60 Fluid Connector Standard (Fittings) ¼-28 flat bottom port for 1/8”, 3mm OD tubing Wetted Materials: · Internal Sensor Capillary Material Duran® (borosilicate glass 3.3) · Fitting Material 100% PEEK™ (polyetheretherketone) · Additional Sealing Material Tefzel® (ETFE) Overpressure Resistance 3 bar 45 psi Maximum Pressure Drop (at 80 ml/min flow rate for IPA) 40 mbar Internal Sensor Capillary, Inner Diameter 1.8 mm Protection Class IP 65 Total Mass 53 g 6 Physical Dimensions 7 Ordering Info Product Article Number SLQ-HC60 1-100605-01 Attention Mechanical shocks and connecting to the fittings with excessive force can lead to stress on the internal thin walled glass capillary and can cause it to break. Test for leakage after every time new connections are made. Refer to Handling Instructions for precise information. ! SLQ-HC60 Milliliter Flow Sensor www.sensirion.com November 2008 Preliminary Information _ V0.81 5/6 Important Notices 7.1 Warning, personal injury Do not use this product as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Do not use this product for applications other than its intended and authorized use. Before installing, handling, using or servicing this product, please consult the data sheet and application notes. Failure to comply with these instructions could result in death or serious injury. If the Buyer shall purchase or use SENSIRION products for any unintended or unauthorized application, Buyer shall defend, indemnify and hold harmless SENSIRION and its officers, employees, subsidiaries, affiliates and distributors against all claims, costs, damages and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if SENSIRION shall be allegedly negligent with respect to the design or the manufacture of the product. 7.2 ESD Precautions The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESDinduced damage and/or degradation, take customary and statutory ESD precautions when handling this product. See application note “ESD, Latchup and EMC” for more information. 7.3 Warranty SENSIRION warrants solely to the original purchaser of this product for a period of 12 months (one year) from the date of delivery that this product shall be of the quality, material and workmanship defined in SENSIRION’s published specifications of the product. Within such period, if proven to be defective, SENSIRION shall repair and/or replace this product, in SENSIRION’s discretion, free of charge to the Buyer, provided that: · notice in writing describing the defects shall be given to SENSIRION within fourteen (14) days after their appearance; · such defects shall be found, to SENSIRION’s reasonable satisfaction, to have arisen from SENSIRION’s faulty design, material, or workmanship; · the defective product shall be returned to SENSIRION’s factory at the Buyer’s expense; and · the warranty period for any repaired or replaced product shall be limited to the unexpired portion of the original period. This warranty does not apply to any equipment which has not been installed and used within the specifications recommended by SENSIRION for the intended and proper use of the equipment. EXCEPT FOR THE WARRANTIES EXPRESSLY SET FORTH HEREIN, SENSIRION MAKES NO WARRANTIES, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT. ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY EXCLUDED AND DECLINED. SENSIRION is only liable for defects of this product arising under the conditions of operation provided for in the data sheet and proper use of the goods. SENSIRION explicitly disclaims all warranties, express or implied, for any period during which the goods are operated or stored not in accordance with the technical specifications. SENSIRION does not assume any liability arising out of any application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. All operating parameters, including without limitation recommended parameters, must be validated for each customer’s applications by customer’s technical experts. Recommended parameters can and do vary in different applications. SENSIRION reserves the right, without further notice, (i) to change the product specifications and/or the information in this document and (ii) to improve reliability, functions and design of this product. Copyright© 2001-2007, SENSIRION. CMOSens® is a trademark of Sensirion All rights reserved. Trademarks where mentioned. E.g. PEEK™ is a trademark of Victrex PLC Teflon® is a registered trademark of DuPont Corporation Duran® is a trademark of the SCHOTT-Group FCC and CE Statement This product has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules (FCC CFR 47). These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of more of the following measures: SLQ-HC60 Milliliter Flow Sensor www.sensirion.com November 2008 Preliminary Information _ V0.81 6/6 · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and the receiver · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult a dealer or an experienced radio/TV technician for help. The devices fully comply with norm EN 50081-2 (Emission Test Series) as well as EN 50082-2 (Immunity Test Series). ESD protection up to 2kVolt. 7.4 RoHS and WEEE Statement The SLQ product family complies with requirements of the following directives: · EU Directive 2002/96/EC on waste electrical and electronic equipment(WEEE), OJ13.02.2003; esp. its Article 6 (1) with Annex II. · EU Directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS), OJ 13.02.2003; esp. its Article 4. Headquarters and Sales Office Headquarter Sales Office USA: SENSIRION AG Phone: + 41 (0)44 306 40 00 SENSIRION Inc. Phone: 805 409 4900 Laubisruetistr. 50 Fax: + 41 (0)44 306 40 30 2801 Townsgate Rd., Suite 240 Fax: 805 435 0467 CH-8712 Staefa ZH info@sensirion.com Westlake Village, CA 91361 michael.karst@sensirion.com Switzerland http://www.sensirion.com/ USA http://www.sensirion.com/ Sales Office Korea: Sales Office Japan: SENSIRION KOREA Co. Ltd. Phone: 031 440 9925~27 SENSIRION JAPAN Co. Ltd. Phone: 03 3444 4940 #1414, Anyang Construction Tower B/D, Fax: 031 440 9927 Postal Code: 108-0074 Fax: 03 3444 4939 1112-1, Bisan-dong, Anyang-city info@sensirion.co.kr Shinagawa Station Bldg. 7F, info@sensirion.co.jp Gyeonggi-Province http://www.sensirion.co.kr/ 4-23-5, Takanawa, Minato-ku http://www.sensirion.co.jp South Korea Tokyo, Japan Find your local representative at: http://www.sensirion.com/en/06_contact-sales/00_contact_us/02_representatives.htm |
---|---|
|
smallnick
do good
級別: 論壇先鋒
|
悲劇,木有合適的,流量太小,10ml/min--200ml/min,最關鍵的還得CE認證,郁悶中 |
---|---|
|
chenpingyg
機械是柱石,電氣是靈魂.
級別: VIP會員
|
流量計有很多種啊,孔板流量計,渦街流量計,電磁流量計,渦輪流量計,靶式流量計, 百度一下 你就知道 推薦你使用橫河電磁流量計 |
|
---|---|---|
|