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Summary of Contents for Siargo LF3000 Series
- Page 1 LF3000 series Microfluidic Flow Meters User Manual VA.0 @ 2022 Siargo Ltd. www.Siargo.com...
- Page 2 Copyright 2022 and Liability Disclaimer Siargo Ltd. and its subsidiaries reserve the right to change the specifications and/or descriptions without prior notice. Siargo and its subsidiaries shall not assume any inaccuracy or errors in this manual. For further information and updates, please visit www.Siargo.com.
- Page 3 • Do not apply for any unknown or non-specified liquids that may damage the product. • Be cautious for the bubbles or cavitation inside the fluid, visible or invisible that may lead to inaccuracy or erroneous outputs. www.Siargo.com LF3000 User Manual...
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Page 4: Table Of Contents
5.6.2.3 Frame .............................. 19 5.6.2.4 Function codes ..........................19 5.6.2.5 Registers ............................19 6. Product selection ..................22 7. Technical specifications ................23 8. Technical notes for the product performance ..........24 Measurement principle ........................24 www.Siargo.com LF3000 User Manual... - Page 5 Verification of the product’s accuracy or reproducibility ............26 8.2.7 9. Troubleshooting ..................27 10. Warranty and Liability ................28 11. Service contact and information ............... 30 Appendix I: Product evaluation kit ..............31 Appendix II: Document history ............... 32 www.Siargo.com LF3000 User Manual...
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Page 6: Overview
1. Overview All contact information can be found at the end of this manual. This manual provides essential information for the LF3000 series of flow meters and sensors for microfluidic metering applications. The product performance, maintenance, and troubleshooting, as well as the information for product order, technical support, and repair, are also included. -
Page 7: Receipt / Unpack Of The Products
: The basic specifications of the product are written in the 2D code at the back of the product. Use a smartphone to read the information and verify your order before further processing. If there are any questions or doubts, please contact the manufacturer or your sales agent. www.Siargo.com LF3000 User Manual... -
Page 8: Knowing The Products
Power supply, 8 ~ 24Vdc White SCL, I C clock / RS485B (-) Blue Ground Black SDA, I C data / RS485A (+) Gray Analog output 0.5 ~ 4.5 Vdc Figure 3.1: LF3000 socket and cable www.Siargo.com LF3000 User Manual... -
Page 9: Mechanical Dimensions
3.3 Mechanical dimensions Figure 3.3.1: LF3000 (0.2~50sccm full scale) meter dimensions Figure 3.3.2: LF3000 (0.2~50sccm full scale) sensor dimensions www.Siargo.com LF3000 User Manual... - Page 10 Figure 3.3.3: LF3000 (100~500sccm) meter dimensions. Figure 3.3.4: LF3000 (100~500sccm) sensor dimensions. www.Siargo.com LF3000 User Manual...
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Page 11: Installation
It is essential to ensure no bubbles inside the fluid for the product's best performance. It is highly recommended that a de-bubbler should be installed before the flow meter/sensor. The proposed installation schematics are shown in Figure 4.1. Figure 4.1: Suggested installation. www.Siargo.com LF3000 User Manual 10 |... - Page 12 2. IDEX-HS, D-648: Swivel Barb Adapter, for use with Soft-Walled Tubing, Polypropylene, Each For 1/8” ID 3. IDEX-HS, XP-305: Flangeless Fitting Delrin®, Green, 1/4-28 Flat-Bottom, for1/8" OD 4. IDEX-HS, XP-201: Flangeless Fitting Delrin®, Black 1/4-28 Flat-Bottom, for1/16" OD P647 D648 XP-305 XP-201 www.Siargo.com LF3000 User Manual 11 |...
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Page 13: Basic Operation
5.3 Check the leakage Check leakage before any measurement. Pressurized nitrogen or air can be used for the leakage check, particularly if the fluid is non-conventional. www.Siargo.com LF3000 User Manual 12 |... -
Page 14: Connect The Power Supply
SDA (Black) and SCL (White) terminals are used for the I C serial data line and serial clock line, which provide digital data communication and the remote control of the product. www.Siargo.com LF3000 User Manual 13 |... -
Page 15: Analog Interface/Measurement
Beyond this specified range, the voltage could also be read, but the accuracy is not guaranteed, as those are obtained by extrapolation (blue dashed line, maximum calibration to 110% full scale). Another analog interface, such as 4~20mA, is also optional and can be requested by directly contacting the manufacturer. www.Siargo.com LF3000 User Manual 14 |... -
Page 16: Digital Interface/Measurement
C to USB port converter is integrated, and therefore it can be plugged into the computer for programming. The detailed instruction for coding and/or commands of the I C protocol is described and listed below for reference. www.Siargo.com LF3000 User Manual 15 |... -
Page 17: I 2 C Communication Protocol
5.6.1 I C communication protocol 5.6.1.1 I C interface connection diagram 5.6.1.2 I C interface read/write sequences www.Siargo.com LF3000 User Manual 16 |... -
Page 18: I 2 C Interface Command Description
CRC-8 Protected data C read and write Width 8 bits Polynomial 0x07 (x8 + x2 + x + 1) Initialization 0x00 Reflect input False Reflect output False Final XOR 0x00 Example CRC(0x4E20) = 0x6D www.Siargo.com LF3000 User Manual 17 |... -
Page 19: Rs485 Modbus Communication Protocol
The PC UART communication parameters are listed in the following table. Protocol Parameters Baud rate (Bits per second) 9600 bps Start bits Data bits Stop bits Even/Odd parity None Bits period 104.2 µsec Bytes period 1.1458 msec Maximum data length Maximum nodes www.Siargo.com LF3000 User Manual 18 |... -
Page 20: Frame
Note: At the time of shipping, the write protection function is enabled except for address and baud rate. Once the user completes the register value change, the write protection will be automatically enabled once again to prevent incidental data loss. www.Siargo.com LF3000 User Manual 19 |... - Page 21 Flow rate = [Value (0x003A)*65536 + value (ox003B)]/1000 e.g., for a flow rate of 20.340 mL/min, the user will read “0” from register Notes 0x003A and “20340” from register 0x003B, therefore Current flow rate = (0*65536+20340)/1000 = 20.340 www.Siargo.com LF3000 User Manual 20 |...
- Page 22 GCF, the user needs to send 0xAA55 Notes to the register 0x00FF, and then the write function will be enabled (write protection is disabled). After the write execution is completed, the firmware will automatically re-enable the write protection. www.Siargo.com LF3000 User Manual 21 |...
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Page 23: Product Selection
1 … 100 mL/min 2 … 200 mL/min 5 … 500 mL/min For example, LF3000-M50-U-B-T-W is a flow meter for 0 ~ 50 mL/min, with U – ¼”-28 connector, RS485, Bluetooth, and applicable for air. www.Siargo.com LF3000 User Manual 22 |... -
Page 24: Technical Specifications
Reference conditions 20°C, 101.325 kPa, DI water Storage temperature -10 ~ 70 °C Weight 230 (meter); 75 (sensor) Gram Protection IP50 Fluid compatibility Non-corrosive EN61326-1; -2; -3 *Note: IO-Link is optional for the electrical interface. www.Siargo.com LF3000 User Manual 23 |... -
Page 25: Technical Notes For The Product Performance
In most cases, the bubble inclusion inside the fluid would lead to a negative measurement deviation. Therefore, it is recommended to flush the flow channel before the measurement if the presence of bubbles is suspected. A degasser is www.Siargo.com LF3000 User Manual 24 |... -
Page 26: Pressurized Flow Delivery
Additional verification with a high precision balance of the system for calibration is also periodically performed. In normal operation, the product should maintain its status at the shipment. However, it is recommended that the product be re-calibrated at least once a year for heavy usage. www.Siargo.com LF3000 User Manual 25 |... -
Page 27: Verification Of The Product's Accuracy Or Reproducibility
If the continuous flow is guaranteed, Bernoulli’s equation will still govern. There should not be any sections in the system that will create a substantial pressure difference. Otherwise, the measured flow speed differences will be inevitable. www.Siargo.com LF3000 User Manual 26 |... -
Page 28: Troubleshooting
Check the system, and power Offset unstable Vibration, overheat off. Check commands and No digital interface Wrong address, software connection. No wireless, and BT cannot Check the model, and power Wrong model, data jam pair. off/on. www.Siargo.com LF3000 User Manual 27 |... -
Page 29: Warranty And Liability
The products returned under warranty to Siargo shall be at the user or purchaser's risk of loss and will be returned, if at all, at Siargo's risk of loss. Purchasers or users are deemed to have accepted this limitation of warranty and liability, which contains the complete and exclusive limited warranty of Siargo. - Page 30 (5) Any damages incurred by the incorrect usage of the products; (6) Siargo does not provide any warranty on finished goods manufactured by others. Only the original manufacturer's warranty applies;...
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Page 31: Service Contact And Information
11. Service contact and information Siargo Ltd. is making every effort to ensure the quality of its products. In case of questions and or product support, please contact customer service at the address listed below. We will respond to your request in a timely fashion and work with you toward your complete satisfaction. -
Page 32: Appendix I: Product Evaluation Kit
Appendix I: Product evaluation kit Siargo offers a sensor evaluation kit, including a digital data converter, USB data cable, and User Application software, that allows the user to evaluate the product performance on a Microsoft Windows-based computer. The user can read and visualize the flow rate of the product, obtain the totalized values, and save the data for further analysis. -
Page 33: Appendix Ii: Document History
Appendix II: Document history Revision A.0 (October 2022): ➢ First release www.Siargo.com LF3000 User Manual 32 |...
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