SENSIRION LD20 Series Operating Manuallines Download Page 1

www.sensirion.com  -  Sensirion AG, Laubisrütistr. 50, 8712 Stäfa/ZH, Switzerland 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Operating Guidelines  
for Liquid Flow Meter Kits 

 
 

For SF06 based Liquid Flow Meters 

Version 1 

 

Summary of Contents for LD20 Series

Page 1: ...www sensirion com Sensirion AG Laubisr tistr 50 8712 St fa ZH Switzerland Operating Guidelines for Liquid Flow Meter Kits For SF06 based Liquid Flow Meters Version 1...

Page 2: ...e PC 4 2 4 Connecting the Fluidic System to the Liquid Flow Meter 5 3 Sensirion Viewer Software 6 4 Understanding Your Measurements 11 5 1 Liquid Flow Meter Operating Principle 11 5 2 Sensor Lineariza...

Page 3: ...er Kits contain the following components Evaluation Kit for SLF3x Series SLF3S 1300F liquid flow sensor SLF3x mounting clamp to enable mechanical fixation of the sensor SCC1 USB Sensor Cable with USB...

Page 4: ...ely for laboratory and demonstration purposes It may not be used or multiplied commercially SENSIRION does not offer any warranty on Windows software features 2 3 Connecting the Liquid Flow Meter to t...

Page 5: ...ng inlet tubing equal to or larger than sensor s flow channel inner diameter ID otherwise turbulences may affect the sensor performance at higher flow rates the sensor datasheet con tains flow channel...

Page 6: ...ndow appears first select RS485 Sensor Cable under COM Hardware followed by the Sensor Product with the selection Liquid Flow Sensor SF06 Chip Default COM Port Settings and RS485 Device Settings are g...

Page 7: ...surement For many functions on the main screen you will need to stop the current measurement before making changes Also stop the measurement before disconnecting the sensor or the SCC1 USB Sensor Cabl...

Page 8: ...Timing Information Default setting of Relative is generally preferred This means data files saved will show initial reading taking place at time zero and every reading thereafter incrementally increas...

Page 9: ...t a different folder location or edit the file name You may also type this information directly into the field next to the Select File button Start Logging Select this button to save data on your comp...

Page 10: ...X Axis of the graph If timing was previously set to Relative scale will start at zero with first data measurement If set to Absolute scale will show real time in the format hh mm ss ms Show Data Point...

Page 11: ...negligible amount of heat is introduced to the fluid and monitored to correlate temperature differentials to actual flow Temperature sensors before and after the heater detect temperature changes as...

Page 12: ...relative gauge when flow is required to stay within an acceptable range In such a case sensor response can be recorded at maximum and minimum flow rates and used as upper and lower guard bands for ref...

Page 13: ...or you are testing 4 5 Verify Sensor Performance The steps below will help you evaluate whether a specific dispense flow rate is a good match for your sensor when using a fluid not originally calibrat...

Page 14: ...erent calibration field and repeat the experiment In rare cases a linear relationship is not possible and a higher order interpolation must be used Please contact Sensirion for additional support 4 6...

Page 15: ...his is hence displayed as 3 Whereas steady flow within the sensor s measurement range is dis played as 0 These are the decimal representations of the binary signalling flags b001 b010 b011 and b000 4...

Page 16: ...the senor dry with pressurized air Sen sor plugs should be installed for storage The cleaning agent detergent solvent etc should be chosen for its effectiveness in removing the liquid media and compat...

Page 17: ...a different default calibration field Edit default page 9 3 Please check if reference is working properly 4 If the flow rate is pulsating e g due to pumping mecha nism try to eliminate this e g by flu...

Page 18: ...g blockage of fluidic path fluid sup ply e g pump not properly work ing system leaking Make sure environmental condi tions and physical properties of the medium don t change Check fluidic path and flu...

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