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F-750 Instruction Manual rev. 3/26/2014 

 

 

1554 NE 3

rd

 Ave, Camas, WA 98607, USA                      Phone (360) 833-8835  Fax (360) 833-1914  

[email protected]                                                           http://www.felixinstruments.com

 

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Rename record is used to change a file name.  Press left to delete a character.  Press up/down to change 
the character.  Press right arrow but do not enter a character, then the right arrow again to save it.  The 
delete record option can be used to inspect a record and delete it. 

 

Setup Instrument 

The Setup Instrument menu houses the features and parameters that are adjustable by the user.  
Options from the Setup Menu include: date & time, record prefix, training sets, GPS receiver, calibrate 
instrument, measurement accuracy, language and factory reset.   

Date & Time: 

The date & time menu adjusts the time stamp on the F-750.   

Record Prefix: 

At the record prefix menu, a new prefix can be entered or select a recently used prefix.  

To enter a new prefix, enter the value to use as a record prefix on the display.  The select a recently used 
prefix option will generate a list of recently used prefixes.  Use the up/down arrows to highlight the 
desired prefix. To be used.   

Training Sets: 

The training sets menu is where the model is developed.  This menu is used when 

collecting spectra to use in the training set to populate the X and the scans to do the regression.  The 
options are to create a new training set, delete a training set or modify an existing training set.   

Create New Training Set: 

At the create new training set menu, enter the name to use for this new 

training set.  Next, enter the number of specimens that will be used to build this model. Once the 
number of specimens is entered, press right arrow to collect the training spectra.  The instrument will 
indicate “Processing”. Do not press the square/start button to gather training set spectra.  The 
square/start button only initiates a measurement.   

The specimen data can be viewed, and temperature (minimum, mid-range, and maximum) can be 
selected.  At each temperature, there is a numbered list of specimens (example: 20).  Select the 
specimen by using the up/down arrows.  When Specimen 1 is highlighted, press the right arrow to 
collect data for the training set.  The space next to Specimen one will change from (empty) to 
(timestamp). Repeat with each of the 20 specimens at each of the 3 temperatures.  Specimens can be 
re-done if a mistake is made or the wrong specimen/temperature is selected.  

Delete Training Set: 

The delete training set menu is fairly simple.  There is a prompt asking if you would 

like to permanently delete this record.  Press the right arrow to confirm and delete the training set.  
Press the left arrow to abort. 

Modify Existing Training Set: 

The modify existing training set menu generates a list of training sets on 

instrument.  Press the right arrow to get to “browse specimen data and delete training set” menu. 

Summary of Contents for F-750

Page 1: ...F 750 Produce Quality Meter Operation Manual...

Page 2: ......

Page 3: ...6 How to Generate a Model 7 Partial Least Squares Basics 11 B coefficient Regression 11 How to Collect Spectra and Reference Values 12 Cleaning and Maintenance 13 Firmware Update Procedure 13 Warning...

Page 4: ...t parameters such as planning for harvest sequences and improving crop management techniques For quantitative analysis of complex samples fast and inexpensive spectroscopic methods are preferable to t...

Page 5: ...weighted coefficients to the spectrum are applied 3 Coefficients are summed over the weighted spectra 4 A predicted concentration is reported by the summation Unpacking the F 750 The F 750 will arrive...

Page 6: ...1st and 2nd block going across screen The 3rd block is for processing data the 4th block is for saving measurements At the 5th block the measurement is complete and displays the record to be reviewed...

Page 7: ...ear Using the scale coefficient 1 and scale coefficient 2 menus a new value to use for the scale coefficient can be entered The scale coefficient is from the regression vector Press the left arrow to...

Page 8: ...n The options are to create a new training set delete a training set or modify an existing training set Create New Training Set At the create new training set menu enter the name to use for this new t...

Page 9: ...r 0 65 The lamp state option is used to turn the lamp on or lamp off Press the down up to turn off on The lamp automatic gain which is used to fine tune how much the logic has control of the gain can...

Page 10: ...F 750 Instruction Manual rev 3 26 2014 1554 NE 3rd Ave Camas WA 98607 USA Phone 360 833 8835 Fax 360 833 1914 sales felixinstruments com http www felixinstruments com 7 How to Generate a Model...

Page 11: ...nstrument to the computer and open the software 2 Insert the SDcard to the computer 3 Prompt user for the location of the calibration files 4 Load Slov Golay scans into the program 5 Prompt user for t...

Page 12: ...Leave One out Cross Validation k 1 cross validation 9 Program determines if there are outliers and allows the user to label outliers 10 If outliers exist systematically remove each outlier and determ...

Page 13: ...60 833 8835 Fax 360 833 1914 sales felixinstruments com http www felixinstruments com 10 13 Graph the B coefficient or weighted regression coefficients 14 Check the B coefficient for noise If noise is...

Page 14: ...pectra and determine what preprocessing is required 4 Select useful region 5 Preform the Regression Cross Validation 6 Evaluate results B coefficient Regression Perform the regression by calculating t...

Page 15: ...nstruction Manual rev 3 26 2014 1554 NE 3rd Ave Camas WA 98607 USA Phone 360 833 8835 Fax 360 833 1914 sales felixinstruments com http www felixinstruments com 12 How to Collect Spectra and Reference...

Page 16: ...nuggly installed The rubber bumper and the case of the F 50 can be wiped clean with a cloth Firmware Update Procedure The firmware of the F 750 is updated by connecting the instrument to a computer us...

Page 17: ...y and M Golay 1964 Smoothing and Differentiation of Data by Simplified Least Squares Procedures Analytical Chemistry 36 8 1627 1639 M Sjostrom and S Wold 1983 A multivariate calibration problem in ana...

Page 18: ...plication of commercially available low cost miniaturized NIR spectrometers to the assessment of the sugar content of intact fruit Plant Physiol 27 1175 1186 K Walsh R Long and S Middelton 2007 Use of...

Page 19: ...orbance of chlorophyll This will make up a set of properties that will be predicted and displayed after a model file is loaded on the F 750 NIPALS Non linear Iterative Partial Least Squares iterative...

Page 20: ...f the model For example a dry matter model with a RMSE of 0 0123 has an error of 1 23 DM or a 1 23 prediction error An acceptable amount of error is determined by the type of property being predicted...

Page 21: ...are to answer your technical questions by phone or by e mail at support felixinstruments com Felix Instruments contact information Felix Instruments 1554 NE 3rd Ave Camas WA 98607 USA Phone 800 767 01...

Page 22: ...ntent in fish dry matter of cheese titratable acids quantification as well as many other characteristics 2 How do I recharge the batteries of the F 750 a To recharge the batteries twist to remove the...

Page 23: ...not authorized by Felix Instruments Material and equipment covered hereby which is not manufactured by Seller is to be covered only by the warranty of its manufacturer Seller shall not be liable to th...

Page 24: ...750 Instruction Manual rev 3 26 2014 1554 NE 3rd Ave Camas WA 98607 USA Phone 360 833 8835 Fax 360 833 1914 sales felixinstruments com http www felixinstruments com 21 F 750 PRODUCTION TEST CHECK SHEE...

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