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XII. PERIODIC MAINTENANCE 

 

CLEANING THE FAN FILTER MEDIA 

The fan filter media should be cleaned with a mild soap and warm water solution or replaced periodically. If the 
analyzer is used in a clean laboratory environment, it may require attention every six months. If the analyzer is 
used in the production environment, it may require cleaning as frequently as once a week. 

CAUTION

DO NOT REMOVE THE FOUR SCREWS HOLDING THE COOLING FAN IN-PLACE 

A snap-in frame holds the filter media in place. Use a small screwdriver or knife to snap-out the frame holding 
the media. Remove the media and clean thoroughly with a warm water/soap solution. Dry the filter, align it in 
the fan frame, and snap the retaining frame back in place. Replace with new media if there are tears or holes. 
 

CLEANING THE DISKS 

Agtron calibration disk surfaces should be kept clean and free of contaminants. Clean the calibration disk 
surfaces periodically using alcohol and a soft lint free cloth. Be careful not to scratch the disk surfaces. Don’t 
forget to clean the Life Disk located under the sample drawer. 
 

STORING THE TWO-SIDED CALIBRATION DISK 

Keep the two-sided calibration disk in its box and away from direct sunlight whenever the disk-set is not in use. 
Never leave the disk-set in the analyzer. 
 

CLEANING THE ANALYZER INTERIOR 

 

Unplug the analyzer  

 

Remove the LIFE DISK from under the sample drawer. Clean the life disk with alcohol and a soft lint 
free cloth 

 

Remove the rectangular sample tray. Clean the sample tray with soap and warm water. Thoroughly dry 
the tray before placing it back into the analyzer 

 

Clean the top surface of the sample drawer with a soft cloth 

 

Use a vacuum to remove any coffee that has accumulated inside of the analyzer  

 

CLEANING THE DISPLAY & ANALYZER EXTERIOR SURFACE / KEYPAD 

Use a soft cloth moistened with a 20% solution of water and Windex or alcohol to clean the exterior surfaces. 

CAUTION

Use very light pressure to avoid damaging the LCD 

 

RECERTIFYING THE ANALYZER & CALIBRATION DISKS 

The E20CP-III and the two-sided calibration disk set should be periodically recertified to maintain analyzer 
accuracy.  Consult page 19 for the recertification procedure. 

 
IMPORTANT OPERATION NOTES 

 

 Avoid exposing the analyzer to direct sunlight, extreme heat, and liquids  

 The analyzer will prompt more frequent calibrations if the environment temperature changes significantly 

 Do not connect the analyzer to a computer UPS 

 Keep the fan filter media clean 

 Keep the interior of the analyzer clean and free of stray coffee 

 Periodically remove and clean the Life Disk 

 Never use solvents or abrasives to clean calibration disks 

 
 
 

Summary of Contents for E20CP-III

Page 1: ...E20CP III OPERATIONS MANUAL Software Version IR128 S5 0 IR128 S5 5 USB ADT 2020 Special Application Spectrophotometer AGTRON INCORPORATED 9395 Double R Boulevard Reno NV 89511 PHONE 1 775 850 4600 FAX...

Page 2: ...in a linear manner relative to the development of the collective organic chemistry The Agtron model E20CP III evaluates changes to these selected compounds by measuring their photometric response to...

Page 3: ...THE ANALYTICAL SCALE Page 12 VIII ACCESSING EDITING THE CUSTOM SCALE VARIABLES Page 13 IX IMPROVING ANALYTICAL ACCURACY AND REPEATABILITY Page 16 X NON STANDARD SCALE CALIBRATION Page 17 XI CONNECTIN...

Page 4: ...y pulling it straight out until it hits the bumper stop Look into the chassis under the drawer There are four posts sticking up from a raised platform that is affixed to the inside bottom of the chass...

Page 5: ...a 15 watt light bulb Turn the power switch to the ON position The display should activate and begin timing a 45 minute warm up period The unit model type serial number and other information will appe...

Page 6: ...keypad KEYS ANALYZER FUNCTION 0 9 Enters numeric values and access combination key functions CAL Activates calibration routine using stored high low values no editing function F CAL Displays stored h...

Page 7: ...you wish to change the Date Time displayed Depress the key The display will show YEAR YY Using the numeric keypad enter the last two digits of the year i e 2018 would be 18 The display will show MONTH...

Page 8: ...ill show AGTRON UNIT NN Use the numeric keypad to enter the two digit number to be assigned to the unit 01 99 If you wish to exit without entering an ID number key in 00 As soon as a two digit ID numb...

Page 9: ...ed with REFERENCE COFFEE SAMPLES of known or desired score see section VIII Non Standard Scale Calibration 1 Remove the two sided Red Black Calibration Disk set and dish from its storage box IMPORTANT...

Page 10: ...he sample drawer and will store a reference value The reference value stored is used automatically to recalibrate the analyzer every time the drawer is opened The display will change to LOW REFERENCE...

Page 11: ...container and thoroughly mixing the grounds to produce homogeneity It is also important that the particle specification is consistent Overfill the shallow side of the sample dish with the homogenized...

Page 12: ...S B x S C See Section VII for programming instructions To Switch Select Scales 1 Depress SCALE Each time the SCALE button is depressed selections will toggle in a loop between Agtron Scale Gourmet Sca...

Page 13: ...score offset constant VARIABLE DEFAULT VALUES LIMITS Variable A Default 0 0000 Limits 0 00000 to 0 59998 Variable B Default 1 000 Limits 0 000 to 9 876 Variable C Default 00 00 Limits 00 00 to 98 76...

Page 14: ...played depress the FNC key To edit the B variable depress the ENTER key The display will show ENTER TO SAVE EXIT B x S B 00 000 Key in the desired B value and depress the ENTER key to save and move to...

Page 15: ...ER key to save the C value exit the custom scale variable editing subroutine and return to normal analyzer function The display will show COFFEE MODE NOTE When all of the Custom Scale variables are se...

Page 16: ...f the surface compacts compresses and cakes the grind is too fine Remember what looks like an identical surface to the eye may appear quite different to the analyzer Time from Roasting Cooling Grindin...

Page 17: ...the 3 key then depress the F CAL key The display will show OPEN SAMPLE DRAWER SET REFERENCE MODE 3 Fully open the sample drawer The display will show HIGH REFERENCE RED DISK OR SAMPLE 4 Place the ligh...

Page 18: ...ibration to that scale a With the analyzer in the COFFEE MODE fully open the sample drawer and allow the analyzer to calibrate b Place the Calibration Reference disk set into the shallow side of the d...

Page 19: ...a Terminal WARNING The E20CP III does not have serial port isolation Connecting the analyzer to a non isolated serial port can permanently damage the internal micro processor Connect the analyzer seri...

Page 20: ...smitted with the notation that the auto data transmit feature is ON With auto transmit ON each time a reading is taken the product score with time and date will be transmitted b Depress the 6 SEND DAT...

Page 21: ...E USING THE NUMERIC KEYPAD AND DEPRESS THE ENTER KEY TO ENTER THAT VALUE 8 FULLY OPEN THE SAMPLE DRAWER CAREFULLY PLACE THE DARKER SAMPLE INTO THE SAMPLE POSITION AND FULLY CLOSE THE DRAWER 9 KEY IN T...

Page 22: ...e disk set is not in use Never leave the disk set in the analyzer CLEANING THE ANALYZER INTERIOR Unplug the analyzer Remove the LIFE DISK from under the sample drawer Clean the life disk with alcohol...

Page 23: ...56 9 75 70 53 1 NO TILE Medium Light 65 49 4 65 60 45 7 NO TILE Medium 55 42 0 55 50 38 3 NO TILE Medium Dark 45 34 6 45 40 30 8 NO TILE Dark 35 27 1 35 30 23 4 NO TILE Very Dark 25 19 7 25 Extremely...

Page 24: ...CTIONS Contact Agtron for a Return for Repair authorization number RFR before sending equipment to Agtron for service Analyzers returned without an RFR will not be received Repack the equipment in the...

Page 25: ...25 XV CE CERTIFICATE DECLARATION of CONFORMITY...

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