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CHAPTER 5 Instrument Maintenance

 

 

To keep the instrument work in good condition, constant maintain is needed. 

 

1. Daily Maintain 

1) Check the compartment 

After measurement, the cuvettes with sample solutions should be taken out of the 
compartment in time. Or the volatilization of the solution would make the mirror 
go moldy. Users must pay more attention to the corrosive sample and liquid easy 
to  volatilize.  Any  solution  remains  in  the  compartment  should  be  wiped  off 
immediately. 
 

2) Surface Clean 

The cover of the instrument is with paint. Please use wet towel to wipe off the   
drip on the surface immediately. Organic solution is forbidden to be used to clean 
the cover. Please wipe off the dirt on the cover timely. 

 

3) Clean the cuvettes 

After every test or after a solution change, the cuvettes should be cleaned carefully, 
or the remains on the surface would cause measuring error.   

       

2. Troubleshooting 

1) Dark Current Error when self-test 

    Possible Cause 

 

 

 

 

                Solution 

 

Open the lid of the compartment        Close the lid of the compartment 

during the course of self-test.              and switch on the power again. 

 

2) No response after power on 

Possible Cause   

 

 

 

 

    Solution 

 

Bad contact in power supply                  Improve the contact 

 

Fuse melt   

 

 

 

 

 

  Replace a new fuse 

 

3) Printer not work, printer error

 

Possible Cause   

 

 

 

 

 

Solution

 

 

No power supply                 

 

 

Switch on the power supply 

 

Bad contact in power supply   

 

Improve the contact   

 

Bad contact of the data cable   

 

Improve the contact 

 

4) No Stable Reading 

Possible Cause   

 

 

 

 

 

Solution

 

 

No enough pre-warm   

 

 

Increase the pre-warm time 

Summary of Contents for DU-8200 Series

Page 1: ...hongqing Drawell Instrument CO Ltd Add Suite 2705 Building No 12 Shiyou Road No 1 Yuzhong District Chongqing China Tel 0086 023 63268643 Shanghai Drawell Scientific Instrument Co Ltd Add Suite 1117 La...

Page 2: ...n 6 3 Installation 6 Chapter 4 Operation Introduction 7 1 Software Structure 7 2 Basic Operation 8 2 1 Choose Photometric Mode 8 2 2 Set Wavelength 8 2 3 Set Parameters 8 2 4 Set the position of auto...

Page 3: ...te and time 19 4 Calibrate Dark Current 19 5 Wavelength Calibration 20 6 Input the lamps changing Wavelength Point 20 7 Reload Default 21 8 Version 21 Chapter 5 Instrument Maintenance 22 1 Daily Maint...

Page 4: ...h voltage power supply at all times Some of the chemicals used in spectrophotometry are corrosive and or inflammable and samples may be radioactive toxic or potentially infective Care should be taken...

Page 5: ...s specification especially when making measurements of an important nature carry out performance checks with particular reference to wavelength and absorbance accuracy Performance checks are detailed...

Page 6: ...istry Biochemistry Petro chemistry Environmental Protection Food and Beverage Labs Water and Waste Water Labs and other fields of quality control and research This instrument incorporates a 128 64 dot...

Page 7: ...Halogen or deuterium lamps to supply the light 2 A Monochromator to isolate the wavelength of interest and eliminate the unwanted second order radiation 3 A sample compartment to accommodate the samp...

Page 8: ...5 Specifications UV VIS VIS Wavelength Range 190 1100nm 320 1100nm Band Width 2nm 4nm Wavelength Accuracy 1nm Wavelength Repeatability 0 3nm Wavelength Setting Auto Photometric Accuracy 0 5 T Photome...

Page 9: ...Be sure to set the instrument s Voltage Switch at your local power supply or severe damage may occur The Voltage Switch is on the bottom of the instrument The default value is 220V you can see the val...

Page 10: ...y the Curve Select Curve Set Parameters Set Parameters D2 Lamp W Lamp Time Set Get Dark Current WL Calibration Version Load Default Fig 4 1 Menu Tree 1 2 Firmware Functions The firmware consists of 3...

Page 11: ...nding menu and use Arrow key to input the parameter press BasicMode Quantitative Setup 08 08 08 26 BasicMode 0 000Abs 500 0nm ESC ENTER to confirm press BasicMode Quantitative Setup 08 08 08 26 BasicM...

Page 12: ...st Note During the Diagnostic Program runs please DON T open the lid of the compartment 3 2 Pre warm When the diagnostic program finished it goes into pre warm condition 20 minutes is required before...

Page 13: ...BasicMode Abs T Energy ESC SET to go into Parameter Setting Interface press Array Key to select Abs T or Energy mode press BasicMode 0 000Abs 500 0nm BasicMode Abs T Energy ESC SET to confirm Press B...

Page 14: ...Print the data Press PRINT to print the test result Step 8 Delete the data Press ENTER to delete the test data 4 2 Quantitative Step 1 Go into Quantitative Interface In the main menu press Arrow Key...

Page 15: ...curve just choose Delete Curve Standard Curve ESC ENTER Quantitative Standard Curve Coefficient Unit Create Curve Load Curve Delete Curve Fig 4 8 2 Set Wavelength Move the cursor on Create Curve the...

Page 16: ...Pull the 1 Standard Sample in the light path and input the value of its concentration by the Arrow keypad then press ENTER 500 0nm 0 100Abs Put2 Standard Input2 Conc C 500 0nm 0 100Abs Put1 Standard I...

Page 17: ...000Abs No Abs Mg ml 1 0 000 0 000 2 0 100 0 100 Fig 4 14 Pull the unknown sample in the light path then press StandardCurve ESC ENTER CreateCurve LoadCurve DeleteCurve No CurveData 1 C 1 852A 2 010 2...

Page 18: ...urve No CurveData 1 C 1 852A 2 010 2 C 1 000A 0 000 to confirm Then the system goes into the curve equation choosing interface Fig 4 17 Standard Curve ESC ENTER Create Curve Load Curve Delete Curve No...

Page 19: ...nt K and press Coefficient CoefficientK CoefficientB CoefficientK C KxA B K 0 000 K ESC ENTER to go into K setting interface Fig 4 20 Input K and press Coefficient CoefficientK CoefficientB Coefficien...

Page 20: ...ESC ENTER Setup D2Lamp On WLamp On Date Time to measure then the result will display on the screen Repeat this step to measure other samples All the test results will be listed on the screen and stor...

Page 21: ...te Time D2Lamp On On Off to confirm Press ESC ENTER Setup D2Lamp On W Lamp On Date Time D2Lamp On On Off to return ESC ENTER Setup D2 Lamp On W Lamp On Date Time D2 Lamp On On Off Fig 4 24 2 Power on...

Page 22: ...12 00 00 Date 2008 08 08 WeekFriday to return ESC ENTER Setup D2 Lamp On W Lamp On Date Time Date Time Time 12 00 00 Date 2008 08 08 Week Friday Fig 4 26 4 Calibrate Dark Current When the working con...

Page 23: ...after calibration ENTER Setup Date Time Dark Current Calibrate WL Calibrating WL Fig 4 28 6 Lamps Change Input the lamps changing wavelength point The instrument permits the users to set the lamps cha...

Page 24: ...es No pressed to cancel the operation and return Setup Reset WL Lamp Change Load Default ESC ENTER Load Default Yes No Fig 4 30 8 Version Press Arrow Key to choose Version and press Setup LampsChange...

Page 25: ...clean the cover Please wipe off the dirt on the cover timely 3 Clean the cuvettes After every test or after a solution change the cuvettes should be cleaned carefully or the remains on the surface wo...

Page 26: ...t reading Possible Reason Solution Dark Current Error Re get the dark current Worse matching of the cuvettes Improve the matching of the cuvettes 3 Spare part replacement Replace the Fuse Danger Be su...

Page 27: ...24 1 2 Fig 5 2 Step 5 Reset the fuse seat Replace the fuse seat in the power socket Step 6 Switch on the power Plug the socket and switch on the power...

Page 28: ...O Ltd Add Suite 2705 Building No 12 Shiyou Road No 1 Yuzhong District Chongqing China Tel 0086 023 63268643 Shanghai Drawell Scientific Instrument Co Ltd Add Suite 1117 Lane561 XiuChuan Rd PuDong New...

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