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- 20 - 

5) Wavelength Calibration 

 

After some time, the energy of lights would drop off and there 
will be some but slight influence on the test result. In this case, 
users can reset the wavelength to compensate. We suggest the 
users to reset the wavelength every one or two months. 

 

 

 

Remove all the blocks in the light path and close the lid of the compartment, 

press  Arrow Key  to choose  “Calibrate WL.” and  press 

ENTER

√Setup

Date & Time
Dark Current
Calibrate WL.

Calibrating WL.

  to begin  the 

calibration

Fig. 4-28

. The lid of the compartment should not be opened 

during the calibration. It returns automatically 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  changing 
wavelength  point.  In  the  range  of  300-400nm,  users  can 
choose the lamp freely. 

 

 

 

Press  Arrow  Key  to  choose  “Lamp  Change”  and  press 

√Setup

Dark Current
Calibrate WL.
Lamps Change

ESC

ENTER

Lamps Change

WL=500.0nm
Please Input WL.
WL=

  to  go  into 

corresponding setting interface (Fig.4-29). Input the value of lamps changing 

wavelength point by the Arrow keypad

300—400nm

then press 

√Setup

Dark Current
Calibrate WL.
Lamps Change

ESC

ENTER

Lamps Change

WL=500.0nm
Please Input WL.
WL=

  to 

confirm and return. 
 

√Setup

Dark Current
Calibrate WL.
Lamps Change

ESC

ENTER

Lamps Change

WL=500.0nm
Please Input WL.
WL=

 

Fig. 4-29 

 

 

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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