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Techcomp UV 2600 Instruction Manual Download Page 38

CHAPTER 4 MAINTENANCE 

35 

 

 

4.3.2 Failure Cause and Countermeasure 

 

If instrument is abnormal, deal with it according to the following. 

 

Symptom 

Cause 

Countermeasure 

Turn  on  the  instrument,  but 

no action 

（

Instrument  unable  to 

operate

）

 

(1)  Power  cord,  fuse  are 

abnormal 

(2)  Work  power  supply 

abnormal 

(1) Replace power cord and 

fuse. 

(2)  Replace  work  power 

supply 

After powering on, light 

source is not ON,

“

D2 

！”

or

“

WI

！

”

displayed on status 

display. 

(1)  Relevant  light  source 

lamp is broken. 

(2)  Light  source  light  has 

been set under OFF status. 

(1)  Replace  relevant  light 

source lamp.   

(2)  Confirm  setting  of  light 

source lamp again.   

Data fluctuation is large 

(1)  There  is  sth  blocking 

optical 

path 

in 

sample 

compartment.   

(2) 

Lamp 

performance 

decreases. 

(3)  Lamp  or  viewfinder 

contaminated 

(4) Misoperation during zero 

calibration. 

(1) 

Take 

out 

material 

blocking optical path.   

(2)  Replace  light  source 

lamp.   

(3)  Replace,  clean  lamp/ 

viewfinder. 

(4) Adjusting zero correctly.   

“

656.1nm 

！

”

displayed on 

status display 

Wavelength  value  is  not 

correct 

(1) 

Perform 

wavelength 

calibration.   

(2)  Contact  to  our  Service 

Department.   

“

ROM 

！”

or

“

RAM 

！”

displayed on status display 

Micro control board fails 

Replace 

micro 

control 

board.   

”Wavelength drive!” 
displayed on status display 

(1)  Abnormal  wavelength 

driver 

(2)  Abnormal  wavelength 

resetting signal 

(3) Micro control board fails 

(1) 

Check 

wavelength 

screw,  slide,  screw  for 

fixing, motor etc.   

(2)  Replace  microswitch  of 

wavelength resetting.   

(3)  Replace  micro  control 

board.   

 
 

4.3.3 Replacing fuses 

 

There are fuses

（

3.15A

）

  installed in instrument input power supply, and power 

supply board, circuit board inside instrument.   

If fuse is found broken, first check and find the cause. Then replace the fuse.   

 
 
 

 

Summary of Contents for UV 2600

Page 1: ...UV VIS Spectrophotometer UV 2600 Version 1 INSTRUCTION MANUAL UV2600 UV VIS Spectrophotometer ...

Page 2: ...tion 16 1 6 Check of Voltage and Fuse 16 1 7 Connection of Communication Cable 17 1 7 1 PC Port 17 1 7 2 Acc Port 17 1 8 Connection of Power Cord and Grounding Wire 17 1 9 Power On 18 Chapter 2 Function 19 2 1 Work Principle 19 2 2 Optical Path System 20 2 3 Circuit System 21 2 4 Function Mode 22 2 5 Sample Compartment 23 2 6 Specifications 24 Chapter 3 Operation 25 3 1 Preparation 25 3 1 1 Instal...

Page 3: ...Replacement of Consumable Parts 36 4 4 1 Replacement of Light Source Lamp 36 4 4 2 Clear of Lamp Use Time 41 4 4 3 Adjustment of Lamp 41 4 5 Disassembly of Instrument Main Parts 45 4 5 1 Open Instrument Cover 45 4 5 2 Removal Procedures of Power Switch 45 4 5 3 Removal of Control Board and Lamp Power Supply Board 46 4 5 4 Removal Procedures of Pre amplifier 46 4 6 Storing of Instrument 47 4 6 1 Af...

Page 4: ... wrong analytical data but in consequences adverse to safety Before using the instrument be sure to read through this instruction manual to enable correct use For installation maintenance of the instrument read the instruction manual carefully to attain a full understanding of the instructions Be sure to observe cautionary instructions Keep this manual handy for easy reference when necessary Infor...

Page 5: ...is used near an intense electromagnetic source interference noise may be given to the instrument to incur an adverse effect on its performance or functionality This effect will be less than 1 and still could be accepted To prevent this use the specified system connection cables in strict accordance with the instruction manual The instrument is designed to minimize possible electromagnetic wave int...

Page 6: ...old to other user 2 Warranty Period One year from the date of initial installation or received by the customer The deadline refer to the fist one 3 Limitations and Exclusions on Warranty Note that this warranty is void in the following cases even if they occur within the warranty period a Failure due to operation at a place not meeting the installation requirements specified by us b Failure due to...

Page 7: ... Failure of the personal computer connected with the instrument or damage to the system software application software data or hard disk due to disconnection of main power to the personal computer without taking the specified normal shutdown procedure Warning Class A equipments is intended for use in an industrial environment In the documentation for the user a statement shall be included drawing a...

Page 8: ... payable it will charge fee Disposal of this Instrument When you discard equipment please check and confirm some related statute law and practices or ask the service section of Techcomp Other Precautions 1 Handling of Chemicals and Samples 1 The user is responsible for following relevant legal standards and regulations in handling storage and discarding of chemicals and samples used in analytical ...

Page 9: ...gs consisting of an alert symbol and signal word DANGER WARNING or CAUTION DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury This warning does not apply to this product WARNING Indicates a potentially hazardous situation which if not avoided can result in death or serious injury CAUTION Indicates a hazardous situation which if not avoide...

Page 10: ...eration or action other than described in the instruction manual When in doubt please contact our sales representative or service office nearest you When using a chemical for analytical operation be sure to provide proper ventilation in the laboratory room as per local requirements Inadequate ventilation could endanger human health Keep in mind that the hazard warnings in the manual or on the prod...

Page 11: ... power cord make sure that the POWER switch of the spectrophotometer main unit is turned off CAUTION Burn in Contact with High Temperature The D2 lamp and WI lamp reach a high temperature They can burn you if touched Before replacing or adjusting the lamp turn off the POWER switch and wait until it cools down sufficiently Fatigue on Long Use Watching the CRT screen in the same posture for a long t...

Page 12: ...tometer There are warning labels of high pressure high temperature on UV2600 Spectrophotometer Pay attention to them during operation to avoid safety accidents Back Up the Data It is therefore recommended to back up the contents of the hard disk beforehand To avoid misoperation set space of more than 100 MB in computer harddisk as work area for UV apllication software Computer Virus If programs or...

Page 13: ...upply is turned off during access to the hard disk or floppy disk the PC may malfunction and the data or software stored in it may be destroyed To turn off the PC power supply be sure to complete the spectrophotometer control and data processing program UV Analyst before taking the shutdown procedure for the system software Power Failure A power failure or momentary voltage drop of the power suppl...

Page 14: ...w are attached to the Model UV2600 Spectrophotometer 1 Dangerous Voltage 500V 100 240V The warning label above is attached to cover of lamp source compartment and power supply socket 2 Attention to High Temperature The warning label above is attached to cover of lamp source compartment ...

Page 15: ...ight of UV2600 spectrophotometer is about 50kg Care should be taken when moving it Figure 1 1 UV2600 UV VIS Spectrophotometer Note To avoid shock during transportation sponge has been used for fixing viewfinder in UV2600 Before powering on the instrument first open cover of light source compartment and take out sponge in viewfinder Otherwise it may have influence on instrument initialization check...

Page 16: ... Grounding wire Grounding resistance must be less than10Ωinstalled as per relative standards 1 2 2 Work Table The requirements for work table are as follows 1 Work table for UV2600 spectrophotometer should be horizontal and reliable withstanding weight of more than 85kg with a width of more than 800mm a depth of more than 750mm 2 If other devices will be put on the work table as well the area requ...

Page 17: ... solvents particularly benzene thinner etc 1 3 5 Sample Solvent 1 Sample solvent and corrosive material should not to be put near instrument When using them be careful to avoid drop or spill onto the cover or inside sample compartment 2 If organic solvent has been spilled on the cover or inside sample compartment please cleans it by soft cloth or paper at once 3 If acid or alkali solution has been...

Page 18: ... as the UV2600 but are not fitted with noise suppressors h Height above sea level 2000m I Pollution degree IP20 J Transient overvoltage is cagegory Ⅱ Note The optical system is very delicate In addition the control unit incorporates high density electronic circuit components which function as a computer The above cautions should be strictly observed 1 4 Check of Contents After unpacking check the ...

Page 19: ...he procedures for taking out sponge are as follows 1 Unscrew fix Screw on cover of light source compartment and remove cover of light source compartment 2 Take out sponge inside viewfinder 3 Install cover and tighten the screw 1 6 Check of Voltage and Fuse WARMING The Voltage of instrument is AC100 240V which may cause electric shock Before selecting and confirming the voltage used first confirm p...

Page 20: ...ional accessories can be configured on UV2600 including autosipper controlled by PC Using communication cable provided by optional part connect UV2600 Acc port to the optional part NOTE Pull in or pull out PC port and Acc port when main unit is turned off Please comply with the NOTE 1 8 Connection of Power Cord and Grounding Wire WARNING Before plugging in the power cord make sure the POWER switch...

Page 21: ...ection of power cord and grounding wire 1 9 Power On After confirming that connection of power cord and ground wire is OK connection of PC and computer is OK connection of optional part is OK turn on UV2600 spectrophotometer and run UV Analyst ...

Page 22: ...t attain photoelectricity conversion part such as photodiode through sample and its light energy signal will be converted to photocurrent So A can be expressed by photocurrent Assume that photocurrent not through sample to be tested is I0 and photocurrent throught sample to be tested is It So the ratio of the two is transmittance τ T τ It I0 100 A lgτ lg It I0 KLC K has relation to wavelength of i...

Page 23: ...ring beam transmittance and reference beam reflect Measuring beam will enter phtoelectricity convertor after relected by M7 through sample cell and reflected by M10 M11 M12 And it will convert to electricity signal Reference beam will enter the same phtoelectricity convertor after reflected by M8 through reference sample cell and reflected by M9 M13 The electricity signal converted is basic signal...

Page 24: ...PC main control board and data result will be sent to PC and displayed by software HV Board provides negative high pressure power supply used by detector and control board will select suitable negative high pressure value automatically to obtain stable energy Work power supply of PC control part is controlled or provided by lamp power supply RS232 Port is communication port ACC port is communicati...

Page 25: ... acid measurement Protein measurement UV2600 PC control Autozero Wavelength scan WL display Wavelength setting Filter setting Light source setting Measruing value display Measuring value print Sample No print Measuring value communication Sample No communication Data communication Print Result display Data saving CONC mode Time scan Photometry measurement ...

Page 26: ...cuvette holder glass test holder film holder rectangle long holder flow cell assembly 6 port positioner with temp control manual 5 cell holder and autosipper etc Thease options are installed inside sample compartment and can be replaced easily As for installation and use of options refer to option instruction manual Figure 2 5 UV2600 Sample Compartment Single cell holder Measurement cell Reference...

Page 27: ...T potassium dichromate Baseline flatness 0 001Abs 200 850nm Baseline stability 0 0004Abs hr at 500nm 2 hours after power on Spectrum bandwidth 0 2nm 0 5nm 1nm 2nm 5nm autoswitch Stray light 0 010 T at 220nm NaI at 340nm 360nm NaNO2 Wavelength scan speed 1 nm min 5nm min 20 nm min 120 nm min 300 nm min 1000 nm min 1600 nm min 2000nm min excluding switch time of filter and light source lamp Waveleng...

Page 28: ...to any port of COM1 COM8 If port convertor is used may need to set the software refer to port convertor instruction manual for detail 3 1 2 Initialization Turn off UV2600 main unit and connect UV2600 main unit to PC Turn on UV2600 run the software in PC and instrument will check the following items automatically RAM Check RAM EPROM Check EPROM Wavelength drive Check wavelength driving system D2 La...

Page 29: ...If items above are OK it will enter normal work status as shown below 3 2 Basic Operation 3 2 1 Operation Method The following figure is basic operation interface of software Refer to UV Analyst Instruction Manual for detail ...

Page 30: ...n measurement at certain slit level is required or wavelength correctness of each slit should be improved please set the slit level needed and perform wavelength calibration under this slit Instrument will save the wavelength position of this slit level 5 For D2 lamp and instrument pre heating it is suggested that wavelength calibration should be done 30 minutes after powering on 6 As instrument h...

Page 31: ...compartment The wash procedures are as follows Reassemble the sample compartment after it is dry Figure 1 4 to Figure 4 5 1 Open cover of sample compartment 2 Unscrew the screw of cuvette holder one screw 3 Hold front board of sample compartment and take out cuvette holder Note there is assigned bolt 4 Clean and dry cuvette holder and inner of sample compartment 5 Install cuvette holder back to sa...

Page 32: ...CHAPTER 4 MAINTENANCE 29 Figure 4 2 move the screw of cuvette holder Figure 4 3 Removal of cuvette holder ...

Page 33: ...r taken out 4 1 2 Clean of Spectrophotometer Cover Please do not put chemical reagent sample on the spectrophotometer Otherwise optical system performance may be influenced In case chemical reagent sample has been spilled on the cover be sure to clean the cover by soft cloth water and scour and dry the cover ...

Page 34: ...nce face of cuvette Note 1 The quality of cuvette will have influence the reading accuracy of instrument Please use cuvette with good quality 2 The cuvette of UV2600 instrument is optional part 3 There are two kinds of cuvettes quartz cuvette can be used in whole wavelength and glass cuvette can only be used in visible area with wavelength more than 400nm They have the same appearance so pay atten...

Page 35: ...nt has been pulled out 2 Open cover of sample compartment and take out cuvette bracket 3 Clean window plate and lens using mixed solution of alcohol and aether 1 1 and soft cloth Dry them 4 Install cuvette bracket back to the previous position Note 1 When cleaning lens only need to clean the face towards sample compartment for the other face is sealed and need not to be cleaned 2 Try not to remove...

Page 36: ...ility using time scan Specification 0 0004Abs h 500nm Note 2 hours after powering on 4 Baseline Flatness Check baseline flatness using wavelength scan 200nm 850nm 120nm min Specification 0 001Abs Note 1 Auto test basic performance and work status of main parts of instrument must wait for 30 minutes after powering on the instrument 2 As for baseline stability test it must be done 120 minutes after ...

Page 37: ...to serviceman 656 1nm 656 1nm not found Check whether sponge in viewfinder has been taken out whether any material in sample compartment and do wavelength calibration again Wavelength drive Wavelength drive error Contact to serviceman Baseline Current baseline parameter not complied with setting parameter Reset parameters for baseline calibration D2 When setting D2 lamp ON or need to use D2 lamp l...

Page 38: ...r viewfinder contaminated 4 Misoperation during zero calibration 1 Take out material blocking optical path 2 Replace light source lamp 3 Replace clean lamp viewfinder 4 Adjusting zero correctly 656 1nm displayed on status display Wavelength value is not correct 1 Perform wavelength calibration 2 Contact to our Service Department ROM or RAM displayed on status display Micro control board fails Repl...

Page 39: ...cedures are as follows Refer to Figure 4 9 Figure 4 15 1 Turn off the power supply switch to OFF position then wait until light source lamp cools 2 Unscrew the screw of light source compartment cover Remove cover of light source compartment 3 Replace WI lamp Refer to Figure 4 10 Figure 4 13 a Pull out the old WI lamp gently and take out old WI lamp from lamp base b Put the new WI lamp inside lamp ...

Page 40: ...p cool Then replace the lamp 3 When installing new lamp use clean gloves cloth and paper to hold lamp to avoid any fingerprint left on lamp 4 After lamp has been replaced when confirming the lamp ON please close the cover of lamp source compartment to avoid eye iInjury caused by lamp Figure 4 9 Removal of light source compartment cover Screw ...

Page 41: ...CHAPTER 4 MAINTENANCE 38 Figure 4 10 Structure of light source compartment Figure 4 11 Removing WI lamp D2 lamp Base D2 plug WI plug WI lamp WI base Viewfinder ...

Page 42: ...CHAPTER 4 MAINTENANCE 39 Figure 4 12 Install WI lamp Figure 4 13 Shape of WI lamp fuse Bow of fuse Twist ...

Page 43: ...CHAPTER 4 MAINTENANCE 40 Figure 4 14 Pull out install plug of D2 lamp lead Figure 4 15 Remove install D2 lamp ...

Page 44: ...4 17 1 Turn off D2 lamp 2 Set wavelength below 300nm and set 2nm slit Aim the viewfinder of light source at WI lamp side to make WI lamp aim at light entrance slit Cofirm relative position of WI lamp facula and light entrance slit is OK If relative position of WI lamp facula and light entrance slit has deviation adjust Screw C of WI lamp and Screw A of viewfinder If WI lamp facula has horizontal d...

Page 45: ...amp facula and light entrance slit B The adjustment of D2 lamp position are as follows Refer to Figure 4 18 Figure 4 19 1 Turn off WI lamp Confirm WI lamp facula at this position Screw C Three Viewfinder Screw A Nut A WI lamp WI lamp facula Light entrance slit Normal status Horizontal deviation Vertical deviation ...

Page 46: ...mp source compartment which is polychromatic light But after polychromatic light of D2 lamp has been changed into homogeneous light by monochromator we cannot see facula by eye So we cannot observe the shape of D2 lamp facula inside sample compartment by eye and we cannot adjust D2 lamp position Note As for turning on and turning off the lamp wavelength settings transmittance absorbency mode setti...

Page 47: ...tment of D2 Lamp Figure 4 19 Relative position of D2 lamp facula and light entrance slit Confirm D2 lamp facula at this position Viewfinder Screw B Nut B D2 lamp assembly D2 lamp facula Light entrance slit Normal status Horizontal deviation Vertical deviation ...

Page 48: ... Instrument Cover 1 Open cover of sample compartment and unscrew the screw of cuvette holder Take out holder 2 Unscrew the screw of sample compartment holder 3 Loosen the screw at side of instrument 4 Take out instrument cover Do not force to the motor at front of the cover to avoid connection line broken 5 Install the cover Do not press the connection wire of motor by cover during installation No...

Page 49: ...circuit board do not bend the board forcibly 4 5 4 Removal Procedures of Pre amplifier 1 Remove instrument cover 2 Unscrew the screw on the cover of pre amplifier and remove the cover of pre amplifier 3 Pull out each pin of pre amplifier 4 Unscrew the screw of pre amplifier And take out pre amplifier 5 Install pre amplifier pay attention to plug the pins correctly Note 1 When removing and installi...

Page 50: ... Used for a Long Time 1 Please do not place the instrument in the place with high temperature more than 70 low temperature less than 20 high hunidity more than 80 or vibrant source 2 Make sure to cover the dustproof cover on the instrument 3 Instrument cannot be touched to corrosive and venomous gases 4 When instrument is being transported to storage place fix the viewfinder by sponge 5 Do not kee...

Page 51: ...48 No 16 201 Minyi Road Songjiang District Shanghai China 86 21 67687200 86 21 67687190 sh factory techcomp cn www techcomp cn Shanghai Techcomp Instrument Ltd ...

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