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UNICO 1100 SERIES

SPECTROPHOTOMETER

Model 1100 Spectrophotometer

Model 1100RS Spectrophotometer

SERVICE MANUAL

UNITED PRODUCTS & INSTRUMENTS INC.

•

MANUFACTURER OF QUALITY OPTICAL SYSTEMS

Содержание UNICO 1100

Страница 1: ...UNICO 1100 SERIES SPECTROPHOTOMETER Model 1100 Spectrophotometer Model 1100RS Spectrophotometer SERVICE MANUAL UNITED PRODUCTS INSTRUMENTS INC MANUFACTURER OF QUALITY OPTICAL SYSTEMS...

Страница 2: ...t Diagram of Synthetic Electronic System for UNICO 1100 22 5 2 PCB Arrangement of 15v 9v Power Supply 23 5 2 1 Circuit Diagram of 15v 9v Power Supply 24 5 3 PCB Arrangement of W Lamp Power Supply 25 5...

Страница 3: ...e ideal for various applications such as Clinical Chemistries Biochemistry Food and Beverage Laboratories Environmental Protection Water and Waste Water Labs and other fields of quality control The UN...

Страница 4: ...Figure 1 1 1 UNICO Model 1100 Spectrophotometer Figure 1 1 2 UNICO Model 1100RS Spectrophotometer 36 4...

Страница 5: ...ollimating lens to the Analytical grating where it is dispersed into its spectrum then through the Exit slit of the monochromator continues through the Sample compartment and finally to the Photo dete...

Страница 6: ...to the amount of light energy to the photo detector The signal is then amplified and processed The processed signal is sent to the digital display and also to the external outputs 0 Volt to 1 Volt ana...

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Страница 9: ...m Stray Radiant Energy 0 5 T 340nm 400nm 0 5 T 340nm 400nm Transmittance 0 T to 125 T 0 T to 125 0 T Absorbancy 0A to 2A 0A to 2A Photometric Accuracy 2 0 T 1 0 T Photometric Noise Level 2 0 T 1 T Pow...

Страница 10: ...n environment which is free of corrosive materials dust and severe vibrations Furthermore it should be kept away from any strong electric magnetic fields and high frequency fields 2 2 LINE VOLTAGE The...

Страница 11: ...0 minutes prior to taking any readings 3 2 REPLACING LAMPS AND ADJUSTMENTS 1 Turn off and unplug the instrument 2 Turn the instrument upside down 3 Remove the grill plate on bottom of the instrument b...

Страница 12: ...heAbsorbance operatingmode 1 Set thewavelengthto350nm 2 Make surethecuvetteholderis empty and place itin thesample compartment Close thesample compartmentlid 3 Set zeroAbsorbance by pressing the0A 100...

Страница 13: ...hecuvetteholderand inserttheDidymium filterintoit Place itin thesample compartmentand close thelid 13 Recordtheabsorbance reading on thedigitaldisplay 14 Advance thewavelengthsettingby 1nm and repeats...

Страница 14: ...mple compartmentand close thelid 4 Set thewavelengthto350nm 5 Set theMODE buttontoA 6 Set thereading to0 000A using the0A 100 T button 7 Empty thecell Wash outwithdichromatesolution and fill withdichr...

Страница 15: ...edisplay to100 0 4 Remove thecelladapterfrom thesample compartmentand close thelid Make a noteofthereading thatshouldbe atornear00 0 5 Prepare a solutioncontaining 50gm L ofsodium nitrite NaNO2 in dis...

Страница 16: ...tch IO Allow15 minutes fortheinstrumenttowarm up 2 Selecteitherthe TransmittanceorAbsorbance operatingmode by pressing the T A selectorbutton MODE untilthered lightforT orA is on 3 Selectthedesired wa...

Страница 17: ...ionship between Absorbance and Concentration is known to be linear The concentration of the Standard solution used to calibrate the instrument should be higher than the most concentrated sample 1 Sele...

Страница 18: ...toconcentration 1 Aftersettingthewavelength and settingzeroAbs on theblanksolution using the MODE button selectfactor F mode 2 Inserta cuvettecontaining a sample 3 Using the and arrows setthedigitalre...

Страница 19: ...t any time of measurement 0A 100 T Button Adjusts digital readout to 100 T or 0 000A when blank reference solution is in sample compartment Sample Compartment Insert 10mm test tube and close lid or fi...

Страница 20: ...ample compartment is empty a flap blocks the beam Pressing button adjusts readout to 00 0 T PRINT Button ENT First press after selecting Concentration mode enters reading on digital readout Other pres...

Страница 21: ...WavelengthControlKnob WAVELENGTH Selects desired wavelength in nanometers nm WavelengthReadoutWindow Displays desired wavelength 36 21...

Страница 22: ...8V and 8V On the power supply board Refer to Fig 5 1 1 to check 8V and 8V power supply supply Problem Turn on No display A Replace CPU board B Sloving wiring problem or replace socket A2 A3 Line powe...

Страница 23: ...W lamp power supply Remove it Is cell holder and Cuvette in position Install cell holder cuvette Shutter operation Repair shutter Halogen lamp peaked Amplifier detector Working fine Adjust the lamp po...

Страница 24: ...ht road out of the position Adjust the position of halogen lamp put a piece of white retangle paper into sample comparment open the shutter can see a whole clear bright facula Right filter in position...

Страница 25: ...uvette into the sample compatrment Shutter working Repair shutter assembly Press 100 after display 100 0 open the sample compartment cover if the display changde Is regulate power supply normal 1 Solv...

Страница 26: ...f possible interference facters After changed wavelength stable time full After 5 min press 100 again 12V power supply work stable Replace PC power supply Regulate power supply working Refer to Fig5 3...

Страница 27: ...t only after sample stability e select right wavelength f get rid of possible interference factors Is sample preparation Installed correctly Install the compartment correctly Are cuvettes used matched...

Страница 28: ...osition area of the detector if not adjust it 2 Amplifier output voltage static 20mV 30mV put black body to prevent the light from light way refer to Fig5 3 to adjust the potentiometer W to change the...

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Страница 35: ...Switch 2 Pc power 3 Power socket 4 Wavelength disc 5 Wavelength indicator 6 Part of grating 7 Monochromator 8 Sample compartment 9 Filter drive strap 10 Filter commutation cam 11 Amplifier dark box 12...

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