Handbook Ref No. MH079/Issue E
File Ref: UV2033vE.doc
Страница 1: ...Handbook Ref No MH079 Issue E File Ref UV2033vE doc ...
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Страница 3: ... Calibration Description 8 Care and Maintenance 9 Block Diagram 10 Programming via the RS232 interface 11 Environmental care recycling and disposal Handbook Update Log Issue Date Pages changed A 27 7 99 New Issue B 23 11 00 Version 5 programming C 18 06 02 Calibration update D 18 12 07 Performance update E 19 12 11 Handbook reformat ...
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Страница 5: ...diometer can also be used to measure the average irradiance on a selected detector and record the minimum and maximum values during the averaging period In addition the integrated irradiance in mJ m or J m is calculated The detector head comprises of three high stability photodiode detectors with glass absorption filters for the selected spectral band and a cosine corrected input diffuser Each of ...
Страница 6: ...h Microprocessor reset at switch on Background zero levels stored prior to shut off Serial Interface Three wire RS232 serial interface 4800 baud no parity 1 stop bit Integration Time 0 33s Conversion Scale 17 bit Accuracy Measurement accuracy 1digit with a linearity error of 1 Display 4 digit LCD Character height 10mm Power Supply Two 9 volt PP3 Alkaline Power Consumption Shut down mode 5µA Operat...
Страница 7: ...ector and filter rings is calibrated at the peak response of each filter ring using a monochromatic source The calibration plane is at the front of the filter face Mercury Calibration The radiometer with detector and filter rings is calibrated at a wavelength corresponding to a mercury emission line The calibration plane is 34 mm back from the front of the filter face corresponding to the position...
Страница 8: ...ter x4 DETECTOR RS232 9V EXT EXT SUPPLY ON OFF Cover fixing screws Detector select button 4 digit LCD display MODE select button Background ZERO button FUNCTION RESET button Mode RESET button Display HOLD Function RUN button Auto manual RANGE button Power switch button ...
Страница 9: ... modes Press RESET to return to normal measurement mode FUNCTION RESET Press to reset function values to zero RESET Press to return to normal measurement mode from Manual range control or special modes Note the display hold is not reset Power on off button Display backlight on off button not fitted Detector Connector 8 pin circular screw lock type connector RS232 Connector 5 pin circular screw loc...
Страница 10: ...ET203 3UV Vis detector comprises of an aluminium housing three photodiode detectors with filter glasses amplifier and digitiser Detector Housing Black anodised aluminium alloy housing Sealed waterproof to 10 metres Cable 10 metre cable to 8 pin type connector RFF Detector UVA Detector UVB Detector ...
Страница 11: ...t s Cosine Law Maximum error is less than 3 from true response to 70 from normal incidence reference section 4 Temperature Coefficient 0 1 to 0 2 C Amplifier Gain 5x10 9 V A to 5x10 3 V A Current to Frequency 0 0 5Mhz Linearity Error 1 across ranges Temperature Range Operation 0 to 40 C Storage 20 to 60 C Spectral Response of UVA Detector 0 10 20 30 40 50 60 70 80 90 100 320 330 340 350 360 370 38...
Страница 12: ...s Cosine Law Maximum error is less than 3 from true response to 70 from normal incidence reference section 4 Temperature Coefficient 0 15 to 0 2 C Amplifier Gain 5x10 9 V A to 5x10 3 V A Current to Frequency 0 0 5Mhz Linearity Error 1 across ranges Temperature Range Operation 0 to 40 C Storage 20 to 60 C Spectral Response of UVB2 Detector 0 10 20 30 40 50 60 70 80 90 100 270 280 290 300 310 320 33...
Страница 13: ...m true response to 70 from normal incidence reference section 4 Temperature Coefficient 0 to 0 1 C Amplifier Gain 5x10 9 V A to 5x10 3 V A Current to Frequency 0 0 5Mhz Linearity Error 1 across ranges Temperature Range Operation 0 to 40 C Storage 20 to 60 C Spectral Response of RFF Detector 0 10 20 30 40 50 60 70 80 90 100 350 380 410 440 470 500 530 560 590 620 650 680 710 740 770 800 R e s p o n...
Страница 14: ...LIFIER GAIN MEASURE UVA SIGNAL SUBTRACT ZERO LEVEL DISPLAY IRRADIANCE PRESS DETECTOR SELECT BUTTON AUTO RANGE UVA AMPLIFIER GAIN MEASURE UVA SIGNAL SUBTRACT ZERO LEVEL DISPLAY IRRADIANCE ZERO MODE RANGE FUNCTION RESET RUN HOLD RESET ZERO MODE RANGE FUNCTION RESET RUN HOLD RESET PRESS DETECTOR SELECT BUTTON FOR RFF DETECTOR ...
Страница 15: ...ch for the optimum range on the detector amplifier A typical display is shown below An LED will illuminate indicating the UVA detector selection and calibration with either the mW m 2 or W m 2 units LED on 4 Press and release the UNITS switch to select the detector and calibration required 5 It is recommended that the radiometer amplifiers are nulled periodically Place the cover over the detector ...
Страница 16: ...o manual ranging Manual LED on if not yet previously in manual ranging The Average LED will now switch on but the Units LED will remain unchanged To start an average sequence press and release the HOLD RUN switch Immediately the display will show a fluctuating signal reflecting the light source fluctuations After a short time the amplitude of the fluctuations will decrease and the display will beg...
Страница 17: ...OLD mode INTEGRATE For measurements of the integrated dosage or exposure press the MODE switch to select Integrate Press the RUN switch to start the measurement The display will now autorange as the dosage increases Note the detector amplifier will not autorange and as with Average measurements if the amplifier overloads the display will show 0 L and the measurement will halt Units for integrated ...
Страница 18: ... is horizontal and a cosine corrected diffuser is fitted to the front of the detector assembly If the working surface is not horizontal then placing the detector on or parallel to the worktop is a more representative measurement of irradiance Note that all the light sources in the hemisphere above the detector will contribute to the measurement The sources may be obvious lamps or windows or even w...
Страница 19: ...incident on the detector This comes from the fact that the projected area of any surface at an angle of i is proportional to Cos i To ensure that the integration of light from all angles is correct the cosine diffuser matches the angular response so that response of the detector decreases with Cos i as the angle between the source and detector increases from 0 to 90 UV Cos 113 True Cosine Response...
Страница 20: ...importing to a spreadsheet The radiometer with detector and filter rings is calibrated using monochromatic light at the peak wavelength of each filter or at a specified wavelength ref calibration certificate Other calibration techniques can be applied to suit the users application For example matching the radiometer output to the output from a high accuracy spectroradiometer SR9910 for a particula...
Страница 21: ...eaned using a moist cloth with detergent Do not use solvent or alcohol to clean surfaces 2 The diffuser on each filter ring should be kept clean at all times 3 The radiometer is a precision instrument protect from shocks 4 Avoid supporting the detector by the multi core cable ...
Страница 22: ...Controller Keypad Liquid Crystal Display Display Driver RS232 Driver LEDs UVA Detector Amplifier Micro Controlled Display Unit Non Volitile RAM Diffuser Filter Detector Amp Gain Control v to f UVB Detector Amplifier Diffuser Filter Detector Amp Gain Control v to f RFF Detector Amplifier Multiplexer ...
Страница 23: ...ible gain ranges manual mode Reset to autorange with R command U Toggle through possible units UVA UVB RFF as applicable F Toggle through possible functions I Function reset H Toggles hold go Z Zeros light meter R Resets light meter B Toggles backlight s Sends data continuously via the RS232 t Sends one set of data via the RS232 ...
Страница 24: ...nd R capital R 8 Type t for one packet of data and s for continuous data Type s to stop the data flow 9 To save the terminal setup go to File Save As and save the settings When restarting the programme the settings can be reloaded with File Load filename Now actions 4 and 5 can be omitted Logging data continuously to a file using Microsoft TERMINAL EXE 1 Run the Terminal programme with the correct...
Страница 25: ...lect via the File Properties option to display the properties window 8 Select the Settings tab and select Auto detect for the Emulation setting 9 Click the ASCII Setup button Enter 100 into the box marked Line delay No other options are necessary Click on OK to return to the main window 10 Check the RS232 link by downloading a reading using the command t lowercase t This also allows auto detect to...
Страница 26: ...ter 3 Go to Transfer Capture Text Enter the filename for the stored data and the location to save to e g C HyperTerminal Capture txt 4 Press the start button to store all the readings transmitted from the radiometer in a file Capture txt The status bar will now show a highlighted Capture message The file is saved to the computer by selecting Transfer Capture Text Stop 5 Send the command s again vi...
Страница 27: ...which can be recycled and reused Please remember to observe the local regulations that govern both the disposal of the packaging materials accompanying this product and any used batteries DO NOT DISPOSE OF THIS PRODUCT IN YOUR GENERAL WASTE BIN Please inform yourself about your local WEEE collection system which is available for electrical and electronic products that are marked with the symbol sh...
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Страница 32: ... 9 Elphinstone Road Telephone 44 0 1875 898 083 Tranent Facsimile 44 0 1875 616 528 East Lothian E mail info irradian co uk Scotland EH33 2LG Web www irradian co uk ...
