Handbook Ref No. MH064/Issue K
File Ref: UV203V5K.doc
Page 1: ...Handbook Ref No MH064 Issue K File Ref UV203V5K doc ...
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Page 3: ... Operation 4 Irradiance Measurements 5 Cosine Angular Response 6 Calibration Description 7 Care and Maintenance 8 Optional Accessories 9 Block Diagram 10 Programming via the RS232 interface 11 Environmental care recycling and disposal ...
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Page 5: ...the measurements of germicidal lamps used for sterilization PUVA lamps used in phototherapy or monitoring industrial ultra violet lamps used in the curing of inks adhesives Listed below are some of the standard models available MODEL UV203 UV203 with detector and three filter rings DET203UV Detector amplifier UVA Cos UVB2 Cos IF 254 UV203 A UV203 with detector and filter ring DET203UV Detector amp...
Page 6: ...cators Power Switch Microprocessor reset at switch on Unit settings stored prior to shut down 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 display Character height 10mm Power Supply 9 volt PP3 battery Power Consumption Shut down mo...
Page 7: ...ges are available on request Standard Calibration The radiometer with detector 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 3...
Page 8: ... held at present reading until HOLD button is pressed again Select to run or hold a special mode MODE Select between AVERAGE MIN MAX and INTEGRATE 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 butt...
Page 9: ...tor 21mm GaAsP photodiode Responsivity Excluding filter rings Figure 1 Temperature Coefficient 0 10 C Amplifier Gain 10 9 V A to 10 3 V A Current to Frequency 0 0 5Mhz Linearity Error 1 across ranges Temperature Range Operation 10 to 60 C Storage 20 to 70 C Detector Housing Black anodised aluminium alloy housing Each optical accessory screws into the detector housing on a 1 125 x 20 T P I Cable 1 ...
Page 10: ...Irradian Limited UV203 Radiometer 6 continued Laboratory Detector DET203UV Responsivity A W Figure 1 ...
Page 11: ...aximum error is less than 3 5 from true response to 70 from normal incidence reference section 5 Filter ring assembly Black anodised aluminium alloy ring with screw thread 1 125 x 20 T P I Multiple coloured filter glasses individually selected Specially profiled diffuser for high accuracy cosine angular response DET203UV Detector with UVA Cos Filter Ring 0 10 20 30 40 50 60 70 80 90 100 320 330 34...
Page 12: ...ximum error is less than 3 5 from true response to 70 from normal incidence reference section 5 Filter ring assembly Black anodised aluminium alloy ring with screw thread 1 125 x 20 T P I Multiple coloured filter glasses individually selected Specially profiled diffuser for high accuracy cosine angular response DET203UV Detector with UVB2 Cos Filter Ring 0 20 40 60 80 100 270 280 290 300 310 320 3...
Page 13: ...HM 12 2nm Visible NIR Blocking 10 3 from 400 to 1000nm for measurements of light at normal incidence Filter ring assembly Black anodised aluminium alloy ring with screw thread 1 125 x 20 T P I DET203UV Detector with IF 254 Filter Ring 0 20 40 60 80 100 240 245 250 255 260 265 270 275 280 R e s p o n s e Wavelength nm Figure 4 ...
Page 14: ...m error is less than 3 5 from true response to 70 from normal incidence reference section 5 Filter ring assembly Black anodised aluminium alloy ring with screw thread 1 125 x 20 T P I Multiple coloured filter glasses individually selected Specially profiled diffuser for high accuracy cosine angular response DET203UV Detector with UVAB Cos Filter Ring 0 10 20 30 40 50 60 70 80 90 100 240 260 280 30...
Page 15: ...e on the detector amplifier A typical display is shown below An LED will illuminate indicating the filter rings calibration UVA UVB or AUX and the units mW m 2 or W m 2 This will be the same filter ring selected prior to the last power off 4 Press and release the UNITS switch to select the calibration factor matched to the filter ring fitted to the detector UVA for the UVA filter ring UVB for the ...
Page 16: ...he 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 begin to show a reading which represents the average light level during the...
Page 17: ...ce or in the HOLD 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 f...
Page 18: ...ser 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 walls or other reflecting surfaces Take care...
Page 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 True Cosine Response Fi...
Page 20: ...mporting 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 particular...
Page 21: ...ilter 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 1 A large range of filter rings are available including photoresist response filter rings and narrow band interference filters 2 Special high temperature probe accessories for remote measurement under high intensity lamps ...
Page 22: ... UV203 Radiometer 18 Diffuser Filter Detector Amp Gain Control v to f Counter µController Keypad Liquid Crystal Display Display Driver RS232 Driver LEDs Detector Amplifier Micro Controlled Display Unit Non Volitile RAM ...
Page 23: ...ble gain ranges manual mode Reset to autorange with R command U Toggle through possible units UVA UVB etc 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 o Sends one set of data via the RS232 ...
Page 24: ...d R capital R 8 Type o 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 ...
Page 25: ...ect 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 o lowercase o This also allows auto detect to ...
Page 26: ...er 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 via...
Page 27: ...hich 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 sho...
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Page 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 ...
