Irradian PM203 User Handbook Manual Download Page 15 | Manualshive

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Irradian Limited

PM203 Radiometer

11

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 Volatile RAM

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Summary of Contents for PM203

Page 1: ...Handbook Ref No MH065 Issue I File Ref PM203V3I doc ...

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Page 3: ...1 Introduction 2 Specification 3 Operation 4 Battery Replacement 5 Calibration Description 6 Block Diagram 7 Programming via the RS232 interface 8 Environmental care recycling and disposal ...

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Page 5: ...ra violet visible and near infra red parts of the spectrum The meters comprise of a hand held display unit with microprocessor control and a large led backlit 4 digit liquid crystal display The remote detector assembly includes a multi range amplifier and digitiser for low noise measurements The RS232 cable supplied allows connection to a COM serial port on a computer for remote control and data l...

Page 6: ...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 Display illumination A LED back light can be switched on to illuminate the display for readings in low ambient light situations Power Supply 9 volt PP3...

Page 7: ...ded Range Option 5 full scale decades measuring from 0 to 199 99 nW 0 to 1 9999 µW 0 to 19 999 µW 0 to 199 99 µW 0 to 1 9999 mW Resolution 0 01 nW on range 1 Attenuators Other measuring ranges are available when the optical power meter is used in conjunction with a calibrated attenuator or integrating sphere Calibration Absolute calibration is traceable to National Standards 5 400 to 1100nm 7 5 24...

Page 8: ...eter DETECTOR RS232 Figure 1 4 digit LCD display Measurement select button Display backlight button λ select decrease button Background ZERO button λ select increase button Mode RESET button Display HOLD Function REF button Auto manual RANGE button Power switch button ...

Page 9: ...ce level in dBr relative measurements RESET Press to switch between 5nm λ Select and Preset wavelengths λ SELECT Use the buttons to change the calibration wavelength in 5nm steps throughout the range of the detector or to select from the preset wavelength table Power on off button Display backlight on off button Display backlight will switch off after a programmable delay factory setting 60 secs C...

Page 10: ...Response Ref Figure 2 Temperature Coefficient 0 C from 300 to 940nm Amplifier Gain 10 8 V A to 10 4 V A Current to Frequency 0 0 5Mhz Linearity Error 1 from 1nW to 100µW Temperature Range Operation 0 to 40 C Storage 20 to 60 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 The detector amplifier is connected to ...

Page 11: ...Irradian Limited PM203 Radiometer 7 continued SPECTRAL RESPONSIVITY OF SILICON DETECTOR 0 0 0 1 0 2 0 3 0 4 0 5 0 6 200 300 400 500 600 700 800 900 1000 1100 A m p s W a t t Wavelength nm Figure 2 ...

Page 12: ... pad to indicate the range units in either Watts dBm or dBr and the λ Select in either Preset or 5nm Step mode This will be the same settings prior to the last power off If the range was set to manual prior to switch off it may be necessary to RESET or manually range to give a correct display For dBr measurements the reference level is held in the non volatile memory prior to switch off and will o...

Page 13: ...ore displaying the measurement At the end of the nulling sequence the display will show Note if the photometer units are set to dBm the display will show approximately 73 0 in dBr mode the display will depend on reference level 7 Remove the light cover from the detector The equipment is now ready for use Notes i 1mW 0 dBm 0 5mW 3dBm dBm 10 log Reading mW 1mW ii To measure the power of a light beam...

Page 14: ...off the photometer before normal operation will commence Irradian holds a number of tungsten halogen lamps photometers and a silicon photodiodes which are routinely calibrated by the National Physics Laboratory in the UK Irradian estimates the absolute accuracy error in calibration of the PM203 optical power meter is 5 from 400 to 1100nm for monochromatic light source As with all measuring equipme...

Page 15: ... Limited PM203 Radiometer 11 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 Volatile RAM ...

Page 16: ... gain ranges manual mode Reset to autoranging mode with R command U Toggle through possible units Watts dBm and dBr F Increases calibration wavelength I Decreases calibration wavelength 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 17: ...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 18: ...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 19: ...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 20: ...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 24: ... 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 ...

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