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intensi es

 are too low or too high. 

YELLOW is typically used as a warning stage indica ng the range has changed and is approaching the 
“Red” error indicator level.

GREEN

 indicates the readings are in the desired range.

The light level display and bu3ons are much smaller in the Light stack to allow a greater viewing area 
for the color indicators. 

19. Survey:

ILT's built in survey applica on allows customers to apply an address or note, which will be added to 
the date and  me stamp for captured readings.  Captured readings will be used to create a .csv file 
which can be downloaded and used to create a light survey report. 

1. To start a survey, touch the survey Icon.  Survey opens in Portrait mode and automa cally 

displays readings based on user programmed parameters. (Similar to Meter Tall).

2. Touch the  “Select Loca on” box to open the drop down selec on window.
3. To choose and exis ng address: Use the scroll bar to highlight the address.  Touch the address 

to apply. The address will not show in the Select Loca on box.

Note:  Addresses can also be imported into the ILT2500, by crea ng a custom Survey-loca ons.txt and 
uploading through the USB micro port. 

 

4. To Add or Delete of the addresses list and touch Add/Delete loca on. 
5.  To Delete: Touch in side the grey the drop down menu from the top box, Cursor to the loca on

that is to be removed, Touch the loca on to apply, With the box showing the loca on, touch 
the  “Del” delete bu3on. The Delete bu3ons border will turn blue to indicate comple on. If 
you want to back out of Delete, scroll to the top and select the blank line above the addresses.

6. To Add:  Touch inside the white add box. Use the keyboard to add an address or a note. Touch 

the Add. The add border will turn blue to indicate the new address has been saved.

7. When done adding and dele ng addresses, touch the < Back  bu3on.
8. To apply an exis ng loca on click in the Select loca on box. Use the scroll bar to highlight the 

address.  Touch the address to apply.  The address will now show in the Select Loca on box.

9. To save reading(s) touch the capture bu3on. Readings will be saved to the Survey_data_file.csv

file, accessible fie the usb micro port.  

20. Flash: 

The Flash app was designed to measure pulsed /flashing xenon light sources and other 

rapid pulsed light sources.
Key features:
• Flash profile
• 5V bias switch
• Flash integra on
• Flash counter 
•  Pre integrate zero op on
• Integrates up to 3000 readings per second, with flash slow down circuitry to measure flashes in
the µS range 
• High and low range 

To use Flash, select the Flash app icon on the home page.  

Use seLngs to apply the 5V bias

to speed up the response  me of silicon sensors(SED100, SED033, SED270 and XSD140/340
sensors).  Verify the  correct calibra on factor (if mul ple calibra on factors are available).
Use the Zero bu3on and/or set Auto-Zero before integrate to ON. Select the correct

ILT2500 INSTRUMENTATION MANUAL  Preliminary 8/18     16 OF 22

Summary of Contents for ILT2500

Page 1: ...ILT2500 Opera on Manual ILT2500 manual www intl lighttech com 1 of 22...

Page 2: ...t Measurement and Limita ons 8 9 Sample Time and Limita ons 9 10 5V Bias 9 11 Home Screen 9 12 Display Style Selec on 10 13 Display Content 10 14 Feature Bu ons 11 15 Se5ngs 11 16 Files 16 17 Light Ca...

Page 3: ...480x272 TFT Color LCD Touch enabled Backlit C Opera ng Temperature 0 40 Deg C D Storage Temperature 10 45 Deg C E Memory 4GB microSD F USB Current Draw Typical 500mA Max 900mA USB 3 0 G Bias Programm...

Page 4: ...in sensors mfg 2018 or later 2 Turn on the meter by pushing the On O bu3on down into the I posi on 3 A er a short start up menu the Home Screen will appear 4 Check the power monitor window in the upp...

Page 5: ...mbient zero is used to subtract small background light levels that are not coming from the test source With the test source o or blocked and the sensor exposed to the environment ambient light press z...

Page 6: ...al temperature can rapidly increase and cause erroneous readings and damage Standard opera ng temperature is rated at 0 400 C Do not apply any force to the display Do not apply pressure to extended st...

Page 7: ...Analog In 1 Pin6 Det Cathode Pin14 External Analog In 2 Pin7 Det Anode Pin15 N C Pin8 5Volts Warning please consult with an ILT technician before connec ng a current genera ng device that could excee...

Page 8: ...hen this condi on occurs the display will provide a SATURATION warning To prevent satura on neutral density lters or apertures can be added to the sensor or a greater distance between the sensor and t...

Page 9: ...material ILT silicon sensors include SED033 SED100 SCD110 XSD140B XSD340B XSD140A and XSD340A 11 Home Screen When the meter is turned on it will take a few moments for the so8ware to ini alize Upon c...

Page 10: ...e as fast as 1 seconds or as slow as once per hour Note See see 15I 15J for seLng bar or line graph 14 Feature Bu ons 14A Display Units Toggles between the available fields Current output is in amps O...

Page 11: ...alibra on factors 15B1 Meter Factor Selects calibra on factors from the pre programmed available list ranging from 1 20 Factor selec on allows readings in calibrated units such as W W cm2 Lux etc 15B2...

Page 12: ...es such as scanning lasers or pulses of light use FW peak For be3er averaging we recommend using min max when speed is not a factor 15G 5V Bias On or O The defaults seLng is o as there are numerous se...

Page 13: ...3 For High and Range the error level must be greater than the warning level Ie target is 1 mW cm2 1e 3 the warning must be larger than 1e 3 ie 3e 3 or 3 mW and the error must be larger than the warni...

Page 14: ...ed arrow on cal cert on page 14 15Q 5 Resul ng Light Level Allows the user to enter a know value for the light level under test and create a calibra on factor to force the meter to read the correct va...

Page 15: ...adings When the ILT2500 is connected to the computer using the USB micro cable the computer will register the ILT2500 as a device with removable storage allowing access into the Files folder To access...

Page 16: ...the loca on to apply With the box showing the loca on touch the Del delete bu3on The Delete bu3ons border will turn blue to indicate comple on If you want to back out of Delete scroll to the top and...

Page 17: ...in SeLngs The white display box shows the ash count in the upper le Note Counts was designed for rapid rises in light intensity and increases when the signal rises 4x between 100uS samples the working...

Page 18: ...generated light level measured exceeds the measurement capabili es of the system Increase the distance add a3enua on lters or add an aperture to the sensor to allow measurement of stronger signals Low...

Page 19: ...00 decreases the number of digits of strobes to count v is a programmable value of how many ashes to be measured Level selec on High Light level 3 uA to 1 mA Frequency 3 1 4 Hz Low Light 0 to 3 uA Fre...

Page 20: ...hould be plugged in during ini aliza on Insert the USB s ck into the USB A port on the side of the ILT2500 Click on Settings and Scroll to the bottom of setting window Click on the rmware update box S...

Page 21: ...pressure to the meter when the stand is in use 28A Opera ng Temperature 0 40 C ILT meters and sensors have a recommended opera ng range of 0 to 40 C to assure the accuracy of the calibrated measuremen...

Page 22: ...parts or repair by other than Interna onal Light Technologies The equipment will be repaired or replaced at our op on without charge to the owner for parts or labor incurred in such repair This warra...

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