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Jelight JEL-2400, Руководство по эксплуатации

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Jelight JEL-2400 Скачать руководство пользователя страница 17

 

Page 17 

15N. Dim Display After time settings

: 

Sets the time in minutes before the display will dim to save on battery life. Times range 
from 5 min - 60 min and also includes Never. 

 

15O. Turn Off Display After time settings

: 

Sets  the  time  in  minutes  before  the  display  will  shut  off  to  save  on  battery  life.  Times 
range from 5 min - 60 min and also includes Never. 

 

Maintenance

 

 
15P. Set Date and Time: 

Allows the user to set  the date and time which are then used to create file names and 
date/time stamps on the saved .csv files as discuss in 16 above. 

 

15Q. Manage Calibration Factors >

 

:

 

Creating  calibration  factors  and  use  of  customer  generated  factors  can  cause 
errors  in  light  level  readings.  The  calibration  factors  listed  in  the  Optical 
Calibration  Certificates  included  are  N.I.S.T.  traceable  and  are  performed  in  our 
ISO17025  accredited  lab  by  trained  and  experienced  technicians.  Use  of  altered 
calibration factors can void traceability.

 

 

15Q.1. Factor Number: 

Numbers  range  from  1-20. The  JEL-2400  stores  up  to  20  calibration  factors  which 
are selected using Factor number as shown in section in 15B. 

 

15Q.2. Factor Description:

 

Enter a nick name, component model&Serial number, or sensor stack i.e. lux sensor, 
UVC#234

. 

(Note: spaces are converted to a “-”). 

 

15Q.3. Factor:

 

Units Enter the units for the readout i.e. lux (Note: Sp

aces are converted to a “-”). 

 

15Q.4. Sensitivity Factor: 

Enter sensitivity factor from the calibration certificate. 2.09e-09. 

 

15Q.5. Resulting Light Level: 

Allows  the  user  to  enter  a  known  value  for  the  light  level  under  test  and  create  a 
calibration factor to force the meter to read the correct value. 
i.e.  LED  with  40  lumens  is  measured.  Enter  40,  press  set. A  new  calibration  factor 
will  be  created  to  read  40  and  auto-range  up  and  down  through  other  light 
intensities. 

 

15Q.6. Factor Adjustment: 

User  can  enter  a  value  to  alter  the  calibration  factor  by  for  example  if  adding  a 
neutral density filter with attenuation of 10, enter 10 and press set. A new calibration

 

factor, that has changed by 10, will be entered in the next available channel. 

 
 
 

Содержание JEL-2400

Страница 1: ...ELIGHT OPERATING INSTRUCTIONS JEL 2400 RADIOMETER PHOTOMETER Rev X J Jelight Company Inc 2 Mason Irvine CA 92618 USA Tel 1 949 380 8774 Fax 1 949 768 9457 http www jelight com e mail sales jelight com ...

Страница 2: ...USB Ports 8 7 Display 8 8 Current Measurement and Limitations 9 9 Sample Time and Limitations 10 10 Reverse Bias 10 11 Home Screen 10 12 Display Style Selection 10 13 Display Content 11 14 Feature Buttons 12 15 Settings 13 16 Files 18 17 Light Calc 19 18 Sleep 19 19 Survey 19 20 Info 20 21 Upgrades 20 22 Care and Handling 21 23 Warranty 22 24 Calibration 22 ...

Страница 3: ...onds or use Auto based on light level H2 Recording Interval Select from 1 second up to 1 hour or use Sample to match the Sample Time for faster speeds H3 Chart Update Time Trend Select from 3 times per second up to once per hour I Dimension 3 x 6 x 1 5 J Weight 8 lbs 3 Quick Reference Guide 3A Front The front panel of the JEL 2400 is a full color 4 3 capacitive TFT touch screen display The display...

Страница 4: ... during testing tighten screws on each side of sensor connector 3E Quick Setting Guide If your meter and sensor were purchased together along with optical calibrations your device s will arrive with factory pre programmed optical calibration factors See 15B Manage Calibration Factors for self programming of calibration factors as needed i Turn on the meter by pushing the On Off button down into th...

Страница 5: ... find the correct sensitivity factor as noted on your certificate if you do not locate your calibration factor and units from the certificate go to 15B to learn about adding changing calibration factors Touch the back button to return to the home screen 3F2 Zero There are two kinds of zero that can be used to improve accuracy A dark zero is used to remove small ambient noise caused from the enviro...

Страница 6: ...ero Takes a measurement and creates a zero value by subtracting the zero measurement reading from all future readings see 3F2 above to learn more about assuring an accurate zero 3G7 Hold Freezes the numerical display value on screen 3G8 100 Takes a measurement and saves it as the 100 baseline for Transmission and OD 3G9 Capture Takes a single measurement Captured measurements are appended to the s...

Страница 7: ... fastest when the power button is in the off position The JEL 2400 circuit is design to prevent over charge The JEL 2400 has a low power indicator that will advise when the battery needs recharging 5 Sensor Connector and Wiring The 15 pin D Sub miniature connector on the top of the JEL 2400 was selected to allow backwards compatibility with existing D sensors Future JEL 2400 sensors will be suppli...

Страница 8: ...sed for code updates and requires the use of a memory stick not included DATA Accesses the internal 4 Gb memory device where data is saved and to charge the battery The Micro USB is used to download stored data and to erase data from the memory device This port can also be used the charge the battery PC The Mini USB port is used to connect to a computer and to charge the battery 7 Display The Disp...

Страница 9: ...decades of current and or light levels While autoranging the JEL 2400 can experience saturation When this condition occurs the display will provide a SATURATION warning To prevent saturation neutral density filters or apertures can be added to the sensor or a greater distance between the sensor and the source can be used Note D type sensors have been designed to assure a safe current value is supp...

Страница 10: ...is turned on it will take a few moments for the software to initialize Upon completion the home screen will be displayed To return to the home screen at any time simply touch on the Back arrow in the top left of the display in settings screens or touch on the home icon within a measurement screen note it is possible skip the home screen by changing the start up app in settings 12 Display Style Sel...

Страница 11: ...res when intensities are too low or too high YELLOW is typically used as a warning stage indicating 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 buttons are much smaller in the Light stack to allow a greater viewing area for the color indicators Note for error message Light Stack is not conf...

Страница 12: ...n the conditions in the environment fluctuate temperature noise ambient lighting 14C Integrate Is used to measure dosage or exposure When toggled on the JEL 2400 will take the present reading and add it to the previous value once per second creating a sum of light measurements over time When in integrate mode the units of the readings change to include seconds For example Lux becomes lux seconds W...

Страница 13: ...play which allows for user customization Settings can also be accessed by clicking on the setting drop down menu in the display screens 15A Display Brightness Brightness selection ranges from 1 Dim with lowest battery consumption to 10 Brightest with highest battery consumption Radiometer Settings 15B Calibration factors 15B1 Meter Factor Selects calibration factors from the pre programmed availab...

Страница 14: ... setting the range 15E Gain Range When Auto Gain Range is set to off in section D above Gain Range becomes accessible The user can select the range based the max current to be measured i e 1 mA 3uA or 300 nA Each relay allows the JEL 2400 to measure approximately 3 4 decades with the max being the saturation point and noise become problematic as the reading approaches 0005 from the max To determin...

Страница 15: ...l and sample time are synched i e if sample time is set to 1 the meter will record a value every 1 seconds Trend Chart Settings 15I Chart Type Select a bar graph or line graph 15J Update Interval Select the time between updates to the display from 1 sec to 1 hour Error and Warning Level Settings 15K Light Stack Setting Settings for light stack will determine when the screen turns Red Yellow and Gr...

Страница 16: ...ific notation on i e 1 06e 3 W cm2 to Scientific notation off i e 001 W cm2 2e 2 lux becomes 200 lux Note the Display on the JEL 2400 allows up to 3 digits after the decimal place When using scientific notation on the device can display readings as low as e 13 with two decimal places ie 6 23e 13 When scientific notation is off it is not possible to display low values such as 000000000000623 In ord...

Страница 17: ...d traceability 15Q 1 Factor Number Numbers range from 1 20 The JEL 2400 stores up to 20 calibration factors which are selected using Factor number as shown in section in 15B 15Q 2 Factor Description Enter a nick name component model Serial number or sensor stack i e lux sensor UVC 234 Note spaces are converted to a 15Q 3 Factor Units Enter the units for the readout i e lux Note Spaces are converte...

Страница 18: ...all settings to memory until Save Settings is pressed again When applied a box will appear around the button to indicate completion 15U Restore Defaults Returns all datalight software settings back to the factory default values Restore does not erase or alter calibration factors or any save data within the device 16 Files The csv files saved in the Files folder can be accessed using both internal ...

Страница 19: ...d the distance in meters 18 Sleep Manually sets the screen to dark to conserve battery Simply touch the display at any time to turn off sleep mode and re illuminate the display 19 Survey The built in survey application allows customers to apply an address or note which will be added to the date and time stamp for captured readings Captured readings will be used to create a csv file which can be do...

Страница 20: ... address will now show in the Select Location box ix To save reading s touch the capture button Readings will be saved to the Survey_data_file csv file accessible via the USB micro port 20 Info Lists product and software settings including model no serial no calibration information software and firmware information and user programmable selections such as sample time range selection etc 21 Upgrade...

Страница 21: ... a recommended operating range of 0 Deg C to 40 Deg C to assure the accuracy of the calibrated measurements 22B Humidity 0 95 non condensing 22C ESD Use basic ESD precautions and practices when handling the device It is advisable to discharge any static buildup by touching a grounded conductive surface before making contact with devices or its connectors 22D Cleaning No chemicals or liquid solutio...

Страница 22: ...t Jelight for assistance An alternative method to verify calibration is to use a second detector One detector is kept stored in an out of the way place while the second is used to work with Whenever the calibration of the work detector is to be checked or is in question the stored detector is then taken out of storage and the results from the two are compared If they compare it is reasonable to as...

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