User Manual
Data Logging Light Meter
with NIST-Traceable Calibration
Model 20250-00
THE STANDARD IN PRECISION MEASUREMENT
Introduction
The Digi-Sense Data Logging Light Meter (Model 20250-00) is
designed for precision light intensity measurements, in lux or
footcandles, for indoor/outdoor environments. Meter will help
you meet lighting codes and standards, ensuring safety and
quality control requirements while increasing comfort levels
and productivity. Advanced features include user-selectable
Lux/Fc units, Max/Min readings, HOLD setting, and data
logging of up to 87,000 measurements. The instrument is
fully tested and calibrated to NIST-traceable standards.
Careful use of this meter will provide years of reliable service.
Unpacking
Check individual parts against the list of items below. If
anything is missing or damaged, please contact your
instrument supplier immediately.
1. Light meter
2. USB cable
3. Software CD
4. Canvas carrying case
5. Three AAA batteries
6. User manual
7. NIST-traceable calibration report with data
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Key Features
• Wide measurement range of 0 to 400 kLux; 0 to 40 kFc
• Precision accuracy of ±3%
• User-selectable Lux or Fc units of measure
• Max/Min and Hold functions
• Record up to 87,000 measurements
• Data logging software with graphical display
• Download data via USB connectivity
• Large LCD for easy reading
• Low-battery indicator
• Auto power-off after five minutes of non-use to conserve
battery power
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Buttons
Data record button.
Use this button to enable record function when in manual
start mode. When in manual start mode, press REC button
for three seconds to start recording (the REC icon will be
displayed on the screen), then press REC button for three
seconds to end recording (the REC icon will disappear from
display). Note: You must install software and adjust settings
under “Data Logger Setting” first to enable record function
and have meter connected to PC via USB cable. (See
pages 7-8.)
Maximum/Minimum button.
Use this button to toggle between displaying the maximum
and minimum readings on the screen.
Hold button.
Use this button to freeze a measurement on the screen.
Level button.
Use this button to select the Lux or Fc measuring range.
Select the desired Lux or Fc range prior to recording data as
this function will become disabled when in record mode.
Selections include — Lux mode: 400 Lux, 4, 40, and 400 kLux;
Fc mode: 40, 400 Fc, 4, and 40 kFc.
Backlight button.
Use this button to enable or disable the backlight for the
display.
Lux/Fc button.
Use this button to select Lux or Fc as the unit of measure.
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