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Summary of Contents for Triplett LT68
- Page 1 5 Commonwealth Ave 5 Commonwealth Ave Woburn, MA 01801 Woburn, MA 01801 Phone 781-665-1400 Phone 781-665-1400 User Manual Toll Toll Free 1-800-517-8431 Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com LT68 Datalogging Light Meter...
- Page 2 Congratulations on your purchase of the Triplett LT68 Digital Light Meter. The LT68 measures illuminance in Lux and Foot candles (Fc). The LT68 is a Datalogger and includes a PC interface and Windows compatible software for downloading data. Up to 16,000 readings can be stored on the meter for download to a pc and 99 readings can be stored and viewed directly on the meter’s LCD display.
- Page 3 Display Description 1. Clock Setting Modes 2. Clock Display 3. Relative Mode Icon 4. Auto Power OFF (APO) Icon 5. Low Battery Icon 6. Data Hold Icon 7. Peak Hold Modes 8. Range Indicators 9. Unit of Measure 10. Digital Display 11.
- Page 4 Unit of Measure Press the UNITS button to change the unit of measure from Lux to Fc or from Fc to Lux Range Selection Press the RANGE button to select the measurement range. There are four (range) selections for each unit of measure. The range icons will appear to identify the range selected.
- Page 5 bargraph display will remain active displaying the current light level. To exit the Peak Hold mode and return to the normal operating mode, press the PEAK button a third time. Maximum (MAX) and Minimum (MIN) Reading Memory The MAX-MIN function allows the meter to store the highest (MAX) and lowest (MIN) readings.
- Page 6 Press the backlight button to activate the backlight. Press the backlight button again to switch the backlight off. Note that the backlight will turn off automatically after a short period of time in order to save battery energy. The backlight function uses extra battery energy. To conserve energy, use the backlight feature sparingly.
- Page 7 ‘CL’ appears in the memory location field on the LCD 16,000 Point Datalogger The LT68 can automatically record up to 16,000 readings in its internal memory. To view the data, the readings must be transferred to a PC via the supplied software.
- Page 8 USB PC Interface Description The LT68 meter can be connected to a PC via its USB interface. A USB cable, along with Windows software, is included with the meter. The software allows the user to: Transfer previously stored readings from the meter’s internal memory to a PC...
- Page 9 Battery Installation / Replacement The battery compartment is located on the back of the meter. The compartment is easily accessed by pressing and sliding the rear battery compartment cover off of the meter in the direction of the arrow. Replace or install the 9V battery and close the battery compartment by sliding the compartment cover back onto the meter.
- Page 10 Specifications Range Specifications Units Range Resolution Accuracy ± (5% rdg + 10 400.0 digits) 4000 ± (10% rdg + 10 40.00k 0.01k digits) 400.0k 0.1k Foot ± (5% rdg + 10 candles 40.00 0.01 digits) 400.0 ± (10% rdg + 10 4000 digits) 40.00k...
- Page 11 Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.
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