Digital Light Meter w/Data Logging SD Card DLM112SD
General Tools Light Meter w/Excel-Formatted Data Logging SD Card
Accurately Measures Light Intensity in Lux or Foot-Candles Using Three Automatically Switched Full-Scale Ranges. (See Below For Available Accessories)
Light Measurement Applications:
This instrument’s unique feature is its patented technique for storing sampled data in Excel format on removable SD memory cards.
Light Meter Included Accessories:
Digital Light Meter Specifications:
Embedded Microcontroller: Custom one-chip LSI device
Display Type: LCD with green backlight
Display Size: 2.05 x 1.5 in. (52 x 38mm)
Full-Scale Ranges:
0 to 1,999 lux (0 to 186 ft-cd)
1,800 to 19,990 lux (167 to 1,860 ft-cd)
18,000 to 99,900 lux (1,670 to 9,290.7 ft-cd)
Measurement Accuracy:
± 4% of full-scale reading + 2 digits for all lux readings and ft-cd readings at 200 ft-cd full-scale (f.s.)
± 4% of f.s. reading + 2 ft-cd at 2,000 ft-cd f.s.
±4% of f.s. reading + 20 ft-cd at 20,000 ft-cd f.s.
Measurement Resolution :
1 lux at 2,000 lux f.s.
10 lux at 20,000 lux f.s.
100 lux at 100,000 lux f.s.
0.1 ft-cd at 200 ft-cd f.s.
1 ft-cd at 2,000 ft-cd f.s.
10 ft-cd at 10,000 ft-cd f.s.
Storable/Recallable Readings: Maximum, minimum
Data Logging Sampling Time: 1 second to 1 hour
SD Card Capacity: 1 GB to 16 GB
Settable Parameters: Date, time, auto power off, beep sound, temperature unit (°F or °C), sampling time, thermocouple type (K or J), decimal point or comma
Operating Temperature: 32° to 122°F (0° to 50°C)
Operating Relative Humidity: 0 to 85%
Power Supply: Six Alkaline “AA” batteries
Power Consumption:
6.5 mADC (normal operation, with backlight off and SD card not saving data)
30 mADC with backlight on
Dimensions of Meter: 6.97 x 2.68 x 1.77 in. (177 x 68 x 45mm
Weight of Meter: 1.08 lb. (489g)
Why Excel-formatted SD cards are a breakthrough in data logging technology:
No muss. Unlike data loggers that use an RS-232 interface, General’s SD card instruments don’t require the end user to buy, stock and connect cables.
No fuss. They also don’t require the user to add multiple jumpers between cable connectors to set up a serial communications link via RS-232. Adding even one jumper takes time and makes connections prone to failure.
No software. General’s SD instruments don’t even need software. The automatically store the data they capture in a format readable by Microscoft’s Excel spreadsheet program. Any computer equipped with Excel will automatically display – as a table or graph – the data logs on an SD card inserted into it.
No limits . SD cards are now available in capacities up to 32 GB. They’re not just a high-capacity storage medium, but a removable one as well. And because they’re solid-state, SD cards are inherently more reliable than rotating electromagnetic media like CD’s or DVD’s.
No waste. Because the SD cards are removable, they’re portable. Once you’re done uploading the data logs on an SD card to your computer, you can erase the card and use it again – with the same SD card instrument or a different one.
