User's Guide
Heavy Duty Meter
Model 407026
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Back to the Extech 407026 Product Page
Introduction
Congratulations on your purchase of the Extech Heavy Duty Light Meter. This light meter
offers selectable lighting types, data record/recall, relative display mode, and PC interface.
This professional meter, with proper care, will provide years of safe reliable service.
Specifications
General Specifications
Circuit Custom one-chip LSI microprocessor circuit
Display 3-1/2 digit (2000 count) LCD display with contrast adjustment
Measurement ranges LUX: 0 to 50,000 LUX (3 range); Fc: 0 to 5000 Fc (3 range);
Relative mode: 0 to 1999%
Data Hold Freezes displayed reading
Lighting Types Sodium, Daylight/Tungsten, Fluorescent and Mercury
Sensor Structure Cosine/color corrected photo-diode meets C.I.E.
Memory Store/Recall Records/Recalls Max/Min/Avg readings
Sample rate 0.4 seconds (approx.) per reading
Zero Adjust Push-button procedure
Auto Power Off After approx. 10 minutes
Data Output RS-232 PC serial interface (optional software/cable PN 407001)
Operating conditions 32 °F to 122 °F (0 °C to 50 °C); <80% RH
Power Supply 9V battery
Power consumption Approx. 5 mA DC. (approx. 200 hr battery life)
Weight 0.71 lbs. (320 g)
Dimensions Instrument: 7.1 x 2.8 x1.3" (180 x 72 x 32 mm)
Sensor: 3.3 x 2.2 x 0.7" (85 x 55 x 17.5 mm)
Range Specifications
Measurement
LUX 2,000 LUX 0-1,999 LUX 1 LUX
Foot Candles 200 Fc 0-186.0 Fc 0.1 Fc
2,000 Fc 167-1,860 Fc 1 Fc
5,000 Fc 1,670-5,000 Fc 10 Fc
Relative mode 0-1999% 1%
Range Display Resolution Accuracy
± (4% + 2 digits)
20,000 LUX 1,800-19,990 LUX 10 LUX
50,000 LUX 18,000-50,000 LUX 100 LUX
of full scale
Note: The accuracy specification above applies to calibration performed using a precision
standard incandescent tungsten light source of 2856
Test Equipment Depot, 99 Washington Street, Melrose, MA 02176
781.665.1400 | 800.517.8431 | Fax: 781.665.0780
3
O
K with meter on the tungsten setting.
Model 407026 Version 2.3 January 2004
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