Extech Instruments 401027 Operation & User’s Manual

netzerotools.com netzerotools.com netzerotools.com Extech 401027-NIST Pocket Size Foot Candle Light Meter ...

Extech Instruments 401027 2 Introduction Congratulations on your purchase of the Extech Pocket Foot Candle Light Meter which measures and displays light intensity in foot candle units. Two ranges can be selected (200.0 and 2000 Fc). The precision color-corrected photo-diode sensor provides 5% accuracy. This device is shipped fully tested and calibrated and, ...

Extech Instruments 401027 4 Light Sensor Spectrum Specifications Circuit Custom LSI microprocessor based design Display 13mm (0.5") 3.5 digit (1999 count) LCD display Sensor Photo-diode with color correction filter (meets CIE regulations) Out of range indication '1 ' is displayed Sampling time Approx. 0.4 seconds Power Supply 9V battery Power consumption Ap ...

Extech Instruments 401027 3 Typical Light Levels for Work Areas Foot Candles Lux Emergency Stairs, Warehouse 2 to 7 20 to 75 Exit/Entrance Passages 7 to 15 75 to 150 Packing Work 15 to 30 150 to 300 Visual Work: Production Line 30 to 75 300 to 750 Typesetting:Inspection Work 75 to 150 750 to 1,500 Factories Electronic Assembly, Drafting 150 to 300 1,500 to ...