User's Guide Heavy Duty Meter Model 407026
Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies on sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website at www.extech.
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.
Meter Description 1 LCD Display 2 Keypad 3 Light sensor 4 Battery compartment (rear) 5 Sensor input 6 RS-232 PC Interface jack 7 Protective Holster 8 LCD Contrast Adjust 6 5 7 1 8 2 4 3 4 Model 407026 Version 2.
Operation Meter Power and Automatic Power Off 1. Press the POWER button to turn the meter on. If the display does not switch on, check the 9V battery. 2. Press the POWER button again to turn the meter off. 3. The meter has an automatic power off feature that conserves battery energy. After 10 minutes the meter automatically shuts off. To defeat this feature, press the RECORD button to put the meter in the recording mode. Display ZERO Calibration Please perform a zero calibration before each use.
Data Hold While measuring, press the HOLD button to freeze the reading. The LCD will display D.H. indicating that the Data Hold function is engaged. Press HOLD again to return to normal operation. Relative % Mode In the RELATIVE mode of operation, the meter displays light level as a comparison to a reference value. The reference value is stored by pressing the ‘%’ button while the desired light level reference is on the display.
Typical Light Levels Lux Foot Candles 20-75 2-7 75-150 7-15 Lux Foot Candles Emergency Stairs, Warehouse 100-150 10-15 Washing Exit/Entrance Passages 150-200 15-20 Recreational Activities Drawing Room, Table Factories Home 150-300 15-30 Packing Work 200-300 20-30 300-750 30-75 Visual Work: Production Line 300-500 30-50 Makeup 750-1,500 75-150 Typesetting: Inspection Work 500-1,500 50-150 Reading, Study 1,5003,000 150-300 Electronic Assembly, Drafting 1,000-2,000 100-200
Calibration and Repair Services Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the Customer Service Department for information on calibration services available for this product. Extech recommends that annual calibrations be performed to verify meter performance and accuracy. Support Hotline (781) 890-7440 Tech support: Ext. 200; Email: support@extech.com Repair/Returns: Ext. 210; Email: repair@extech.com Website: www.
