background image

403125  V3.1  9/06 

Meter Description 

1. LCD 

display 

2. Pushbuttons: 

 

Backlight      and PEAK button – Momentarily press this button to 
activate/deactivate the Peak Hold function. The 

PMAX

 display icon will appear. 

In the Peak Hold mode of operation, only the highest reading will be displayed. 
Press and hold this button for 2 seconds to switch on the backlight. Press and 
hold this button again for 2 seconds to turn the backlight off. 

 

RANGE button – Press to select the 
desired lux or fc range. Each press of the 
RANGE button selects a new range. The 
available ranges are 20, 200, 2000, and 
20,000 lux or foot candles. Displays in 
the 20,000 range must be multiplied by 
10. 

 

HOLD button – Press to freeze the 
displayed value (the 

H

 icon will switch 

on). Press again to exit the Data Hold 
mode. 

3. 

Sensor cable – Connects sensor to meter 

4. 

Sensor (sensor cover not shown) 

5. 

Sensor mounting plugs -  Fits into docking 
jacks at top of meter 

6. 

Docking jacks – Sensor can be attached here 
for storage or while measuring. 

7. 

Function switch – Three positions OFF, LUX, 
and FC 

8. 

Handle and battery compartment (rear) 

9. 

Analog output jack 

 

Содержание 403125

Страница 1: ...User s Guide Digital Light Meter Model 403125 ...

Страница 2: ...or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Introduction Congratulations on your purchase of the Extech 403125 Digital Light Meter This portable compact light meter provides lux and fc measurements This meter includes a backlit LCD...

Страница 3: ...ote that the 20 000 range is displayed in the x10 mode meaning that the display must be multiplied by 10 Resolution 0 01 lux fc maximum Accuracy 20 200 ranges 5 of reading 10 digits 2000 20 000 ranges 3 of reading 10 digits Accuracy note Stated accuracy for 9 o F at 73 o F 5 o C at 23 o C 70 Relative Humidity Spectral response CIE photopic Note The CIE photopic curve is an international standard f...

Страница 4: ...o select the desired lux or fc range Each press of the RANGE button selects a new range The available ranges are 20 200 2000 and 20 000 lux or foot candles Displays in the 20 000 range must be multiplied by 10 HOLD button Press to freeze the displayed value the H icon will switch on Press again to exit the Data Hold mode 3 Sensor cable Connects sensor to meter 4 Sensor sensor cover not shown 5 Sen...

Страница 5: ...highest reading of a given measurement period press the PEAK button at the start of a measurement period The PMAX display icon will switch on in the PEAK mode and the display will only show the highest reading Momentarily press the PEAK button again to exit the PEAK mode 7 Press and hold the PEAK button for seconds to activate the display backlight Press and hold the PEAK hold button again for 2 s...

Страница 6: ...g Output The meter can be connected to a chart recorder or other analog recording device via the output jack at the bottom of the meter A mono two wire 2 5mm plug and cable not supplied are required The analog output is 0 1mVDC per display digit ...

Страница 7: ...t screw Cleaning Use only a lightly damp cloth to clean the meter Do not use abrasives solvents or harsh detergents Keep the plastic sensor dome clean and free from scratches it may be cleaned with a soft cloth and isopropyl alcohol Typical Light Levels for general reference only Foot candles Lux Typical Light Levels 10000 107600 Sunlight 1000 to 10000 10760 to 107600 Operating Room 100 to 1000 10...

Страница 8: ...tech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 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 ...

Отзывы: