ⅡGENERAL SPECIFICATIONS

Display: 3 1/2 digits LCD display, maximum reading value display 1999

Ranges: 1-50,000Lux. (3 Ranges)

20,000Lux range: reading×20

50,000Lux range: reading×50

Resolution: 1Lux

Accuracy: ≤10,000Lux: ±4%rdg±0.5f.s

≥10,000Lux: ±5+10digits (Calibrated to standard incandescent lamp at color temperature 2856K)

Repeatability: ±2%

Temperature Characteristic: ±0.1%/℃

Test rate: 0.2times/sec.

Photo detector: one silicon photo diode with filter.

Operation temperature-humidity: -10℃ to 40℃(32℉-104℉) 0～70%Rh

Storage temperature-humidity: -10℃ to 50℃(14℉-140℉) 0～80%Rh 

Over-input: indication of “1” (2,000Lux/20,000Lux)

Indication of “OVER” (50,000Lux)

Dimension: 165×57×32mm

Weight:155 g

Power Supply one 9V battery, Consumption current approx.2mA

Accessories: Instruction-manual

 

 

PANEL DESCRIPTIONS:

photo detector

LCD display

range select button

turn off, turn on, value hold

Back Light Button Switch

 

 

Connect the battery, and then press the button to “ON”

Press the range selection switch to desired range.

Remove the photo detector cap and face it to light source in a horizontal position.

Read the test value from the LCD display.

Over range: if the instrument only display one “1” in the M.S.D., the input signal is too strong, and a higher range should be selected.

Data-Hold mode: press the HOLD key to select Hold model. When HOLD mode is selected, the LUX meter stops all further measurements and the test value with hold on the LCD. Press the button “HOLD” to the “ON”, the hold value will be cancelled.

When the measurement is completed, replace the photo detector cap and turn the power selector OFF

 

BATTERY CHECK-UP & REPLACEMENT:

It is necessary to replace another one 9V battery, when left corner of LCD display show“ ”.

After turning off the meter, press the battery cover and push in the direction of the arrow to open.

Disconnect the batter from the instrument and replace it with a standard 9-volt transistor battery and go for the cover.

MAINTENANCE:

 

The white plastic disc on the top of the detector should be cleaned with a damp cloth when necessary.

 

Do not store the instrument where temperature or humidity is excessively high.

 

The reference level, as marker on the face plate, is the tiof thep photo detector globe.

 

The calibration interval for the photo detector will vary according to operational conditions, but generally the sensitivity decreases in direct proportion to the product of luminous intensity by the operational time. In order to maintain the basic accuracy of the instrument, periodic calibration is recommended.

ⅧRECOMMENDED ILLUMINATON：