Справочник Пользователя для Velleman DVM1300

DVM1300 VELLEMAN

DVM1300 – LUXMETER

1. Features

•

3 ½-digit LCD display with low-battery indication

•

one single operating switch

•

light pocket-sized model

•

measures luminous intensity from 0.01 to 50.000lux

•

2000lux : reading x 10 // 50.000lux : reading x 100

2. Specifications

Display

: 1999 counts & low-battery indication

Low-Battery Indication

: “BAT” is displayed when the battery voltage drops below the operating level

Measurement Rate

: 1.5 readings/sec., nominal

Storage Temperature

: -10 to +60°C / 14 to 140°F with relative humidity < 80%

Power

: 1 x standard A23 battery of 12V

Dimensions Photo Detector : 115 x 60 x 27mm

Dimensions Device

: 188 x 64.5 x 24.5mm

Weight :

160g

Measuring Range

: 200, 2000, 20000lux (reading x 10) and 50000lux (reading x 100)

Overrange Indication

: “1” is displayed

Measuring Accuracy

: ±5% of rdg + 10 digits (<10000lux)

±10% of rdg + 10 digits (>10000lux)

Precision :

±0.1%/°C

Photo Detector

:1 silicon photo diode with filter

3. Front Panel Description

1. LCD display

: 3 ½-digit LCD display with low-battery indication (“BAT”)

2. Power/Function/range switch : Turns the power ON/OFF and selects the measurement function and the range
3. Photo detector

: Long-life silicon photo diode is built in

4. Operating Instructions

1.  Select the desired scale with the operating switch and select the desired range (“lux”, “lux x 10” or “lux x 100”).
2.  Hold the photodetector at a horizontal angle to the light source to be measured.
3.  Read the nominal measured value from the LCD display.

4. Overrange indication : if the instrument only display one “1” in the LCD, the input signal is too strong for the

selected range.

5. Replace the photo detector when the measurement is completed.
6. The spectral sensitivity of this device is very similar to the ICE curve (International Commission on Illumination)

depicted below on page 2 :