5. Specifications
5.1. General Specifications
Display:
4000 counts LCD display with function of Lux,
°C, % and dB indication.
Polarity:
Automatic, ( - ) negative polarity indication.
Over-range:
“OL” mark indication.
Low battery indication: The “ ” is displayed when the battery
voltage drops below the operating level.
Measurement rate:
3 times per second, nominal.
Operating environment: 0°C to 40°C (32°F to 104°F) at <70%RH
Storage temperature:
-10°C to 60°C (14°F to 140°F) at <80%RH
Battery:
9V
Dimensions:
170 x 78 x 48mm
Weight:
335g including holster
Accuracy is given at 18°C to 28°C (65°F to 83°F), less than 70%RH.
5.2. Sound Level
Measurement range:
35 to 100dB
Resolution:
0.1dB
Frequency Range:
30Hz to 10kHz
Frequency Weighting:
C – weighting
Time Weighting:
Fast
Accuracy:
±
5dB at 94dB sound level, 1kHz sine wave.
Microphone:
Electric condenser microphone.
5.3. Light Level
Measurement range:
4000, 40,000Lux
(40,000Lux range reading x 10)
Overrate Display:
Highest digit of “OL” is displayed.
Accuracy:
±
(5% rdg +10 dgts) calibrated to standard
incandescent lamp at colour temperature
2856k).
Repeatability:
±2%
Temperature Characteristic: ±0.1% / °C
Photo Detector:
One silicon photo diode with filter.
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