Velleman DVM401 Notice D'emploi page 8

Sound Level Measurement Range
A-weighting LO (low):
A-weighting HI (high):
C-weighting LO (low):
C-weighting HI (high):
resolution 0.1dB
Typical Frequency Range
Frequency Weighting
Time Weighting
Maximum Hold
Accuracy
Microphone
Measuring Range
Overrange Indication
Accuracy
Thermal sensitivity
Photo detector
Humidity Measurement Range 25 to 95%RH
Temperature Range
Resolution
Accuracy (after calibration)
Humidity
Humidity Sensor Response Time
Temperature
01.07.2009
DVM401
SOUND
30Hz to 10KHz
A- & C-weighting
fast
max. value does not change if the
increase in volume < 1.5dB / 3 min.
±3.5dB at 94dB, 1KHz sine wave
electret condenser microphone
LIGHT
20, 200, 2000, 20000Lux (20000Lux
reading x 10)
"1"
±5% of reading + 10 digits (calibrated
with standard incandescence lamp at a
colour temperature of 2856K)
±0.1°C
silicon photo diode with filter
HUMIDITY/TEMPERATURE
-20°C to +50°C (-4°F to +122°F) with
built-in temperature sensor
-20 to +200°C (-4°F to +200°F) for
low range
-20 to +750°C (-4°F to +1400°F) for
high range
0.1%RH, 0.1°C/0.1°F low range,
1°C/1°F high range
±5%RH (at 25°C, 35 to 95%RH)
±3% rdg ±2°C (from –20°C to
+200°C)
8
35 – 100dB
65 – 130dB
35 – 100dB
65 – 130dB
±6 min.
Rev. 02
©Velleman nv