DVM322DI GB
2
Output
impedance
:
600
Ω
FS (full scale= the upper limit of each range).
DC Output
: 10mV/dB
Output
impedance
:
±
1K
Ω
Power Supply
: 1 x 9V-battery
Autonomy :
±
50hrs of continuous operation with an alkaline battery
DC adapter
: Voltage 9VDC
Supply Current 30mA DC
Socket : pin = ground, housing = +, external Ø = 3.5mm, internal Ø = 1.35mm
Electromagnetic Compatibility : RF field = 3V/m, total accuracy = specified ac 0.5dB
Operating Temperature
: 0 to 40°C / 32 to 104°F
Operating Humidity
: 10 to 90%
Storage Temperature
: -10 to +60°C / 14 to 140°F
Storage Humidity
: 10 to 75%
Memory Size
: 32000 measurements
Dimensions
: 10.8 (L) x 2.5 (W) x 1.2 (H) inch // 275 (L) x 64 (W) x 30 (H) mm
Weight :
±
285g (including battery)
Accessories
: 9V-battery, carrying case, screwdriver, user manual, windscreen, 3.5mm plug, RS-
232 cable, software for Windows.
4. Calibration
Use a standard sound level calibrator (OPTION DVM1356).
1. Use the following settings :
Display : dBA
Time Weighting : FAST
Measurement Mode : MAX MIN function deactivated
Level Range : 50 to 100dB
2. Connect the microphone with the calibrator through the
microphone connection of the DVM322DI.
3. Activate the calibrator and adjust the CAL potentiometer. The
display will indicate the desired level range. This device has
been calibrated by the manufacturer. Maximum accuracy can
be expected during a one-year period after calibration.
Consequently, the device should be recalibrated every twelve
months.
5. Preparing for Measurements
a) Inserting the battery
: Remove the battery cover at the back of the device and insert one 9V-battery.
Observe the polarity indications inside the battery compartment !
b) Replacing the battery
: The
-symbol will flash on the display when the battery needs to be replaced.
c) Connecting an DC adapter : Connect the OPTIONAL adapter
(PSU03R)
with the DC 9V connector of the
DVM322DI's side panel.
acoustic calibrator
screwdriver
