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14
Maximum (MAX) Minimum (MIN) Function
The MAX/ MIN mode allows the user to view only the lowest (MIN)
or highest (MAX) readings.
Press the MAX/ MIN button once and “MAX” appears on the display.
The LCD is now displaying the maximum reading of the selected
parameter in the display. The display will not change until a higher
reading is registered.
Technical information
Specifications
Start-up the unit
Insert the battery
Open the battery cover and insert the 9 volt battery according to the
correct polarity.
Power
Press the power button to start normal measurement.
Messung
1) Hold the instrument comfortably in hand or fix on tripod and
point the microphone at the suspected noise source, the
sound pressure level will be displayed.
2) When MAX/MIN (maximum/minimum hold) mode is chosen.
The instrument captures and holds the maximum or minimum
noise level for a long period using any of the time weightings
and ranges.
3) If it appears, battery should be replaced with new one.
Automatic Power OFF
To conserve battery life, the meter automatically turns off after
15 minutes.
Attention!
Wind blowing across the microphone would bring additional extra-
neous noise.
Once using the instrument in the presence of wind, it is a must to
mount the windscreen to not pick up undesirable signals.
Press the MAX/ MIN button again and “MIN” appears on the display.
The LCD is now displaying the minimum reading of the selected
parameter in the display. The display will not change until a lower
reading is registered.
Press the MIN/MAX button for 3 seconds to exit the MIN/MAX
mode, and the “MAX” or “MIN” icon will disappear.
Replacing the battery
It is neccessary to replace the battery when the battery symbol
appears. Open the battery case on the rear side. Insert a new
alcaline battery. Connect the battery with the correct polarity with
the battery-clip. In order to avoid leaking batteries replace weak
batteries asap. In case of leaking batteries use gloves and goggles
for personal protection.
Frequency range:
31.5Hz~8KHz
Measuring level range: 40~130dB
Frequency weighting: A
Microphone:
1/2 inch electret condenser microphone
Display:
LCD
Digital display:
4 digits
Resolution:
0.1dB
Display Up data:
0.5 sec.
Time weighting :
FAST (125mS)
Accuracy:
± 3.5dB @1kHz, 94dB(under reference
conditions)
Alarm function:
“OVER” is show when input is out of
range(>130dB)
Auto power off:
Meter automatically shuts down after
approx. 15 minutes of inactivity.
Power supply:
One 9V battery,
006P or IEC 6F22 or NEDA 1604.
Operation temperature: 0 to 40°C (32 to 104°F)
Operation humidity:
10 to 90%RH
Содержание MS 85
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