Time Weighting
Default to " Fast " time weighting
characteristics.
* " Fast time weighting " is simulated the
human ear response character.
Accuracy
Characteristics of " A " frequency
(23± 5 )
℃
weighting network meet IEC 61672
class 2.
Under 94 dB input signal, the accuracy
are :
31.5 Hz
± 3.5 dB
63
Hz
± 2.5 dB
125 Hz
± 2.0 dB
250 Hz
± 1.9 dB
500 Hz
± 1.9 dB
1 K Hz
± 1.4 dB
2 K Hz
± 2.6 dB
4 K Hz
± 3.6 dB
8 K Hz
± 5.6 dB
Remark :
The above spec. are tested under the
environment RF Field Strength less than
3 V/M & frequency less than 30 MHz
only.
Calibrator
B & K (Bruel & kjaer), multi-fuction
acoustic calibrator, model : 4226.
Microphone
Electric condenser microphone.
Size of microphone 1/2 inch standard size.
Calibration VR
Build in external calibration VR, easy to
calibrate on 94 dB level by screw driver.
Data Hold
Hold function to freeze the display value.
Operating Temp.
0 to 50 ( 32 to 122 ).
℃
℉
Operating Humidity Less than 80% RH.
Power Supply
Alkaline or Heavy duty type, 9V d.c.
006 P, MN1604(PP3) or equivalent.
Power Consumption Approx. DC 6 mA.
Dimension
250 x 70 x 28 mm ( 9.9 x 2.8 x 1.1 inch ).
Weight
250 g/0.55 LB ( including battery ).
Standard
Instruction Manual ...................... 1 PC.
Accessories
Optional
94 dB Sound Calibrator,
Accessories
Model : SC-941, SC-942.
Hard carrying case, Model : CA-06.
2
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