Model
407780
‐
EN
v2.3
1/14
11
Specifications
General Specifications
Applicable Standards
IEC 651 / 804 type 2 and ANSI S1.4 type 2
Measurement types
SPL, SEL, Leq, MAX-L, and MIN-L
Measurement range
30 to 130dB
Frequency Range
31.5Hz to 8kHz
Frequency weighting
‘A’ and ‘C’
Response time
FAST, SLOW, and IMPULSE selections
Linearity range
100dB
Display resolution
0.1dB
Accuracy
±1.5db (94dB @ 1kHz)
Microphone
0.5” Electret Condensor
Numeric Display
4-digit LCD
Display update rate
Twice per second
Bargraph Display
4dB per step (over 100dB range) with 50 segments
Bargraph update rate
16 times per second
Display warnings
‘OVER’ and ‘UNDER’ range status indicators
Analog outputs
DC: 10mV per dB; AC: 2Vrms full scale
Power supply
Four (4) 1.5V ‘AA’ batteries (optional AC adaptor)
Battery life
20 hours (approx.)
Operating conditions
41 to 104
o
F (5 to 40
o
C); 90% Relative Humidity
Storage conditions
14 to 140
o
F (-10 to 60
o
C); 75% Relative Humidity
Dimensions
10.4 x 2.8 x 0.8" (265 x 72 x 21mm)
Weight
Approx.
10.9
oz.
(310g)
Supplied Material
Adjustment screwdriver
Batteries (four ‘AA’ 1.5V cells)
Operation Manual
CD with Windows
TM
Software and software manual
RS-232 Interface cable
Windscreen
3.5mm plug for analog output access
