EXTECH407750数字式分贝计/声级计

EXTECH407750数字式分贝计/声级计

Digital Sound Level Meter

Features:
? Auto/Manual ranging from 30 to 130dB in 6 ranges
? Meets ANSI and IEC Type 2 standards
? A and C selectable frequency weightings
? Fast and Slow selectable response times
? Background noise absorber mode for machine noise
measurements filters ambient noise
? Large 3 1/2 digit display with 0.1dB resolution
with backlighting and analog bargraph
? Electret condenser microphone provides 1.5dB accuracy
? Min/Max plus analog output and tripod mount
? Max Hold latches maximum value on display
? RS-232 interface for capturing data directly
on a PC, optional Windows? compatible software
? Complete with batteries and carrying case
Applications:
? Machine noise evaluation
? OSHA compliance testing
? Community noise measurement
? Noise ordinance
? PC interface for data collection

Specifications
Digital Display 3-1/2 digit (1999 count) Autorange LCD
Bargraph Display 50dB display range (1dB resolution);
Measurement Range 30 to 130dB (35 to 130dB for “C” weighting)
Resolution 0.1dB
Accuracy ±1.5 dB @ 94dB for a 1kHz sine wave
Microphone Electret Condensor .24"(6mm dia.) type
Frequency Weighting “A” and “C” type
Time Response Slow/Fast
Sampling time updates every 0.5seconds
Measurement frequency range 31.5Hz to 8KHz
Analog output AC: 0.707Vrms (full scale); DC: 10mVDC/dB
Applicable Standards IEC 651 Type 2, ANSI S1.4 Type 2
Power Supply 9V battery , optional AC adaptor
Dimensions 10 x 3.1 x 1.5"(256 x 80 x 38mm)
Weight 8.5oz. (240g)