Tiếng Việt
specifications Extech 407780A Integrating Sound Level Meter With USB
Applicable Standards: IEC 61672-1, 60651 and 60804 Type 2, ANSI S1.4 Type 2
Accuracy: ±1.5dB (ref 94dB@1KHz)
Resolution: 0.1dB
Digital Display: 4 digital LCD
Measurement Parameters: SPL, SPL MIN/MAX, SEL, and Leq
Measurement Range: 30dB to 130dB
Linearity Range: 100dB
Measurement Frequency Range: 31.5Hz to 8KHz
Frequency Weighting: A and C
Response: Impulse, Fast and Slow
Microphone: 1/2 ” Electret condenser microphone
Sampling time: updated every 0.5s
Bargraph: 4dB steps, 100dB range, 125ms update
- Display Warning Function
Overrange Indicator: Displayed at the upper limit
Underrange Indicator: Displayed at the lower limit
Analog AC/DC Output: 2Vrms (at full scale), 10mVDC/dB
Power Supply: Four 1.5V AA batteries, Optional AC adapter
Battery Life: Approximately 24 hours
Dimensions: 10.4×2.8×0.8″ (265x72x21mm)
Weight: 10.9oz (310g)
Introduction Extech 407780A
Leq and SEL measurements with built-in data logger and PC interface
The 407780A is an integrating sound level meter with USB. The meter takes Leq and SEL measurements with A and C frequency weighting options. The meter has a built-in data logger that records up to 32,000 records and a PC interface to easily access your logged information. Its 4 digits multifunction LCD has an analog bar graph and digital reading. With the 407780A you can program integration times, utilize impulse, fast or slow response settings and benefit from alarm features. Complete with windscreen, adjustment screwdriver, USB cable, Windows compatible software, battery, one-year warranty, and case.
Features
– 4-digit multifunction LCD with analog bar graph
– Precise linearity over a wide range (100dB)
– Display modes: SPL, SPL MIN/MAX, SEL, and Leq
– Programmable integrating time
– A and C Frequency weighting
– Impulse/Fast/Slow response settings
– Datalogging function records up to 32,000 records
– Real-time calendar/clock
– Analog and alarm output features can be used to connect with frequency analyzers, chart recorders, external data loggers, and sound level alarms
– Built-in USB interface with included Windows® data-logging software
– Tripod mount
– Meets IEC 61672-1, 60651/60804 Type 2 and ANSI S1.4 Type 2 specifications
– Complete with windscreen, adjustment screwdriver, USB cable, Windows® compatible software, battery, and case
Review Extech 407780A Integrating Sound Level Meter With USB
There are no reviews yet.