หน้าแรก
ติดต่อเรา
บทความ
เกี่ยวกับเรา
เครื่องวัดเสียงแบบเข็ม Analog
Analog Display Sound Level Noise Meter - decibel DB, 50-126d
ราคา 1,500.-
Description
Characteristics
-
Seven sound level ranges - allow measurements from 50 - 126 dB (referenced to 0.0002ubar).
-
A and C weightings - lets you check compilance with safety regulations as well as make acoustic analysis.
-
Slow and fast response settings - lets you check peak and average noise levels.
-
Built-in battery condition indicator.
-
Phono-type output jack - for connection to home theatre or test equipment.
Specifications
Power supply: 1 x 9v Alkaline type 6LR61 Battery (included)
Measure range:
Switch setting : from 60dB to 120dB
Range of Measurement: from 50-66dB to 110-126dB
Range
Switch Setting Range of Measurement
• 60 dB 50 – 66 dB
•70 dB 60 – 76 dB
•80 dB 70 – 86 dB
•90 dB 80 – 96 dB
•100 dB 90 – 106 dB
•110 dB 100 – 116 dB
•120 dB 110 – 126 dB
Load Impedance: 10 kohm minimum
Distortion: Less than 2% at 1kHz, 0.5-volt
Microphone: Electret condenser omnidirectional becoming slightly directional with increase in frequency.
Accuracy: +/- 2dB @ 114dB
Standard: 0dB = 0.0002ubar
Weighting: A and C
Response: Fast and Slow
Signal Output: 1.0 volt(peak) minimum into open circuit, with full-scale meter deflection at 1kHz
Battery check: Tests "good" from 7.0 to 10.5 volts
Expected Battery Life: 110 working hours (alkaline battery)
Dimensions: 160 x 62 x 44mm
Weight : about 185g
ความคิดเห็น