เครื่องวัดระดับความดังเสียง Sound Level Meter 840028 (SPER SCIENTIFIC USA)

Sound Level Meter with PC Interface Big backlit display, PC Interface & background sound absorber "High accuracy meets ANSI & IEC 651 Type 2 standards"

Sound Level Meter with PC Interface

Big backlit display, PC Interface & background sound absorber

• High accuracy meets ANSI & IEC 651 Type 2 standards
• Background noise absorber for machine noise measurements filters ambient noise
• RS-232 interface for capturing data directly on a PC
• Large display with backlighting and analog bargraph
• Min/Max
• Analog AC/DC outputs for connection to a recorder
• Tripod mount ideal for field use

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: +/-1.5dB @ 94dB for a 1kHz sine wave
• Microphone: Electret Condensor .24" (6mmdia.) type
• Frequency Weighting: "A" and "C" type
• Time Response: Slow/Fast
• Sampling time: updates every 0.5 seconds
• Measurement frequencey 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: 10x3.1x1.5" (256x80x38mm)
• Weight: 8.5oz (240g)