Description
PPM LED Bar Graph 30 Segment 66mm LED DB Meter Sound Pressure Level Meter Module LED Panel Mounting Bar
Product Description
VF series PPM LED bargraph meter modules can accept andinterpret audio signal and programme signal which is transmitted by lines and generate audio level for display. The module canachieve PPM peak programme level meter's bar display, bar display with peak-hold, dot display and dot display with peak-hold by keyboard. Sensitivity of transmission channel can be adjusted by the parts on module, so display's dynamic range can beadjusted easily. Audio input can connect the signal to the preamplifier (circuit) or power amplifier output port by PH port connector or other two connectors.The signal is sent to the LED bar to display after peak detection, transfer amplification and processed by software. Because of wide impedance match range, the module can be widely used in the volume display of audio system's audio output, sound console output, programme signal transmitted by lines,volume output by power amplifier and the peak programme levelin the process of programme recording. It can monitor the peak level of the signal well, in case of the audio system overmodulationor overload. The module has wide range power supply, low power consumption. The bargraph can be a single color,such as red, green, yellow etc.or can be two or more colors to display separately,which represent different function region and improve the visual effect of programme.
Specification
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item
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value
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Input Impedance
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200kohm, balanced; 100kohm, unbalanced
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Output Level For '0" Indlcation
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+6dB(at default state)
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lnput Range
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-40dB~+3dB(at default state)
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Amplitude-Frequency Characteristic
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1dB±1segment [31.5Hz~16KHz]
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Sensitivity Adjustment Range
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3 dB
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Response Time
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10ms
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Return Time
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1.5S
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Peak Hold Time
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2S
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Peak Return Time
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3S
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Effective Beam Number
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30 segments
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Bargraph Length
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66 mm
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Bargraph Width
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4.5 mm
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Segment Pitch
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2.3 mm
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Power Supply and Range
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Non-laolated:
Normal:DC5V±10% Optional: DC12V(10~15V) DC24V(20-28V)
lsolated:
DC5V±5%, DC12V±5%, DC24V±5%； lnsulating Intension: DC1000V 1min
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Power Consumption
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360mW(F.S.)
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Environment
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-30~70℃ &
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Details Images