Sound Level Meter

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• Main functions are designed to meet IEC 61672 class 2.
• A & C weighting networks comply with standards.
• 0.5" standard microphone head.
• Time weighting (Fast & Slow) dynamic characteristic modes.
• Build External calibration VR.
• Auto range & Manual range selection.
• Available for external calibration adjustment.
• Condenser microphone for high accuracy & long-term stability.
• Memory function to store the Max. & Min. value.
• Hold and Peak Hold functions.
• Real time SD memory card Datalogger, it Built-in Clock and Calendar, real time data recorder, sampling time set from 1 second to 3600 seconds.
• Manual datalogger is available ( set the sampling time to 0 second ), during execute the manual datalogger function, it can set the different position ( location ) No. 1-99
• Innovation and easy operation, computer is not need to setup extra software, after execute datalogger, just take away the SD card from the meter and plug in the SD card into the computer, it can download the all the measured value with the time information (year /month /date /hour /minute /second ) to the Excel directly, then user can make the further data or graphic analysis by themselves.
• SD card capacity: 1 GB to 16 GB.
• LCD with green light back light, easy reading.
• Can default auto power off or manual power off.
• Data hold, record max. and min. reading.
• Microcomputer circuit, high accuracy.
• Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.
• RS232/USB PC COMPUTER interface.
• Heavy duty & compact housing case

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• Large LCD display, easy to read.
• Time weighting and frequency weighting meet, IEC 61672 class 2.
• A & C weighting networks are conformity to standards
• 0.5" standard out size of the microphone.
• Time weighting (Fast & Slow) dynamic characteristic modes.
• AC / DC output for system expansion.
• External calibration VR
• Condenser microphone for high accuracy & long-term stabiilty
• MAX. HOLD function for stored the maximum value.
• Warning indicator for over and under load.
• Low battery indicator
• LCD display for low power consumption & clear read-out even in bright ambient light condition.
• Used the durable, long-lasting components, including a strong, light weight ABS-plastic housing case.
• Pocket and light weight design allow one hand operation.
• Power by 006P DC 9V battery or DC 9V adapter

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• LCD digital display, Analog bar indicator, wide dynamic range,
• Auto/Manual range, Fast/Slow response selectable,
• Max value hold function, A/C weighting selection,
• Date weighting selection, AC/DC auxilitary output

• Measurement range: 30db~130db
• Accuracy: ±2db
• Resolution: 0.1 db
• Display: 3 ½ digits
• Sample rate: 2 times/s
• Frequency range: 30Hz~8KHz
• Over range indication: “UNDER” or “OVER”
• Auxilitary output: AC 0.707 Vrms at full range for each level, impedance 600Ω DC 10m V/DB, impedance 100Ω
• Battery voltage: 6x1.5VAAABacklight, Low power indication

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• Large LCD display, easy to read.
• Max. Hold function for stored the maximum value on display.
• Frequency weighting networks are designed to meet the IEC 651 type 2.
• Warning indicator for over and under load.
• LCD display for low power consumption & clear read-out even in bright ambient light.
• A & C weighting networks are conformity to standards.
• Time weighting(FAST & SLOW) dynamic characteristic modes.
• Used the durable, long-lasting components, including a strong,light weight ABS-plastic housing case.
• AC/DC output for system expansion.
• Build in adj. VR is available for easy calibration.
• Small and light weight design allow one hand operation.
• Condenser microphone for high accuracy & long-term stability.
• Low battery indicator.

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Features:

• Large LCD display, easy to read.
• Max. Hold function for stored the maximum value on display.
• Frequency weighting networks are designed to meet the IEC 651 type 2.
• Warning indicator for over and under load.
• LCD display for low power consumption & clear read-out even in bright ambient light.
• A & C weighting networks are conformity to standards.
• Time weighting(FAST & SLOW) dynamic characteristic modes.
• Used the durable, long-lasting components, including a strong,light weight ABS-plastic housing case.
• AC/DC output for system expansion.
• Build in adj. VR is available for easy calibration.
• Small and light weight design allow one hand operation.
• Condenser microphone for high accuracy & long-term stability.
• Low battery indicator.

Specifications:

• Display - 18mm LCD 3 1/2 digits.
• Functions - dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output.
• Measurement Range - 3 ranges, 30 to 130 dB, input signal only.
• Resolution - 0.1 dB.
• Operating Temp - 0 degree Celsius to 50 degree Celsius
• Operating Humidity - Less than 80% RH
• Power Supply - 006P DC 9V battery(heavy duty type).
• Power Consumption - Approx. DC 6mA.
• Dimension - 205 x 80 x 35 mm.
• Weight - 280 g(including battery).

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• Large LCD display, easy to read.
• Charateristic of " A " frequency weighting network are designed to meet IEC 61672 class 2.
• " Fast " time weighting characteristic mode
• Build in adj. VR is available for easy calibration.
• Condenser microphone for high accuracy & long term stabilty
• Hold function to freeze the display value.
• Warning indicator for over and under range.
• LCD display for low power consumption & clear read-out even in bright ambient light condition.
• Used the durable, long-astingcomponents,including a strong, light weight ABS-plastic housing case.
• Small and light weight design allow one hand operation.
• Low battery indicator.
• High quality with economical cost.

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• CB-2050 Range Sound Level Meter
• Switch Setting :60 DB-120DB
• Accuracy : ±4 dB @ 114 Db
• Standard :0 dB = 0.0002 µbar
• Weighting: A and C
• Response: Fast and Slow
• Load Impedance:10 kohm minimum
• Distortion:Less than 2% at 1 kHz,
• Microphone: Electret condenser omnidirectional becoming slightly directional with increase in frequency.

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• 10 mm (0.4”) LCD display
• DC output : 0~1.3V 10 mV/db
• Alarm output : LED optional relay
• 94 db in full calibration
• Battery indication present
• Auto manual shutdown
• ‘A’, ‘C’ or ‘Flat’ weighing with slow/fast response
• Backlit display

• Environmental Workstations
• Medical institutions
• Academic institutions
• Industrial Work stations
• Entertainment Establishments
• Aircraft maintenance hangars

• LP : Current Sound Pressure Level
• Leq : Equivalent continuous A sound pressure level (i.e. Arithmetically mean value in a period of time set)
• LN : Statistics analysis i.e. % of all measured values which is greater than or equal to the alarm value (Alarm set by user)

• Hard Carrying Case
• Wind Ball
• Screw Driver
• Manual

• HTC RS-232 Cable with software
• RS-232 USB Cable