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Detachable Probe

Sound Meter

840012

Instruction Manual

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Summary of Contents for 840012

Page 1: ...Detachable Probe Sound Meter 840012 Instruction Manual ...

Page 2: ...easuring Procedures 4 3 B Hold 4 3 C Rec Max Min 4 5 3 D Max Hold 5 3 E Signal Output 5 3 F Calibration 5 3 G Precautions 5 3 H Auto Shut Off 6 3 I Battery Replacement 6 3 J RS232 PC Serial Interface 6 4 Specifications 7 5 Frequency Weighting A and C Characteristics 8 6 Warranty 8 ...

Page 3: ...h Manual and Auto ranging scales with 0 1 dB resolution and an accuracy of 1 5 dB Calibrate in compliance with OSHA using Acoustical Calibrator 840031 or equivalent Has a fold out easel back and a tripod screw 2 METER DESCRIPTION 1 Microphone 2 Probe Holder 3 Probe Handle 4 BNC Plug 5 BNC Socket 6 LCD display 7 Power Button 8 Hold Button 9 Rec Max Min 10 Max Hold Button 11 A C Button 12 Fast Slow ...

Page 4: ...nge setting default or find the appropriate range using the RANGE 13 button The manual selections are 30 to 80dB 50 to 100db or 80 to 130db If is displayed switch to another range The sound level is displayed in decibels dB For general applications press the FAST SLOW 12 button to select Fast simulating the human ear s response time The Slow setting is generally used to obtain an average of vibrat...

Page 5: ...ut device such as an analyzer recorder or controller 3 F CALIBRATION The meter s CAL 15 adjustment is located on the side of the unit Use Sper Scientific s 2 Pt Acoustical Calibrator 850016 or equivalent to calibrate the unit in compliance with OSHA Press the POWER 7 button to turn the unit on Turn the acoustical calibrator on and place it onto the meter s MICROPHONE 1 To calibrate the meter to 94...

Page 6: ...al output is a 16 digit data stream that can be adapted to user defined applications A RS232 lead with the following connection is required to link the instrument with the PC serial interface The 16 digit data stream will be displayed in the following format D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0 Each digit indicates the following status D0 End word D1 D8 Display reading D1 LSD D8 MSD Example Disp...

Page 7: ...ut Signal AC output AC 0 5 Vrms corresponding to each range step Output impedance 600 ohm Slow S t 500 ms Output Terminals RS232 AC 3 5mm diameter jack Operating Temp 32 to 122 F 0 to 50 C Operating Humidity Less than 80 RH Power Supply One 9V battery heavy duty or alkaline type Power Consumption Approximately DC 6 mA Weight Weight 8 oz 225 g with battery Dimension Meter 10 6 x 2 7 x 1 1 268 x 68 ...

Page 8: ... to expose its electronics will break the waterproof seal and void the warranty To obtain warranty service ship the unit postage prepaid to SPER SCIENTIFIC LTD 8281 E Evans Rd Suite 103 Scottsdale AZ 85260 480 948 4448 The defective unit must be accompanied by a description of the problem and your return address Register your product online at www sperwarranty com within 10 days of purchase Revise...

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