Analog Sound Level Meter NIST - Maxtech Inst

1 1141 Davis Inotek LevelSDigital Sound Level MeterCatalog No. Model DescriptionPriceEH407768407768 Digital Sound Level Meter $ Sound Level Calibrator, Sound Level Calibrator, 94 NIST Traceable Certificate with and IEC Type 2 with RS-232 PC InterfaceNISTitAnalog Sound Level MeterCatalog No. Model DescriptionPriceEH119703407703A Analog Sound Level Meter $ NIST Traceable Certificate with Noise levels Economically Tripod mount and 9V battery powered, ideal for field use Analog output for connection to chart recorders, dataloggers, etc. Selectable weighting ( A or C ) and response time (Fast or Slow) MAX HOLD front-panel select switch locks highest reading on the display Complete with 9V battery Two-color, bright Analog display with battery check Measurement range from 54 to 126 dB in 7 ranges Built-in " Electret MicrophoneApplications Identify noise ordinance violations Traffic noise measurements Community noise measurements Theater acoustic studies Stereo balancingNISTitSPECIFICATIONSR ange 54 to 126 dB Accuracy 2dB @ 94dB, 1000Hz Weighting A and C (Selectable) Response time FAST and SLOW (Selectable) Microphone " Electret Condenser type Analog output AC.

2 Power Supply 9V Battery Dimensions x x " (68 x 180 x 36mm) Weight oz. (160g) Auto/Manual ranging from 30 to 130dB in three 50dB ranges Meets ANSI and IEC Type 2 standards A and C selectable frequency weightings Fast and Slow selectable response times Large digital display with resolution Condenser microphone provides precision and stability Min/Max and Peak Hold AC output for recorders RS-232 interface for capturing data directly on a PC Complete with batteries, Windows compatible software and caseSPECIFICATIONSD igital Display 5 digit Autorange LCDM easurement Range30 to 130dB Resolution dB @ 94dB for a 1kHz sine wave Microphone 1/2" Electret Condensor Frequency Weighting A and C type Time Response Slow/Fast Measurement Frequency Range to 8 KHz Analog Output AC: (full scale)Applicable Standards IEC 651 Type 2, ANSI Type 2 Power Supply 9V battery x x " / (285g) Davis Inotek Level1142 Sound Level Calibrators407744407766 Auto/Manual ranging from 30 to130dB in 6 ranges Meets ANSI and IEC Type 2 stds.

3 A and C frequency weightings Background noise absorber modefor machine noise measurementsfilters ambient noise Stores Max and Min levels Max Hold latches maximum valueon display RS-232 interface for capturing datadirectly on a PC, optional Windows software Complete with batteries and caseSPECIFICATIONSD igital Display3- 1 2 digit (1999 count) Autorange LCDB argraph Display50dB display range (1dB resolution)Measurement Range30 to 130dB (35 to 130dB for C weighting) dB @ 94dB for a 1kHz sine waveMicrophoneElectret Condensor .24" (6 mm dia.) typeSampling timeupdates every secondsAnalog outputAC: Vrms (full scale); DC: 10mVDC/dBPower Supply9V battery, optional AC adapterDimensions10 x x " (256 x 80 x 38 mm) oz.

4 (240 g)Digital Sound Level MeterCatalog Sound Level Meter $ Software and AC AC NIST Traceable Certificate with 1000 Hz 5% Sound Pressure Level 94 dB (407744); 94dB/114dB (407766) (94dB), 1dB(114dB) Distortion <2% Total Harmonic Distortion (THD) Operating Temperature 32 to 122 F (0 to 50 C) Power Supply Two Heavy duty, alkaline 9V Battery Power consumption Approx. 10mA DC Dimensions " diameter x " long (50 x 127mm) Weight lbs. (340g) Catalog Level Calibrator, 94dB$ Level Calibrator, 94 NIST Traceable Certificate with or combination 94dB/114dB, 1kHz Professional Calibrator for or Microphones Calibrates and verifies Sound Level Meter operation For use on Sound Level meters with " or " microphones Durable die-cast, aluminum housing 1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency)and 3 position switch (OFF/94dB/114dB) Total Harmonic Distortion (THD)

5 <2% at 94dB Complete with two 9V batteries, carrying case, and screwdriverModel 407744 Battery test position with battery status LED indicates if battery is goodModel 407766 LED indicator lights up when power is on Level position to select 94dB or 114dB1143 Davis Inotek levels 4 Digit LCD with Analog bargraph Display modes: SPL, SEL, MAX-L/MIN-L, and Leq A and C Frequency weighting Impulse/Fast/Slow response settings Datalogging function records up to32,000 records Real time calendar/clock Built-in RS-232 interface with includ-ed Windows logging software Tripod mount Complete with wind shield, adjust-ment screwdriver, interface cableand connector, Windows basedsoftware, battery, and caseSPECIFICATIONSA ccuracy (ref 94dB @ 1 KHz) Display4 digital LCDM easurement Range30dB to 130dBLinearity Range100dBMeasurement Frequency to 8 KHzMicrophone1 2" Electret condenser microphoneAnalog AC/DC Output2 Vrms (at full scale), 10 x x " (265 x 72 x 21 mm) oz (310 g)

6 Integrating Sound Level MeterCatalog No. ModelDescriptionPriceEH407780407780 Sound Level Meter $1, dB Calibrator for " or 1" recorder cable 3' for AC/DC 115 VAC 220 VAC NIST Traceable Certificate with Based Data Acquisition SoftwareWindows Based Data Acquisition SoftwareSound Level DataloggerBuilt-in Recorder Stores up to 16000 Readings with RS-232 interface andSoftware to Transfer Data to a PC Accuracy to Large LCD display with function indication, time/date stamp and fast 50 segment bar graph display Datalogging function with user selectable sampling time sequences from to32767 secs. Stored data can be easily transferred to a PC via RS-232 interface and analyzed using software & cable provided A & C frequency weighting Fast and Slow time weighting dB resolution Max Hold function Meets ANSI Type 2 and IEC 651 standards Detachable " ( ) diameter condenser microphone Analog AC/DC recorder output 10mVDC/decibel Automatic built-in calibration check (94dB)

7 Complete with microphone wind cover, PC software on " diskette, Serialcable, 9V battery and carrying caseCatalog Level Meter Datalogger$ Calibrator for ' or 1" recorder cable 3' for AC/DC AC 6' Microphone extension NIST Traceable Certificate with Inotek Level1144 Real Time Octave Band AnalyzerCatalog DescriptionPriceEH407790407790 Octave Band Sound Analyzer$ NIST Traceable Certificate with 2 integrating Sound Level Meter with Octave and 1/3 Octave Band Real Time displaySPECIFICATIONSA pplicable standardsIEC 60651 Type 2, IEC 60804 Type 2, IEC 1260-1995, ANSI Type 2 Microphone1/2-inch Electret condenser microphoneAccuracy (ref 94dB @ 1kHz)Measurement range30dB to 130dBMeasurement functionLp , Leq , LE , Lmax , LminFrequency range25Hz ~ 10kHzSound Level Meter displayNumerical : 4 digits, up data cycle , resolution graph : Scale range 100dB , update cycle , resolution time clock : Year, Month, Day, Hour, Minute, Second1/1- 1/3 Analyzer Level range70dB1/1 Octave and 1/3 Octave 1/1 Octave band center frequencies : (9 bands): , 63Hz, 125Hz, 250Hz, band filters500Hz, 1kHz, 2kHz, 4kHz, and Octave band center frequencies : (27 bands).

8 25Hz, , 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1kHz, , , 2kHz, , , 4kHz, 5kHz, , 8kHz 10kHzSignal outputAC output : 2 Vrms (at full scale): DC output : 10mVDC / dBPowerFour type C size batteries, External DC power: 6V, 1 ABattery lifeApprox. 2hrs Dimensions & " ( cm); (950g) Wide 100dB range of 30 to 130dB 160 x160 dot matrix backlit LCD displays Leq, LE, Lmax, Lmin and Lp Built-in memory stores up to 12,280 records in SLM mode and 1024data points in 1/1 or 1/3 octave mode Stored data can be easily transferred to a PC via RS-232 interface andanalyzed using software & cable provided A, C and Flat weighting with Fast or Slow response 25Hz to 10kHz frequency response Meets ANSI and IEC Type 2 standards Internal self test when powered ON Detachable "( )

9 Diameter condenser microphone and Tripodmount provided on rear Analog AC/DC recorder output Real time clock with Year, Month, Day, Hour, Minute and Second display Optional microphone extension cable for measurements in enclosuresand other remote locations (407764-EXT) Complete with microphone wind cover, PC software on CD, Serial cable,four type C size batteries, adjustment screwdriver, 120 VAC adaptor andcarrying caseApplications: Real time analysis of noise from any source such as machinery or vehicles Monitor office or plant noise and store data for later reference and analysis Maintain noise Level statistics for internal and external audits Perform machinery noise monitoring or use for noise reduction programsNISTit1145 Davis Inotek LevelSCatalog No.

10 Model DescriptionPriceIT8924 DSM8922 Digital Sound Meter with Backlight$ RS-232 Transfer Windows RS232 Interface NIST Traceable Certificate with Level ranges30 to 80dB, 40 to 90 dB, 50 to 100 dB, 60 to 110 dB, 70 to 120 dB, 80 to 130 dBAuto range30 to 130 dB (35 to 139 for C weighting)Accuracy display3-1/2 digit LCD with backlightAnalog outputAC: Vrms (full scale); DC: 10 mV/dBMeasurement frequency range to 8kHzPower source1 9V batteryDimensions10" x " x " (256 x 80 x 38 mm) Monitor the Sound levels from traffic noise, alarm systems andworkplace machinery Quasi- Analog bar indicator: 1 dB display steps, 50 dB display range,updated every 50 ms Measurement Level range features 6 ranges Multi-frequency calibration to ensure stability Fast (125 msec.)