Extech VB500 4-CHANNEL VIBRATION METER / DATALOGGER
Features Large backlit LCD display simultaneously displays four channels Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds Remote vibration sensor with magnetic a dapter on 39"(1m) cable Wide frequency range of 10Hz to 1kHz Basic accuracy of ±(5% + 2 digits) RMS or Peak Value measurement modes Data Hold, Auto Power Off Complete with 4 remote sensors, magnetic mounts, 8 x AA batteries, 100-240V Universal AC Adaptor, SD card, and durable hard carrying case Spec Sheets Extech VB500 4-Channel Vibration Meter/Datalogger Data Sheet 4-Channel Vibration Meter / Datalogger The Extech VB500 can display four (4) channels of simultaneous vibration measurements taken from remote vibration sensors. This meter displays and stores vibration readings of Acceleration, Velocity and Displacement. Supported measurement units are meters/s2, ft/s2, g, mm/s, cm/s, in/s, mm and inch. Logged data readings are stored on an SD card for transfer to a PC. Application: Motors, bearings Fans Pumps Rotating machinery Plant maintenance Meter Description BNC adaptors Vibration pickup input jacks Side compartment (detailed below) Sensors Magnetic mount SET and Clock key MAX-MIN key ENTER and LOG key ? / Function key / Max. Reset / Zero ? / ACC-VEL-DISP key Power ON-OFF key HOLD and Backlight key Backlit LCD (Detailed below) Display Description Battery status HOLD mode icon Record MIN MAX Mode active MAX display MIN display Peak Hold mode Data Hold mode RMS measurement Channel 1 reading Channel 2 reading Date and Time Channel 3 reading Channel 4 reading Datalogging active Units of measure and function icons detailed below: ACC ‘Acceleration’ measurement mode VEL ‘Velocity’ measurement mode DISP ‘Displacement’ measurement mode m/s2 Meters per second squared mm/s Millimeters per second ft/s2 Feet per second squared g G-force inch/s Inches per second cm/s Centimeters per second mm Millimeters inch Inches P-P Peak-to-Peak Side Compartment Description SD Memory Card slot 9V Power Adaptor jack RESET button Audio output jack Getting StartedPower ON-OFF Power the meter by pressing and holding the power button for 3 seconds. Press and hold the power button for at least 3 seconds to power OFF the meter. This meter is powered by eight (8) 1.5V ‘AA’ batteries or by AC adaptor. If the meter will not switch ON please check that fresh batteries are installed in the rear battery compartment or, in the case of the AC adaptor, check that the adaptor is connected correctly to the meter and to an AC source. Display Backlight To turn the display backlight ON or OFF, press and hold the backlight button for 3 seconds. The meter will beep when switching the backlight ON or OFF unless the beeper is disabled.Vibration Sensor Connect a vibration pickup to the cable supplied. Make sure it is firmly attached. Connect the cable to the meter by attaching it to a connector at the top of the meter. If the surface to be tested is magnetic, attach the magnetic base to the vibration pickup and attach the pickup to a flat surface. If the surface to be tested is not magnetic, hold the pickup against the surface. Do not hold the cable while making measurements. Units of MeasureThe currently selected unit of measure is shown on the meter’s LCD. To change the unit of measure, press and hold the ACC/VEL/DISP (up arrow) button until the desired unit of measure appears and then release the button. The meter begins scrolling through the available units of measure after the button has been depressed for 3 seconds. The saved units will become the default power-on unit of measure. Specifications Electrical Specifications Function Unit Range and Resolution Accuracy Acceleration m/s2 0 .5 to 199.9 m/s2 ± ( 5%rdg + 2 d )@ 80 and 160Hz g 0.05 to 20.39 G ft/s2 2 to 656 ft/s2 Calibration Point: 50 m/S^2 ( 160 Hz ) Velocity mm/s 0.5 to 199.9 mm/s ± ( 5%rdg + 2 d )@ 80 and 160Hz cm/s 0.05 to 19.99 cm/s inch/s 0.02 to 7.87 inch/s Calibration Point: 50 mm/s ( 160 Hz ) Displacement mm 1.999 mm ± ( 5%rdg + 2 d )@ 80 and 160Hz inch 0.078 inch Calibration Point : 0.141 mm ( 160 Hz ) Above specification tests under the environment RF Field Strength less than 3 V/M & frequency less than 30 MHz only and 23°C ±0.5°C General Specifications Model Extech VB500 Acceleration 656ft/s2, 200m/s2, 20.39g (peak) Velocity 7.87in/s, 200mm/s, 19.99cm/s (peak) Displacement 0.078in, 2mm (peak-to-peak) Resolution 1ft/s2, 0.1m/s2, 0.01g; 0.01in/s, 0.1mm/s, 0.01cm/s; 0.001in, 0.001mm Basic accuracy ±(5%+2 digits) Memory 20M data records using 2G SD card Display 82 x 61mm (”) Backlit LCD Display update rate 1 second (approx.) Number of channels Four (4) input channels (CH1, CH2, CH3, CH4) Measurement Types Velocity, Acceleration, and DisplacementAcceleration/Velocity: RMS, Peak, and MAX HOLDDisplacement: p-p (peak to peak), MAX HOLD Units of measure Acceleration: m/s2, g, ft/s2Velocity: mm/s, cm/s, inches/sDisplacement: mm, inches Frequency range 10Hz to 1KHz (sensitivity in this range meets ISO2954) Peak Hold Acceleration, Velocity: Measures and updates peak valueDisplacement: Measures/updates the p-p (peak-to-peak) value Max. Hold Acceleration, Velocity: Measures and updates Max. peak valueDisplacement: Measures/updates Max. p-p (peak-to-peak) value Max. Hold Reset Push-button activation Zero function Push-button activation for Acceleration (RMS) measurements Datalogger sampling rate Automatic: 1 second to 3600 secondsManual: Push-button stores reading Datalogger accuracy ≤ 0.1% error of total saved data (typical) Memory card SD memory card (1G to 16G sizes) Data Hold Freezes displayed reading Audio Output mini stereo phone jack, Max voltage; 2V, output impedance; 100ohms Operating Temperature 0 to 50°C (32 to 122°F) Operating Humidity 85% R.H. max. Power Supply Eight (8) 1.5V ‘AA’ batteries or 9V AC adaptor Power Consumption Normal operation (backlight and datalogger OFF): approx. 12mAdcWith backlight OFF and datalogging ON: approx. 35mAdc Weight Meter: 515g (1.13 lbs.)Probe with cable and magnetic base: 99g (0.22lbs.) Dimensions Main instrument: 203 x 76 x 38mm (8 x 3 x 1.5””)Probe: 16 x 37mm (0.63 x 1.45”) diameterCable length: 1.2m (3.94ft)