The Extech VB450 is a convenient compact sized Vibration Meter that measures vibration levels in industrial machinery. Misalignment, poor balancing, structural compromises, and other factors can cause unwanted vibration increases. VB450 features a wide 10Hz to 1500Hz frequency range and provides Displacement, Velocity, and Acceleration measurement.

Extech VB450 Applications:

• To ensure proper installation/maintenance for consistent productivity and operator safety of:
• Motors, bearings
• Fans, Pumps, Rotating machinery
• Plant maintenance

Extech Features

• Remote vibration sensor with magnetic adapter on 7.9″ (0.2m) coiled cable
• Wide frequency range of 10Hz to 1500Hz
• Velocity (RMS), Acceleration (Peak), and Displacement (Peak-to-Peak) measurements
• Automatic data hold after measurement button is released
• Auto power off after 1 minute
• Low battery indicator

Specifications

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The 461880 Vibration functions have a frequency sensitivity that meets ISO-2954, and measure Acceleration, Velocity and Displacement. A 1000 point datalogger allows recording of data for download to a pc with included software. The Tachometer functions provide contact RPM and Linear Surface Speed, as well as non-contact RPM measurements.

Vibration meter and laser tachometer has a unique large LCD with characters on display that reverse direction depending on the mode; contact, photo or vibration. The included Windows ® 95/98/NT/2000/XP compatible software (included) allows captured readings to be downloaded to your PC for further analysis.
Features of the Extech 461880 Vibration Meter:

The Extech 461880 vibration meter features a remote vibration sensor with magnetic adapter on a 39″(1m) cable and has a wide frequency range of 10Hz to 1kHz. The meter has an RMS and Peak Value measurement modes and manual / auto store/recall up to 1000 readings. The data hold function freezes the reading in the display. The Extech 461880 vibration has an auto shut-off saves battery life.
Features of the Extech 461880 Laser Tachometer:

The Extech 461880 laser tachometer uses a laser for greater distance non-contact measurements up to 4.9ft (1.5m) and stores last, max, and min readings.

The combination Extech 461880 vibration meter and laser tachometer ships complete with remote vibration sensor, magnetic mount, wheels for linear surface speed or RPM (cone tip and flat tip), reflective tape, 4 AA batteries, software with cable, and hard carrying case.

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• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Selectable data sampling rate: 1 to 3600 second
• Manually datalog up to 99 readings
• Basic accuracy of ±(5% + 2 digits)
• RMS, Peak Value or Max Hold measurement modes
• Data Hold freezes the reading in the display
• Zero function
• Auto shut-off saves battery life
• Meets ISO2954

Basic settings at a glance

To view the current configuration of the meter with regard to time, date, and datalogging sampling rate press the SET button momentarily. The meter will now display the configuration in quick succession. If the information is missed on the first try, simply press the SET button again until all of the information is noted.

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Connect the BNC Cable into the BNC Vibration Meter’s Socket, and the Mini Cable Plug into the Vibration Sensor Socket. Choose the desired function from from: RMS, Peak, and Max Hold. RMS measures and Root Means Square (RMS) value. Max Hold measures and updates the max. peak value. Peak measures the peak vibration value. For Acceleration and Velocity measurement, always select RMS measurement. The selected function will be saved as the default.

Zero Adjustment
For zero adjustment operation is necessary that the Vibration Sensor to be connected to the Data Hold Vibration Meter via the Vibration Sensor Socket. Now you are able to select Acceleration measurement (m/s2, g, ft/s2). Keep the vibration sensor motionless. Be sure there is no signal being picked up. Press and hold the Logger Button for at least 5 seconds. The screen will display a zero value. The Zero Adjustment can be executed only when the measured value is less than 10 digits.

Max hold reset procedures
With your instrument into the Max Hold function, press and hold the Logger Button for at least 5 seconds to clear the existing Max hold value.

Data Hold
While taking any vibration measurement, press the Hold Button once and the measured value will hold on the screen, and a HOLD symbol will appear. Press the Hold Button once again will release the data hold function.

Data Record (Max., Min. reading)
The Reed Data Hold Vibration Meter (SD-8205) are able to record the maximum and minimum readings via Data record function. Press the REC Button once, and a ”REC. MAX.” symbol along with the maximum value will appear on the display. To delete the maximum value, press the Hold Button once and the display will show a “REC.” symbol only and execute the memory function continuously. Press the REC Button again, and a “REC. MIN.” symbol along with the minimum value will appear on the display. To delete the minimum value, press the Hold Button once, and the display will show a “REC.” symbol only and execute the memory function continuously.

Auto Datalogger (Set sampling time ≥1 second)
1) Start Datalogging; press the REC Button, and the “REC” symbol will appear on the SD-8205’s LCD screen, then press the Logger Button, the “REC” symbol will flash while the measuring data and time information is being saved in memory.To set the sampling time, and to toggle the beeper sound on or off, refer to the Advanced Settings section of this manual.
2) Pause the Datalogging; while Datalogging, if press the Logger Button once. While paused, the “REC” symbol will stop flashing. Press the Logger Button again to resume Datalogging, and the “REC” symbol will begin to flash again.
3) Stop Datalogging; while the Datalogger function is paused, press the REC Button for 2 seconds. The “REC” symbol will disappear indicating the Datalogging function has stopped.

Manual Datalogger (Set sampling time = 0 seconds)
1) Set sampling time is to 0 second; Press the REC Button, and the “REC” symbol will appear on the LCD screen. Press the Logger Button, and the “REC” symbol will flash once and one Beep will sound, at the same time the measuring data along the time information will be saved in memory. The lower Display will show the Position (record) number, which is saved as well.
2) To Change the Position Number; press the Down Button and the lower position number will flash on the display. Press the Up or Down Buttons to set the Position Number (1 to 99) to help identify the measurement location. The lower Display will show P x (x = 1 to 99). After the position number is selected, press the Enter Button to confirm.
3) Stop Datalogging; press the REC Button for 2 seconds, and the “REC” symbol will disappear indicating the Datalogging function has started.

REED SD-8205 Specifications

• Velocity
  Range: 0.5 to 199.9 mm/s; 0.05 to 19.99 cm/s; 0.02 to 7.87 in/s
  Resolution: 0.1 mm/s; 0.01 cm/s; 0.01 in/s
  Accuracy: ±(5% + 2 dgt)
• Acceleration
  Range: 0.5 to 199.9 m/s2; 0.05 to 20.39 g; 2 to 656ft/s2
  Resolution: 0.1m/s2, 0.01 g, 1 ft/s2
  Accuracy: ±(5% + 2 dgt)
• Circuit: Custom microprocessor LSI circuit
• Display: 52mm x 38mm LCD with backlight
• Frequency Range: 10Hz – 1KHz
• Auto Sampling Time: 1, 2, 5, 10, 30, 60, 120, 300, 600, 1800, 3600 seconds
• Memory Card: SD memory card, 1 GB to 16 GB
• Data Output: USB/RS232 PC computer interface
• Temperature Range: 0-50°C (0-122°F)
• Power Supply: 6 x 1.5V UM3/AA batteries
• Dimensions: Main instrument: 203 x 76 x 38mm; Probe: 37 x 16mm dia, Cable Length: 1.2m
• Weight: Main instrument: 515g; Probe: 99g

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