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MK-21 Vibrometer with Simple Diagnosis Function

Easy-to-use handy vibrometer with diagnosis function


Features three measurement modes: acceleration, velocity and displacement.
The required diagnosis functions are integrated into a compact unit.

Incorporates diagnosis functions compliant with ISO 10816-1 (JIS B 0906).
This unit automatically diagnoses the status of rotating machinery according to the vibration severity standard.

Ensures easy, on-site bearing diagnosis.
You can easily diagnose bearings according to the judgment criteria displayed on the back of the unit.

Incorporates a vibration pick-up with a magnet to ensure stable measure accuracy.
Achieves accurate measurement by eliminating error factors caused by hand holding.


Sensor Piezoelectric Vibration Pickup (with magnet)
Measuring mode Acceleration (ACC) 
Acceleration Peak (ACC PEAK)
Velocity (VEL)
Displacement (DISP)
Measuring range   L range H range<
Acceleration peak
0.0 to 20.0m/s2
0.0 to 20.0m/s2
0.0 to 20.0mm/s 
0 to 200μm
0 to 200m/s2
0 to 200m/s2
0 to 200mm/s 
0 to 1990μm 
Measuring frequency range Acceleration: 1 kHz to 20 kHz
Acceleration peak: 1 kHz to 20 kHz
Velocity: 10 Hz to 1 kHz
Displacement: 10 Hz to 1 kHz
Operation processing Acceleration : RMS value
Acceleration peak: PEAK value
Velocity: RMS value
Displacement: P-P value
Display method 4-1/2 character LCD display with back light
Low-battery display Mark displayed on LCD
Operating temperature range 0 to 50 °C (90%RH, no condensation
Storage temperature range -10 to 60 °C (90%RH, no condensation)
Power source One "AA" alkali dry cell, lasting 8 hours or more of continuous use
Size 69(W) x 154(H) x 30(D)
Weight Approx. 140 g (main unit only, including the dry cell)

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