VM63A Vibration Meter Specifications I. Sensor Configuration Vibration Sensor: Shear-type piezoelectric ceramic accelerometer II. Measurement Range 1. Acceleration: 0.1–199.9 m/s² (peak) 2. Velocity: 0.1–199.9 mm/s (RMS) 3. Displacement: 0.001–1.999 mm (peak-to-peak); velocity and displacement ranges are limited by the 199.9 m/s² acceleration upper limit III. Measurement Accuracy ±5% ±2 counts IV. Frequency Range 1. Acceleration: Low Frequency (LO): 10 Hz–1 kHz, High Frequency (HI): 1 kHz–15 kHz 2. Velocity: 10 Hz to 1 kHz (LO) 3. Displacement: 10 Hz to 1 kHz (LO) V. Display Parameters Refresh Rate: 1 second Display: 3½-digit LCD VI. Signal Output Single-channel AC output: 2 V peak at full scale; load impedance ≥ 10 kΩ; external headphones supported VII. Electrical Parameters Power Supply: 9V alkaline battery Standby Current: ≤20 μA Operating Current: ≤25 mA Continuous Run Time: 20 hours Auto Shutdown: Automatically powers off after 60 seconds of inactivity Backlight Duration: 7 seconds Low Voltage Alarm Threshold: 6.9 V ± 0.2 V VIII. Environmental Parameters Operating Temperature: 0–40°C Operating Humidity: 30%–90% RH IX. Dimensions and Weight Dimensions: 67 × 30 × 183 mm Weight: 182 g (including battery) Additional Product Features 1. Features high- and low-frequency ranges to accommodate different vibration conditions; one-button switching between three measurement modes: acceleration, velocity, and displacement 2. Comes standard with two interchangeable probes (pointed and round) for measuring flat surfaces and narrow, hard-to-reach points 3. Features an LCD backlight, low-battery alert, and auto-shutdown; includes an AC data output port for connecting external devices to export data 4. High-sensitivity probe; compact and portable design