Live telemetry
Real-time vibration.
Tach
Baseline —
RPM 1× tach
8042
Phase 127.4°
Period 7.46 ms
Δ ±3
RMS vibration
0.342g
Peak 1.23 g
Crest 3.6
Temp 31.2 °C
Per-axis amplitude
Dominant — highlighted
X axis
0.0342g
Y axis (dominant)
0.0851g
Z axis
0.9983g
Time-domain waveform — 3 axis
X
Y
Z
RMS trend — last 120 s
Baseline 0.024 g
Frequency spectrum — preview
Frequency domain
Spectrum & waterfall.
Top — amplitude at each frequency (512-point FFT, 0–2,500 Hz). Peak at 1× RPM means imbalance; peaks at 2×/3× mean misalignment or looseness; broadband noise above 500 Hz usually means bearing wear. Bottom — history over time (newest at top). Watch for peaks drifting or growing — those are the early warning.
Magnitude — linear
1× RPM 134.0 Hz
Peak 134.0 Hz
Amp 0.350 g
Waterfall — last 60 s
Time ↓ · Frequency →
Single-plane balance
Stop guessing. Start measuring.
Mount the sensor so the axis arrow points radially — straight at or away from the spindle centerline. Not skewed, not axial. Mark a reference line on the spindle with a sharpie for the tach pickup. The device computes correction weight and angle using the influence coefficient method.
1
Initial
2
Trial weight
3
Correction
4
Verify
Step 1 — Initial run
Measure baselineBring the spindle to target RPM. Hold it steady. Tap Measure — the device records 16 revolutions and extracts the 1× component.
Current RPM
8042
Live vibration
0.342g
How it works
- 01Stick the magnetic sensor on the spindle housing. Apply reflective tape to the spindle.
- 02Measure initial vibration — amplitude A₀ and phase φ₀ at 1× RPM.
- 03Attach a known trial weight. Measure again.
- 04Device computes correction weight and angle. Place it. Verify.
Step 2 — Trial weight run
Place + measureDrag the weight marker on the polar plot to where you placed the trial weight, or type exact values below. Start the spindle at the same RPM, then measure.
Current RPM
—
Vibration
—g
Trial position
VIEW 0°Drag to mark
Grab the rim to rotate · Drag inside to mark · 1.0 g @ 0°
Correction weight
2.34g
Remove if heavy spot · Add if light spot
Correction angle
147.2°
Measured CCW from tach trigger
Correction vector
1× RPM · live phase
Grab the rim to rotate the view
Predicted outcome
Residual
0.012g
Estimated quality
Good
Predicted Low residual
Estimate only — not a calibrated ISO 1940-1 measurement. Verify with traceable equipment for certification.
Place the correction weight at the indicated position. Re-run the spindle, then tap Verify to confirm and refine.
Step 4 — Verify correction
Measure residualEnter the weight and angle you actually placed — the device refines the influence coefficient and suggests further adjustment if needed.
Residual (live)
0.018g
Improvement
94%
Continuous record
Log & history.
Samples
248/ 2880
Baseline RMS
0.024g
Interval
30s
Uptime
02:14
RMS history — last 24 h
Alert at +50% baselineLast balance report
| RPM | 8,042 |
| Initial vibration | 0.342 g |
| Correction weight | 2.34 g |
| Correction angle | 147.2° |
| Residual | 0.018 g |
| Estimated quality | Good — not certified |
Device configuration
Settings.
Network
Device
Tachometer
Live ADC
2847
Comparator
FALSE
updated automatically by calibration
Last calibrated
Never
High—
Low—
Threshold—
Logging
seconds between RMS snapshots
samples — oldest dropped once full
Total record window
24 h 00 m
Notifications
percent above baseline
minutes — throttle repeat alerts
Firmware
Versionv0.4.2
TargetESP32-WROOM-32-N4
Free heap184 KB
Uptime2 h 14 m
Unlock experimental features or licensed modes
Caution · firmware flashing
- Do not power off the device during upload or the subsequent reboot. A mid‑flash power cut will brick the unit.
- Only flash official GrayVolt firmware signed with the GrayVolt release key. Third‑party or modified binaries can permanently disable the device and will void your warranty.
- Verify the target matches this device (ESP32‑WROOM‑32‑N4). Flashing a binary built for a different target will fail to boot.
Danger zone
Reset all settings, clear NVS, or return the device to factory defaults. Cannot be undone.