Balanset-1A is a portable two-channel instrument for dynamic rotor balancing and vibration analysis. The kit includes two vibration sensors (accelerometers), a laser rotation sensor (optical tachometer), and a USB interface unit that connects to a laptop.

The core feature is in-situ balancing — balancing rotors directly at the operating site, in their own bearings, without dismantling equipment. This reduces downtime from days to hours: a typical procedure takes 40–90 minutes.

The software automatically calculates correction weight mass and angle for single-plane and two-plane balancing. The device also functions as a vibrometer: it measures RMS vibration velocity, generates FFT spectra, and displays phase — everything needed for primary vibration diagnostics.

The device was designed so that an engineer without vibration analysis specialization can operate it — the software guides you step by step. In practice, Balanset-1A is used by:

• Service engineers: providing on-site balancing services. The device pays for itself in 2–3 jobs at a typical service rate of €500–1,500
• Maintenance & repair teams: eliminating vibration on industrial equipment without calling a contractor
• Agricultural enterprises: balancing combine, mulcher, and shredder rotors right in the field
• Ventilation companies: on-site balancing of industrial fan impellers
• Heavy equipment operators: crushers, screens, centrifuges, and other rotating machinery

You will also need: a laptop running Windows, and correction weights (plates, bolts, or weld-on material — depends on your equipment).

Any laptop or PC running Windows 7 / 8 / 10 / 11 (32-bit and 64-bit). The only requirement is a free USB port — it handles both data transfer and device power.

The software interface is available in 26 languages: English, Български, Čeština, Dansk, Deutsch, Eesti, Español, Français, Indonesia, Italiano, Latviešu, Lietuvių, Magyar, Nederlands, Norsk, Polski, Português, Português (Brasil), Română, Русский, Slovenčina, Slovenščina, Suomi, Svenska, Türkçe, Українська. Select the language during installation or in program settings (F4).

Yes. Beyond balancing, the device operates in Vibrometer mode (F5) and displays:

• V1s, V2s — overall vibration level (RMS) in planes 1 and 2
• V1o, V2o — rotational vibration component (1× frequency)
• FFT Spectrum — vibration distribution by frequency for fault diagnostics
• Time Waveform — oscillogram of the vibration signal
• Run Down (Coast Down) — recording during rotor deceleration to identify resonances

Balanset-1A is universal and suitable for virtually any rotating rotor:

• Industrial fans and smoke exhausters — max RPM limited only by device specs (up to 100,000 RPM)
• Crushers (hammer, rotor, jaw) — heavy rotors, high initial imbalance
• Mulchers and shredders — often serviced in the field without shop access
• Augers and agricultural machinery rotors — combines, seeders
• Cardan shafts — for these, Balanset-4 with 4 channels is preferred
• Centrifuges and separators — high RPM, tight tolerances
• Turbines and compressors
• Grinding wheels and machine spindles
• Pumps and impellers
• Pulleys, flywheels, electric motors
• Propellers and air screws

Balanset-1A is the workhorse — covers 90% of tasks. Balanset-4 — for cardan shafts and multi-bearing rotors. Balanset-AR — standalone device with a built-in screen for working without a laptop, ideal for harsh field conditions.

Yes. If you have a stationary balancing stand with outdated electronics, mount Balanset sensors on its supports — you get a modern measuring system. The mechanical part (bed, drive, supports) stays the same; all signal processing and imbalance calculation moves to Balanset software. This is 5–10× cheaper than buying a new stand.

1. Insert the USB drive from the kit into your laptop
2. Run Bs1AvNNNSetup.exe — the installer sets up the program, database engine, and USB drivers
3. Connect the Balanset interface unit via USB — Windows recognizes the device automatically
4. Launch the program from the desktop shortcut

The entire process takes 3–5 minutes. No special knowledge required.

Vibration sensors connect to X1 and X2 on the interface unit. Mount them on fixed parts of the machine housing, as close as possible to the bearing supports. Attach using magnets (on a clean, flat surface) or M4 threaded studs (for maximum accuracy at high frequencies).

Laser tachometer connects to X3. Mount it on the magnetic stand, aim at the shaft from 50–500 mm away. Apply a strip of reflective tape (~1–2 cm wide) to the shaft. The laser beam must hit the tape mark directly.

Up to 80% of balancing success depends on preparation. Before starting, check:

• Rotor cleanliness: remove dirt, rust, adhered product — variable deposits create changing imbalance that weights cannot compensate
• Bearing condition: excessive play, unusual noise, overheating indicate a defect. Balancing does not replace repair
• Foundation rigidity: all anchor bolts tightened, mounts rigid, soft foot eliminated
• No rubbing: the rotor rotates freely without touching stationary parts
• Cracks: inspect the rotor, blades, and shaft for cracks. A crack changes stiffness and mass distribution, producing unstable vibration that makes balancing pointless. If suspected — perform non-destructive testing (NDT)
• Resonance: verify that the operating RPM does not coincide with a structural natural frequency. Check using Run Down — record vibration during rotor deceleration and look for amplitude peaks, or Bump Test on the stopped machine. If operating speed falls within a resonance zone, balancing results will be unstable or unpredictable
• 1× dominance: in Vibrometer mode (F5), confirm that the main peak is at the rotational frequency. If Vs ≫ Vo — the problem is not imbalance

The device uses the influence coefficient method (three runs):

1. Run #0 (Initial): start the rotor at operating speed. Press F7 → Run #0 to measure baseline vibration
2. Run #1 (Trial weight, plane 1): stop the rotor. Install a trial weight of known mass in plane 1. Start, measure. Stop, remove the trial weight
3. Run #2 (Trial weight, plane 2): same weight — in plane 2. Start, measure. Stop, remove
4. Calculation: the software computes mass (M1, M2) and angle (f1, f2) for correction weights in both planes
5. Install corrections: attach the calculated weights. Angle is measured from the trial weight location in the direction of rotation
6. Verification (RunTrim): run the rotor with correction weights installed, verify the result. If needed — the software calculates a trim correction

The trial weight must produce a noticeable and reliably measurable change in vibration. The criterion — the "30/30 rule":

• Vibration amplitude changes by at least 20–30%
• OR phase angle changes by at least 20–30°

If readings barely change after installing the trial weight — use a heavier one. The manual provides a calculation formula:

M_trial = (804 × M_rotor × V) / (R × N)

Where M_rotor = rotor mass (kg), V = vibration (mm/s), R = mounting radius (cm), N = RPM.

No. Balanset-1A is specifically designed for on-site balancing (in-situ) — all measurements are performed directly on installed equipment. This provides two key advantages:

• Time savings: dismantling–shipping–shop balancing–reinstallation takes days. In-situ takes hours
• Real conditions: bearings, fit tolerances, temperature, and load at the operating site differ from a shop stand. A rotor balanced perfectly on a stand may still vibrate after reinstallation

Influence coefficients are a digital "fingerprint" of how a specific rotor type responds to trial weight installation. After the first successful balancing, save them to the archive (F4 → Inf.Coeff button).

When balancing the same rotor type next time — load the coefficients from the archive ("Saved coeff." mode). The software calculates correction after one single run, skipping trial weight stages. This saves up to 50% of time per subsequent rotor.

Particularly valuable for serial balancing: if you have 20 identical fans — trial runs are only needed on the first one.

Results are saved to the archive automatically after each balancing. To generate a report:

1. Open the archive: F6 → Reports
2. Select the record (rotor, date)
3. Press F9 → Report — the built-in editor opens
4. Print or save the file

The report includes: initial and residual vibration, correction weight mass and angle, graphs. A ready-made document for your customer or internal records.

• Grinding wheel balancing: three-counterweight method — for machines where weights are installed on a flange
• Weight splitting (Split): automatically distributes mass between two adjacent positions — for fans with blades where weight cannot be placed at an arbitrary point
• Drilling calculation: hole diameter and depth for removing material instead of adding weight
• Index balancing: eliminates mandrel eccentricity for high-precision work (rotor is flipped 180°)
• Trim balancing: additional run for fine-tuning after the main correction

If amplitude or phase fluctuates between measurements (spread exceeding 10–15%), this is not a device defect. Typical causes:

• Foreign material inside rotor: water, dirt, loose product changes imbalance with each revolution. Solution: clean and dry the rotor
• Resonance: operating RPM coincides with the structural natural frequency. Solution: change speed by ±5–10% or stiffen the mounting
• Adjacent machine interference: vibration from nearby equipment overlaps your measurements. Solution: temporarily shut down neighbouring machines
• Mechanical defects: cracks, worn bearings, loose bolts cause non-linear vibration. Solution: repair the defect before balancing
• Rotor rubbing: check clearances between rotating and stationary parts

This is a common situation, usually caused by one of four procedural errors:

1. Trial weight not removed. If the "Leave trial weight" option was not checked, the software calculated the correction assuming the trial weight was removed. Verify — is it still on the rotor?
2. Angle measured in the wrong direction. The correction weight angle is measured from the trial weight location in the direction of rotation. Not from the reflective tape mark. Not against rotation
3. "Add" vs "Remove" confusion. If the settings show "Remove mass" but you added weight at that angle — you doubled the imbalance. Check the "Correction method" tab
4. Trial weight too light. If vibration changed less than 20% during the trial run, the calculation is inaccurate. Repeat with a heavier weight

If all four points above are excluded and vibration still increases — look for mechanical problems:

• Rotor or shaft cracks: change stiffness and mass distribution, making balancing unstable. Inspect the rotor; if suspected — perform NDT (non-destructive testing)
• Bearings: a defective bearing produces vibration at non-harmonic frequencies (not multiples of RPM). Check for play, noise, temperature
• Resonance: operating RPM may coincide with a structural natural frequency. Verify with a Run Down or Bump Test
• Foundation mounting: loose anchor bolts, soft foot, insufficient frame rigidity — all introduce non-linearity and prevent successful balancing
• Shaft misalignment: generates vibration at 2× and 3× RPM that correction weights cannot compensate

• Connection: the tachometer must be plugged into connector X3 (not X1 or X2)
• Distance: optimal range is 50–500 mm from the sensor to the mark. Adjust as needed
• Beam angle: the laser must hit the mark. A slight tilt (up to 45°) is acceptable and sometimes helps in bright ambient light
• Mark quality: reflective tape must be clean, contrasting against the shaft surface, ~1–2 cm wide
• LED indicator: when working correctly, the red LED on the sensor body flashes once per revolution. If it doesn't flash — there is no signal
• Sunlight: when working outdoors, shade the sensor from direct sunlight

• Structural resonance: operating frequency is close to the natural frequency of the support or foundation. Change RPM or stiffen the structure
• Defective bearings: worn rolling elements create vibration at non-characteristic frequencies. Replace before balancing
• Shaft misalignment: generates significant vibration at 2× RPM. Perform alignment before balancing
• Loose mounting: check and tighten all bolted connections, eliminate soft foot
• Rotor rubbing: ensure adequate clearances between rotating and stationary parts

Remember: balancing does not replace repair. If the device shows that the 1× component is not dominant, fix the mechanical fault first.

In Vibrometer mode (F5), open the FFT spectrum. Characteristic signs of misalignment:

• Beyond the main peak at rotational frequency (1×), you see significant peaks at 2× and 3× — the second and third harmonics
• If the 2× peak is comparable in height to 1× or exceeds it — this is a clear sign of parallel misalignment
• High axial vibration (more than 50% of the maximum radial) indicates angular misalignment

If these signs are present — perform alignment first, then balance. Balancing without correcting misalignment will not produce a stable result.

Any rotor-to-stator contact causes strong chaotic vibration and makes balancing impossible. Spectrum signs: sub-harmonic frequencies (0.5×, 0.33×) or multiple harmonics of rotational speed. Time waveform shows peak "clipping."

Action: shut down the machine. Inspect clearances between all rotating and stationary parts. Fix the root cause (misalignment, worn seals, thermal distortion, loose mounting). Only after eliminating contact should you proceed with balancing.

If the LED flashes but the software reports a tachometer error or RPM instability — three typical causes:

• Fluctuating RPM: the software monitors rotation uniformity. If the motor can't hold stable speed (load variation, belt slippage), phase measurements become unreliable. Solution: in settings (F4), increase the allowable "Irregularity" parameter
• False triggers: the laser picks up reflections from shiny rotor parts (polished surfaces, bolt heads) and registers extra pulses. Solution: change the sensor position or angle so the beam only "sees" your reflective mark
• Sensor displacement during measurement: vibration or an accidental touch shifted the stand. Solution: mount the tachometer rigidly and do not touch it until all measurements are complete

Order directly:

• Through our website: vibromera.eu and vibromera.com (Shop section)
• Through marketplaces: eBay and Amazon
• By request — contact us and we will issue an invoice manually

Payment methods: bank transfer (SWIFT), credit/debit card (Visa, MasterCard), PayPal.

After payment confirmation, we assemble and ship within 1–3 business days.

No. You pay once at purchase — that's it. Software is included, the license is lifetime: no time limits, no balancing count restrictions, no per-computer limits. Software updates are free.

We also offer optional paid premium support packages (WhatsApp consultations with an engineer, data analysis) — but these are optional, not mandatory.

Shipping from our warehouse in Porto, Portugal — within 1–3 business days after payment. Delivery via DHL — 3–7 business days depending on destination. For remote regions — up to 2–4 weeks including customs clearance.

After shipping, you receive a tracking number for real-time package monitoring.

Shipping from Porto, Portugal (European Union).

• Within the EU: generally no customs duties apply
• Outside the EU: customs duties, VAT, and brokerage fees may be charged according to your country's legislation. The buyer is responsible for these charges

We provide all necessary customs documentation with the shipment.

2-year warranty on all Balanset models (1A, 4, and AR). Covers manufacturing defects and electronic component failures under normal operation. If a defect is found during the warranty period — free repair or replacement.

The warranty does not cover: mechanical damage (drops, liquid spills), USB port burnout from voltage surges, and other damage caused by external factors.

Contact our support (email or WhatsApp). We will diagnose the issue — often the problem can be resolved remotely (software glitches). If physical repair is needed — ship the device to us, we repair or replace it free of charge and send it back at our expense.

Typical repair time: 1–2 weeks including shipping (faster within Europe).

Yes. We design our devices to be repairable: aluminum housing, metal connectors, replaceable components. After warranty — paid repair (cost agreed in advance).

Example: vibration sensor replacement costs approximately €100. Sensors and cables are available separately in our shop.

Returns accepted within 14 days of receipt:

• Full refund: device shows no signs of use, complete kit in original packaging
• Partial refund: minor signs of use may result in a 20–30% deduction
• Return shipping: paid by the buyer
• Return address: Rua Alcaide de Faria 193, Porto, Portugal, 4100-035

Contact our support for return instructions before shipping.

Balanset devices are built for harsh industrial conditions: aluminum housing, metal connectors, protective case. Electronic failures are extremely rare — every device is tested before shipping.

Most service requests are related to mechanical damage from carelessness: dropping the device, getting the sensor cable caught in rotating parts. Under normal use, Balanset operates for years without issues.

There are no fast-wear components in the design — accelerometers and the laser tachometer are rated for long-term operation.

Every buyer receives free basic support — contact us by email or phone with any question.

Also available:

• Video tutorials on YouTube — balancing examples for various mechanisms
• User manual included in the kit
• Premium support (subscription): direct WhatsApp chat with an engineer, data analysis, photo/video consultations in real time

No formal training required. Balanset's philosophy is "on-site balancing by any engineer, without specialized knowledge or excessive costs." The software guides the operator step by step: mount sensors → start the rotor → press the measurement button → follow instructions.

An engineer with minimal experience masters the device in 1–2 procedures. A general understanding of balancing principles and care in sensor installation are a plus, but not a prerequisite.

If questions arise — manual in the kit, video tutorials on YouTube, and WhatsApp support available.

• Email: [email protected] / [email protected]
• Phone / WhatsApp / Telegram: +372 5836 4849
• Phone (Portugal): +351 963 457 233

Estonia office (headquarters): Vibromera OÜ, Kiriku tn 13, 20308 Narva, Estonia

Portugal office (logistics & EU sales): Rua Alcaide de Faria 193, 4100-035 Porto, Portugal

For companies and specialists who need the highest level of service:

• Direct chat with an engineer in WhatsApp for real-time consultations
• Data analysis: send us your measurement files — our specialists will help interpret spectra and provide recommendations
• Photo and video consultations for solving problems directly on-site
• Priority request processing

These services are not mandatory — they are for those who need an elevated level of support.

No. The Balanset-1A interface unit is powered directly from the laptop USB port — no additional outlet needed. This makes the device fully mobile: laptop on battery + Balanset = autonomous operation anywhere.

The standard Balanset-1A kit contains everything needed for measurements and calculations. You only need two additional items:

• Laptop or PC running Windows (any model with a USB port)
• Correction weights — plates, bolts, washers, or weld-on material (depends on your equipment and attachment method)