Leonova Emerald

Leonova Emerald® is a straightforward and efficient portable instrument for condition measurement in rough industrial surroundings. It is the perfect wear and tear choice for powerful analysis and troubleshooting in machine condition monitoring.

Lexical definition: em·er·ald \’em(ə)rəld\. Member of the beryl family of minerals and the most famous and valuable green gemstone. The name Leonova Emerald is inspired by the gem’s reputation as the stone of foresight and prediction.

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A rugged and versatile instrument for routine measurements and troubleshooting tasks, Leonova Emerald has the capacity to optimize the efficiency of your condition monitoring program.
Low speed/RPM


Measurements are more precise and spectrums more detailed than ever before, making in-depth bearing and vibration analysis possible even on the most complex industrial applications.
Parallel measurements


Multiple measuring assignments can be carried out with the push of a single button. Immediate condition evaluation, alarm generation, historical data, and trends – all delivered right on the screen.



Providing reliable and actionable information on the condition of critical machinery, Leonova Emerald enables optimal coordination of maintenance and repairs. Packed with cutting-edge technology and with a rugged design, Leonova Emerald provides many years of reliable service under the toughest, most demanding circumstances. Designed for use in hazardous areas and hostile environments, Leonova Emerald is also available in an intrinsically safe version.

Leonova Emerald offers highly sophisticated vibration and shock pulse measurement with the patented HD technologies, providing razor-sharp spectrums even where signals are weak and low in energy content. The instrument’s excellent signal-to-noise ratio gives a decisive advantage where weak signals are present among stronger signals, such as in gearboxes.

Leonova Emerald is part of the Leonova line of portable instruments and sibling to Leonova Diamond®.


“SPM is an extremely professional company that was able to meet our needs. A visit from an SPM representative to our site allowed us to really understand the products and capabilities we required for an upgrade. We had also taken the option to have some of our staff trained in on our chosen device, which has already had a positive outcome to all involved in the capturing of data. Lastly, the product was ordered and received with minimal effort. For sure, SPM are our go-to people.”

Chris Giles, Doppelmayr Cable Car (Using Leonova Emerald)


One of the most advanced ATEX/IECEx-certified instruments on the market, Leonova Emerald IS provides sophisticated technologies and usability in a single measuring device. The instrument is built to withstand harsh environmental conditions.

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Leonova Emerald includes High Definition Shock Pulse Method (SPM HD®) for bearing condition and advanced vibration analysis for general machine condition and more features, see below. 

Bearing and lubrication condition

Note: Also read about HD ENV® (below) for bearing monitoring.

The SPM HD® Method (HDm/HDc)

The SPM HD® method is a patented further development of the Shock Pulse Method (SPM) in being less sensitive to interference from other signals and therefore unique in its ability to measure from very low rpm (0.1 - 20.000 RPM range). SPM HD is used for fast, easy, and reliable diagnosis of the operation condition of rolling element bearings.

SPM Spectrum™

SPM Spectrum™ is based on extraordinary signal quality and 24 bit A/D conversion that provides razor-sharp resolution and helps determine where a possible bearing damage is located with very high precision.


The LR/HR method was developed from the original Shock Pulse Method for condition diagnosis of rolling element bearings and allows a precision analysis of oil film condition in the rolling interface.


The original Shock Pulse Method is based on dBm/dBc that counts the rate of incoming shock pulses per second and provides one value for the shock carpet level and one value for the maximum level (peaks).

Vibration Analysis

The HD ENV® technique

HD ENV® is a patented enveloping technique used for early detection of impact-related events such as gear and bearing damage. A number of predefined filters are available for easy selection; each designed to detect damages in different failure stages. The method utilizes cleverly engineered algorithms for digital signal processing to obtain optimal data for trending purposes.

Vibration Severity plus FFT Spectrum

Measurement of vibration velocity, acceleration, and displacement (0-20kHz frequency range) according to the latest ISO 10816 standards helps to diagnose general machine condition. In addition to the RMS vibration readings, the instrument displays an FFT spectrum, where symptoms of imbalance, misalignment, and structural weakness are easily identified.


The EVAM (Evaluated Vibration Analysis Method) measuring technique produces up to 12800 line spectrum with true zoom, provides ready-made machine 'fault symptoms' as well as trending.

Corrective Maintenance 

Dynamic balancing

Field rotor balancing in single plane according to ISO 1940-1 standard with an initial vibration measurement guiding the user through a balancing procedure with suggestions for correcting the imbalance.

Order Tracking 

HD Order Tracking

On machinery operating under variable speed, analysis with HD Order Tracking provides reliable data and crystal clear measuring results even when RPM varies greatly during the course of measurement. Order tracking is applicable in a very wide RPM range, from just a few to thousands of revolutions per minute.

Technical overview


Dimensions: 306x108x71 mm
Weight: 860 g
Display: TFT colour, 240x320 pixels, 3.5 inch, adjustable backlight

Instrument modules

Platform functions

  • SPM HDm/HDc and/or SPM LR/HR.
  • RMS vibration, ISO 2372.
  • Speed measurement.
  • Temperature measurement.
  • Stethoscope function.
  • Measuring point identification with CondID® memory tags.
  • Recording.
  • Manual recording, free quantity.
  • Checkpoints, free text.
  • Recording of vocal comments.
  • Supports up to 6400 lines, 10 kHz.

Optional functions

  • SPM HD Expert, frequency, and domain analysis.
  • Shock pulse method dBm/dBc.
  • Shock pulse method HDm/HDc.
  • Shock pulse method LR/HR.
  • SPM Spectrum.
  • Vibration ISO 10816 with spectrum.
  • Vibration Premium.
        HD ENV.
        FFT with symptoms.
        6400 lines, 10 kHz.
        HD Order Tracking.
        Time signal.
        Post trigger.
  • Vibration Supreme.
        HD ENV.
        EVAM evaluated vibration analysis.
        12 800 lines, 20 kHz.
        + all functions in Vibration Premium.
  • HD Analysis.
        Vibration Supreme.
        SPM HD Expert.
  • Balancing, single plane.

Accessories and packages


With price cuts up to 36% off unbundled prices in this special offer, there has never been a better time to upgrade to this heavy-duty, high-performance instrument. Leonova Emerald® is the perfect wear-and-tear choice for powerful analysis and troubleshooting, while also providing smart, superior-quality data to your IoT and Big Data systems.

This user-friendly data collector enables high-efficiency measuring routes with instant condition evaluation in green-yellow-red. Packages include the comprehensive software Condmaster Ruby® for further analysis of measurement data.


Leonova Emerald handheld instrument.
Communication cable.
Tacho/temperature probe.
Vibration transducer.
Magnet foot.
Measuring cable.
Carrying case, soft.
Analysis and diagnostic software.
Condmaster Ruby.
Measuring techniques: VIB ISO 10816 + Spectrum.


Leonova Emerald handheld instrument.
Communication cable.
Shock pulse and tacho/temperature probe.
Vibration transducer.
Magnet foot.
Measuring cable.
Quick connector, DuoTech.
Carrying case, hard.
Analysis and diagnostic software.
Condmaster Ruby.
Measuring techniques: VIB ISO 10816 + Spectrum, Vibration Supreme.


Leonova Emerald handheld instrument.
Balancing equipment.
Communication cable.
Shock pulse and tacho/temperature probe.
Vibration transducer.
Magnet foot.
Measuring cables.
Quick connector, DuoTech.
Carrying case, hard.
Headset with microphone.
Analysis and diagnostic software. 
Condmaster Ruby.
Measuring techniques: VIB ISO 10816 + Spectrum, complete analysis functionality with HD Analysis and VIB/SPM HD Expert, Balancing.