Motor Monitoring Methods Compared: Artesis vs. the Competition

Why the choice of method decides everything

A mid-sized industrial plant runs hundreds of electric motors: pumps, fans, compressors, conveyors, crushers, mills. The failure of one critical motor means anywhere from a few hours to several days of downtime and tens of thousands of dollars in direct losses. The question isn't whether motor diagnostics are needed — it's which method can cover the entire fleet so defects are caught early, not after the fact.

The market offers several fundamentally different approaches. Below is an honest breakdown of each, followed by a ranking of why, for most plants, sensorless electrical signature analysis (ESA) from Artesis delivers the best balance of coverage, accuracy and cost of ownership.

Approaches to motor diagnostics

1. Classic vibration analysis (sensors on the machine)

Accelerometers on the housing, a portable analyzer, or a permanently installed system.

• Pros: a mature method with a detailed picture of mechanical condition (imbalance, misalignment, bearings).
• Cons: a sensor on every machine is expensive; route-based surveys typically cover only 10–20% of the fleet, once a quarter; blind to electrical and process-related defects; requires a qualified vibration analyst to interpret the data.

2. Winding testers (Megger / Baker, SKF)

Static and dynamic tests of insulation and windings (Baker DX, EXP4000).

• Pros: deep assessment of winding condition, indispensable at acceptance and after repair.
• Cons: essentially an offline test, often requiring shutdown, rather than continuous online monitoring of the whole drive under load.

3. Motor testing (PdMA — MCEmax, PdMAEYE)

A well-established brand in motor electrical diagnostics, with an online option as well.

• Pros: a powerful package covering both static and dynamic testing.
• Cons: more expensive and more complex to deploy; requires a trained specialist; less oriented toward an automatic verdict without an expert in the loop.

4. Wireless smart sensors (ABB Ability Smart Sensor)

A sensor attached to the motor housing that streams data to the cloud.

• Pros: simple "stick-on" installation, vendor ecosystem.
• Cons: the sensor is still on the machine (mounting, battery, maintenance); locked into a vendor ecosystem; periodic readings rather than full continuous analysis of the drive.

5. Sensorless ESA (Artesis e-MCM / AMT Pro)

Analysis of the motor's supply current and voltage from the motor control center (MCC). The motor itself becomes the sensor for the entire drive.

• Pros: no sensors on rotating parts; installation takes 1–2 hours; covers the entire fleet; sees mechanical, electrical and process issues at once; an AI trained on a database of 10+ million signatures delivers an automatic verdict; catches defects 3–6 months before failure; safe for hazardous areas.
• Cons: requires access to the electrical circuits in the MCC; for the finest mechanical defects it's well complemented by ultrasound/vibration at critical points.

Comparison table

Criterion	Vibration (sensors)	Megger/Baker	PdMA	ABB Smart Sensor	Artesis ESA
No sensors on the machine	❌	⚠️	⚠️	❌	✅ Yes
Whole-fleet coverage	❌ (10–20%)	❌	⚠️	⚠️	✅ Yes
Online 24/7	⚠️	❌	⚠️	⚠️	✅ Yes
Mechanical + electrical + process	❌	⚠️	✅	❌	✅ Yes
Automatic AI verdict, no expert needed	❌	❌	⚠️	⚠️	✅ Yes
Safety (no work on the machine)	❌	⚠️	⚠️	⚠️	✅ Yes
Cost of fleet-wide coverage	high	high	high	medium	low

Ranking for continuous motor fleet monitoring

1. 🥇 Artesis e-MCM — sensorless online monitoring, whole-fleet coverage, automatic verdict, the best price-to-coverage ratio.
2. 🥈 Artesis AMT Pro — a portable ESA instrument for route-based diagnostics without sensors (a 7-minute test), ideal as an entry point and for baselining.
3. 🥉 PdMA — a strong electrical diagnostics package, but more expensive and requires an expert.
4. ABB Ability Smart Sensor — an easy start, but the sensor still lives on the machine and locks you into an ecosystem.
5. Megger/Baker — indispensable for winding tests, but this is an offline test, not drive monitoring.
6. Classic vibration analysis — detailed on mechanics, but expensive to scale and blind to electrical/process issues.

A caveat: every method has its niche. Winding testers are indispensable during repairs, and vibration analysis earns its place on a handful of super-critical machines. But for covering the whole fleet, sensorless ESA leads on the sum of criteria.

What to choose for your task

• Continuous monitoring of critical motors → Artesis e-MCM.
• A one-off audit, pilot or baseline survey → Artesis AMT Pro (a 7-minute test, no sensors).
• Generators, wind turbines, diesel generation → Artesis e-PCM.
• Bring the entire fleet and all sites into a single dashboard → Artesis IoT.

Conclusion

Plenty of tools exist for diagnosing a single machine, but for covering the entire motor fleet by the combined measure of coverage, accuracy and cost, sensorless ESA leads: no sensors on the machine, 24/7 online monitoring, an automatic verdict, and visibility into mechanical, electrical and process condition all at once. For more on the method, see “Electric Motor Monitoring: What It Is and Why You Need It” and “Electrical Signature Analysis for Compressors”; for how it pairs with ultrasound, see “When the Vibration Analyzer Goes Quiet”.

KEG TRK is the official Artesis distributor in Kazakhstan. Submit a request — we'll help you select the right solution for your motor fleet and calculate the potential savings.