The Emerson AMS 2140 is a new flagship machinery health vibration analyzer launched by Emerson in 2025. Featuring 4-channel synchronous data acquisition and PeakVue Plus technology for early bearing fault diagnosis, it boasts a portable and rugged design. As a benchmark for speed and performance in industrial predictive maintenance, it integrates vibration analysis, field balancing and motor diagnostics in one device. It supports full-range monitoring for equipment from low-speed machinery to high-speed turbomachinery. It helps enterprises accurately detect potential equipment faults and reduce unplanned downtime amid lean staffing and budget constraints.
DOCUMENT DOWNLOAD
ams-2140 overview data sheet.pdf
AMS 2140 Quick Start Guide.pdf
AMS Accessories REFERENCE GUIDE.pdf
Core Advantages
High-efficiency 4-channel acquisition for doubled productivity
Equipped with industry-leading 4-channel synchronous acquisition capability, paired with triaxial accelerometers, it can simultaneously collect vertical, horizontal and axial data of bearings. Its data collection time is 50% shorter than comparable products, and ODS modal data acquisition speed is increased by 66%. All channels operate synchronously during startup and troubleshooting of critical equipment to prevent data loss.
PeakVue Plus technology for early bearing fault alert
Integrated with Emerson’s patented PeakVue and upgraded PeakVue Plus technologies, it detects stress waves generated by bearing and gear wear. It accurately identifies incipient faults when the remaining service life is over 20%, distinguishes periodic mechanical defects (bearing/gear faults) from random non-mechanical issues such as insufficient lubrication, and provides quantitative severity indicators. This enables advance maintenance planning to avert severe equipment damage.
Industrial-grade portability and durability for all working environments
It features IP65 dustproof and waterproof rating, with an operating temperature range from -10℃ to 50℃. The lightweight compact unit measures 248mm×40mm×226mm and weighs only 1.79kg. The ergonomic anti-slip shoulder strap eases load, and one-handed operation is available. Fitted with a high-brightness touchscreen with ambient light sensor and backlit keypad, it adapts to harsh industrial conditions including strong sunlight and dark environments.
Long battery life & wireless connectivity for non-stop on-site operation
The standard lithium battery delivers over 10 hours of continuous operation on a single charge, supporting full or even double work shifts. The swappable battery design, together with optional external and vehicle chargers, fully meets long-duration power demands. Wi-Fi and Bluetooth are supported for real-time data synchronization with AMS Machine Works software and remote configuration updates, realizing efficient parallel data collection and analysis.
Embedded intelligent diagnosis for easy operation by all users
Built with 14 pre-configured expert analysis functions, including startup/shutdown analysis, bump test, order tracking and MCSA motor current analysis. Complex parameters are not required, and precise fault diagnosis can be completed with one click. It also supports waveform autocorrelation, fault frequency superposition and trend analysis (up to 2 years), and displays up to 8 groups of comparative graphs simultaneously, greatly lowering technical operation barriers.
Modular design for flexible configuration and expandability
It offers flexible options of 1/2/4-channel versions. Optional modules include route measurement, field balancing, transient analysis and structural analysis. Functions can be expanded at low cost in the later stage to protect initial investment, catering to maintenance requirements of enterprises of all sizes.
Product Features
1. Hardware Specifications
Display & Operation
6-inch color TFT touchscreen (640×480 resolution) with backlit keys. A built-in stand facilitates desktop operation. The charging and communication ports are located on the top, causing no obstruction during placement.
Storage & Battery Life
1 GB internal memory, expandable via SD card up to 32 GB. Powered by a 7.2 V rechargeable lithium battery, fully charged within 4 hours and supporting hot-swap replacement.
Measurement Performance
Equipped with a 24-bit high-precision A/D converter and a dynamic range of 120 dB. The frequency range covers DC ~ 80 kHz, suitable for both low-speed equipment (minimum DC ~ 10 Hz) and high-speed centrifugal compressors. The vibration measurement range reaches ±90 g when used with a 100 mV/g sensor.
Input Interfaces
4-channel dynamic inputs plus phase input, and 4-channel DC inputs. It accepts signals of acceleration, velocity, displacement, voltage and rotational speed, and is compatible with triaxial accelerometers, laser tachometers, current clamps, proximity probes and other sensors.
2. Core Functional Features
Full-Featured Vibration Analysis
Supports multi-dimensional analysis including spectrum, waveform, shaft orbit and waterfall plot. It enables cross-channel coherence test to locate vibration sources within 2 minutes, ODS modal analysis for structural dynamic modeling under operating conditions, and transient analysis to capture continuous waveforms during equipment startup, shutdown and process fluctuation.
Dedicated Motor Diagnostics
Comes with standard MCSA motor current analysis function. Combined with flux coils and current clamps, it conducts non-intrusive detection of AC motor faults such as broken rotor bars, stator winding short circuits and resistive joint failures without equipment shutdown.
On-site Field Balancing
Supports single-plane and four-plane balancing. Vector averaging eliminates background vibration interference. The patented balancing watchdog function automatically identifies structural issues like looseness and resonance to prevent balancing failure.
Adaptation for Variable-speed Equipment
Automatically adapts to rotational speed changes of variable-speed machinery to eliminate data blurring and accurately track fault trends. Ideal for fans, pumps and other equipment under variable operating conditions.
Journal Bearing Prognostics
Four-channel synchronous monitoring of shaft orbits for journal bearings to detect oil whirl, oil whip, misalignment, shaft friction and other faults. Trend analysis helps predict structural risks such as cracks.
Application Scenarios
Predictive Maintenance for Rotating Machinery
Widely applied to critical rotating equipment including motors, pumps, fans, compressors, gearboxes and steam turbines. It regularly collects vibration data to early detect bearing wear, gear pitting, unbalance, misalignment, looseness and other faults, and supports maintenance scheduling.
Transient Analysis During Equipment Startup and Shutdown
Monitors the startup and shutdown processes of high-speed equipment such as steam turbines and centrifugal compressors. It captures resonance frequencies and critical speeds, analyzes dynamic characteristics of shaft systems, and prevents equipment damage during operation transitions.
Motor Health Monitoring
Suitable for routine inspection of industrial AC motors. It detects electrical faults and mechanical vibration risks, especially for high-voltage and high-power motors, and prevents unexpected burnout.
Fault Diagnosis for Complex Structures
For issues like resonance of large equipment frames and foundations, as well as pipeline vibration, ODS modal analysis visualizes equipment motion, locates structural weak points and provides guidance for reinforcement and renovation.
Temporary On-line Monitoring
For fault-prone units or new equipment in the running-in period, the device can work continuously for one month with external power supply. It automatically collects data of vibration, temperature, pressure and more to track fault progression and ensure stable operation until the next scheduled maintenance.
Correlative Vibration Analysis for Multiple Units
For densely arranged pump sets and motor sets on site, the 4-channel coherence test quickly identifies vibration transmission issues and distinguishes inherent equipment faults from external vibration interference.
Frequently Asked Questions
- Is the AMS 2140 suitable for small and medium-sized enterprises (SMEs)?Yes. It adopts a modular design. SMEs may start with the basic 1/2-channel version and later expand to 4-channel, field balancing and other modules as needed, avoiding large one-time investment. Featuring user-friendly operation, it requires no professional vibration analysis certification. General maintenance staff can operate it after simple training, which fits the lean staffing model of SMEs.
- Can PeakVue Plus replace oil analysis?It cannot fully replace oil analysis, yet the two methods complement each other. PeakVue Plus focuses on early wear detection of bearings and gears caused by metal contact fatigue, delivering early warnings 3 to 6 months in advance. Oil analysis mainly monitors lubrication conditions and compositions of wear particles, ideal for identifying lubrication failure and contamination-induced wear. Combining both solutions enables comprehensive diagnosis of mechanical and lubrication faults and improves accuracy.
- Is the unit approved for use in hazardous areas?Yes. Specific models hold Class I/II Division 2 (North America), ATEX II 3G and IECEx Zone 2 hazardous area certifications, suitable for flammable and explosive environments such as petroleum, chemical and natural gas industries. Please check the hazardous area rating of the selected model to ensure compliance with on-site requirements.
- What if the battery life is insufficient?Three solutions are available:① The standard lithium battery offers over 10 hours of continuous operation, enough for a single work shift.② Purchase spare batteries for on-site hot-swap replacement to double the runtime.③ Use an external charger or vehicle charger for charging in the workshop or on the way, catering to field operations in remote plants.
- Can new users operate it without professional knowledge of vibration data interpretation?Absolutely. Built-in intelligent expert analysis eliminates the need to manually interpret complex spectrums and waveforms. Bearing diagnosis, motor fault detection, field balancing and other tasks can be completed with one click. The device automatically generates fault types, severity levels and maintenance recommendations. With color-coded alarm prompts, even novice users can quickly spot potential risks.
- Is it compatible with third-party sensors?It works with most mainstream third-party sensors, including IEPE accelerometers, velocity probes, proximity probes, current clamps and temperature sensors. Any sensor with voltage/current output and matching parameters such as sensitivity and measuring range is fully compatible. The 4-channel package comes with dedicated sensors for out-of-the-box use.
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