Comprehensive. Flexible.
For the highest demands.
The WEARwatcher is an accelerometer with an integrated analysis unit that enables condition monitoring of the elevator's key physical parameters. Problems and anomalies are detected by the WEARwatcher before they negatively impact the elevator system. Thanks to this condition-based assessment, a technician is often only needed when corresponding indications are present.

Lifting Elevators into the Cloud


WEARwatcher MPU
Integrated analysis unit with accelerometer

WEARwatcher Satellite PEU
Evaluation unit for external sensor data, communication with WEARwatcher MPU

APS Sensor
Determining the exact positioning

APS Codeband
Determining the exact positioning

cable load sensor
Tension measurement of the ropes

Door switch
Determining the door status

Current sensor door drive
Current measurement for analysis the doors

Current sensor drive
Current sensor drive – current measurement for drive analysis, especially in combination with our free separate Windows PC software.

Water/Leakage Sensor
leakage


WEARwatcher MPU
Integrated analysis unit with accelerometer

WEARwatcher Satellite PEU
Evaluation unit for external sensor data, communication with WEARwatcher MPU

APS Sensor
Determining the exact positioning

APS Codeband
Determining the exact positioning

cable load sensor
Tension measurement of the ropes

Door switch
Determining the door status

Current sensor door drive
Current measurement for analysis the doors

Current sensor drive
Current sensor drive – current measurement for drive analysis, especially in combination with our free separate Windows PC software.

Water/Leakage Sensor
leakage
Key Features

Breakdown
probabilit
Within the first few weeks of operation, the WEARwatcher builds up a comprehensive database on which it continuously recalculates the current probability of failure. These mathematical operations take place within the device itself, and the result is visualized as the probability of failure in the cloud dashboard.

Levelling precision
When entering a floor, the flushness is specifically monitored and recorded with millimeter precision. This is done for every movement. Additionally, the WEARwatcher also monitors compliance with the requirements of EN81-20 section 5.12.1.1.4 regarding stopping accuracy, readjustment accuracy, and corrective movements ("catch-up").

Load conditions
In addition to providing information on the precise load status of each individual journey and monitoring specific load conditions (empty load, overload, etc.), the WEARwatcher also generates statistical data on the average load status, which can be incorporated into traffic analysis. Furthermore, the WEARwatcher continuously determines the empty cabin weight, taking into account friction effects, suspension variations, and balancing chains and cables.

Guides
Continuous vibration and jerk analysis, as well as frequency monitoring, detects specific aspects of the guide rail condition and reports any faults. This includes insufficient lubrication, inadequately machined rail joints, catch marks, etc. The position of these faults is recorded and reported with millimeter precision.

Vibrations
The WEARwatcher vibration sensors are mounted on the elevator car. WEARwatcher satellites can also be used to monitor other parts of the system (such as the machine frame) with vibration sensors. The analyses specifically search for problems and signs of wear affecting the drive, guides, and doors (differentiated between shaft and car doors) and report these via the cloud.

Sheaves wear
The WEARwatcher uses individual rope load measurement to detect the condition of the traction sheave by indirectly measuring the diameters of all individual sheave grooves. This allows for the detection and reporting of deviations between these diameters (worn grooves). These varying diameters lead to significant changes in rope tension during operation, resulting in substantial rope wear. Consequently, the rope's potential bending cycles are often reduced to a fraction of its nominal value.

Hoistway doors
Every door movement is evaluated using comprehensive vibration and frequency analyses. This provides a picture of the door's condition and, above all, of any wear and/or contamination on the guides and rollers. By assigning the doors to specific floors and conducting subsequent trend analyses, the WEARwatcher can pinpoint whether problems are occurring at particular cabin or shaft doors and report these specifically to the cloud.

Car doors
Every door movement is evaluated using comprehensive vibration and frequency analyses. This provides a picture of the door's condition and, above all, of any wear and/or contamination on the guides and rollers. By assigning the doors to specific floors and conducting subsequent trend analyses, the WEARwatcher can pinpoint whether problems are occurring at particular cabin or shaft doors and report these specifically to the cloud.

Wear of rope
The service life of an elevator cable can vary drastically under identical design conditions if the cable tension is not properly adjusted or monitored. Calculated service lives of, for example, 10 years can quickly be reduced to just 1 year of actual operating time. Conversely, cable tension can be used to predict service life. The WEARwatcher continuously monitors cable tension and immediately reports critical situations. Additionally, the WEARwatcher provides each user with a digital tool for easy, quick, and precise cable adjustment on any Wi-Fi-enabled device.

Emergency stop analysis
Emergency stops (regardless of whether they are initiated by the safety device or the machine brakes) are automatically detected by the WEARwatcher and reported to the cloud. Information about the cabin's position in the shaft and the current load is also reported. For forensic purposes, this data, along with maximum deceleration and forces, is also available in the cloud. Advanced analysis options are available via separate Windows PC software.

grooves
The WEARwatcher uses individual rope load measurement to detect the condition of the traction sheave by indirectly measuring the diameters of all individual sheave grooves. This allows for the detection and reporting of deviations between these diameters (worn grooves). These varying diameters lead to significant changes in rope tension during operation, resulting in substantial rope wear. Consequently, the rope's potential bending cycles are often reduced to a fraction of its nominal value.

Traction monitoring
The WEARwatcher is capable of continuously monitoring the traction performance of the elevator system. This allows critical operating conditions to be identified even before the next scheduled inspection. Furthermore, comprehensive automatic trend algorithms reliably report incipient wear on traction sheaves and ropes, as well as lubrication issues, contamination of the propellant with dirt, etc.

Elevator Rollback
The WEARwatcher triggers a rollback alert if the cabin is detected rolling backward during acceleration – specifically when the cabin is empty and rolling downwards, or loaded and rolling upwards. This typically indicates a failure of the Load measurement or incipient problems in the frequency converter.
Lifting Escalators into the Cloud
Cloud-controlled escalator monitoring!
Henning WEARwatcher It can not only be used for elevator monitoring, but is also available as a variant for escalators. Escalators are subject to particular stresses. They are usually in constant use and have to transport a large number of people every day. A breakdown has a massive impact on the flow of people in the affected building.
With the escalator version of the WEARwatcher You can query specific properties such as handrail or chain tension, step breakage, direction of travel, or vibration analyses via the cloud. Naturally, in the event of an imminent danger, such as an emergency stop, the responsible technicians will be notified immediately.


WEARwatcher MPU
Integrated analysis unit with accelerometer

WEARwatcher Satellite PEU
Evaluation unit for external sensor data, communication with WEARwatcher MPU

Load sensor
Voltage measurement of handrail and drive chain

Load sensor
Voltage measurement of handrail and drive chain

I/O Expander
Digital I/O Module

I/O Expander
Digital I/O Module

Water/Leakage Sensor
Water leak

Current sensor drive
Current measurement for analysis the drive
Key Features

Probability of failure
Within the first few weeks of operation, the WEARwatcher builds up a comprehensive database on which it continuously recalculates the current probability of failure. These mathematical operations take place within the device itself, and the result is visualized as the probability of failure in the cloud dashboard.


















