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Expert Logger

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Portable Energy Monitoring tools

Energy efficiency has become an important topic for industrial companies as part of Singapore’s energy transition and the requirements of Green Mark Certification. Energy savings can be determined using Delphin's energy-measurement case.

The case is based on Message and Expert devices which can function and record measurement data independently without the need for PC support. The devices are highly flexible and the measurement case has been designed according to customer requirements. This enables the system to be used for a range of tasks on plant, machinery and components. Analog inputs record pressures, flows, quantities; impulse inputs record energy, gas and water consumption. Electrical measurement transducers enable 4-phase power data to be acquired. For evaluation, the easy-to-use ProfiSignal software provides all the necessary tools.

Application features

  • Synchronous acquisition of electrical data, temperature, pressures, flows and quantities
  • Serial interfaces using ModBus RTU and ASCII protocols, as well as PROFIBUS DP
  • Optional high-speed sampling rates for fault analysis and process data acquisition

Typical application features

  • Energy efficiency measurement in plant and machinery
  • Acceptance-control measurement on systems
  • Retrofit measurements in plant and machinery
  • Measurement of energy consumption in companies
  • Creation of output and load profiles
  • Determining energy values and peak load detection

Expert Logger

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Crane Condition monitoring (Black Box)

Cranes are complex systems made up of many different component types. They need to be continuously available, have low operating costs and high productivity and therefore justify the use of a monitoring system that uses Expert Logger or ProfiMessage devices. These ensure continuous monitoring for wear and tear as well as detailed analysis in the event of a fault. Digital and analog signals can be acquired and recorded independently within the Message device. A partitionable data memory enables differentiated storage of fault data including pre and post histories as well as long-term data for condition monitoring. The crane data can be accessed via UMTS, WLAN or a USB stick and evaluated using ProfiSignal.

Application features

  • Synchronous acquisition of high-speed analog and digital signals
  • Condition monitoring and fault diagnostics within a single device
  • No requirement for an on-site PC and easy data read-outs using a USB stick
  • Data transmission options via WLAN, UMTS or network routers
  • Fast and easy data evaluation using logic analyses and trends 

Typical areas of application

  • Fault analysis in industrial cranes
  • Monitoring of wear in crane systems
  • Development of crane maintenance-plans using data analysis
  • Monitoring of system symmetries
  • Monitoring crane travel and range distances
  • Error detection in control and power components
  • Maintenance planning for container cranes

Expert Vibro

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Machine vibration measurement

Unintended and high-level vibrations in machinery and test stand applications result in uneconomical operation and potential damage. Using Expert Vibro  devices, different types of vibration sensor undergo unfiltered processing within frequency spectra ranging from 0 to 20.000 Hz. Excitation frequencies can then be determined to enable process optimisation. The Expert Vibro devices are  capable of continuously acquiring and monitoring the levels of damaging frequencies and can operate fully independently due to their integrated internal data loggers. Visualisation takes place using the ProfiSignal software with data being portrayed in cascade, FFT or trend diagrams.

Application features

  • Connectivity for any type of vibration sensor (mV, mA, IEPE)
  • Process and vibration measurement within a single device
  • FFT analysis within the device itself along with frequency-band analysis
  • Monitoring of vibration levels and intelligent data logger within the device
  • Visualisation and analysis using time signal, trend, FFT cascade and orbit diagrams

Typical areas of application

  • Vibration measurement in plant and machinery
  • Monitoring of turbines and generators
  • Diagnoses of vibration causes
  • Vibration measurements on gas, hydro and gas turbines
  • Vibration measurement and test stands
  • Acceleration measurement and FFT analyses
  • Researching vibration generators
  • Checking effectiveness of vibration-reduction measures
  • Measurement of mechanical vibrations

Expert Vibro

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Long Term Vibration analysis

Vibrations are generally caused by faults and therefore need to be avoided. Machinery can suffer damage through vibrations with a negative influence on product quality. Vibrations can be perceived as noise, wobbling, shaking or whistling. The source of the vibrations requires identifying and rectifying.

The Expert Vibro device is ideal for such tasks. Its universal inputs enable the connection of any type of sensor signal. Signal analysis takes place online using highresolution spectra or characteristic-value computations. Characteristic values possess all the relevant information about the energy content of vibrations. Whenever vibrations occur, the independently operating Expert Vibro records all relevant data.

Application features

  • Acquisition of vibrations using any type of sensor
  • Simultaneous acquisition of binary or analog process signals
  • Vibration analysis using frequency analysis
  • Calculation of characteristic values such as vibration velocity
  • Long-term data acquisition for detecting sporadic vibration events

Typical areas of application

  • Analysis and the identification of the cause of problematic vibrations in processes
  • Checking effectiveness of vibration-reduction measures
  • Identifying patterns in vibration problems
  • Long-term observation of vibration phenomena
  • Low-frequency vibration analysis

Expert Vibro

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Shaft Vibration Measurement

Up to 16 shaft vibrations can be synchronously acquired, analysed and monitored. Both static shaft positioning and dynamic shaft vibrations can be determined from the bearing casings. Radial shaft positioning and rotation speeds are also acquired via a KeyPhasor™ on the shaft. Phase information can be calculated from the shaft position.

From the measured time signal, the Expert Vibro device can directly calculate spectra and characteristic values such as smax or peak-peak. The data can then be independently recorded or transmitted via Ethernet or PROFIBUS-DP to a central system or PC.

Using ProfiSignal‘s Vibro software option, measurement data can be portrayed and evaluated in orbit, polar, bode or FFT diagrams.

Application features

  • Evaluation of peak to peak spp and maximum deflection smax
  • Monitoring of static shaft positioning and dynamic shaft vibrations
  • Frequency/amplitude spectra calculation online within the Expert Vibro device
  • A single device with up to four different triggers for rotation speeds
  • Visualisation and analysis using time signal, trend, spectra, cascade and orbit diagrams

Typical areas of application

  • Hydroelectric machinery
  • Steam and gas turbines
  • Compressors and superchargers
  • Large transmission systems
  • Transmission-unit testing
  • Turbine testing

Expert Vibro

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Bearing Condition Monitoring

The diagnosis of bearing damage in roller bearings is an integral part of servicing and maintenance tasks. Condition monitoring systems (CMS) are increasingly being used for machine diagnoses. Many CMS systems are based on vibration measurements. Two contrasting approaches exist: diagnostic, qualitative  approach (envelope spectrum); quantitative  approach (vibration velocity). Delphin's Expert Vibro Devices are suitable for both approaches. The quantitative approach integrates the acceleration time signal into vibration velocity. The vibration velocity is then usually monitored as a sum level. An Expert Vibro device is able to calculate an envelope spectrum from the time signals of acceleration sensors. it provides detailed information on the condition of the bearing (inner and outer rings, cage and ballbearings).

Application features

  • Evaluation of vibration velocity Veff according to DIN ISO 10816
  • FFT analysis within the device / frequency band monitoring
  • Evaluation using envelope spectrum on bearing damage
  • Monitoring of vibration levels
  • Intelligent recording within the device
  • Visualisation and analysis using time signal, trend spectrum, FFT cascade, orbit and polar diagrams

Typical areas of application

  • Bearing damage diagnoses
  • Envelope spectrums
  • Analysis of vibrations in drives
  • Analysis of gearing problems
  • CMS on roller bearings

Expert Vibro

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Turbines/generators monitor

Vibrations on turbines and generators can be monitored for improper vibration values irrespective of power class and bearing type. The vibration velocity is typically monitored. By using Expert Vibro devices, vibration velocity sensors can be used. The vibration velocity from the sensor signal is measured proportionally and converted into an effective value. If vibration acceleration sensors are used, the signal is integrated online and transferred into vibration velocity. The TRMS and peak to peak es are then created and continuously monitored by threshold channels. If a threshold is exceeded, digital outputs are switched or messages sent to controllers via a fieldbus.

Application features

  • Monitoring of vibrations on hydroelectric turbines and air gaps
  • Diagnosing damage in ship drives, bearings and shafts
  • Acquisition and monitoring of combustion chamber vibrations in gas turbines
  • Monitoring and signal evaluation in test stands
  • Mobile system (measurement case) for vibration measurement technology on the go

Typical areas of application

  • Small industrial gas turbine monitoring
  • Gas engine monitoring
  • Compressor and supercharger monitoring
  • Engine and drives monitoring
  • Electric motor monitoring

Expert Vibro

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Presure vibration monitoring

In addition to conventional vibration measurements, monitoring can also be performed on dynamic pressure vibrations in the combustion chambers of gas turbines. Temperature resistant pressure sensors are installed within the chambers to measure dynamic pressure vibrations using Expert Vibro devices. Dynamic pressure vibrations contain information relevant to machine safety and analysis. Narrow-band characteristic values are determined and monitored from FFT analyses of the pressure signals. The Expert Vibro device directly determines and monitors TRMS values for each frequency band. In the event of an alarm, the central system is notified via PROFIBUS, or a digital output can be triggered. Spectra are portrayed in a spectrogram via ProfiSignal.

Application features

  • Compact and inexpensive monitoring solutions for combustion chamber vibrations
  • Independent device with a 16 GB data logger memory
  • Universal inputs suitable for pressure sensors
  • Calculation of narrow-band characteristic values
  • Calculation of TRMS characteristic values

Typical areas of application

  • Combustion chamber vibrations in gas turbines
  • Measuring flow rates in streams
  • Cavitation measurement
  • Measurement of low-frequency vibrations in burners
  • Measurement of vortex induced vibration (Karman vortex street)
  • Measurements in engine compartments and exhaust systems
  • Measurement of Coriolis vibrations

ProfiMessage

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Vibration and process data

Process measurement technology usually involves the acquisition of mA or mV sensor signals with limited temporal resolution. The demands are higher when acquiring transient events or vibrations. Data acquisition rates are much higher and a more sophisticated evaluation is required. Systems from different suppliers are therefore necessary with subsequent problems of compatibility. However, with the ProfiMessage series, Delphin offers systems ideal for measuring standard type signals. In combination with Expert Vibro devices, all data can be acquired, computed and monitored within a single system. The measurement data are all based on the same time scale and so are directly comparable with each other.

Application features

  • Acquisition of mV, mA and IEPE signals within a single system
  • No interface problems due to single system design
  • Affordable integration of vibration measurements into process measurement systems
  • Profi Signal software suited to evaluating and monitoring all measurement data
  • Secure, relational data storage

Typical areas of application

  • Vibration and combined temperature measurement
  • Vibration measurement with fieldbus coupling (PROFIBUS)
  • Full test stand measurement for all types of signal
  • Engine and generator monitoring
  • Monitoring system in combination with vibration measurement

Expert Vibro

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Vibration test stands

Vibrations tests are carried out during the development of many products. Test samples are mounted on shakers and shaken and rattled according to requirements. Vibration measurements are taken at the shaker itself and at the test sample. Vibrations patterns at the test sample are referenced back to the shaker and frequencies, phase shifts and amplitudes undergo measurement. Expert Vibro is especially suited to such tasks. 8 or 16 synchronous inputs enable processing of all the required measurements. The device is also able to simultaneously control the shaker and provide set-point values. Digital outputs monitor characteristic values and can be used for switching procedures in the event of an alarm.

Application features

  • Synchronous acquisition of vibrations at test stands
  • Management of set-point data at test stands via bus or analog outputs
  • Monitoring of measurement data with automatic shutdown
  • Simultaneous acquisition of vibrations, voltages, currents and temperatures

Typical areas of application

  • Product testing at shaker test stands
  • Engine, transmission and supercharger test stands
  • Washing machine test stands
  • Balancing test stands