Table Of Contents

Viewer Types

Last Modified: October 16, 2020

The following table lists the types of viewers you can add to the Data Viewer workspace, the sensors they support, and requirements for configuring the assets to which the sensors are mapped.

Viewer Use Case How to Use Supported Sensors
Auto-Correlated Spectrum Display the measure of how similar a spectrum signal is to itself with a time lag. Find repeating patterns in the signal. Move the cursor along a trend curve to update this viewer with the spectrum measurement at different times. Vibration sensors that acquire waveform data, such as acceleration.
Auto-Correlated Waveform Display the measure of how similar a waveform signal is to itself with a time lag. Find repeating patterns in the signal. Move the cursor along a trend curve to update this viewer to display the measurement at different times. Vibration sensors that acquire waveform data, such as acceleration.
Bode1 Contains two charts that display the phase measurement and the amplitude response. The data group to which these sensors are assigned must specify a tachometer as the speed reference.

Configure the Speed Reference for the asset on the Properties tab of the Asset Configuration page.
Sensors with both 1x Phase and 1x Magnitude or 2x Phase and 2x Magnitude features.
EMSA Spectrum EMSA Spectrum viewers display the frequency spectrum measured by an HFCT. Set the cursor on a data set on the Trend Viewer to view the frequency spectrum. High frequency current transformer (HFCT).
EMSA Waterfall The EMSA Waterfall viewer simultaneously displays the EMSA spectra of successive measurements from a sensor. Shows how spectral data changes over time. Set the cursor a data set on the Trend Viewer to view the spectra of successive sensor measurements. High frequency current transformer (HFCT).
Envelope Spectrum The Envelope Spectrum viewer displays the power spectrum of the envelope waveform data. Use this viewer with the Envelope Waveform viewer to detect ringing impulses, such as bearing defects. Vibration sensors that acquire waveform data, such as acceleration.
Envelope Waveform The Envelope Waveform viewer displays the amplitude demodulated signal from sensor data. Use this viewer with the Envelope Spectrum viewer to detect ringing impulses, such as bearing defects. Vibration sensors that acquire waveform data, such as acceleration.
Full Spectrum The Full Spectrum viewer displays a spectrum of an orbit. A full spectrum takes two separate sets of sensor data from orthogonal probes, and transforms the two spectrums to create the full spectrum. The positive frequencies indicate forward precession, where the direction of shaft orbit is the same as the direction of shaft rotation. The negative frequencies indicate reverse precession, where the direction of shaft orbit is the opposite direction of shaft rotation. Configure the following settings on the asset's Properties tab:
  • Specify the name of the other sensor for the Pair Sensor property of each sensor.
  • Assign the sensors to a data group with a tachometer as the speed reference.3
Pairs of displacement sensors that acquire waveforms from orthogonal probes. 2
MCSA Envelope Spectrum This viewer displays the spectrum of the envelope waveform data and finds smaller signals, such as pole pass, mechanical speed, and fault frequencies.   Motor current sensors that NI MCSA devices support.
MCSA Spectrum MCSA Spectrum viewers display a high-resolution spectrum of the motor current magnitude for motor analysis. The spectrum resolution of the MCSA Spectrum viewer is higher than that of the Spectrum viewer. The spectrum based on the motor current magnitude is in decibels. The decibel reference is the fundamental component magnitude value.
spd-note-note
Note  

The following parameters in the MCSA Spectrum viewer have fixed values:

  • frequency range: 0 to 310 Hz
  • frequency resolution: 0.016667 Hz
  • lines of resolution: 18,600
Motor current sensors that NI Motor Current Signature Analysis (MCSA) devices support.
MCSA Torque Waveform This viewer displays the calculated time-domain torque waveform of the motor output for analysis. The duration of the MCSA torque waveform is shorter than the voltage and current waveforms due to internal processing delay. The accuracy of the calculated torque waveform may be affected if the motor Stator Resistance is configured improperly. Virtual motor sensors that NI Motor Current Signature Analysis (MCSA) devices support.
Orbit The Orbit viewer displays the actual shaft centerline movement inside the bearing housing. When you turn on integration, the viewer populates the orbit using integrated time-domain data. Configure these settings on the asset's Properties tab:
  • For the Pair Sensor property of each sensor, specify the name of the other sensor.
  • Assign sensors to a data group with a tachometer as the speed reference3.
Pairs of displacement sensors that acquire waveforms from orthogonal probes. 2
Order Spectrum The Order Spectrum viewer displays the power spectrum of the order waveform data. Use this viewer with the Order Waveform viewer to see data when the equipment speed is changing or when comparing data acquired at different machine speeds.

Assign the sensors to a data group with a tachometer as the speed reference.
Vibration sensors that acquire waveform data, such as acceleration.
Order Waveform Displays the waveform data re-sampled to a constant number of samples per revolution. Use this viewer with the Order Spectrum viewer to see data when the equipment speed is changing or when comparing data acquired at different machine speeds.

Assign the sensors to a data group with a tachometer as the speed reference.
Vibration sensors that acquire waveform data, such as acceleration.
Phasor Diagram Displays the voltage and current phasors relative to phase A voltage. Phasors with angles from -180 degrees to 0 degrees lag the reference, while phasors with angles from 0 degrees to +180 degrees lead the reference. Motor current sensors that NI Motor Current Signature Analysis (MCSA) devices support.
Polar1 Display data in polar coordinates and see phase changes in the range of zero to 360 degrees. The polar plot zero degree point is always located at the angular position of a transducer. Compare data from orthogonally-mounted displacement probe pairs with a polar plot.

The data group must specify a tachometer as the speed reference. You can configure the Speed Reference property on the asset's Properties tab.
Sensors with both 1x Phase and 1x Magnitude or 2x Phase and 2x Magnitude features.
Shaft Centerline1 Plots the average radial shaft position to show changes in shaft position during run-up or coast-down in relation to the surrounding, fixed bearing. To indicate the distance from the center point of the bearing, the viewer contains a dashed line that begins at the zero point of the axis system and ends at a point of the curve where the viewer cursor lies. Assets must have gap features. Pairs of sensors connected to orthogonal probes.2, 3
Spectrum Displays the frequency domain representation of an acquisition measurement. Move the cursor along a trend curve to update this viewer with the spectrum measurement at different times. Vibration sensors that acquire waveform data, such as acceleration.
Table Observe features from multiple sensors simultaneously when you move the cursor or view a stream in the Trend viewer. An empty cell means that NI InsightCM Server is not configured to calculate that feature for a particular sensor. Tables show the value of each feature loaded in the Trend viewer at the time where the cursor lies. All sensor types.
Thermal Imaging Compiles temperature data collected from a thermal camera into an image based on the color palette you select. Set the cursor on a data set on the Trend Viewer to view temperature data. Cameras that NI Thermal Imaging (IR) devices support.
Trend Shows the plotted values of features and spectral bands over time. This viewer is always visible on the Data Viewer page workspace. Display any number of features from any number of sensors. The x-axis represents the system time. The y-axis represents feature values that NI InsightCM Server calculates from measurements.

Static sensors (i.e. digital inputs and temperature sensors) do not produce waveform data and therefore support only the Trend and Table viewers.
All sensor types.
TSA (Time Synchronous Averaging) Spectrum Displays the power spectrum of the TSA waveform data from a specific acquisition. Move the cursor along a trend curve to update this viewer with the spectrum measurement at different times. Vibration sensors that acquire waveform data, such as acceleration.
TSA Waveform Displays the time-domain representation of a measurement with reduced noise and non-snychronous energy from a specific acquisition. Move the cursor along to a trend curve to update this viewer to display the measurement at different times. Vibration sensors that acquire waveform data, such as acceleration.
Waterfall Displays the spectra of successive measurements from a sensor simultaneously. Shows how spectral data changes over time. Set the cursor a data set on the Trend Viewer to view the spectra of successive sensor measurements. Vibration sensors that acquire waveform data, such as acceleration.
Waveform Displays the time-domain representation of a measurement from a specific acquisition. Move the cursor along a trend curve to update this viewer to display the measurement at different times. Any sensors that acquire waveform data, such as acceleration.
1Trend viewers that show feature data over time rather than data from a specific acquisition.

2 The actual angle between orthogonal probes does not need to be exactly 90 degrees. Angles of 80-100 degrees are typically acceptable.

3While not required, NI recommends you configure the bearing-clearance properties for orbit and Shaft Centerline viewers in the Properties tab of the Asset Configuration page.

Configuring Default Options for Viewers

Click Navigation menu »Options. Modify default options for waveform, spectrum, orbit, waterfall, and table viewers in the resulting dialog box.


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