Bently Nevada ADRE 408 DSPi Specifications

ADRE Sxp and 408 DSPi
Datasheet
Bently Nevada Machinery Condition Monitoring

Description

ADRE Sxp Software and the 408 DSPi (Dynamic Signal Processing Instrument) make up a highly scalable system for multi-channel signal processing and data acquisition.
Unlike other general-purpose computer-based data acquisition systems, ADRE Sxp and the 408 DSPi are specifically designed for real-time highly parallel signal processing and presentation. This extremely versatile system incorporates the functionality of many types of instrumentation, such as oscilloscopes, spectrum analyzers, filters, signal conditioners, and digital recorders into a single platform. The system is designed specifically for secure corporate network environments, allowing it to operate remotely across a LAN/WAN, or store data in full “stand­alone” mode without an additional/external computer. Additional equipment is seldom, if ever, needed. The system’s real-time display capability permits it to continuously display data independently of data being stored to permanent memory. For established ADRE system users, ADRE Sxp also supports all previous ADRE for Windows databases.
172179 Rev. AC
An ADRE Sxp data acquisition system consists of:
l 408 Dynamic Signal Processing Instrument(s). l ADRE Sxp client software, ADRE Quick Configuration
software.
l A computer system capable of running ADRE Sxp
software.
The 408 DSPi is fully portable or can be rack mounted allowing convenient operation in test stands, on-site, or at remote locations. The 408 DSPi’s highly configurable design supports virtually all standard and non-standard input types including both dynamic transducer signals (such as those from proximity probes, velocity transducers, accelerometers, force
ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
hammers, dynamic pressure sensors), and static signals (such as process variables from transmitters and distributed control systems). For rotating machinery applications, users can provide a Keyphasor or other speed input signal (such as that from a magnetic or optical transducer) to drive synchronous sampling and order tracking. For structural analysis needs, impact testing using force hammers is supported. The system also supports multiple triggering modes for automated data acquisition, allowing you to use the system as a data or event logger without an operator present.
The Client-Server architecture allows multiple software clients to operate and simultaneously view data from single/multiple 408 DSPi systems simultaneously, permitting users to independently view data in the fundamental measurement units of their choice. Software installation and configuration are quick and easy, allowing mass configuration of multiple channels with minimal user intervention. Configuration templates and software further simplifies the process, allowing the user to install the software, produce a configuration, and begin capturing data in minutes.
408 DSPi Overview
Each 408 DSPi supports up to 4 sampling cards for up to 32 channels of data acquisition. The 408 DSPi base system uses internal clocks and simulated speed/Keyphasor signals to support both asynchronous and synchronous sampling for all channels. Speed Input/Trigger cards support up to 3 independent speed input channels for external speed inputs. Each Speed Input/Trigger card uses 1 available slot, and the 408 DSPi can use a maximum of 2 Speed Input/Trigger cards simultaneously providing up to 6 physical speed inputs and 6 simulated speed inputs. The user can assign any speed input (KPH) to any channel in a 408 DSPi. Most signal processing and sampling parameters can be changed “on-the-fly” without interrupting data collection.
The 408 DSPi architecture provides flexible hardware configuration. Users can insert sampling cards into the chassis as required. Slots 1 through 4 support all standard sampling
cards. Slot 5 is intended specifically for the Digital Replay card as well as future option cards.
The standard Dynamic Sampling and Speed Input/Trigger cards provide full support for structural analysis and impact testing. Data can be analyzed natively or exported to 3rd party applications if desired.
The 408 DSPi front panel controls and displays basic functions and data. Users can directly initiate manual samples and triggering from the front panel without using ADRE Sxp software. The front panel LEDs indicates sampling and trigger status and activity. Users can download multiple sampling configurations to the 408 DSPi and later select them for use from the front panel.
8-Channel Dynamic Sampling Card (168905 – AA)
The 8-channel dynamic sampling card is an extremely powerful and flexible signal processing engine. Along with the analog front-end conditioning, the user can configure most transducer inputs, with positive or negative bias, while maintaining maximum signal input range. An array of DSP processors and 24-bit ADCs provide maximum resolution. Input signals can be either AC or DC coupled, and users can independently define upper and lower input voltage levels along with full-scale range and transducer scale factor.
The sampling card can provide a variety of data depending on the configuration and user needs. Each channel can provide multiple “static” variables including:
l Direct amplitude. l Bandpass amplitude. l 1X and 2X Amplitude and Phase, and up
to 4 additional user defined nX vectors including amplitude and phase.
l Average & instantaneous gap or bias
voltages. l Multiple speed values. l Adate/time stamp.
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ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
In addition to the static data, each channel can provide up to 4 user-defined dynamic waveforms. Users can configure waveforms for simultaneous Synchronous and/or Asynchronous sampling, with different sampling rates and/or frequency spans. The sampling card supports up to 2 different synchronous sampling rates simultaneously. Time-Synchronous Averaging can also be enabled for all synchronous waveforms. In addition, the card can also sample and store the raw time-continuous data for each channel. All channels within the system are always sampled simultaneously, are synchronized, and are initiated based on a set of user defined events.
3-Ch Speed Input/Trigger Card (168906 – AA)
The 3-channel speed input/trigger card supports a variety of transducer inputs and signal conditioning needs including; proximity, magnetic, optical, and laser pickups. Transducer power for both optical pickup and ± 24Vdc proximity is also available if needed. For impact testing applications, the force hammer output can be connected directly to this card providing level triggering and full dynamic waveform capture. The card integrates a rich set of configurable analog signal conditioning tools including: input gain, voltage clamping, inversion, rising or falling edge trigger, auto/manual threshold, and hysteresis. The user can associate a programmable speed input (Keyphasor) multiplier/divider for each channel independently, define discrete values for events per revolution, or, a final ratio, whichever is more convenient. Each channel can have up to three separate “stages” of multiplier/divider ratios. Trigger/speed input channels provide full dynamic sampling, complete with static and waveform data, available for real-time viewing and storage.
Each channel also includes a buffered output, allowing the user to select either raw, conditioned analog, or TTL outputs. The buffered outputs are independent of the signal being used for processing.
Digital Replay Card  (168907 – AA – BB - CC)
The Digital Replay Card provides simultaneous synchronous and asynchronous internal digital reprocessing and playback of all channels in the 408DSPi. The replay card maintains exceptional accuracy and precision in the signal reprocessing that far surpasses the capabilities of other equipment and reprocessing techniques. The digital replay card can play back raw data for all channels simultaneously including Keyphasor/speed and dynamic sampler inputs. Users can modify all sampling parameters on a KPH channel when replayed, and fully manage and re­condition the gain, inversion, clamping, and other characteristics of Keyphasor signals. This provides the ability to control triggering edges and thresholds as reprocessing and analysis requires. On standard dynamic channels, users can modify most sampling parameters. As an example, users may add or modify waveform assignments, variable generation, filtering options, frequency span, and Keyphasor assignments that did not exist in the original configuration reprocessing the data. Additionally, users may add or modify all sampling criteria and triggering parameters. Full scale range, coupling, and transducer type cannot be altered for standard dynamic channels. The Digital Replay card occupies Slot #5 of the 408 DSPi and does not reduce the number of channels available for data collection.
With the addition of Analog Output Replay Card the user may send up to 32 channels of recorded signals through data ports to auxiliary equipment. These signals are analog recreations of the original data observed by ADRE. The Replay Module can be ordered with or without the Analog Output Replay Card. Existing Replay Cards can be modified to include the Analog Output feature by sending the cards to Product Repair at Bently Nevada.
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ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
Transducer Power Supply Card (168908 – AA – BB)
The transducer power supply card provides power for a wide variety of displacement, velocity, acceleration including ICP accels, force hammers, and other transducer types used in field and test stand applications. This card can simultaneously power up to 32 transducers in various combinations, and provides direct physical connections for up to 16 transducers, eight ± 24 Vdc transducer systems and eight constant current transducer systems. Field connection cable and adapter accessories accommodate additional transducer connections.
In addition to ± 24 Vdc selections, the card provides ± positive and negative bias selections for constant current applications, all of which can be used simultaneously, to provide a highly flexible power source for most any need. Users can configure transducer power bias in blocks of four (4) directly from the card without the need for special tools, jumpers, or software.
Networking Overview
Each output provides individual short-circuit protection, current regulation, and indicators for power status and voltage/current selection (complete card status is provided within ADRE Sxp client software). Also, this card can occupy a dedicated option slot and leave all transducer input slots available.
Field wiring cable accessories allow the user to conveniently connect both power and signals to the 408DSPi. These accessories support most voltage and constant current transducer applications without the need for additional bulky equipment. Field wiring accessories and cables must be ordered separately.
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ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC

Specifications

408 DSPi
Typical specifications are provided for a temperature of +25 °C ± 3 °C (+77 °F ± 5.4 °F ) except where noted.
Data Storage Capacity
Communication Dual 1000/100Mb RJ45
Internal Cloc Battery-Backed Real-Time
Signal Conditioning - General
Internal - 480GB or 960GB
Ethernet Ports Protocol - TCP/IP DHCP or Fixed IP addressing LAN/WAN compatible
clock (RTC) accuracy is ± 2 seconds / month
DC
0.35 to 50 V Configurable Full Scale Range
Status Indication
Boot, Selftest, OK/Not OK, Activity, A/D over range
Direct Measurement Accuracy
Filter values @ 0 db points unless specified otherwise.
2
Dynamic Sampling Card Amplitude
vs. Frequency Cumulative Error
Non-RMS, Non-Integrated Amplitude
AC Coupled – Hi Mode
AC Coupled
- Low Mode
1.6 Hz to 50 kHz ± 1.25% of Full Scale Range
N/A
2
8 Channel Dynamic Sampling Card
Slot Position Slots 1 through 4
24 Bit A/D converters
Input Impedance
Single Ended 742kΩ
Differential 1.484 MΩ between sig+ and sig-
4-20 mA 511Ω
Inputs
Single-
8
ended
Differential 4
4-20 mA 8
Maximum
-25 to 25 V Signal Input Range:
AC
0.7 to 10 V Configurable Full Scale Range
DC Coupled – Hi Mode
DC Coupled
- Low Mode
1 Hz to 50 kHz ± 1% of Full Scale Range
± .011V below 1 V pp
0.167 Hz to 20 kHz ± 1% of Full Scale Range
 ± .011V below 1 V pp
Non-Integrated, RMS Amplitude
Acceleration AC/DC
10 Hz to 50 kHz
± 1% of Full Scale Range Coupled Hi Mode
Velocity
AC/DC Coupled Hi
10 Hz to 50 kHz
± 1% of Full Scale Range Mode
AC Coupled
N/A Low Mode
Acceleration 3 Hz to 50 kHz
± 1% of Full Scale Range
2
2
2
2
2
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ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
DC Coupled Low Mode
Velocity DC Coupled Low Mode
3 Hz to 50 kHz (-3db @ 3Hz ) ± 1% of Full Scale Range
2
Non-RMS Integrated, RMS Integrated Amplitude
Acceleration AC Coupled
10 Hz to 20 kHz ± 1% of Full Scale Range
2
Hi Mode
Velocity AC Coupled Hi
3 Hz to 20 kHz ± 1% of Full Scale Range
2
Mode
Direct Measurement Update Rates
Valid KPH or Simulated
0 to Peak / Peak to Peak values updated every 4 KPH periods.
KPH present
Invalid KPH or No KPH present
High Mode – 2 sec sliding window Low Mode – 12 sec sliding window 100ms update rate
Integrated Values
High Mode – 2 sec sliding window Low Mode – 2 sec sliding window 100ms update rate
Bandpass Measurement Accuracy
Bandpass Filter Selections (Typical)
Butterworth 2 Pole ( -40 db/decade )
4 Pole ( -80 db/decade ) 6 Pole ( -120 db/decade ) 8 Pole ( -160 db/decade )
Range High Pass 1 Hz to 25.5kHz
Low Pass 10 Hz to 50kHz Min separation between
HPF and LPF 2 Pole – 10.24 x HPF
4 Pole - 3.24 x HPF 6 Pole - 2.25 x HPF 8 Pole – 1.96 x HPF
Options HPF < 10 Hz ( 2 Pole )
HPF ≥ 10 Hz ( 2, 4, 6, 8 Pole) LPF ≥ 10 Hz ( 2, 4, 6, 8 Pole)
-3db Corner Frequencies
HPF & LPF - 1 Hz Increments,
-3db ± 5%
Bandpass Measurement Update Rates
Valid KPH or Simulated KPH present
Invalid KPH or
0 to Peak / Peak to Peak values updated every 4 KPH periods.
100ms update rate No KPH present
Integrated 2 sec sliding window
Non-
2 sec sliding window Integrated
Filtered Measurements
Specifications are exclusive of filter corner settings and transition regions. Filter values specified @ -3 db points.
Non-RMS, Non­Integrated Amplitude
Non-RMS Integrated, RMS Integrated Amplitude
1 Hz to 50 kHz ± 1% of Full Scale Input
1 Hz to 20 kHz ± 1% of Full Scale Input
Filter Bandwidth
Selectable
1.2 cpm, 12 cpm, 120 cpm
(0.02 Hz, 0.2 Hz, 2 Hz)
User enabled
2
Auto­switching tracking filters
120 cpm < to > 12 cpm @ 600
rpm
12 cpm < to > 1.2 cpm @ 60
rpm transition
2
Filter Settling Time to 95 / 99 % of final value
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120 cpm < 0.477 / .796 sec
12 cpm < 4.77 / 7.96 sec
1.2 cpm < 47.7 / 79.6 sec
ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
nX Amplitude and Phase Accuracy
nX Resolution and Range
1 to 120k rpm ± 1% of Full Scale Range
2
± 3˚ of Input (Steady State)
0.01X Increments
0.01X to ((sample/rev)/2-1)X
Below Minimum Amplitude
DC Coupled ≤ 0.015 Vpp
AC Coupled ≤ 0.5% of full scale
Gap Voltage Measurements
Measurement Ranges
0 V to 24 Vdc
-24 V to 0 Vdc
-12 to 12 Vdc
-24 to 24 Vdc Upper and Lower voltage range fully programmable between -25 to 25 Vdc
Amplitude ± 0.17% of FSR @ -25 to 25 V
± 0.26% of FSR @ 0 to ± 25 V ± 0.26% of FSR @ -12.5 to 12.5 V (FSR = Full Scale Range)
Resolution Measured 366.2 µV @ 24 V
FSR
Response to 95%/99% of Final Value
Instantaneous Gap
0.95 / 1.59 sec.
-3db ± 5% @ 0.5 Hz
61.035 µV ( 1 to 5 Vdc )
Response to
0.95 / 1.59 sec. 95%/99% of Final Value
Low-pass filter -3db ± 5% @ 0.5 Hz
4 – 20 mA Input
Input Range 0 - 41.6 mA max
Amplitude ±1% of Full Scale Input
Resolution 244 nA / bit
Response to
5.3 / 8.84 sec 95%/99% of Final Value
Low-pass filter -3db ± 5% @.09 Hz
Dynamic Waveform Data
Filtering associated with asynchronously sampled dynamic waveform data specific to anti-alias filters. Synchronously sampled waveform data is not anti­alias filtered.
Asynchronous Sampling Rates
128 to 128kHz ( 2.56 x Frequency Span, 50, 100, 250, 500, 1k, 2.5k, 5k, 10k, 25k, 50k Hz )
Anti-Alias -80 db Minimum
Average Gap 5.3 / 8.84 sec,
-3db ± 5% @ .09 Hz
Process Variable Measurements
Voltage Inputs 0 to 10 Vdc( Typical )
1 to 5 Vdc Typical )
Measurement Range
-25 to 25 Vdc ( Upper and Lower voltage range fully programmable)
Amplitude ± 0.12% of FSR @ 25V
± 0.30% of FSR @ 10V ± 0.75% of FSR @ 1-5V (FSR = Full Scale Range)
Resolution 152.588 µV ( 0 to 10 Vdc )
AC Coupled 1 Hz to 50 kHz
Amplitude ±1% of Full Scale Range
Phase ±3˚ of Input
DC Coupled DC Hz to 50 kHz
Amplitude ±1% of Full Scale Range
Phase ±3˚ of Input
Output Up to 4 simultaneous
asynchronous waveforms per channel
Synchronous Sampling
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Samples/rev (16, 32, 64, 128, 256, 360, 512, 720, 1024, 2048)
2
2
ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
Rates Synch sample rate X rpm ≤
32 kHz
Hardware Generated Time Synchronous Averaging
DC Frequency Support
Output Up to 2 simultaneous
Up to 2048 samples per waveform, up to 512 Averages i.e. (8 revs @ 256 samples/rev), (4 revs @ 512 samples/rev)
937 rpm (15.62Hz) @ 2048x
1.87k rpm (31.25Hz) @ 1024x
2.66k rpm (44.4Hz) @ 720x
3.75k rpm (62.5Hz) @ 512x
5.3k rpm (88.8Hz) @ 360x
7.5k rpm (125Hz) @ 256x 15k rpm (250Hz) @ 128x 30k rpm (500Hz) @ 64x 60k rpm (1kHz) @ 32x 120k rpm (2kHz) @ 16x (AC Frequency support from 1 Hz)
synchronous waveforms per channel
Amplitude error vs. frequency
Phase error vs. frequency
0 % from 0 to 10kHz (± 4) % from 10kHz to 50kHz
(-0.5) to (-2.8) deg from 0 to 5kHz (-2.8) to (-6.6) deg from 5kHz to 10kHz
Frequency dependent amplitude and phase errors added to fixed range specifications.
Keyphasor /Speed Measurements:
3 Channel Speed Input (KPH) / Trigger Dynamic Sampling Card
Slot Position Slots 1 through 4
Accuracy 1 – 120k rpm, (+/- 0.00915)%
of Period Input, (+/- 11) rpm @ 120k rpm Input
Hardware Generated Spectra
Spectral Lines 6400, 3200, 1600, 800, 400, 200,
100 lines, selectable. One asynchronous spectrum per channel. Windowing provided on spectrum up to 800 lines, Rectangular, Hanning, Flat­Top, Exponential
Free Running Spectrum
Zoom Spectrum
Center Frequency
Zoom Factors 2, 5, 10, 20, 50
Spectral Lines 100, 200, 400, 800
2Dynamic Sampling Card Amplitude vs. Frequency Cumulative Error
1 per channel
1 asynchronous spectrum per channel.
Configurable in 1 Hz increments
Simulated Keyphasor Accuracy
Inputs
Total Inputs 3 speed inputs per card
Supported Transducers
Proximity inputs
Input Range -25 to +25 Vdc
Coupling AC or DC
1 – 120k rpm (+/- 0.02) % of Period Input
Keyphasor card not required to provide simulated Keyphasor (up to 6 simulated Keyphasors)
(single ended), maximum 2 cards per system.
Proximity, magnetic, or optical transducers. One “powered” optical input (Channel 3 only)
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ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
Input
128.9 kΩ
Impedance
Buffered Transducer
3 channels, user selectable output
Outputs
Output Types Raw, Analog Conditioned,
TTL ± 22V output maximum 20 µS min duty cycle for TTL output
Output
330Ω
Impedance
Output Drive
6100 pf (min)
Capacitance
Load Resistance ≥ 10k Ω
Output
Short circuit protected
Protection
Raw Outputs Amplitude and Delay
AC Error -0.91% to 0.42%
DC Error ± 60 mV
Signal Delay 0.66 µS (0.48 deg @ 2kHz)
Conditioned Outputs Amplitude and Delay
AC Error -1.05% to 0.39%
DC Error - 0.35 V to +60 mV
Direct Measurement
Filter values specified @ 0 db points
(KPH) Accuracy
Non-RMS, Non -Integrated Amplitude
AC Coupled ­High Mode
AC Coupled -
1.6 Hz to 20 kHz ± 1.25% of Full Scale Range
N/A
Low Mode
DC Coupled ­High Mode
1 Hz to 20 kHz ± 1% of Full Scale Range3± .011V below 1 V pp
DC Coupled ­Low Mode
0.167 Hz to 20 kHz ± 1% of Full Scale Range3± .011V below 1 V pp
Bandpass Measurement (KPH) Accuracy
Specifications are exclusive of filter corner settings and transition regions. Filter values for bandpass specified @ -3 db points
Non-RMS, Non ­Integrated
1 Hz to 20 kHz ± 1% of Full Scale Range
Amplitude
Gap Voltage (KPH) Measurements
Measurement Range
0 to 25 Vdc
-25 to 0 Vdc
-12.5 to 12.5 Vdc
-25 to 25 Vdc
3
3
Signal Delay 2.0 µS ( 4.0 µS Optical )
(1.4/2.8 deg @ 2kHz)
Transducer Power
-24 Vdc, 57.6 mA max (-
22.77 Vdc max, -24.48 Vdc min)
+24 Vdc, 29 mA max (+24.48Vdc max, +23.13Vdc min)
+5 Vdc, 250 mA max (+5.2 Vdc max, +4.25 Vdc min, optical transducer power, Channel 3 only)
Amplitude ± 0.20% of FSR @ -25 to 25 V
± 0.28% of FSR @ 0 to ± 25 V ± 0.28% of FSR @ -12.5 to 12.5 V (FSR = Full Scale Range)
Resolution Measured 381.47 µV @ 25 V
range
Response to 95%/99% of Final Value
Instantaneous Gap
0.95 / 1.59 sec.
-3db ± 5% @ 0.5 Hz
Average Gap 5.3 / 8.84 sec,
-3db ± 5% @ .09 Hz
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ADRE Sxp and 408 DSPi Datasheet 172179 Rev. AC
Status Types
Boot Status Self-test Over/Under Speed Activity Edge Pulse
Detection Error detection indicated if
change in rotative speed between consecutive Keyphasor pulses is greater than 25%, or shaft rotative speed is less than 1 rpm, or greater than 120k rpm
Keyphasor Index
While the shaft is stopped, the Keyphasor Index is used to assist with positioning a shaft relative to a reference position. Manual threshold must be selected for speeds below 1 rpm.
Triggering Automatic or Manual Mode
Selectable, positive or negative edge of signal input.
Duty Cycle
Maximum Trigger Error with Sine Wave Input
Input Multiplier / Divider
3
Speed Input KPH Card Amplitude
vs. Frequency Cumulative Error:
Amplitude error vs. frequency
Input ≤ 1kHz: < 0.5 deg, 1kHz – 20 kHz: < 1 deg
3 stages per input channel, 8 digits pre decimal, 12 digits post decimal per stage, configurable ratio or real number in software.
Frequency dependent amplitude and phase errors added to fixed range specifications.
+ 1% to (-1.5) % from 0.1Hz to 20kHz
Speed/Dynamic Frequency
DC Coupled: DC to 20kHz AC Coupled: 1Hz to 20kHz
Range
Auto Threshold
1 rpm – 120k rpm (0.0167 Hz – 2kHz), min voltage required at low freq
Manual Threshold
1 rpm to 120k rpm (0.0167 Hz to 2kHz) -25 Vdc to 25 Vdc,
0.10 Vdc increments
Input Clamping -25 to 25 Vdc, 0.01 V
increments, positive and negative
Waveform
Inverting or non-inverting
Transformation
Hysteresis 0.2 to 2.0 V, 0.2 V increments
0.2 to 1.0 V, 0.2 V increments (Optical )
AC Gain 1, 2, 5, 10
Minimum Input 1 μS pulse
Phase error vs. frequency
(-1.5) to (-2.5) deg from 0 to 2kHz (-2.5) to (-12) deg from 2kHz to 10kHz
Data Collection Trigger/Event
Triggers
Amplitude Any variable, “or”, per
channel. (amplitude, phase, nX, Direct, Bandpass, Gap, Process Variable)
Rpm Upper and lower level, per
speed input
Time User-programmable,
recurring, scheduled
External Contact
High or low voltage input , “normally open”, “normally closed” logic selectable in software
High Voltage 90 V to 240 V (AC or DC)
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