IOtech 655u User Manual
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IOtech 655u User Manual

Dynamic signal analyzers for vibration analysis and monitoring
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USER'S MANUAL
652u
655u
and
Dynamic Signal Analyzers for
Vibration Analysis and Monitoring
IOtech
25971 Cannon Road
Cleveland, OH 44146-1833
(440) 439-4091
Fax: (440) 439-4093
*372562B-01*
sales@iotech.com
productsupport@iotech.com
372562B-01
1177-0901 rev 2.0
www.iotech.com

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  • Page 1 USER’S MANUAL 652u 655u Dynamic Signal Analyzers for Vibration Analysis and Monitoring IOtech 25971 Cannon Road Cleveland, OH 44146-1833 (440) 439-4091 Fax: (440) 439-4093 *372562B-01* sales@iotech.com productsupport@iotech.com 372562B-01 1177-0901 rev 2.0 www.iotech.com...
  • Page 2 IOtech cannot be held liable for any damages resulting from the use or misuse of this product. Copyright, Trademark, and Licensing Notice All IOtech documentation, software, and hardware are copyright with all rights reserved. No part of this product may be copied, reproduced or transmitted by any mechanical, photographic, electronic, or other method without IOtech’s prior written consent.
  • Page 3 Programs group, which can be accessed from the Windows Desktop. Initial navigation is as follows: Start [on Desktop]  Programs  IOtech … You can also access the PDF documents directly from the data acquisition CD by using the <View PDFs> button located on the opening screen.

  • Page 4: Table Of Contents

    #6-32 Machine Screw (chassis to earth ground)…… 3-4 USB2.0 …… 3-4 LED Indicators …… 3-4 5 Channel TC / RTD Connector (655u only) …… 3-4 Chapter 4 – CE Compliance and Noise Considerations Overview …… 4-1 CE Standards and Directives …… 4-1 Safety Conditions ……4-2...
  • Page 5 Step 2 - Connect the 652u [or 655u] to Power and to the Computer Supply power from the TR-2U to the 652u [or 655u] before connecting the USB cable to the computer. This allows the unit to inform the host computer (upon connection of the USB cable) that the hardware requires minimal power from the computer’s USB port.
  • Page 6 If there is insufficient power the LED will go off. The “Active” LED is on whenever active communication is taking place between 652u [or 655u] and the host PC. It will be on solid during data acquisitions.
  • Page 7 The 652u / 655u architecture is such that there is virtually no limit to the length of time continuous data can be acquired. The only limitation is the amount of available hard disk memory on the host PC, or that which can be accessed by a PC on a network.
  • Page 8 Analog Channel Triggering Pre- and Post-Trigger Readings Reference Notes: For information regarding 655u connections for temperature measurement, refer to chapter 3. For information regarding software, refer to chapter 5. What are the IOtech 652u and 655u? IOtech 652u and 655u User’s Manual...

  • Page 9: Chapter 2 - Block Diagram

    Block Diagram IOtech 652u and 655u Block Diagram ** See page 2-2 for temperature channel block diagram. IOtech 652u and 655u User’s Manual Block Diagram 878091...
  • Page 10 This temperature channel block diagram applies only to the 655u. The 5 channel TC / RTD removable connector connects to the rear panel of the 655u. Temperature Channel Block Diagram (655u only) *The gray block for temperature channel 1 (TEMP. CH 1) is also representative of the remaining four temperature channels.
  • Page 11 LEDs Active The Active LED is on whenever active communication is taking place between the 652u [or 655u] and the host PC. Note that the Active LED will be on solid during a data acquisition. Power The “Power” LED blinks during device detection and initialization; then remains on solid as long as the module has power.

  • Page 12: Front Panel (Analog) Connectors

    5 Channel TC / RTD Connector (655u only) …… 3-4 Front Panel (Analog) Connectors Front Panel – Aside from the model number, the 652u and 655u front panels look the same Introduction The front panel includes ten BNC connectors for voltage input. These are labeled CH1 through CH10. The front panel also includes analog common.

  • Page 13: Current Source (Iepe) With Transducer Fault Detection

    Analog Triggers The IOtech 652u and 655u signal analyzers can be triggered per software configuration relevant to the 10 analog input channels. Refer to the associated software documentation regarding the various types of triggers and how to set them.

  • Page 14: Rear Pannel Connectors And Indicators

    Note: For Connector Shell Information see page 3-6. The rear panels of both the 652u and 655u include, from left to right: an External Power connector, DB9-Digital I/O port, USB2.0 connector, a #6-32 chassis ground, and two status LEDs (ACTIVE and POWER). In addition, the rear panel of the 655u includes a 24 pin removable block connector that provides a means of connecting up to 5 thermocouples, RTDs, or a combination of the two.

  • Page 15: Machine Screw (Chassis To Earth Ground)

    1, -3, and -5 are 1m, 3m, and 5m in length, respectively. The IOtech 652u and 655u both transfer acquired data to the PC via USB. When a computer has a board with USB 2.0 ports, an “Enhanced” USB controller can be found in the Device Manager. The Device Manager will also show two other USB controllers due to the fact that USB2.0 circuitry includes 3 chips [one for the actual USB2.0 capable devices and two...
  • Page 16 The following diagram is applicable to 655u only. The 652u cannot accept temperature connections. The 5-channel connector block is of the “tension clamp” type. To insert a wire, complete the following steps: 1) Ensure the wire is in the 28 gauge to 16 gauge range. 5-22AWG is optimum.
  • Page 17 Place the shell-hood over the lower Hole-plate assembly. It will snap into place. 4. Connect the TC connector to the TC connection receptacle on the rear panel Connect to 655u of the 655u. Connectors, Indicators, and Cables 652u & 655u Users Manual 989490...

  • Page 18: Overview

    CE Standards and Directives …… 4-1 Safety Conditions ……4-2 Emissions/Immunity Conditions ……4-3 CE Rules of Thumb for 652u and 655u …… 4-3 Noise Considerations …… 4-4 Overview CE compliant products bear the “CE” mark and include a Declaration of Conformity stating the particular specifications and conditions that apply.

  • Page 19: Safety Conditions

    Voltages above 30 Vrms or ±60 VDC must not be applied if any condensation has formed on the device. Current and power use must not exceed specifications. Do not defeat fuses or other over-current protection. CE-Compliance & Noise Considerations 652u and 655u User’s Manual 917891...

  • Page 20: Emissions/Immunity Conditions

    CE Rules of Thumb for 652u and 655u IOtech 652u and 655u are CE Compliant at the time they leave the factory and should remain in compliance as long as the conditions stated on the Declaration of Conformity continue to be met.

  • Page 21: Noise Considerations

    Make a solid earth ground connection. Using insulated low resistance wire, connect the 652u [or 655u] chassis (via the rear panel #6-32 machine screw) to solid earth ground. This practice accomplishes the following: (a) keeps radiated emissions low by keeping the chassis electrically quiet,...
  • Page 22 Non-Destructive Test Software …… 5-5 eZ-NDT ** This chapter offers a glimpse of the eZ software packages that can be used with an IOtech 600 series device, with exceptions as noted. The software is usually purchased when the hardware is ordered; but should your acquisition needs change, additional software packages can be ordered at a later time.

  • Page 23: Ez-Analyst

    This software adds real-time continuous and transient data acquisition to an IOtech 600 series system. Analysis can be in the time, frequency, or order domain.

  • Page 24: Ez-Tomas

    An IOtech 600 series system running with eZ-TOMAS can be easily moved from machine to machine with very short setup times. You can use the system to reduce downtime, improve data collection, troubleshoot, and recondition the machine.

  • Page 25: Ez-Balance

    Rotating Machine Balancing An IOtech 600 series system using eZ-Balance provides a solution for multi-plane field balance applications of rotating machinery. eZ-Balance computes the optimal balance weights and their locations, based on vibration data collected from the analyzer. The data is displayed in a convenient Polar plot that indicates the magnitude and phase of the unbalance as well as time and spectrum data.

  • Page 26: Ez-Ndt

    (non-destructive test) uses resonance to identify part variations caused by process inconsistencies and defects. Using eZ-NDT with an IOtech 600 series device is a fast and inexpensive method for performing 100% inspection of production parts. Inspection parts include, but are not limited to: powder metal, ceramics, and composites.

  • Page 27: Chapter 6 - Product Care And Customer Support

    ESD bags and cartons, and related procedures. Product Care IOtech 652u and 655u are essentially maintenance free and require only a minimal amount of care. The 652u and 655u should be treated much like any other high-tech piece of equipment. In general: The units should be operated in ventilated and relatively dust-free environments.

  • Page 28: Readme Files And The Install Cd-Rom

    Note: Before calling for assistance, take a few minutes to read all parts of the manual that may be relevant to the problem. Also, please review the troubleshooting material. You can reach IOtech by one of the following means: Phone:...
  • Page 29 Figure 2. Measurement Delay vs. Frequency, DC-Coupled Figure 3. Measurement Delay vs. Frequency, AC-Coupled Note: For 655u — To ensure accurate temperature measurements allow the 655u to acclimate itself to ambient temperature prior to acquiring data. IOtech 652u & 655u User’s Manual Specifications 7.a-1...
  • Page 30 Frequency (µV rms) (Hz) 1000 2000 5000 10000 20000 40000 aximum noise @ <50°C = 1.4x; @> 50°C = 2.1x (where x is the typical value given in the above table). 7.a-2 Specifications IOtech 652u & 655u User’s Manual 978090...
  • Page 31 ±3V DC or rms AC Channels may be of mixed type; different TC types and/or RTD Thermocouples: 655u TC Measurement Uncertainty (1 sigma °C, Ambient 23°C, ±15°C, exclusive of TC wire error) Measured Temperature (°C) TC Type -200...
  • Page 32 Specifications are subject to change without notice. Calibration Notes Factory calibration of 652u and 655u was conducted with the units in their standard operating upright horizontal position, with the chassis cover clear of other devices and objects. For 655u thermocouple calibration, 5-22 AWG wires were used.
  • Page 33 Low: < 0.8V High: >3.0V with no load Note: A Digital I/O example is located in section 7.b. Figure 13. Digital I/O I-V Curve Output timing: Outputs are always written asynchronously. IOtech 652u & 655u User’s Manual Specifications 7.a-5 978090...
  • Page 34 Fig. 10 Phase-Matching vs. Frequency, AC-Coupled ………. Fig. 11 Typical CMRR …………………………………………… Fig. 12 Digital I/O I-V Curve …………………………………….. Fig. 13 Fig. 1 Measurement High Pass Filter Response 0.01 0.10 1.00 10.00 Frequency IOtech 652u and 655u User’s Manual Specificati 957091...
  • Page 35 -1.5E-6 -2.0E-6 10000 20000 30000 40000 50000 Frequency (Hz) Fig. 3 Measurement Delay vs Frequency AC-Coupled 5.0E-6 4.0E-6 3.0E-6 2.0E-6 1.0E-6 000.0E+0 10000 20000 30000 40000 50000 Frequency (Hz) 7.b-2 Specifications, Plotted Data IOtech 652u and 655u User’s Manual 917791...
  • Page 36 Sample Rate = 26368 samples per second -100 -120 2,000,000 4,000,000 6,000,000 8,000,000 10,000,000 Frequency (Hz) Fig. 5 Antialiasing Filter & Analog Input Circuit Response 1,000 10,000 100,000 1,000,000 10,000,000 Frequency IOtech 652u and 655u User’s Manual Specifications, Plotted Data 7.b-3 917791...

  • Page 37: High Frequency Artifacts

    6,000 7,000 8,000 9,000 10,000 Frequency (kHz) Fig. 7 Measurement THD+N ________ DC Coupled - - - - - - AC Coupled -100 -105 -110 1,000 10,000 100,000 Frequency 7.b-4 Specifications, Plotted Data IOtech 652u and 655u User’s Manual 917791...

  • Page 38: Analog Measurement Flatness

    0.02 -0.02 -0.04 Ch 1 Ch 2 Ch 3 -0.06 Ch 4 -0.08 Specification limit -0.1 1000 10000 100000 Frequency Full-Scale is +29dBV; Input is -30dBV Fig. 9 SFDR IOtech 652u and 655u User’s Manual Specifications, Plotted Data 7.b-5 917791...
  • Page 39 Legend Format (aggressor - victim) Fig. 11 Phase Matching vs Frequency, AC-Coupled Comparison of phase differences Spec among five channels of a representative unit -0.5 -1.0 Spec -1.5 1,000 10,000 100,000 Frequency (Hz) 7.b-6 Specifications, Plotted Data IOtech 652u and 655u User’s Manual 917791...

  • Page 40: Fig. 12

    & hollow symbol = DC coupled thick line solid symbol = AC coupled -100 -120 1,000 10,000 100,000 Frequency Fig. 13 Digital I/O I-V Curve Digital Output Digital Output High Digital Input Volts IOtech 652u and 655u User’s Manual Specifications, Plotted Data 7.b-7 917791...
  • Page 41 You will see the device listed as 652u or 655u, as applicable. You can now change the device name from the 652u [or 655u] default to a “friendly” name. 1. Right-click on the device name (preceding figure). This opens its properties dialog box.

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