JYTEK USB-62405 User Manual

Usb 2.0-based dynamic signal acquisition module
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USB 2.0-based Dynamic Signal Acquisition Module
Manual Rev.:
Revision Date:
Advance Technologies; Automate the World.
USB-62405
User's Manual
1.00
July 5, 2017

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Summary of Contents for JYTEK USB-62405

  • Page 1 USB-62405 USB 2.0-based Dynamic Signal Acquisition Module User’s Manual Manual Rev.: 1.00 Revision Date: July 5, 2017 Advance Technologies; Automate the World.
  • Page 3 Restriction of Hazardous Substances (RoHS) directive and Waste Electri- cal and Electronic Equipment (WEEE) directive. Environmental protec- tion is a top priority for JYTEK. We have enforced measures to ensure that our products, manufacturing processes, components, and raw materials have as little impact on the environment as possible. When...
  • Page 4 Conventions Take note of the following conventions used throughout this manual to make sure that users perform certain tasks and instructions properly. Additional information, aids, and tips that help users perform tasks. NOTE: NOTE: Information to prevent minor physical injury, component damage, data loss, and/or program corruption when trying to complete a task.
  • Page 5: Table Of Contents

    Overview and Dimensions ............. 8 1.8.1 Module ................8 1.8.2 Module Stand ..............10 Connections ................. 16 2 Getting Started ............... 17 Unpacking the USB-62405 ............17 Connecting the USB-62405 Module ..........17 Device ID ..................19 Device Mounting................20 Table of Contents...
  • Page 6 2.4.1 Rail Mounting..............20 2.4.2 Wall Mounting ..............23 Hardware Configuration.............. 25 3 Operation ................27 Functional Layout ................ 27 Analog Input ................28 3.2.1 Analog Input Front End Configuration ......28 3.2.2 AI Data Format ..............29 3.2.3 Sampling Rate ..............30 3.2.4 Data Transfer..............
  • Page 7: List Of Figures

    Module Pre-Rail Mounting ..........21 Figure 2-5: Module Rail-Mounted ............22 Figure 2-6: Wall Mount Holes..............23 Figure 2-7: USB-62405 Module with Wall Mount Apparatus ....24 Figure 3-1: USB-62405 Functional Block Diagram .......27 Figure 3-2: USB-62405 Analog Front End ..........28 Figure 3-3: Excitation Current for IEPE Sensor Measurement.....29...
  • Page 8 This page intentionally left blank. viii List of Figures...
  • Page 9: List Of Tables

    List of Tables Table 1-1: U-Test Interface Legend ............7 Table 3-1: Signal Source-Card Configuration ...........28 Table 3-2: USB-62405 Input Ranges............30 List of Tables...
  • Page 10 This page intentionally left blank. List of Tables...
  • Page 11: Introduction

    The USB-62405 is a 24-bit high-performance dynamic signal acquisition USB module, equipped with 4 simultaneous-sampling analog input channels sampling up to 128 kS/s per channel. The USB-62405 also fea- tures software selectable AC or DC coupling input configuration, and built-in high precision 2 mA excitation current to measure integrated electronic piezoelectric (IEPE) sensors such as accelerometers and microphones.
  • Page 12: Applications

    Applications Vibration testing  Machine condition monitoring  Acoustic measurement  Environmental noise analysis  Specifications 1.4.1 General Specifications Physical, Power, and Operating Environment Interface Hi Speed USB 2.0 compatible, mini-USB connector Dimensions 156.5 (L) x 114 (W) x 41.3 (H) mm (6.16 X 4.49 X 1.63 in.) I/O Connector Four BNC connectors and 4-pin removable spring terminals...
  • Page 13: Dc Accuracy @25°C

    Integrated electronic piezoelectric (IEPE) Current: 2 mA or 0 mA, software selectable IEPE compliance: 24V Over-voltage protection ±60V Input common mode range ±10V Trigger source Analog or digital, software selectable Trigger mode Post trigger, delay trigger, middle trigger, gated trigger, pre-trigger, post or delay trigger with re-triggering Data transfer Programmed I/O, continuous (bulk...
  • Page 14 Bandwidth -3dB bandwidth 0.49 x fs (where fs is sampling rate) AC cut-off frequency (-3dB) 0.4 Hz AC cut-off frequency (-0.1dB) 2.4 Hz Flatness Input Signal Frequency (f Flatness 20Hz to 20kHz ±0.01 dB 20Hz to 46.4kHz ±0.15 dB Crosstalk Input Signal Frequency (f Crosstalk 1kHz...
  • Page 15: Digital I/O

    LAB®. JYTEK also provide ActiveXcomponent ware for measurement and SCADA/HMI, and breakthrough proprietary software. All software options are on the websit: http://www.jytek.com Be sure to install the driver & utility before using the USB-62405 mod- ule. Driver Support for Windows...
  • Page 16: Driver Support For Windows

    U-Test U-Test is a free and ready-to-use utility which can assist instant testing and operation of all JYTEK USB DAQ series functions with no program- ming. In addition to providing data collection and monitoring functions, U-Test also supports basic FFT analysis and provides direct control of analog output and digital I/O with a user-friendly interface.
  • Page 17: Figure 1-1: U-Test Interface

    Figure 1-1: U-Test Interface Main Menu Device Viewer AI Data View & AO, DIO Control Panel Analog Input Configuration Table 1-1: U-Test Interface Legend You can download and install U-Test at: http://www.jytek.com/ Introduction...
  • Page 18: Overview And Dimensions

    Overview and Dimensions All dimensions shown are in millimeters (mm) NOTE: NOTE: 1.8.1 Module Introduction...
  • Page 19: Figure 1-2: Usb-62405 Module Front View

    Figure 1-2: USB-62405 Module Front View Figure 1-3: USB-62405 Module Side View Introduction...
  • Page 20: Module Stand

    1.8.2 Module Stand The multi-function USB-62405 stand is compatible with desk, rail, or wall mounting. To fix the module in the stand, slide the module body into the stand until a click is heard. To remove the module from the stand, twist...
  • Page 21: Figure 1-5: Module, Stand, And Usb Cable

    the bottom of the stand in a back-and forth motion and separate from the module. Figure 1-5: Module, Stand, and USB Cable Introduction...
  • Page 22: Figure 1-6: Module, Stand, & Wall Mount Kit Side View (W/ Connections)

    Figure 1-6: Module, Stand, & Wall Mount Kit Side View (w/ Connections) Introduction...
  • Page 23: Figure 1-7: Module In Stand Front View

    Figure 1-7: Module In Stand Front View Introduction...
  • Page 24: Figure 1-8: Module Stand Top View

    20.4 20.4 Figure 1-8: Module Stand Top View Introduction...
  • Page 25: Figure 1-9: Module Stand Side Cutaway View

    Figure 1-9: Module Stand Side Cutaway View Figure 1-10: Module Stand Front View Introduction...
  • Page 26: Connections

    Connections The USB-62405 module is equipped with four BNC connectors and one 4-pin removable spring terminal connector, with pin assignment as labeled. BNC connector polarity is as shown. Positive (+) Negative (-) Figure 1-11: BNC Connector Polarity Introduction...
  • Page 27: Getting Started

    Windows for driver support information. WARNING: 1. Turn on the computer. 2. Connect the USB-62405 module to one USB 2.0 port on the computer using the included USB cable. 3. The first time the USB-62405 module is connected, a New Hardware message appears.
  • Page 28: Figure 2-1: Usb-62405 Module In Windows Device Manager

    USB DAQ module changes from amber to green and the New Hardware message closes. 4. The USB-62405 module can now be located in the hardware Device Manager, as shown. Figure 2-1: USB-62405 Module in Windows Device Manager If the USB-62405 module cannot be detected, the power provided by the USB port may be insufficient.
  • Page 29: Device Id

    A rotary control on the rear of the module (as shown) controls device ID setting and can be set from 0 to 7. The device ID allows dedicated con- trol of the USB-62405 module irrespective of the connected USB port. When more than one USB module of the same type is connected, each must be set to a different ID to avoid conflicts and errors in operation.
  • Page 30: Device Mounting

    Device Mounting 2.4.1 Rail Mounting The multi-function stand can be mounted on the DIN rail using the rail-mount kit as shown. Figure 2-3: Rail Mount Kit Getting Started...
  • Page 31: Figure 2-4: Module Pre-Rail Mounting

    Figure 2-4: Module Pre-Rail Mounting Getting Started...
  • Page 32: Figure 2-5: Module Rail-Mounted

    Figure 2-5: Module Rail-Mounted Getting Started...
  • Page 33: Wall Mounting

    2.4.2 Wall Mounting The multi-function stand can be fixed to a wall using four flush head screws as shown. The four screw holes should be approximately 3.4 mm in diameter. Figure 2-6: Wall Mount Holes Getting Started...
  • Page 34: Figure 2-7: Usb-62405 Module With Wall Mount Apparatus

    Figure 2-7: USB-62405 Module with Wall Mount Apparatus Getting Started...
  • Page 35: Hardware Configuration

    Hardware Configuration All remaining hardware configurations are software programmable, including sampling/update rate, input/output channel, input range, and others. Please see the UD-DASK Function Reference manual for details. Getting Started...
  • Page 36 This page intentionally left blank. Getting Started...
  • Page 37: Operation

    Operation Operation of the USB-62405 is described here to assist in configuration and programming of the module. Functions addressed include analog input and GPIO. Functional Layout The USB-62405 is equipped with four simultaneous-sampling analog input channels and two general-purpose digital I/Os (GPIO).
  • Page 38: Analog Input

    Circuit Switch circuit Circuit Figure 3-2: USB-62405 Analog Front End Input Configuration: Differential/Pseudo-Differential Differential input mode provides anode and cathode inputs of the BNC connector that respond to signal voltage differences therebetween. If the signal source is ground-referenced, the differential input mode can be used for common-mode noise rejection.
  • Page 39: Ai Data Format

    USB-62405 provides an excitation current source. The excitation current is 2 mA for the IEPE sensors, with DC voltage off- set generated because of the excitation current and sensor impedance. When enabling IEPE current sources, the USB-62405 automatically sets input configuration to AC coupling. Constant...
  • Page 40: Sampling Rate

    USB-62405 are as follows, with data format 2’s complement. Bipolar Analog Description Digital Code Input Range Full-scale Range ±10V Least significant bit 1.19uV FSR-1LSB 9.99999881V 7FFFFFh Midscale +1LSB 1.19uV 000001h Midscale 000000h Midscale –1LSB -1.19uV...
  • Page 41: Anti-Aliasing Filter And Frequency Response

    ADC provides 100dB attenuation of frequencies that begin just beyond the passband and continue out to ADC over-sampling rate. The USB-62405 provides an anti-aliasing, low-pass, simple RC filter in front of the ADC inputs to limit possible high amplitude out-of-band signals and noise.
  • Page 42: Figure 3-4: Input Frequency Response For High Resolution Mode

    −3dB Bandwidth (Fs = 51.2KS/s) X: 25 −5 Y: −2.058 −10 −15 −20 −25 −30 −35 Input Signal Frequency (kHz) Figure 3-4: Input Frequency Response for High Resolution Mode (Fs=51.2kS/s) Operation...
  • Page 43: Triggering

    Figure 3-5: Input Frequency Response for High Speed Mode (Fs=102.4kS/s) Triggering The USB-62405 supports flexible trigger sources and trigger modes for analog input functionality. The trigger source can originate with soft- ware command, external analog, or external digital signal in continuous analog input mode.
  • Page 44: Figure 3-6: Below-Low Analog Triggering

    External Analog Trigger The analog multiplexer can select one input channel as the analog trig- ger source. That is, one of 4 input channels can be selected as the analog trigger source. An external analog trigger occurs when the analog trigger signal crosses above (above high) or below (below low) the pre-defined voltage level.
  • Page 45: Figure 3-7: Above-High Analog Triggering

    An external digital trigger occurs when a rising or falling edge is detected on the digital signal connected to the GPIO pin. Trigger polarity can be programmed using JYTEK software drivers. Signal level of the external digital trigger signals should be 3/3V/TTL-compatible, with a minimum pulse of 20ns.
  • Page 46: Figure 3-9: Post Trigger Without Retrigger

    Post-Trigger Acquisition Mode (no retrigger) Post-trigger acquisition is indicated in applications where data is to be collected after a trigger event, as shown. Trigger Event Occurs Operation Acquisition stop Acquisition start start Begin to transfer data to system Time Trigger Data N samples Figure 3-9: Post Trigger without Retrigger...
  • Page 47: Figure 3-11: Pre-Trigger Mode Operation (W/ Invalid Trigger)

    The trigger event occurs after the specified amount of data has been acquired. However, if the trigger event occurs before the specified amount of data has been acquired, the acquisition engine ignores the trigger signal until the specified amount of data has been acquired, as shown.
  • Page 48: Figure 3-13: Middle-Trigger Acquisition

    and after trigger event can be set individually (M and N samples), as shown. Please note that M+N must be equal to or less than 8k samples for all analog input channels, and that the trigger event can only be accepted when the specified amount of data has been acquired (M sam- ples), otherwise the trigger event will be ignored.
  • Page 49: Programmable Function I/O

    Programmable Function I/O The USB-62405 supports powerful programmable I/O function provided by an FPGA chip, configurable as static digital input/output, 32-bit fre- quency counters, pulse output, synchronization sample clock IN, and trigger IN. These signals are single-ended and 3.3 V/ TTL-compliant.
  • Page 50: Digital Trigger In For Continuous Analog Input

    Timebase Pulse initial Pulse length Pulse length Duty Pulse initial Pulse length 3.4.4 Digital Trigger IN for Continuous Analog Input The GPIO can be programmed as the digital trigger source for continu- ous analog input acquisition. Please see External Digital Triggering for details.
  • Page 51: Calibration

    Since measurement errors may vary depending on time and tempera- ture, it is recommended that the USB-62405 module be calibrated in the existing testing environment, as follows. Auto-Calibration The USB-62405 module should be warmed up for at least 15 minutes before initiating auto-calibration.
  • Page 52: Saving Calibration Constants

    Saving Calibration Constants Factory-calibrated constants are permanently stored in a bank of the onboard EEPROM and cannot be modified. When the device is recali- brated through auto-calibration, the software stores the new constants in a user-configurable section of the EEPROM. To restore original factory calibration settings, the software can copy the factory-calibrated con- stants to the user-configurable section of the EEPROM.
  • Page 53: Important Safety Instructions

    Important Safety Instructions For user safety, please read and follow all instructions, WARNINGS, CAUTIONS, and NOTES marked in this manual and on the associated equipment before handling/operating the equipment. Read these safety instructions carefully.  Keep this user’s manual for future reference. ...
  • Page 54 Never attempt to fix the equipment. Equipment should only be  serviced by qualified personnel. A Lithium-type battery may be provided for uninterrupted, backup or emergency power. Risk of explosion if battery is replaced with an incorrect type; please dispose of used batteries appropriately. WARNING: Equipment must be serviced by authorized technicians when: ...
  • Page 55: Warranty Policy

    Warranty Policy Thank you for choosing JYTEK. To understand your rights and enjoy all the after-sales services we offer, please read the following carefully. 1. All JYTEK products come with a limited two-year warranty: The warranty period starts on the day the product is shipped ...
  • Page 56 2. Our repair service is not covered by JYTEK's guarantee in the following situations: Damage caused by not following instructions in the User's  Manual. Damage caused by carelessness on the user's part during  product transportation. Damage caused by fire, earthquakes, floods, lightening, pollu- ...
  • Page 57: Getting Service

    Getting Service Customer satisfaction is our top priority. Contact us should you require any service or assistance. SHANGHAI JYTEK CO.,LTD. Web Site http://www.jytek.com Sales & Service service@jytek.com Telephone No. +86-21-50475899 Fax No. +86-21-50475899 Mailing Address 300 Fang chun Rd., Zhangjiang Hi-Tech Park,...
  • Page 58 Getting Service...

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