JYTEK USB-62405 User manual

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

ii

Preface iii
Preface
Copyright
This document contains proprietary information protected by copyright.
All rights are reserved. No part of this manual may be reproduced by
any mechanical, electronic, or other means in any form without prior
written permission of the manufacturer. All specifications are subject to
change without further notice.
Disclaimer
The information in this document is subject to change without prior
notice in order to improve reliability, design, and function and does not
represent a commitment on the part of the manufacturer.
In no event will the manufacturer be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use or inability
to use the product or documentation, even if advised of the possibility
of such damages.
Environmental Responsibility
JYTEK is committed to fulfill its social responsibility to global environ-
mental preservation through compliance with the European Union's
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
products are at their end of life, our customers are encouraged to dis-
pose of them in accordance with the product disposal and/or recovery
programs prescribed by their nation or company.
Trademarks
Product names mentioned herein are used for identification purposes
only and may be trademarks and/or registered trademarks of their
respective companies.

iv Preface
Conventions
Take note of the following conventions used throughout this manual to
make sure that users perform certain tasks and instructions properly.
NOTE:
NOTE:
Additional information, aids, and tips that help users perform tasks.
CAUTION:
Information to prevent minor physical injury, component damage,
data loss, and/or program corruption when trying to complete a
task.
WARNING:
Information to prevent serious physical injury, component damage,
data loss, and/or program corruption when trying to complete a
specific task.

Table of Contents v
Table of Contents
Preface .......................................................................................... iii
Table of Contents............................................................................ v
List of Figures................................................................................ vii
List of Tables .................................................................................. ix
1 Introduction.............................................................................. 1
1.1 Overview........................................................................................ 1
1.2 Features ......................................................................................... 1
1.3 Applications ................................................................................... 2
1.4 Specifications ................................................................................. 2
1.4.1 General Specifications .........................................................2
1.4.2 Analog Input (AI)..................................................................2
1.4.3 DC accuracy @25°C .............................................................3
1.4.4 AC Dynamic Performance (typical, 25°C) ............................3
1.4.5 Digital I/O.............................................................................5
1.5 Software Support........................................................................... 5
1.6 Driver Support for Windows.......................................................... 6
1.7 Utilities for Windows ..................................................................... 6
1.8 Overview and Dimensions ............................................................. 8
1.8.1 Module ................................................................................8
1.8.2 Module Stand ....................................................................10
1.9 Connections ................................................................................. 16
2 Getting Started ....................................................................... 17
2.1 Unpacking the USB-62405 ........................................................... 17
2.2 Connecting the USB-62405 Module ............................................ 17
2.3 Device ID ...................................................................................... 19
2.4 Device Mounting.......................................................................... 20

vi Table of Contents
2.4.1 Rail Mounting.................................................................... 20
2.4.2 Wall Mounting .................................................................. 23
2.5 Hardware Configuration.............................................................. 25
3 Operation ................................................................................ 27
3.1 Functional Layout ........................................................................ 27
3.2 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..................................................................... 31
3.2.5 Anti-Aliasing Filter and Frequency Response.................... 31
3.3 Triggering..................................................................................... 33
3.3.1 Analog Input Trigger Source.............................................. 33
3.4 Programmable Function I/O........................................................ 39
3.4.1 Static Digital Input/Output................................................ 39
3.4.2 Frequency Counter............................................................ 39
3.4.3 Pulse Output ..................................................................... 39
3.4.4 Digital Trigger IN for Continuous Analog Input ................. 40
3.4.5 Synchronization Sample Clock IN...................................... 40
4 Calibration ............................................................................... 41
4.1 Loading Calibration Constants..................................................... 41
4.2 Auto-Calibration .......................................................................... 41
4.3 Saving Calibration Constants....................................................... 42
Important Safety Instructions ....................................................... 43
Warranty Policy ............................................................................ 45
Getting Service ............................................................................. 47

List of Figures vii
List of Figures
Figure 1-1: U-Test Interface...................................................................7
Figure 1-2: USB-62405 Module Front View ...........................................9
Figure 1-3: USB-62405 Module Side View .............................................9
Figure 1-4: USB-62405 Module Rear View ..........................................10
Figure 1-5: Module, Stand, and USB Cable..........................................11
Figure 1-6: Module, Stand, & Wall Mount Kit Side View (w/ Connections)
12
Figure 1-7: Module In Stand Front View..............................................13
Figure 1-8: Module Stand Top View ....................................................14
Figure 1-9: Module Stand Side Cutaway View.....................................15
Figure 1-10: Module Stand Front View..................................................15
Figure 1-11: BNC Connector Polarity .....................................................16
Figure 2-1: USB-62405 Module in Windows Device Manager.............18
Figure 2-2: Device ID Selection Control ...............................................19
Figure 2-3: Rail Mount Kit....................................................................20
Figure 2-4: 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
Figure 3-4: Input Frequency Response for High Resolution Mode
(Fs=51.2kS/s) .....................................................................32
Figure 3-5: Input Frequency Response for High Speed Mode (Fs=102.4kS/
s) ........................................................................................33
Figure 3-6: Below-Low Analog Triggering............................................34
Figure 3-7: Above-High Analog Triggering...........................................35
Figure 3-8: Digital Triggering ...............................................................35
Figure 3-9: Post Trigger without Retrigger ..........................................36
Figure 3-10: Pre-trigger Mode Operation (valid trigger only) ...............36
Figure 3-11: Pre-trigger Mode Operation (w/ invalid trigger) ...............37
Figure 3-12: Delay-Trigger Mode Operation..........................................37
Figure 3-13: Middle-Trigger Acquisition ................................................38
Figure 3-14: Gated Trigger.....................................................................38

viii List of Figures
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List of Tables ix
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

x List of Tables
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Introduction 1
1 Introduction
1.1 Overview
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.
The USB-62405 delivers high precision DC and dynamic measurement
performance with very low temperature drift. The onboard 24-bit
Sigma-Delta ADC supports anti-aliasing, which suppresses modulator
and signal out-of-band noise and provides usable signal bandwidth of
the Nyquist rate, making it ideal for high dynamic range signal measure-
ment in vibration and acoustic applications.
The USB-62405 supports digital and analog trigger sources and flexible
trigger modes, including post, delay, middle, gated, and pre-triggering,
which acquires data efficiently without post processing. The USB-62405
is USB bus powered and equipped with BNC connectors and removable
spring terminals for easy device connectivity.
1.2 Features
Hi-Speed USB 2.0
USB bus powered
24-bit Sigma-Delta ADC with built-in anti-aliasing filter
4-CH simultaneous sampling analog input, up to 128kS/s
AC or DC input coupling, software selectable
Analog or digital triggering
Supports 2mA excitation output on each analog input channel for
IEPE sensor measurement
Full auto-calibration
Ready-to-use testing application (U-Test) provided

2 Introduction
1.3 Applications
Vibration testing
Machine condition monitoring
Acoustic measurement
Environmental noise analysis
1.4 Specifications
1.4.1 General Specifications
1.4.2 Analog Input (AI)
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
Power requirement USB power (5 V @ 400 mA)
Operating environment Ambient temperature: 0 to 55°C
Relative humidity: 10% to 90%, non-condensing
Storage environment Ambient temperature: -20 to 70 °C
Relative humidity: 5% to 95%, non-condensing
Channels 4 (simultaneous-sampling)
ADC resolution 24-bit
ADC type Delta-sigma
Sampling rate 1kHz to 128kHz
Input range ±10V
FIFO buffer size 8kS across all channel
Input configuration Differential or pseudo-differential
Input impedance 200 kΩ between positive input and
negative input
16.93 kΩ between negative input and
chassis ground
Input coupling AC or DC, software selectable

Introduction 3
1.4.3 DC accuracy @25°C
1.4.4 AC Dynamic Performance (typical, 25°C)
THD, THD+N (Vin = 8.9 Vpk)
CMRR
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
transfer mode)
Offset Error (mV) Gain Error (%)
Typical ±0.15mV ±0.15mV
Maximum ±0.3mV ±0.3%
Input Configuration Input Signal
Frequency (fin) THD THD+N
Differential 20Hz to 20kHz -94dB -91 dB
20Hz to 46.4kHz -89 dB -88 dB
Pseudo-differential 20Hz to 20kHz -92 dB -88 dB
20Hz to 46.4kHz -85 dB -85 dB
AC (20Hz to 1kHz) 60 dB

4 Introduction
Bandwidth
Flatness
Crosstalk
System Noise
SFDR (Vin = -1 dBFS)
Dynamic Range (Vin = -60 dBFS)
-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
Input Signal Frequency (fin)Flatness
20Hz to 20kHz ±0.01 dB
20Hz to 46.4kHz ±0.15 dB
Input Signal Frequency (fin)Crosstalk
1kHz -102 dB
46.4kHz -95 dB
Measurement Bandwidth AI Noise
High Resolution (< 52.734kHz) 50 µVrms
High Speed Mode (52.734 kHz to 128kHz) 65 µVrms
Input Signal Frequency (fin)SFDR
1kHz 104 dB
Input Signal Frequency (fin)Dynamic
Range
1kHz 100 dB

Introduction 5
1.4.5 Digital I/O
1.5 Software Support
JYTEK provides comprehensive software drivers and packages to suit
various user approaches to system building. In addition to programming
libraries, such as DLLs, for most Windows-based systems, JYTEK also pro-
vides drivers for application environments such as LabVIEW® and MAT-
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.
1.6 Driver Support for Windows
UD-DASK
UD-DASK is composed of advanced 32/64-bit kernel drivers for custom-
ized DAQ application development. USB-DASK enables you to perform
Channels 2 programmable function I/O
Compatibility 3.3V / TTL (single-ended)
Initial status Input (pulled low)
Input voltage Logic low: VIL = 0.8 V max; IIL = 0.2 mA max.
Logic high: VIH = 2.0 V min.; IIH = 0.2 mA max.
Output voltage Logic low: VOL = 0.8 V max; IIL = 0.2 mA max.
Logic high: VOH = 2.0 V min.; IIH = 24 mA max.
Over-voltage
protection
-2V to +7V
Supporting
modes (only one
can be selected
and function at a
time, see
Section 3.4:
Programmable
Function I/O
• Static digital input/output
• PWM output, max. frequency: 4 MHz
• Frequency/Event counter, max. frequency:
4MHz
• Digital trigger IN
• Synchronization sample clock IN, max. fre-
quency: 128kHz
Data Transfer Programmed I/O

6 Introduction
detailed operations and achieve superior performance and reliability
from your data acquisition system. DASK kernel drivers now support
Windows 7/Vista® OS. Please note that only UD-DASK versions
1.2.2.0627 and later can support the USB-62405 module.
DAQPilot
DAQPilot is a task-oriented Software Development Kit, supporting
ActiveX Controls/.NET Assembly, Express VI and Polymorphic VI for Lab-
VIEW and DAQ Toolbox for MATLAB.
You can download and install DAQPilot at:
http://www.jytek.com
Please note that only DAQPilot versions 2.6.1.0628 and later can sup-
port the USB-62405.
1.7 Utilities 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.

Introduction 7
Figure 1-1: U-Test Interface
Table 1-1: U-Test Interface Legend
You can download and install U-Test at: http://www.jytek.com/
A Main Menu
B Device Viewer
C AI Data View & AO, DIO Control Panel
D Analog Input Configuration
A
B
C
D

8 Introduction
1.8 Overview and Dimensions
1.8.1 Module
NOTE:
NOTE:
All dimensions shown are in millimeters (mm)

Introduction 9
Figure 1-2: USB-62405 Module Front View
Figure 1-3: USB-62405 Module Side View

10 Introduction
Figure 1-4: USB-62405 Module Rear View
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