JYTEK USB-62401 User manual

Advance Technologies; Automate the World.
Manual Rev.: 1.00
Revision Date: Aug 27, 2017
USB-62401
24-bit 2kS/s USB 2.0-Based Universal Input
DAQ 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 General Analog Input...........................................................2
1.4.3 Analog Input Electrical.........................................................4
1.4.4 Digital Input/Output ............................................................7
1.5 Software Support........................................................................... 8
1.6 Driver Support for Windows.......................................................... 8
1.7 Utilities for Windows ................................................................... 10
1.8 Overview and Dimensions ........................................................... 11
1.8.1 Module ..............................................................................11
1.8.2 Module Stand ....................................................................14
1.9 Connector Information ................................................................ 18
2 Getting Started ....................................................................... 21
2.1 Connecting the USB-62401 Module ............................................ 21
2.2 Device ID ...................................................................................... 22
2.3 Hardware Configuration .............................................................. 23
2.4 Device Mounting.......................................................................... 23
2.4.1 Rail Mounting ....................................................................23

vi Table of Contents
2.4.2 Wall Mounting .................................................................. 25
3 Operation ................................................................................ 27
3.1 Functional Layout ........................................................................ 27
3.2 Signal Sources.............................................................................. 27
3.2.1 Floating Signal Source ....................................................... 27
3.2.2 Ground-Referenced Signal Source .................................... 28
3.3 Signal Connection........................................................................ 28
3.3.1 Voltage Input Mode .......................................................... 28
3.3.2 Current Input Mode .......................................................... 29
3.3.3 Full Bridge and Half Bridge Input Mode............................ 30
3.3.4 Thermocouple Input Mode ............................................... 31
3.3.5 RTD Input Mode ................................................................ 32
3.3.6 Wire Resistance Mode ...................................................... 34
3.4 AI Data Format ............................................................................ 35
3.5 ADC Sampling Rate ...................................................................... 36
3.5.1 Software Polling Data Transfer (Non-Buffering Programmed I/
O)....................................................................................... 36
3.5.2 Continuous Acquisition Mode........................................... 37
3.6 Programmable Function I/O........................................................ 37
3.6.1 TTL DI/DO .......................................................................... 37
3.6.2 General Purpose Timer/Counter....................................... 38
3.6.3 General Purpose Timer/Counter Modes........................... 39
4 Calibration ............................................................................... 45
Important Safety Instructions ....................................................... 47
Warranty Policy ............................................................................ 49
Getting Service ............................................................................. 51

List of Figures vii
List of Figures
Figure 1-1: U-Test Interface.................................................................10
Figure 1-2: USB-62401 Module Rear View ..........................................11
Figure 1-3: USB-62401 Module Side View ...........................................12
Figure 1-4: USB-62401 Module Front View .........................................13
Figure 1-5: Module, Stand, Connector, and USB Cable .......................14
Figure 1-6: Module, Stand, & Wall Mount Kit Side View (w/ Connections)
14
Figure 1-7: Module In Stand Front View..............................................15
Figure 1-8: Module Stand Top View ....................................................16
Figure 1-9: Module Stand Side Cutaway View.....................................17
Figure 1-10: Module Stand Front View..................................................17
Figure 2-1: USB-62401 Module in Windows Device Manager.............21
Figure 2-2: Device ID Selection Control ...............................................22
Figure 2-3: Rail Mount Kit....................................................................23
Figure 2-4: Module Pre-Rail Mounting ................................................24
Figure 2-5: Module Rail-Mounted .......................................................24
Figure 2-6: Wall Mount Holes..............................................................25
Figure 2-7: Module with Wall Mount Apparatus.................................25
Figure 3-1: USB-62401 Functional Block Diagram ...............................27
Figure 3-2: Ground-Referenced Source and Differential Input ...........28
Figure 3-3: Floating Source and Differential Input ..............................29
Figure 3-4: Current Source Connection ...............................................30
Figure 3-5: Full Bridge and Half Bridge Connection.............................31
Figure 3-6: Thermocouple Connection ................................................32
Figure 3-7: 4-Wire RTD Connection .....................................................33
Figure 3-8: 3-Wire RTD Connection .....................................................33
Figure 3-9: 2-wire RTD Connection......................................................34
Figure 3-10: 2-Wire Resistance Connection ..........................................35
Figure 3-11: Mode 1-Simple Gated-Event Calculation ..........................39
Figure 3-12: Mode 2-Single Period Measurement ................................40
Figure 3-13: Mode 3-Single Pulse-Width Measurement .......................41
Figure 3-14: Mode 4-Single-Gated Pulse ...............................................41
Figure 3-15: Mode 5-Single-Triggered Pulse..........................................42
Figure 3-16: Mode 6-Re-Triggered Single Pulse.....................................42
Figure 3-17: Mode 7-Single-Triggered Continuous Pulse ......................43
Figure 3-18: Mode 8-Continuous Gated Pulse.......................................43
Figure 3-19: Mode 9-Edge Separation Measurement ...........................44
Figure 3-20: Mode 10-PWM Output......................................................44

viii List of Figures
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List of Tables ix
List of Tables
Table 1-1: U-Test Interface Legend..........................................................10
Table 1-2: USB-62401 Pin Assignment .....................................................18
Table 1-3: I/O Signal Description..............................................................19
Table 3-1: Analog Input Range and Output Digital Code .........................35
Table 3-2: Analog Input Range and Output Digital Code (cont’d)............36
Table 3-3: TTL Digital I/O Pin Definition...................................................37
Table 3-4: Timer/Counter Pin Definition..................................................38

x List of Tables
This page intentionally left blank.

Introduction 1
1 Introduction
1.1 Overview
The USB-62401 is a 24-bit, 4-channel simultaneous-sampling universal
input USB DAQ module featuring built-in signal conditioning and direct
measurement of commonly used sensors, including current output
transducers, thermocouple, RTD, load cell, strain gauge, and resistance.
Individual channels can be programmed to measure different signal
types.
The USB-powered USB-62401 is equipped with removable screw-down
terminals for easy device connectivity, and the included multi-functional
stand fully supports desktop, rail, or wall mounting.
The USB-62401 is suitable for basic measurement applications requiring
high resolution and accuracy, laboratory research and material testing
environments, and industrial temperature measurement. U-Test, a free
ready-to-use testing program is included to enable operation or testing
of all JYTEK USB DAQ series functions with no programming require-
ments.
1.2 Features
High-speed USB 2.0
USB powered
4-CH simultaneous-sampling analog input
Built-in signal conditioning for high voltage/current/thermocou-
ple/RTD/strain gauge/load cell/resistance measurement
Sample rate from 20 S/s to 2 kS/s
Functional digital I/O
Removable screw-down terminal
Lockable USB cable for secure connectivity
Ready-to-use testing application (U-Test) provided

2 Introduction
1.3 Applications
Automotive testing
Laboratory research
Biotech measurement
I/O control
1.4 Specifications
1.4.1 General Specifications
1.4.2 General Analog Input
Physical, Power, and Operating Environment
Interface High speed USB 2.0 compatible, mini-USB connector
Dimensions 156 (L) x 114 (W) x 41 (H) mm (6.14 X 4.49 X 1.61 in.)
I/O Connector Two 20-pin removable screw-down 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
General
Number of channels: 4 differential input (simultaneous-sampling)
Sampling rate (sample/sec) 20, 40, 80, 160, 320, 500, 1000, 2000
Resolution 24-bit
Input coupling DC
Input mode and range
Input range or
supporting type
Actual input range
Voltage ±25V
±12.5V
±2.5V
±312.5mV
±25V
±12.5V
±2.5V
±312.5mV
Current ±20mA 2.5V

Introduction 3
Thermocouple K, J, N, R, S, B, T, E 78.125mV
RTD (3-wire, 4-wire) Pt 100, Pt 1000 2.5V
Half-Bridge (120Ω, 350Ω) Max. 30mV/V 78.125mV
Full-Bridge (120Ω, 350Ω) Max. 30mV/V 78.125mV
2-Wire Resistance 30kΩ 2.5V
Excitation voltage 2.5V (for half/full-bridge mode only)
Excitation current 0.5mA for RTD mode
0.05mA for Resistance mode
Cold junction compensation
(CJC) accuracy
± 0.5°C (after 15 minute warmup)
Operational common mode
voltage range
Voltage input mode: Vcm+Vpp/2? input range
(25V/12.5V/2.5V/ 0.3125V)
Current input mode: Vcm ?24V
Overvoltage protection Power on:
Voltage input mode: 30V
Current input mode: 60mA
Sensor input mode enable: no protection
Sensor input mode disable: 30V
Excitation voltage (EX+) and AGND: no
protection
FIFO buffer size 4k samples
Data transfers Programmed I/O, continuous (bulk transfer
mode)
Input impedance 1.009MΩ for voltage input mode
249.5Ω for current input mode

4 Introduction
1.4.3 Analog Input Electrical
Temperature Draft @20SPS, in ppm/°C
Temperature Draft @160SPS, in ppm/°C
Mode Gain drift Offset drift
Voltage (±25V) 1.389055871 0.043023355
Voltage (±12.5V) 1.37552178 0.075556565
Voltage (±2.5V) 1.662727273 0.030882956
Voltage (±312.5mV) 21.92878977 0.110084412
Current (±20mA) 3.270369091 0.282946284
Full-bridge 28.00370355 30.90013157
Half-bridge 33.48025514 1.750342188
Thermocouple 62.9978196 0.164409864
2-wire RTD 2.842575758 0.522492944
3-wire RTD 2.879839489 0.258840329
4-wire RTD 2.902723485 0.018656382
2-wire resistance 3.026166667 0.03246755
Mode Gain drift Offset drift
Voltage (±25V) 1.533312973 0.084457938
Voltage (±12.5V) 1.520465436 0.134715279
Voltage (±2.5V) 1.732148674 0.054557101
Voltage (±312.5mV) 20.94809375 0.130828487
Current (±20mA) 3.488472439 0.305882921
Full-bridge 26.72626394 17.74701205
Half-bridge 35.27328612 1.748929398

Introduction 5
Temperature Draft @2000SPS, in ppm/°C
Thermocouple 105.3142618 0.193622785
2-wire RTD 2.965409564 0.512440163
3-wire RTD 2.996320076 0.240909456
4-wire RTD 2.854513258 0.086721521
2-wire resistance 3.40709375 0.06209485
Mode Gain drift Offset drift
Voltage (±25V) 1.620950284 0.105635778
Voltage (±12.5V) 1.584251894 0.11027477
Voltage (±2.5V) 1.701225379 0.067356314
Voltage (±312.5mV) 20.52684091 0.113061874
Current (±20mA) 3.771356399 0.338399386
Full-bridge 30.71138027 50.00179464
Half-bridge 35.58911174 1.862124485
Thermocouple 117.7077884 0.435895845
2-wire RTD 3.047327178 0.452466872
3-wire RTD 3.124556345 0.189605804
4-wire RTD 3.216423295 0.088365093
2-wire resistance 3.386921402 0.04574323
Mode Gain drift Offset drift

6 Introduction
System Noise, in LSB (Typical, 25°C): 20 SPS to 160 SPS
System Noise, in LSB (Typical, 25°C): 320 SPS to 2000 SPS
Mode Sampling Rate (SPS)
20 40 80 160
Voltage (±25V) 9.443641 13.58713513 22.225423 47.06011713
Voltage (±12.5V) 10.45022375 15.55506725 23.934448 50.668689
Voltage (±2.5V) 8.941254375 12.75718938 19.522499 46.11391238
Voltage
(±312.5mV) 11.115466 15.1842875 19.108748 39.44412825
Current (±20mA) 29.50086975 33.76906888 39.179197 53.86180763
Full/Half-bridge 58.669068 33.97045388 41.628525 67.98029188
Thermocouple 28.24161013 41.73502813 51.59679 76.21635225
2-wire RTD 8.00126525 11.64115513 16.869046 33.30653975
3-wire RTD 8.407154625 12.01619113 16.528028 33.69525963
4-wire RTD 9.043779125 12.47814688 16.762287 45.44077163
2-wire resistance 9.318955625 13.208205 18.829651 43.74764375
Mode Sampling Rate (SPS)
320 640 1000 2000
Voltage (±25V) 72.508028 142.60307 71.11201 119.26144
Voltage (±12.5V) 81.44560913 139.01469 77.924207 128.36732
Voltage (±2.5V) 66.64280488 136.24263 71.915341 122.92882
Voltage
(±312.5mV) 48.83473638 79.888989 86.157589 128.4315
Current (±20mA) 77.58907738 131.06695 80.416917 126.239
Full/Half-bridge 92.8294875 144.14509 175.67111 202.15501

Introduction 7
1.4.4 Digital Input/Output
Thermocouple 107.9735725 143.46202 198.49927 202.17693
2-wire RTD 44.53668125 77.870435 71.369319 127.45831
3-wire RTD 42.00570563 87.738238 72.70806 123.21166
4-wire RTD 72.2785775 155.50389 72.168651 123.65813
2-wire resistance 72.76746238 153.9091 71.566314 122.28421
I/O Specifications
Number of channels 4-CH programmable function digital input (DI)
2-CH programmable function digital output
(DO)
Compatibility TTL (single-end) (supports 3.3V and 5 V DI but 3.3V
DO)
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 = 0.5 V max; IOL = 10 mA max.
Logic high: VOH = 2.6V min.; IIH = 10 mA max.
Supporting modes (only one
can be selected and function
at the same time, please see
Section 4.6: Programmable
Function I/O)
4-CH TTL DI and 2-CH TTL DO
1-CH 32-bit general-purpose
timer/counters:
Clock source: internal or exter-
nal
Max source frequency: inter-
nal: 80 MHz; external: 10 MHz
1-CH PWM outputs:
Duty cycle:1-99% (please see
Section 4.6.3: Mode 10: PWM
Output) Modulation fre-
quency: 20 MHz to 0.005Hz
Data transfers Programmed I/O
Mode Sampling Rate (SPS)

8 Introduction
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 other application environments such as LabVIEW® and
MATLAB®. JYTEK also provides ActiveX component ware for measure-
ment and SCADA/HMI, and breakthrough proprietary software. All soft-
ware options are on the website:www.jytek.com.
Be sure to install the driver & utility before using the USB-62401 mod-
ule.
1.6 Driver Support for Windows
1.6.1 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
detailed operations and achieve superior performance and reliability
from your data acquisition system. DASK kernel drivers now support
Windows 7/Vista® OS.
1.6.2 DAQPilot
DAQPilot is a SDK with a graphics-driven interface for various application
development environments. DAQPilot represents JYTEK's commitment
to full support of its comprehensive line of data acquisition products and
is designed for the novice to the most experienced programmer.
As a task-oriented DAQ driver, SDK and wizard for Windows systems,
DAQPilot helps you shorten development time while accelerating the
learning curve for data acquisition programming.
You can download and install DAQPilot at:
http://www.jytek.com/
Please note that only DAQPilot versions 2.3.0.712 and later can support
the USB-62401.

Introduction 9
1.7 Utilities for Windows
1.7.1 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.
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

10 Introduction
1.8 Overview and Dimensions
1.8.1 Module
Figure 1-2: USB-62401 Module Rear View
NOTE:
NOTE:
All dimensions shown are in millimeters (mm)