Dataq DI-4718B Manuale utente

The way PC-based instrumentation should be

DI-4718B

8-Channel USB or Ethernet Data Logger for DI-8B Modules

User's Manual

Manual Revision B

DATAQ Instruments, Inc., except as otherwise indicated and shall not be reproduced, transmitted, transcribed, stored

in a retrieval system, or translated into any human or computer language, in any form or by any means, electronic,

mechanical, magnetic, optical, chemical, manual, or otherwise without expressed written authorization from the com-

pany. The distribution of this material outside the company may occur only as authorized by the company in writing.

DATAQ Instruments' hardware and software products are not designed to be used in the diagnosis and treatment of

humans, nor are they to be used as critical components in any life-support systems whose failure to perform can rea-

sonably be expected to cause significant injury to humans.

DATAQ Instruments, Inc.

241 Springside Drive

Akron, Ohio 44333 U.S.A.

Telephone: 330-668-1444

Fax: 330-666-5434

Designed and manufactured in the

United States of America

iii

Warranty and Service Policy

Product Warranty

DATAQ Instruments, Inc. warrants that this hardware will be free from defects in materials and workmanship under

normal use and service for a period of 1 year from the date of shipment. DATAQ Instruments' obligations under this

warranty shall not arise until the defective material is shipped freight prepaid to DATAQ Instruments. The only

responsibility of DATAQ Instruments under this warranty is to repair or replace, at its discretion and on a free of

charge basis, the defective material.

This warranty does not extend to products that have been repaired or altered by persons other than DATAQ Instru-

ments employees, or products that have been subjected to misuse, neglect, improper installation, or accident.

DATAQ Instruments shall have no liability for incidental or consequential damages of any kind arising out of the

sale, installation, or use of its products.

Service Policy

1. All products returned to DATAQ Instruments for service, regardless of warranty status, must be on a freight-pre-

paid basis.

2. DATAQ Instruments will repair or replace any defective product within 5 days of its receipt.

3. For in-warranty repairs, DATAQ Instruments will return repaired items to the buyer freight prepaid. Out of war-

ranty repairs will be returned with freight prepaid and added to the service invoice.

DI-4718B Series Hardware Manual

Table of Contents

Warranty and Service Policy ................................................................................................................ iii

1. Introduction ........................................................................................................................................ 1

Features .............................................................................................................................................. 1

Analog Inputs .................................................................................................................................... 1

Digital I/O .......................................................................................................................................... 1

Software ............................................................................................................................................. 2

WinDaq® Recording and Playback Software ............................................................................ 2

Help ............................................................................................................................................. 2

2. Specifications ...................................................................................................................................... 3

3. Installation .......................................................................................................................................... 7

Install WinDaq Software and the WinDaq Dashboard ...................................................................... 7

Software Installation .......................................................................................................................... 7

4. Instrument Controls, Indicators, and Connections ........................................................................ 9

Instrument Front Panel ...................................................................................................................... 9

Signal Connections ..................................................................................................................... 9

Installing DI-8B Modules .................................................................................................................. 10

Enabling CJC for Thermocouple Modules ........................................................................................ 11

Connecting Signals ............................................................................................................................ 12

Low-pass Filter ........................................................................................................................... 12

Resolution as a Function of Sample Rate ................................................................................... 13

Built-In Remote Control Jack ..................................................................................................... 14

WinDaq Remote Events ....................................................................................................... 14

WinDaq Remote Storage ...................................................................................................... 15

General Purpose Digital Inputs ............................................................................................ 15

Instrument Rear Panel ....................................................................................................................... 16

Power Input Jack ......................................................................................................................... 16

Ground Lug ................................................................................................................................. 16

Ethernet Port ............................................................................................................................... 16

Mini-B USB Port ........................................................................................................................ 16

USB Drive Port ........................................................................................................................... 16

Status LED .................................................................................................................................. 16

Control Button ............................................................................................................................. 17

Control Button Operations ................................................................................................................. 17

Record Data to USB Thumb Drive ............................................................................................. 17

Stop Recording to USB Thumb Drive ........................................................................................ 17

Fix Errors .................................................................................................................................... 17

Switching between LibUSB and CDC Modes ............................................................................ 17

Save Ethernet and Stand-alone Configuration to Thumb Drive ................................................. 17

Apply Ethernet and Stand-alone Configuration to Device ......................................................... 18

Mode LED Indicator .......................................................................................................................... 18

WinDaq Dashboard ........................................................................................................................... 20

ChannelStretch™ ............................................................................................................................... 21

Connection .................................................................................................................................. 22

Channel Selection ....................................................................................................................... 23

5. Unlock WinDaq .................................................................................................................................. 25

DI-4718B Series Hardware Manual

Table of Contents

6. Dimensional Drawing ......................................................................................................................... 27

7. DI-8B Modules .................................................................................................................................... 29

DI-8B30/31 Analog Voltage Input Modules, 3Hz Bandwidth .......................................................... 29

DI-8B32 Analog Current Input Modules ........................................................................................... 30

DI-8B33 True RMS Input Modules ................................................................................................... 31

DI-8B34 Linearized 2- or 3-Wire RTD Input Modules ..................................................................... 32

DI-8B35 Linearized 4-Wire RTD Input Modules ............................................................................. 33

DI-8B36 Potentiometer Input Modules ............................................................................................. 34

DI-8B38 Strain Gage Input Modules, Narrow & Wide Bandwidth .................................................. 35

DI-8B40/41 Analog Voltage Input Modules, 1kHz Bandwidth ........................................................ 36

DI-8B42 2-Wire Transmitter Interface Modules ............................................................................... 37

DI-8B43 DC LVDT Input Modules .................................................................................................. 38

DI-8B45 Frequency Input Modules ................................................................................................... 39

DI-8B47 Linearized Thermocouple Input Modules .......................................................................... 40

DI-8B50/51 Analog Voltage Input Modules, 20kHz Bandwidth ...................................................... 41

DI-4718B Series Hardware Manual

Introduction

1. Introduction

This manual contains information designed to familiarize you with the features and functions of the DI-4718B data

acquisition systems.

Features

DI-4718B series instruments are extremely versatile with multiple interface options, high resolution, expandability

with ChannelStretch™, and fast throughput rates. Features include:

• Accepts up to 8 DI-8B amplifier modules accommodating virtually any industrial signal.

• USB, Ethernet, and Power over Ethernet (PoE) interface options.

• Ethernet models can be used as USB devices.

• Up to 16-bit measurement resolution.

• Up to 160,000 Samples per second maximum throughput rate.

• Adaptable low-pass filter per channel - corner frequency set as a function of sampling rate.

• A multi-purpose push-button for WINDAQ remote events and start/stop recording.

• LED indication for easy notification of device status.

• Free WinDaq/Lite data acquisition recording and playback software.

• ChannelStretch™ Technology allows you to sync up to 16 DI-1120, DI-4108, DI-4208, or DI-4718B instruments

in any combination (requires same communications interface) with a total throughput of 480,000 samples per

second throughput, or more (requires unlock code for each device).*

• Stand-alone option allows the user to configure a recording session through their PC then record data in the field

to removable flash memory via the USB drive port (without being connected to their PC). ChannelStretch™ not

supported in stand-alone mode. Stand-alone data logging requires Unlock code to record more than 1 channel to

removable flash memory.

• Included .Net Class supports programming under any .Net programming language.*

• Fully documented instrument protocol for programming the device in operating systems other than Windows.

*WinDaq/Unlock required per device to use ChannelStretch™ when using WinDaq software. These restrictions do

not apply when programming the device yourself. ChannelStretch is not supported when recording to removable

flash memory.

Analog Inputs

DI-4718B models provide 8 fixed analog inputs designed specifically for DI-8B amplifiers that allow your analog

signals to be converted into 12 to 16-bit digital data via an on board A/D converter.

Utilize the functionality of WINDAQ software to experience all the features in these versatile instruments. An Unlock

Code is required to synchronize multiple units when using WinDaq software. There are no restrictions when pro-

gramming the instruments yourself. An unlock code is also required to record more than a single channel to remov-

able flash memory.

Digital I/O

The DI-4718B provides two digital input channels for Remote Control Operations (Remote Start/Stop and Remote

Events) that may be accessed using the Built-In Remote Control Jack (see “Built-In Remote Control Jack” on

DI-4718B Series Hardware Manual

Introduction

page 14). Remote Control configuration and setup is easily accessible in both WINDAQ Acquisition software and in

the Dataq Instruments Hardware Manager (when configuring the instrument for Stand-alone operation).

Software

All software required to record and playback waveforms is included with the purchase of any DI-4718B data acquisi-

tion system. Software is located on the USB thumb drive included with your instrument or via the internet at

run.dataq.com.

WINDAQ®Recording and Playback Software

WINDAQ Acquisition and WINDAQ Waveform Browser allow you to record and playback data acquired through your

instrument. WINDAQ software is an invaluable resource to record and analyze your data and is available for free from

our web site (www.dataq.com).

WINDAQ Lite Data Acquisition software (free) can be used to record waveforms directly and continuously to disk

while monitoring a real time display of the waveforms on-screen. It operates, displays, and records data in real time

when connected to your PC. An optional unlock code is available to sync multiple units into a single WinDaq file.

WINDAQ Waveform Browser playback software (also known as “WWB”) offers an easy way to review and analyze

acquired waveforms. A built-in data file translator allows the user to display multiple waveforms acquired by

WINDAQ Acquisition software or any of a wide range of data acquisition packages. The software’s disk-streaming

design allows data files of any length to be graphically displayed rapidly, in normal or reverse time directions. Seven

standard cursor-based measurements, frequency domain, and statistical analysis functions help simplify waveform

analysis and interpretation. WINDAQ Waveform Browser is free and installed when installing WINDAQ Software.

Help

All WINDAQ software utilizes context-sensitive help. Help may be accessed through the Help menu or by pressing

the F1 key with any pull-down menu item selected. This will take you directly to the Help topic most relevant to that

particular function or feature. Help topics discuss in detail each function available in the software.

DI-4718B Series Hardware Manual

Specifications

2. Specifications

Analog Inputs

Number of Channels: 8 configured for signal conditioned inputs

Channel Configuration: Defined by DI-8B Module

Measurement range per channel: Defined by DI-8B Module

Accuracy: ±0.25% FSR (at 1800 S/s, averaging mode)

Input impedance: Defined by DI-8B Module

Input offset voltage: Defined by DI-8B Module

Channel-to-channel crosstalk rejection:

-75db @ 100Ω unbalance

Offset temperature coefficient: 0.25µV/°C

Digital filtering: Standard: Conditional over-sampling

Stand-alone: None

CJC Error: 1.5°C plus 8B Module

Isolation (via DI-8B Modules)

Input-to-Output: 1000VDC/Peak AC

Channel-to-Channel: 500VDC/Peak AC

Digital Inputs

Ports: 2

Maximum drain voltage: 25 V

Maximum sink current: 100 mA

Reserved Digital Inputs: D0: WinDaq Remote Events

D1: WinDaq Remote Start/Stop

A/D Characteristics

Type: Successive approximation

Resolution: 12 to 16-bit

Conversion Time: 69.4µs

Scanning Characteristics

Max. throughput sample rate: Standard: 160 kHz

Stand-alone: 20 kHz to 160 kHz (dependent on flash memory)

Min. throughput sample rate: Standard: 20 Hz (2.2 samples per hour with WinDaq)

Stand-alone: 0.0017 Hz

Sample Rate Timing Accuracy: 50 ppm

Max. scan list size: 9 entries

Sample buffer size: 2kb

DI-4718B Series Hardware Manual

Specifications

Calibration

Calibration cycle: One year

Ethernet Interface

Type: 10/100Base-T

Connector: RJ-45

Protocol: TCP/IP

Server Type: DHCP or Fixed IP

Removable Memory

Type: MLC, pSLC, or SLC flash memory (with USB SD card reader); USB

thumb drive

Required Format: FAT32

Number of Channels: 1; Unlock code required for 2 or more

Rear Panel Indicators, Connections, and Controls

Button: Multi-function control (Start, Stop, Save Configuration, Apply Configu-

ration)

USB A Connector (Drive): USB drive for Stand-alone data logging

Cannot be used concurrently with the USB interface

Ground Lug: Terminal for Ground

Status LED: One multicolor LED for status indication

Power Connector: USB: 9 to 36 VDC, 2 watts + 8B modules

Ethernet: 9 to 36 VDC, 2.5 watts + 8B modules

Ethernet Connector: RJ45; Optional PoE

Front Panel Connections

Input connectors: Two, removable sixteen position terminal blocks, 28 AWG min, 16

AWG max

Radio Jack: Standard 3.5 mm for remote control signals

USB ChannelStretch™ Operation

Total Max Units: 16

Max Channel Count: 128 Analog, 112 Digital

Max Throughput: ≥480 kHz (higher speeds may result in data loss)

Synchronization Conditions: Syncs with any combination of DI-1120, DI-4108, and DI-4208 USB

instruments.

All synced instruments must operate at the same sample rate per channel,

regardless of channel number, type, or range.

All instruments must be connected to the same USB controller. The use

of USB hubs are recommended to meet this requirement.

Ethernet ChannelStretch™ Operation

Total Max Units: 16

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