数据采集系统说明书:di-1100

DI-1100 Low-cost USB Data Acquisition (DAQ) System9 Four armored analog differential inputs9 Up to ±100 V without damage9 Fixed measurement range of ±10 V full scale9 12-bit analog-to-digital resolution9 20 kHz per channel with all four channels enabled9 Two digital input ports support WinDaq software:9 Remote event trigger9 Remote stop/start recording9 Wide-ranging software support includes:9 Ready-to-run WinDaq software9 .NET Class for Visual Studio program development9 Published protocol for software development in non-Windows operating systems

Hardware Overview

The DI-1100 is a new release in a long line of low-cost starter kits from DATAQ Instruments. It’s an updated replacement and alternative

for the DI-145 USB data acquisition starter le for measuring preamplified analog signals, the DI-1100 in tandem with the included WinDaq software allows real time data

acquisition, playback, and analysis performance equal to or better than other products that cost many times its low price. Predecessors of

this instrument have been sold to over 35,000 hobbyists and professionals for countless data acquisition applications around the world.

The DI-1100 continues this legacy with a higher resolution and faster ADC than its predecessor while retaining its noise-cancelling dif-ferential analog inputs that are level-protected to ±100 VDC or peak AC. This is our fastest, most flexible, and value-oriented starter kit

ever. The DI-1100 offers four analog input and two discrete (digital) input channels. The analog inputs offer a fixed measurement range of

±10VFS, and are multiplexed to an integrated 12-bit ADC. Digital inputs are protected to ±30 V dc. Sample rates as slow as 20 Hz and as

fast as 40 kHz with a single enabled channel are re Overview

Model DI-1100 starter kit is provided with comprehensive software support. For point-and-click, ready-to-run applications the DI-1100

is supplied with our popular WinDaq software. WinDaq allows a real time display of any combination of analog channels and the ability

to stream acquired data to disk in recorder-like fashion, even at the fastest rate supported by the hardware. This is true streaming perfor-mance, continuous, without gaps, and simultaneously to both the real time display and disk. Record only a few readings, or as many as

4 GB. The DI-1100’s two digital inputs are dedicated for remote stop/start and remote event operations using WinDaq software. WinDaq

also includes software to review recorded data files, including waveform analysis and data file export to Microsoft Excel and other mes, you need a more focused application. Consider a production application where an instrument makes the same measurements

and generates the same results repeatedly. This situation defines the need for a custom program, and the DI-1100 supplies the tools you

need to get it done. For Windows applications a .Net class is provided that accesses all DI-1100 measurement features. It’s provided with

a comprehensive example program that can act as the foundation for your unique application. For operating systems other than Windows

the DI-1100’s device protocol is fully Event push-buttonTrigger events either from the remote event inputs

(through WinDaq software) or by pushing this IndicationPower LED indicates power is LED indicates the device is recording to l LED indicates use of a digital ad

Mounting EarsBulkhead

Mounting EarsMini-B USB connectionAnalog In Channels 1-4±10VFS, ±100V transient edNo ConnectionDigital In ChannelsFor Remote Start/Stop using WinDaqScrew terminals for signal 2 330-668-1444

Four Analog Input ChannelsMeasure as many as four system variables at once with a fixed

±10 V full scale Digital Input PortsAllows remote control of WinDaq’s stop/start recording and event

marker functions. Each port is protected to ±30 V dc.

Differential Analog Input Configuration12-bit Measurement Resolution

Enhanced noise immunity and common mode volt tolerance.

Yields measurement resolution of ±4.8 mV across its ±10 V

ts 4-20 mA MeasurementsProcess current (current loop) measurements are possible using an

external shunt resistor (model R250 sold separately.)USB-poweredArmored Inputs Absorb MistakesThe instrument is powered directly from the connected USB port

to eliminate the need for clumsy external power analog and digital inputs are protected to ±100 and ±30 V dc

Comprehensive Programming Supportrespectively.

The instrument is offered with a comprehensive .Net class for the

Windows programming environment. Its device protocol is fully

Fast Analog Channel Sample Ratedocumented for use with operating systems other than Windows.

Observe fast phenomena that other products in the DI-1100’s

price range would miss. Maximum sample rate per channel is a

Ready-to-run Software Supportfunction of the number of enabled channels:Provided with ready-to-run WinDaq software for point-and-click

DAQ performance with a real time display, disk-streaming record-Enabled ChannelsSample Rate per Channeling, and playback and analysis.

140 kHz23430 kHz24 kHz20 kHzDI-1100 Dimensional Drawing1.612"Ø 0.200"(2 places)2.625"0.750"4.250"4.750"5.500"330-668-1444 3

Analog InputDigital Input PortRef+3.3V1MAIN10K20KDigital InAIN1M10K1M1M10K+1.5V10KThe DI-1100 maintains an internal scan list of as many as four different items at once. The scan list provide an internal menu of

the analog channels to be scanned. It operates at any desired throughput rate, and allows multi-channel analog measurements to

synchronize, independent of operating system and other latencies.

ItemAnalog channelsScan List PositionsUp to fourCommentsOne scan list position is consumed for each enabled analog channel330-668-1444 4

Four analog input channels with a fixed measurement range of ±10 V full scale are supported by the DI-1100. Though not isolated

inputs, each offers differential input capability with some rejection of common mode voltages (those that appear simultaneously

and in-phase on both inputs.) These channels are also hardened to tolerate excessive voltages to protect against wiring mishaps (see

specifications).

Traditional Chart Recorder ReplacementDigitize and record measurements from instruments with high-level analog outputs. Examples of “Equipment” include gas

chromatographs, liquid chromatographs, spectrometers, bio-amplifiers*, entPCModel DI-1110Model DI-1100-Analog Out±10VFS+Data Acquisition Starter +-+-+-+-+-+-USB Cable(8 more analog input channels as needed)Any Windows-compatible computer

see specifications for supported

Operating Systems* 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 reasonably be expected to cause injury to 5 330-668-1444

(continued)Process MonitoringTrend plot and record control and feedback signals to troubleshoot process l and Feedback Signals(±V, 4-20mA*)PLCProcessData Acquisition Starter KitModel +-+-+-+-+-+-USB Cable*Model R250 resistor required for 4-20mA outputsModel DI-1100Any Windows-compatible computer

see specifications for supported

Operating SystemsTypical Analog Measurements4-20mA current (low-side shunt)Voltage sourceSource*Optional (see ordering guide)330-668-1444 6

The DI-1100 supports several methods to increase measurement flexibility and data record interpretation. The remote record feature

allows you to synchronize WinDaq recordings to external processes by remotely enabling and disabling WinDaq’s stream-to-disk

feature. Remote events allow you to insert an event marker in the data stream (see inset) to identify when an event occurred relative to

recorded waveform activity. Events can be activated by the pushbutton on the DI-1100 enclosure, though a keyboard keystroke (which

also allows you to record a description), or remotely via the remote event input. The stream-to-disk function can also be controlled

through the keyboard, or through the remote record input. Valid remote record and event signals are switch closures, or discrete levels

with a maximum input of ±30 V with TTL trigger thresholds. The DI-1100 provides two digital input ports. Each is armored to tolerate

up to ±30 V without damage. In addition, each port is internally pulled-up, so it’s easy to use with external dry-contact 30V MaxTTL Threshold0VEventData Acquisition Starter KPowerModel ervedSwitch Closure+Remote ControlEventRecordTTL or

Switch

Closure-+-Event Marker330-668-1444 7

SetupDouble-click and enter the channels you want to acquire into the

Define calibration per channel to display waveform values in

WinDaq scan list. Click to select signal averaging, true RMS,

meaningful units such as psi, °F or °C, amps, rpm, watts, horse-frequency, and peak or valley detection per channel. Click to

power — any unit of measure you a single to 4-channel display — either triggered sweep

(oscilloscope-like) or scrolling (chart recorder-like). Click again

to define a sample rate ranging from one sample every 2.2 hours to

20 kHz per channel with all four channels enabled.

CalibrateRecordChoose a continuous waveform recording mode or the triggered

mode with selectable trigger level, slope, and post-trigger times.

WinDaq automatically time- and date-stamps, then streams

acquired data to disk — record as much data as you need. At the

same time, WinDaq supplies a real-time graphical display of any

or all channels so you always know where you are and where

you’re teOf course, you can label any channel with text that describes

it — “Motor 1,” “Engine speed,” “Vertical position,” etc. But

WinDaq also allows you to supply commented event markers

while you record — “Beginning test phase 1,” “Small vibrations

noticed,” “Starting cool-down cycle,” etc. Your comments and

our acquired data combine to form a complete diary of your data

acquisition session.330-668-1444 8

PlaybackRecording is only half the solution. WinDaq’s

Waveform Browser

Double your productivity and let WinDaq record while you review

last week’s results from your spreadsheet, or compose a memo

playback software allows you to graphically manipulate wave-with your word processor. You can even play back data already

forms in ways you’ve never seen on a PC. Compress an entire

recording to one screen-width for a bird’s eye view, then expand

stored to disk while you’re still recording.

around an area of interest for a closer look. Use the cursor to

measure amplitudes and timing with precision. Move to any event

marker with the click of a mouse askAnalyzeWaveform interpretation is easy with our built-in analysis func-tions. Apply frequency and filtering analysis with the WinDaq

Waveform Browser FFT and DFT functions. Analyze any range

of waveform data with the statistics function. Use X-Y plotting to

examine the relationship of one channel to another. Optional Ad-vanced CODAS analysis functions allow waveform peak detec-tion, integration, differentiation, arithmetic operations, and The WinDaq

Waveform Browser can export any range of data

to your spreadsheet, or any other analysis or presentation pack-age you use. You can even copy a graphical image displayed by

the WinDaq

Waveform Browser and paste it directly into a word

processing document. Finally, export any range of waveform

graphics to your printer for a hard copy 9 330-668-1444

Sometimes you can’t use a ready-to-run application like WinDaq. You need to develop your own software to perform in precisely

the way you need. That requirement defines the need for programming support, and we provide the tools necessary for you to move

forward with a program that is uniquely your own.

Included .NET Class

Microsoft’s object-oriented programming languages commonly referred to as .NET (“Dot Net”) offer a powerful environment for

developing custom applications for the DI-1100. All of the .NET languages are supported by our included class library, which supports

all DI-1100 features. Well commented example programs exercise every aspect of the hardware, forming a foundation for you to get

your own applications up and running quickly and painlessly.

Included DI-1100 Protocol Documentation

As you probably suspect when you run our point-and-click WinDaq data acquisition software, there’s a lot going on beneath the

surface. WinDaq software needs to take the data acquisition configuration that you design using its menu system and communicate

that to the hardware. These are things such as sample rate, the number of channels enabled, the specific channel numbers enabled,

etc. Diving down to the lowest level of program activity, past the WinDaq user interface, beyond the device driver to the actual

commands sent to the data acquisition hardware and the format of the responses they evoke, is the protocol. The protocol defines the

exact set of commands a program can send to the hardware, and how the hardware will react as a result. So, if you know the command

and response definitions for the DI-1100 (i.e. its protocol), the instrument can be folded into virtually any operating system and any

programming language: Python, C++, Linux, Windows, OSX, etc., etc. The choice is yours.330-668-1444 10

DI-1100 SpecificationsSignal I/OAnalog InputsNumber of Channels:Configuration:Full Scale Range:Input impedance:Isolation:Absolute accuracy:@ 25°C, excluding common mode errorAbsolute maximum input without

damage:System noise:Maximum common mode voltage:Common mode rejection ratio:Channel-to-channel crosstalk rejection:Digital InputsNumber of ports:Type:Threshold levels:Absolute maximum applied voltage (V):Reserved Digital InputsPort 1:Port 2:4Differential±10 V full scale fixed1MΩnone±12.5 mV @ 25°C±75 V peak, continuous±100 V peak, one minute or less7.8 mV rms± 10 V40 dB (dc - 60 Hz)-80 dB2 (reserved)MOSFET switchTTL-compatible±30 V dcWinDaq remote eventsWinDaq remote start/stopADC CharacteristicsResolution:12-bitAbove zero ADC counts: 2,047Below zero ADC counts: 2,048Maximum sample rate per 40 kHz, 1 enabled channelchannel:30 kHz, 2 enabled channels24 kHz, 3 enabled channels20 kHz, 4 enabled channelsMinimum sample 915.5 Hz (0.0006104 Hz with WinDaq

throughput:software)Sample rate timing accuracy:50 ppmInterface:USB 2.0 (mini-B style connector)Indicator lights:3 LEDs, (2) Green, (1) RGBInput Connections:One 16-position terminal strip0 to 50 °C0 to 90% RH non-condensing-20 to 60 °C0 to 90% non-condensingIndicators and ConnectionsEnvironmentalOperating Temperature:Operating Humidity:Storage Temperature:Storage Humidity:Physical CharacteristicsPowerPower Consumption:<1.0 Watt, via USB interfaceEnclosure:Hardened PlasticMounting:Desktop; bulkheadDimensions:2.625D × 5.5W × 1.53H in.(6.67D × 13.97W × 3.89H cm.)Weight:3.6 re SupportWinDaq software:OS support: View Online (/products/windaq/windows-compatibility/)Programming:DATAQ .NET Class, Instrument protocol,

ActiveX ControlOrdering GuideDescriptionDI-1100 USB Data Acquisition (DAQ) SystemIncludes instrument, 6-ft. USB cable, screwdriver, and WinDaq software via Internet download ()250Ω 4-20 mA shunt resistor±0.1%, 0.5 Watts max., ±50 ppm/°COrder -1100R250241 Springside DriveAkron, Ohio 44333Phone: 330-668-1444Fax: 330-666-5434Data Acquisition Product Links(click on text to jump to page)Data Acquisition | Data LoggerDATAQ, the DATAQ logo and WinDaq are registered trademarks of DATAQ Instruments, Inc. All rights reserves. Copyright © 2017 DATAQ Instruments, information on this data sheet is subject to change without notice.