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8-Channel High Speed USB Data Acquisition System with Stand-alone Capability
Copyright © 2019 by DATAQ Instruments, Inc. The Information contained herein is the exclusive property of
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, the DATAQ logo, and W
T h e w a y P C - b a s e d i n s t r u m e n t a t i o n s h o u l d b e
D
are registered trademarks of DATAQ Instruments, Inc. All rights reserved.
IN
AQ
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
DI-2108
User's Manual
Manual Revision E
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Summary of Contents for Dataq DI-2108
- Page 1 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.
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Page 3: Warranty And Service Policy
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 90 days 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. -
Page 5: Table Of Contents
Connect the Instrument to Your Computer ..................8 4. Controls, Indicators, and Connections ..................... 9 Mini-B USB Connection ........................9 Screw Terminals ..........................9 DI-2108 Signal Connections ....................... 9 Connecting Signal Leads ......................10 Analog Inputs ..........................11 Low-pass Filter ........................12 Resolution as a Function of Sample Rate ................ -
Page 7: Introduction
Digital I/O The DI-2108 contains seven digital ports, which may be used as a general-purpose digital inputs or for a specific function as designated on the device. Digital port D0 is reserved for WinDaq Events; Digital port D1 is reserved for WinDaq remote Start/Stop;... -
Page 8: Windaq® Recording And Playback Software
DI-2108 Hardware Manual ® Recording and Playback Software Acquisition and W Waveform Browser allow you to record and playback data acquired through your instrument. W software is an invaluable resource to record and analyze your data and is available for free from our web site (www.dataq.com). -
Page 9: Specifications
DI-2108 Hardware Manual 2. Specifications Analog Inputs Number of Channels: Channel Configuration: Differential Voltage Measurement Range: ±10V Full Scale Input impedance: 110k Dc accuracy: ±5 mV at 16-bit resolution and 25°C, excluding common mode error Absolute maximum input without damage: ±100 V dc or peak ac (normal mode + common mode) Common mode range: ±20 V dc or peak ac... - Page 10 DI-2108 Hardware Manual Count/Rate Digital port assignment: Count: Port 2 configured as input Rate: Port 3 configured as input Internal pull-up value: 4.7 k Input high voltage threshold: 2.4V Input low voltage threshold: 0.8V Terminal count: 65,535 Maximum rate frequency:...
- Page 11 DI-2108 Hardware Manual Software Support software: OS support: Check online at http://www.dataq.com/products/windaq/ windows-compatability/ Programming: Instrument Protocol Specifications...
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Page 13: Installation
DI-2108 Hardware Manual 3. Installation The following items are included with each DI-2108 USB Data Acquisition System. Verify that you have the follow- ing: • A DI-2108 USB data acquisition instrument. • 6-foot USB cable. • A DATAQ Instruments screwdriver for signal lead connections. -
Page 14: Connect The Instrument To Your Computer
Connect the Instrument to Your Computer DI-2108 instruments can be connected to your computer’s USB port using the provided USB cable. No external power is required. Connect one end of the communications cable to the instrument port and the other to your PC’s port. -
Page 15: Controls, Indicators, And Connections
DI-2108 Hardware Manual 4. Controls, Indicators, and Connections Digital Ports 0-6 +5V Out Ground Even Marker USB Drive 0-25V Max Push Button +5V GnD Event Record Rate Count Drive Model DI-2108 Button Bulkhead Bulkhead www.dataq.com mounting ear mounting ear Status Activity LED ±10V F.S. -
Page 16: Connecting Signal Leads
GnD: Ground. Connecting Signal Leads Connect signal leads to the DI-2108: Insert the stripped end of a signal lead into the desired terminal directly under the screw. Tighten the pressure flap by rotating the screw clockwise with a small screwdriver. Make sure that the pressure flap tightens only against the signal wire and not the wire insulation. -
Page 17: Analog Inputs
DI-2108 Hardware Manual Analog Inputs Eight fixed differential analog inputs measure ± 10V (CH1 to CH8). Designed to withstand ±100 V dc or peak ac. 100K 100K Use the following diagram to connect Analog Input Channel 1. 0-25V Max +5V GnD... -
Page 18: Low-Pass Filter
When choosing an acquisition method in WinDaq (menu item Edit > Channel Settings) Last Point, Maximum, and Minimum turn the filter off. The DI-2108 calculates its own Last Point, Maximum, Minimum, and Filter data making it available at the programming level. Acquisition methods “RMS” and “Frequency” are permanently disabled for the DI-2108, as are Input Types “Nonlinear”... -
Page 19: Resolution As A Function Of Sample Rate
DI-2108 Hardware Manual Resolution as a Function of Sample Rate The resolution of the DI-4718B is a function of sample rate. The lower the sample rate the higher the resolution. ADC resolution (R) is a function of selected sample rate per channel (F), and the number of enabled analog channels (C):... -
Page 20: Digital Ports
Digital Ports The DI-2108 contains 7 general-purpose digital ports. Each digital port can be configured as a digital input or used as a switch to control an external load (up to 25 V and 100 mA). Many of the ports also provide specific functionality in or a third-party program. -
Page 21: Windaq Remote Events (D0 Event)
DI-2108 Hardware Manual Remote Events (D0 Event) To use a switch closure or TTL signal to record W Event Markers, connect signal leads to the appropriate Remote Control Event terminals on the DI-2108 as shown below. Signal + Signal - 0-25V Max... - Page 22 DI-2108 Hardware Manual An example event marker in a W data file is shown below. *Please Note: Event Markers do not display in the real-time W acquisition software - they only display in the playback software (WWB). Controls, Indicators, and Connections...
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Page 23: Windaq Remote Storage (D1 Record)
DI-2108 Hardware Manual Remote Storage (D1 Record) To use a switch closure or TTL signal to begin recording data remotely, connect signal leads to the appropriate Remote Control Record terminals on the DI-2108 as shown below. Signal + Signal -... - Page 24 Rate channel. Click on the Channel 10 channel box to enable/disable Rates. The Channel 10 channel box will display an “R” when enabled. Connect any TTL pulse stream (25 VDC max) to the D2 Rate channel on the DI-2108. Signal +...
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Page 25: Windaq Counter (D3 Count)
DI-2108 Hardware Manual measure the output of a flow meter that can measure a maximum flow rate of 100 gallons per minute, and the output frequency at that rate is 100 Hz, you would choose the 100 Hz range setting. A range setting of 200 Hz full scale sac- rifices half of the instrument's resolution at 200 gallons per minute, and a range of 50 Hz allows measurements to only 50 gallons per minute full scale. - Page 26 DI-2108 Hardware Manual Acquisition menu to open the Channel Selection grid. Channel 11 is the designated Count channel. Click on the Channel 11 channel box to enable/disable Counts. The Channel 11 channel box will display a “C” when enabled. The counter channel accumulates counts over time whether recording or in standby mode as soon as the Counter channel is enabled.
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Page 27: General Purpose Digital Inputs
DI-2108 Hardware Manual Connect any TTL pulse stream (25 VDC max) to the D3 Count channel on the DI-2108. Signal + Signal - 0-25V Max +5V GnD Drive Event Record Rate Count Model DI-2108 Button www.dataq.com Status ±10V F.S. ±100V Max General Purpose Digital Inputs Enable Channel 9 for general-purpose digital input functions. -
Page 28: General Purpose Digital Outputs
DI-2108 Hardware Manual Channel 9 records and displays all the digital inputs, even the state of the Rate and Count inputs if those channels are enabled. With Channel 9 selected in the display window click Scaling > Digital Plot to show a digital display and make the data more meaningful on screen. -
Page 29: 4-20Ma Current Loop Measurements
DI-2108 Hardware Manual 4-20mA Current Loop Measurements Use the following diagram for 4-20mA current loop measurement connections. 0-25V Max +5V GnD Event Record Rate Count Drive Model DI-2108 Button www.dataq.com Status ±10V F.S. ±100V Max Shunt Resistor Model R250 4-20 mA... -
Page 30: Led Indicator
You can also associate these values to a physical measurement such as pressure, load, flow, torque, etc. Read the Help files for more information regarding Engineering Units Settings. LED Status Indicator The DI-2108 provides a multicolor LED for instrument status and notification. Use the table below for a detailed description of each available state. State... -
Page 31: Usb Drive Port
DI-2108 Hardware Manual Recording Data The device is acquiring data and recording to your USB thumb drive. Do not remove power - power interruption could result in data file cor- to USB thumb ruption. Drive Blinking Blue/ Green Armed The device is acquiring data and waiting for a trigger condition to begin recording to your USB thumb drive. -
Page 32: Stop Recording To Usb Thumb Drive
The native communication mode of the DI-2108 is LibUSB but it can be switched to the USB CDC (Communication Device Class). CDC mode allows the USB port of DI-2108 devices to appear like a traditional RS-232 port, which is common across most operating systems and development languages. Please note: LibUSB communication is required for WinDaq Acquisition software and programming with our .NET SDK. -
Page 33: Apply Ethernet And Stand-Alone Configuration To Device
DI-2108 Hardware Manual thumb Drive (mode LED blinks green/yellow). The Unlock Code must be purchased for your device in order to apply the stand-alone configuration. Save configuration files to your USB thumb drive. Confirm device is in Idle mode for USB Flash Drive (mode LED blinks Green/Yellow). - Page 34 DI-2108 Hardware Manual Use the Configure menu to access the Stand alone setup window. Select and configure all channels available on your device, select a sampling interval, and setup recording Trigger conditions. The Stand alone configuration also allows you to Save/Load configurations via the File menu. Use the help file provided in WinDaq Dashboard to learn more.
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Page 35: Unlock Windaq And Stand-Alone Operation
Operation The DI-2108 will record up to four channels using WinDaq/Lite software and a single channel to the USB thumb drive. An unlock code is required to record all of the channels on the device. There are two unlock codes available for the DI-2108. - Page 36 DI-2108 Hardware Manual Select your device and click the menu item Configure > Stand Alone Setup. Click on the Yes button to enter your code. Click on the No button to go to Stand-alone configuration for a single channel. Enter the Key in the appropriate dialog boxes.
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Page 37: Dimensional Drawing
DI-2108 Hardware Manual 6. Dimensional Drawing Top View Side View All dimensions in inches Dimensional Drawing... - Page 40 DATAQ Instruments, Inc. 241 Springside Drive Akron, Ohio 44333 Telephone: 330-668-1444 Fax: 330-666-5434 Submit a support ticket to: www.dataq.com/ticket Direct Product Links (click on text to jump to page) Data Acquisition | Data Logger...
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