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330-668-1444Model DI-2108
USB DAQ and Stand-alone Data Logger, 32GB USB Flash Drive, 4-8 Analog Inputs, ±10 V, 160kHz, Anti-aliasing Filter, 7 D I/O, Free WinDaq Software
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- Includes a DI-2108 instrument, a 6-foot USB cable, a screwdriver for signal connections, an NIST-traceable Calibration Certificate, and a 32GB USB flash drive with WinDaq software (downloadable at run.dataq.com)
Bundle and Save- Provided with WinDaq/Lite Software which records up to four channels (Unlock Code required to record all 8 channels using WinDaq - See Accessories)
- Stand-alone capability records data to USB thumb drive (Unlock Code required to record all channels to USB thumb drive - See Accessories)
- Need trigger modes or to stream data to Excel directly? Please consider DI-2108XL
- Eight armored analog differential inputs
- Up to ±100 V without damage
- 80 dB common mode rejection
- Fixed measurement range of ±10 V full scale
- DI-2108 doesn't suport thermocouple input, please consider DI-2008 instead
- Adaptable anti-alias filter per channel - Corner frequency set as a function of sampling rate
- Up to 16-bit analog-to-digital resolution (Calculate Resolution)
- Up to 160,000 Hz Sample Throughput Rate using WinDaq Acquisition software
- Up to 160,000 Hz Sample Throughput Rate in stand-alone mode using high speed microSD card
- Seven digital ports
- Programmable per port as input or switch
- Support for rate measurements to 50 kHz
- Support for 16-bit counter
- External trigger input
- Published protocol for software development in all operating systems
- Markings: CE, UKCA
- Find out how long your data logger can record to removable flash memory with our Record Time Calculator
- 10% Education Discount
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Description
DI-2108 High Speed USB Data Acquisition and Data Logger System with Windaq software and 32GB USB flash drive. Features 8 differential analog input channels, 12 to 16-bit measurement resolution, a full scale range of ±10V, and stand-alone data recording to removable USB thumb drive. Includes a DI-2108 instrument, a 6-foot USB cable, a screwdriver for signal connections, an NIST-traceable Calibration Certificate, and a 32GB USB flash drive with WinDaq software (downloadable at run.dataq.com) and the Calibration Certificate (.pdf).
Model DI-2108 delivers premium analog performance at a surprisingly affordable price. Eight analog input channels provide differential measurement flexibility and a ±10 V full scale range. The differential input configuration provides noise rejection, easily adapts to singleended signal sources, and is protected up to ±50 V dc or peak ac so that inevitable measurement mishaps will not harm the instrument. The front-end feeds a flexible resolution analog-to-digital converter that ranges from 12 to 16 bits as a function of sampling rate. Lower sampling rates deliver higher resolution readings. The maximum sampling throughput rate of the DI-2108 is 220 kHz, providing 12 bits of resolution. Rounding off the analog subsystem are anti-alias filters per channel with automatic selection of corner frequency at approximately one tenth of the sampling frequency. Finally, an external trigger input allows A-D conversion to be synchronized to external events.
The DI-2108 provides 7 digital ports, each configurable as an input or a switch. Input protection is provided to 25 V. When activated as inputs two ports allow dual functionality as discrete inputs, or programmed as a counter or rate input. The rate input features a 50 kHz maximum measurement allocated over twelve programmable measurement ranges (10 Hz to 50 kHz full scale.) The counter input provides 16-bit resolution and a terminal count value of 65,535. The discrete, counter, and rate inputs are members of the same internal scan list used by the analog input channels. This means that all enabled elements are acquired synchronously, which allows meaningful comparisons between analog and digital channels. For example, the rate input measuring engine speed allows rpm data to be acquired in lock-step with analog data. Configured as a switch a digital port can be used to control external loads up to 25 V @ 100 mA, and the switch can be controlled asynchronously without interfering with the scanning process.
A USB drive is used to record data in stand-alone mode. The DI-2108 can record continuously using a circular buffer with pre-defined trigger conditions or a record-until-full approach supporting remote start/stop. A push button allows manual start/stop control over the recording process. With a flash memory card incorporating SLC technology, throughput rates up to 160 kHz can be achieved. That rate drops to 50 kHz when using pSLC card, and 20 kHz using a flash memory card incorporating MLC. The included WinDaq data acquisition software makes configuring the DI-2108 for stand-alone operation quick and intuitive. Use WinDaq to set up channels and create a reference file. That reference file can then be copied to the USB drive and used for quick setup.
Accessories
Description
Unlocks WinDaq to allow recording all the channels available on your device. Unlock Code required for each device. Unlock Code ONLY. No CD will be shipped. Please Note: If you are ordering this software for a device you already own, you MUST provide the serial number of your device under "Order Notes" during checkout to receive the unlock code. Please allow one (1) business day for processing.
Description
Unlocks both WinDaq (to allow recording all the channels available on your device) and stand-alone data logger operation (allows all channels to be recorded to removable USB flash memory). AC power adapter included for stand-alone operation (part number 101085). Unlock Code sent via Email. No CD will be shipped. Please Note: If you are ordering this software for a device you already own, you MUST provide the serial number of your device under "Order Notes" during checkout to receive the unlock code. Please allow one (1) business day for processing.
Description
Not all rechargable batteries are created equal. In addtion to charging your phone, we test and make sure our battery can power DI-2160, DI-2108, DI-2108P, DI-4108 or DI-4208 for standalone recording that lasts for days. 20000mAH capacity. Buy two to operate standalone recording with one while charging another. 10% Educational Discount
Description
Unlocks WinDaq ExcelLink to capture and streaming WinDaq data to any version of Microsoft Excel spreadsheet directly. No programming is needed. Compatible with ChannelStrech operation. Unlock Code required for each device.Please Note: If you are ordering this software for a device you already own, you MUST provide the serial number of your device under "Order Notes" during checkout to receive the unlock code. Please allow one (1) business day for processing.
Description
250 Ω ±0.1% Precision, Metal Film, 1/2W, Axial Resistor
Exceptionally low noise; typically 0.10 μV/V
Low voltage coefficient to ±5 ppm/V
Flame retardant coating. RoHS
compliant. Learn More
Description
32GB 3.0 USB flash drive for stand-alone recording up to 10,000 Samples per second throughput.
Description
1 GB Industrial Industry-grade high speed SLC microSD flash memory card. Recommended for recording rates higher than 80K S/s throughput rate and harsh environment. microSD Card Reader (Part#2000352) is needed
Description
32 GB Industry-grade high capacity microSD flash memory card. Recommended for recording rates between 10,000 S/s and 40,000 S/s throughput rate and harsh environment. microSD Card Reader (Part#2000352) is needed
Description
Micro SD Card Reader with USB A interface. Hi-Speed USB 2.0 compatible transfer rates. No additional card adapters required
Description
AC Adapter for Sensor (such as 4-20mA) Excitation. Input: AC 100V-240V 50/60Hz; Output: 12V, 2A. Power Cable Length: 36.6 inch (0.9m).
Description
2000361-H High precision pressure sensor measures PSI ranges of -14.5 up to 10000 PSI dependant on model. Made with 316 stainless steel and high temperature auto-graded plastic. 0.5% accuracy. 0.5V – 4.5V linear voltage output. 10% Educational Discount
Description
2000361-HX 4-20mA Output High precision pressure sensor measures PSI ranges of -14.5 to 10000 PSI dependant on model. 8-30V supply voltagle, such as a car battery. Made with 316 stainless steel and high temperature auto-graded plastic. 0.5% accuracy. 4-20mA linear current output. 10% Educational Discount
Description
Allows you to power data logger with a battery. Input voltage: DC8-35V, (12V/24V changes to 5V); Output parameter: DC5V 3A, 15W MAX
Description
Ferrite choke reduces interference for USB-based data acquisition products.
Description
Optional USB Cable for use with ChannelStretch™. Dual ferrite cores provide maximum protection against ground bounce that could lockup your PC's USB port during data acquisition. 20.4-inch (520 mm) overall cable length. Recommended whenever products are deployed in our ChannelStretch™ configuration.
Description
Powered 7 port USB hub to synchronize multiple USB devices. Please note: Not all DATAQ Instruments devices support synchronization - check your product datasheet or product page for detailed information. Note: Provided with a US ac adaptor only, and is not suitable for use in countries that require an ac mains connector other than the US type.
Description
16-ft USB Extension Cable. USB 2.0 Type A. Daisy chain up to 5 cables for extended length.
Description
Optional AC power supply (USB to AC) for stand-alone applications and charging EL-WiFi Series products. Includes US adapter.
Description
YF-S201 Flow Sensor Measures 1-30L/min. Light weight, small size, durable, and easy to install. Inlaid with stainless steel impeller shaft. Lowest working voltage: DC4.5 5V-24V; Max current: 15 mA (DC 5V); Max operation temp: 120°C. Learn more.
Description
Re-calibration Service, this calibration certificate is included with new instruments. NIST-traceable certificate for model DI-2108 high speed data acquisition product. Includes before and after data. Shipping charges do apply when ordering online. Learn more about Calibrating your device.
Description
Spare European Adapter for AC power supply 101017-2 and 101085.
Description
Spare UK Adapter for AC power supply 101017-2 and 101085.
Description
Spare Australian Adapter for AC power supply 101017-2 and 101085.
Description
One AC/DC Current Clamp includes 9V battery and user manual. Download the DataSheet (pdf) to learn more or go to the product page. A banana jack to wire (pair), part number 2000429, is needed to connect this to the screw terminals
Description
Banana jack to wire (six inches long), perfect for connecting ACDC-256 to screw terminals
Software
WinDaq
Data Acquisition Recording and Playback Software
Included FREE with your DI-2108 purchase. Record as many as 4 channels at 160,000 samples per second throughput. Installs drivers and WinDaq recording and playback software. Includes optional Add-on software with a valid installation key. Record all 8 channels with an Unlock Code (see Accessories).
WinDaq ExcelLink
WinDaq-to-Excel Real Time Link
High speed (up to 160K s/s) with powerful trigger methods to capture or stream data to Excel in real time, compatible with ChannelStretch, supports both 32- and 64-bit Excel. No programming is needed.
WinDaq/XL
WinDaq-to-Excel Real Time Link
Real-time data logging directly to Microsoft Excel (supports MS Office 2003 or higher). No programming required. Free Trial Version. Purchase full version on WinDaq/XL product page.
WinDaq Add-ons and Utilities
Library
Library of add-on packages for WinDaq Software, such as live XY plot, FFT, Spectrogram, Meter, Gauge, Alarm, etc.
Python Example Programs
Available on GitHub
FREE Python example programs using the fully documented device protocol. All sample programs are well-commented to help you get up and running quickly.
MATLAB Example Program
Program in Protocol Level
Learn how to program with MATLAB® in protocol level. Does not require MathWorks' Data Acquisition Toolbox.
LabView Example Programs
Available on GitHub
FREE LabView example programs using the Dataq's ActiveX Controls. All sample programs are well-commented to help you get up and running quickly.
Frequently Asked Questions
Can I save data in Microsoft Excel format?
Data can be streamed to Microsoft Excel using WinDaq/XL. Data can also be exported to Excel after acquisition using WinDaq Waveform Browser. See How to Import Recorded Data to Excel.
Can I program it under Matlab?
See our Matlab example on github.
Can I record 4-20mA sensor signals and if so, how do I do that?
4-20-mA process current signals can be measured with the DI-2108. See How to make 4-20mA current Loop Measurements for more information.
Does the device have internal memory (i.e. can I record in stand-alone mode)?
Though the DI-2108 does not have internal memory you can record data to a removable USB thumb drive (included with purchase). Configure the device with your PC then deploy in the field. An unlock code is required to store more than one channel to the USB thumb drive.
What kind of thumb drive can I use?
Almost any off-the shelf thumb drive can be used but could cause gaps in data. The thumb drives provided on our web site are tested and rated for speed. For higher speeds we recommend using the SLC micro SD card with a USB A microSD card reader available in Accessories.
Can I connect and measure data from a single-ended sensor?
Yes. Single-ended sensors can be connected and measured. The best practice is to connect the ground wire to the negative input of the channel.
Can I measure Thermocouple temperatures?
Thermcouple temperature measurements would not be accurate using the DI-2108 and should not be attempted. Thermocouple measurements are non-linear and require special programming to provide accurate readings.
Is software included with the device?
WinDaq Data Acquisition and Playback Software is included free.
Where do I download the software?
Download software at https://www.dataq.com/support/downloads/DATAQ-Software-Suite-Web-Setup.exe.
Does the DI-2108 include a calibration certificate?
All new DI-2108 instruments ship with an NIST-traceable calibration certificate.
Can I get the DI-2108 re-calibrated?
Recalibration service is available and can be ordered online.
How often should I get the DI-2108 re-calibrated?
The DI-2108 should be re-calibrated annually.
Can I program this device in Python, C#?
The published protocol of the DI-2108 is available for programming in any language. View our GitHub page for example programs.
Is my sensor compatible with this device?
Maybe. Sensors with an output within the range of ±10 Volts can be used with the DI-2108. See how fine a measurement you can make with your sensor using the ADC Resolution Calculator. If you have any questions about compatibility just send your sensor information to our sales team at sales@dataq.com.
How do I unlock my device?
If you purchase an unlock code when you order a DI-2108, the device ships unlocked and you do not need to do anything. If you purchased an Unlock code to upgrade in the field you can unlock the device following the instructions in the pdf manual (https://www.dataq.com/resources/pdfs/manuals/di-2108-usb-daq-hardware-manual.pdf - Chapter 5, "Unlock WinDaq or Stand-alone Operation").
Is the DI-2108 Isolated?
The DI-2108 is not an isolated instrument. The armored analog inputs can withstand up to ±50 V without damage.
Does the DI-2108 include digital or analog output channels?
The DI-2108 has seven bi-directional digital ports that can be programmed as an input or switch..
My sensor requires a power source, can the DI-2108 provide that power?
Yes. The DI-2108 can provide +5V power by connecting the appropriate wire to the +5V pin.
Specifications
| Analog Inputs | |
| Number of Channels: | 8 (Unlock code required to record more than 4 channels with WinDaq - see Accessories) |
| Configuration: | Differential |
| Full Scale Range: | ±10 V full scale fixed |
| Input impedance: | 110 kΩ minimum (Lastest version can be found here) |
| DC accuracy: | ±5 mV at 16-bit resolution 25°C, excluding common mode error |
| Absolute maximum input without damage: | ±50 V dc or peak ac (normal mode + common mode) |
| Common mode range: | ±10 V dc or peak ac |
| Common mode rejection ratio: | 80 dB (dc - 60 Hz) |
| Channel-to-channel crosstalk rejection: | -80 dB |
| Digital Inputs | |
| Number of ports: | 7 |
| Type: | MOSFET switch |
| Configuration: | Programmable as digital input or switch |
| Pull-up value: | 4.7 kΩ |
| Input high voltage threshold: | 2.4V |
| Input low voltage threshold: | 0.8V |
| Absolute maximum applied voltage (V): | 0 ≤ V ≤ 25 V |
| Reserved Digital Inputs | |
| Port 1: | WinDaq remote events |
| Port 2: | WinDaq remote start/stop |
| Port 3: | Rate input |
| Port 4: | Count input |
| Digital Ports Programmed as Switch | |
| Maximum drain voltage: | 25 V |
| Maximum sink current: | 100 mA |
| Count/Rate Inputs | |
| Digital port assignment: | Count: Port 2 configured as input Rate: Port 3 configured as input |
| Internal pull-up value: | 4.7 kΩ |
| Input high voltage threshold: | 2.4V |
| Input low voltage threshold: | 0.8V |
| Terminal count: | 65,535 |
| Maximum rate frequency: | 50 KHz with one enabled channel, 20 KHz with 2-4 enabled analog channels, otherwise 10 KHz. |
| Minimum rate frequency: | 0.5 Hz |
| Maximum count frequency: | 50 kHz |
| Power | |
| Power Consumption: | <1.0 Watt, via USB interface |
| ADC Characteristics | |
| Resolution: | 12 to 16-bit |
| Above zero ADC counts: | 2,047 to 32,767 |
| Below zero ADC counts: | 2,048 to 32,768 |
| Maximum sample throughput rate: | 220,000 S/s (160,000 S/s throughput for analog channels, plus 20 kHz per enabled digital channel) |
| Minimum sample throughput: | Hardware only: 20 S/s WinDaq software: 2.2 samples per hour |
| Sample rate timing accuracy: | 50 ppm |
| Removable Memory | |
| Type: | MLC, pSLC, or SLC flash memory (with USB SD card reader); USB thumb drive |
| File Format | CSV (Excel compatible) or WinDaq (Higher capacity and max speed) |
| Required Format: | FAT32 |
| Indicators and Connections | |
| Interface: | USB 2.0 (mini-B style connector) |
| Status LED: | Multi-color LED |
| Input Connections: | Two 16-position terminal strips |
| Environmental | |
| Operating Temperature: | 0 to 50 °C |
| Operating Humidity: | 0 to 90% RH non-condensing |
| Storage Temperature: | -20 to 60 °C |
| Storage Humidity: | 0 to 90% non-condensing |
| Physical Characteristics | |
| Enclosure: | Polycarbonate ABS, 0.080 inch thickness |
| Mounting: | Desktop; bulkhead |
| Dimensions: | 3.28D × 6.68W × 1.13H in. (83.31D × 169.67W × 28.7H mm.) |
| 3D Model | Click here |
| Weight: | 5.7 oz. (162 grams) |
| Software Support | |
| WinDaq software: | OS support |
| Programming: | DATAQ .NET Class, Instrument protocol, ActiveX Control |
Articles
How to Acquire Flow Rate and Flow Volume using a DATAQ Data Logger
Making Pressure Measurements with a Dataq Data Logger and Pressure Sensor
DI-2108 USB Data Acquisition .Net Class
Intelligent Oversampling Methods Extend Measurement Flexibility
4-20mA Current Loop Data Acquisition
4-20 mA Measurement Resolution
Videos
Pressure Measurements
Learn how to make pressure Measurements with a pressure sensor and Dataq products.
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Quick Product Comparison
| Model (DI-) |
Analog channels |
Measurement Range |
Expansion with other models (DI-) |
Max Sample Rate (Hz) |
Low-pass Filter |
ADC Resolution |
Digital I/O |
Stand-alone Capability |
Counter Channel |
Rate Channel |
| 1100 | 4 | ±10 V | - | 40,000 | - | 12 | 2 In | - | - | - |
| 2108 | 4 or 8 | ±10 V | - | 160,000 | Yes | 12-14 | 7 Bi | Yes | Yes | Yes |
| 2108-P | 4 or 8 | B† | 2108-P | 160,000 | Yes | 16 | 7 Bi | Yes | Yes | Yes |
| 4108 | 4 or 8 | C† | 4108, 4208, 4718B, 4730 | 160,000 | Yes | 12-16 | 7 Bi | Yes | Yes | Yes |
| 4208 | 4 or 8 | A† | 4208, 4108, 4730, 4718B | 160,000 | Yes | 12-16 | 7 Bi | Yes | Yes | Yes |
*Expand with ChannelStretch™. Compatibility with other units dependent on model.
†Use the following chart to determine Measurement Ranges:
| A | B | C |
| ±2 V ±5 V ±10 V ±20 V ±50 V ±100 V |
±2.5 V ±5 V ±10 V 0-5 V 0-10 V |
±200 mV ±500 mV ±1 V ±2 V ±5 V ±10 V |