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LabJack U12 USB Data Acquisition
Description
The LabJack U12 is a low-cost USB based analogue and digital I/O unit for data logging, data acquisition, measurement and control applications. Supplied with a wide range of FREE Data logging and oscilloscope software and examples for use with most programming and DAQ packages. Now, also supplied with A free COPY OF DAQFactory Express. PCB only OEM version also available.
Software Downloads >> LabJack Forum >> Accessories >> LabJack Software >>	8 Single-Ended, 4 Differential 12-Bit Analogue Inputs ±10 Volt Analogue Input Range PGA with Gains of 1, 2, 4, 5, 8, 10, 16, or 20 V/V Up to 8kSamples/Sec (Burst) or 1.2 kSamples/Second (Stream) Supports Software or Hardware Timed Acquisition Supports Triggered Acquisition 2 Analogue Outputs 20 Digital I/O (Up to 50 Hz per I/O) 32-Bit Counter Watchdog Timer Function Easy to Use Plug-and-Play USB Device Connect Up to 80 LabJacks to One USB Port Complete Software Control, No Jumpers or Switches No Power Supply Needed Includes FREE Datalogging, Ocilloscope and Driver Software Includes FREE copy of DAQFactory Express RealView , ProfiLab and DAQFactory software also available NEW - DAQPlot Data acquisition software for Apple Macintosh computers Write data to disk, an HTML webpage or email Includes LabVIEW VIs Works with Windows 98SE, ME, 2000, or XP Includes Cable and Screwdriver 150mm x 110mm x 35mm Wide range of accessories and sensors available
NEW LJ-U12PH OEM PCB-Only version	The LJU12-PH is an OEM board-only version of the LabJack U12. This -PH board has pin-headers installed (component side) instead of screw-terminals, and the LED is mounted on the component side. Ideal for fitting into your own equipment. All software and a dimensional drawing is available on the downloads page NOTE - Not supplied with USB lead or software.
Analogue Inputs
The LabJack U12 has 8 screw terminals for analogue input signals (AI0-AI7). These can be configured individually as 8 single-ended channels, 4 differential channels, or combinations in between. Each input has a ±10 volt input range with 12-bit resolution. Differential channels can make use of the low noise precision PGA to provide gains up to 20, giving an effective resolution greater than 16-bits. The LabJack U12 is capable of both software and hardware timed acquisition. When using software timed acquisition, the PC sends a command to the LabJack, and it responds with data. This mode can acquire 4 channels at up to 50 samples/second per channel. When using hardware timed acquisition, the PC sends a command to the LabJack telling it to start a burst or stream mode acquisition. In burst mode, up to 4,096 samples will be aquired from 1-4 channels at up to 8,192 samples/second and stored in the buffer. After the acquisition is complete, the data is transferred to the PC. A hardware trigger can be configured for burst mode that starts the acquisition when a digital input changes state. In stream mode, data is aquired from 1-4 channels at up to 1,200 samples/second and stored in the LabJack buffer. Simultaneously, the data is transferred from the LabJack buffer to the PC buffer, allowing the data to be streamed to disk continuously.
Analogue Outputs
The LabJack U12 has 2 screw terminals for analogue output signals (AO0 & AO1). Each analogue output can be set to a voltage between 0 and the supply voltage (+5 volts nominal) with 10-bits of resolution. The analogue outputs are controlled in command/response mode at up to 50 Hz per channel.
Digital I/O
The LabJack U12 has 20 digital I/O channels which can be individually configured as input or output. Connections to 4 of the digital I/O are made with the built-in screw terminals (IO0-IO3). These 4 channels have built-in overvoltage/short-circuit protection. As inputs or outputs, they are controlled/read in command/response mode at up to 50 Hz per bit. As inputs only, they can be read with the high-speed burst and stream modes. The remaining 16 digital I/O are accessed through the DB-25 connector and controlled/read in command/response mode at up to 50 Hz per bit. These channels can sink or source up to 25 mA each (total sink or source current of 200 mA max for all 16), allowing direct interface to many relays, such as the RO-16 board. LabJack Digital Expansion Accessories >>
Counter and Watchdog Timer
There is one 32-bit counter available on the LabJack U12 (screw terminal CNT), capable of counting frequencies up to 1 MHz. The counter is read in command/response mode at up to 50 Hz The LabJack U12 also has a watchdog timer function available which can change the states of digital I/O if the LabJack does not successfully communicate with the PC within a specified timeout period. This function could be used to reboot the PC allowing for reliable unattended operation.
Software
The LabJack is supplied with the following applications; LJLogger - Slow speed data logging - logs/sets all analogue/digital channels LJSCope - 2 Channel Oscilloscope LJSimple - simple slow speed data logger with chart display LJCounter - logs counter - provides readout in frequency or count LJStream - high speed data record to disk
Also included; Software Toolkit (DLL, ActiveX) for Windows 98/2000/NT/XP Many Visual Basic, C++, Delphi etc. examples Software Toolkit for Labview, Wonderware Intouch DAQFactory Driver and examples Other Supported Software Packages >>
Accessories
Digital
CB-25 Screw Terminal Board	Provides screw terminal connections short-circuit and overvoltage protection  2m cable is included. User Manual >>
RO-16 Relay/Opto- isolator board	8 x 3A 250VAC Relays 8 x 5-24V DC opto isolator inputs LED indication of input/output status No external power supply needed 2M cable included User Manual >>
PowerEgg - Mains Switch/Monitor	Switches mains power via LabJack digital output Returns main on/off status via LabJack digital input IEC input/output connectors Controls fully isolated from mains 110 to 230VAC, switches up to 8A User Manual >>
Analogue
TCK-4 Type-k Thermocouple Amplifer	4 differential type-k thermocouple input channels 10mV/°C output -200°C to 1250°C thermocouple range On-board cold junction compensation Single 5V or 7 to 28V supply Low current consumption All IO via screw terminals Desktop, panel or DIN Rail mounting More Information >>
EI1050 Digital Temperature/Humidity Probe	Digital temperature and humidity probe -40°C to 120°C temperature range 0-100% Relative Humidity Uses 2 x digital I/O lines, so leaves analogue inputs free Can be used with DAQFactory software Datasheet >>
EI1034 Digital Temperature Probe	Waterproof stainless-steel probe Linear output of 22.5 mV per degree C Typical accuracy of ±0.22 degrees C -17 to +150 degrees C temperature Range Supplied with 2m cable Datasheet >>
Miscellaneous
USB Active Extender USB-EXT	A USB cable cannot be used reliably used where the distance is greater than 5m. For distances greater than this, an active USB repeater is required Connect up to 4 repeaters in series No external power required USB 1.1 and 2.0 each repeater is 5m long
USB Active Extender CAT5 USB-CAT5	Overcome USB's 5m transmission limitation by using this extender along with standard network cable. Can extend USB by up to 45m. Use standard CAT 5/5e/6 RJ45 cable to interconnect works up to 45m Master - RJ45 female, USB A male via lead Remote - RJ45 female, USB A socket No external power required USB 1.1 only NOTE - not supplied with RJ45 cable - just Master and Remote units.
USB Active Extender with 4-port HUB USB-EXTHUB	Extend any USB peripheral up to 45m Use standard CAT 5/5E/6 network cable (not supplied) to interconnect units 4-port Hub on one of the units (5V power supply if devices are high current) Plug and play Supports Win 98/98SE/2000/XP and Mac OS 8.6 or higher Dimensions (HxWxD): 23x100x70mm
USB Hubs LJ-Hub4 - 4 Port USB Hub   LJ-Hub7 - 7 Port USB Hub     By using USB hubs, up to 80 LabJacks can be connected to a single USB port, providing an inexpensive solution for low-speed high channel count applications. Plug and play Overcurrent protection USB Hub, 5m USB lead and PSU
Additional Software
RealView - The premier virtual chart recorder software package. More Information >>	Low cost virtual chart recorder software multiple plots per charts, multiple chart pages plot zoom functions copy chart display as an image file print out chart display with annotations export data to Excel supports multiple LabJack U12s and UE9s
ProfiLab-Expert - graphical programming software package for data acquisition and control applications More Information >>	Low cost graphical programming software package Optimised for data acquisition and control applications Wide range of control, display and maths function blocks. Programs are “written” by wiring function blocks together Create multi-page operator interfaces LED, numeric, meter, bar, chart , button, switches, panel controls Compile programs to executables without any run-time penalty
DAQFactory - data acquisition, automation sequences, analysis, operastor displays and more More Information >>	data logging chart displays, bar charts and dynamic images create an operator HMI on-line statistical analysis and full maths capability automation sequences provide process control capability easy-to-use, no programming knowledge required versions with image library, web-server, and much more
DAQPlot - data acquisition, logging and control for Apple Macintosh computers More Information >>	For use with Apple Macintosh computers Easy to use data logging and control outputs Replaces expensive paper recorders Has a rich set of features with plenty of detail Produces publication quality results
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