DI-785 Industrial Data Acquisition System

Product Highlights

• From sensor to results with one product
• Accepts DI-5B series plug-in signal conditioning modules — use the DI-788 with DI-8B modules
• 32 analog input channels
• Ethernet interface supports synchronous and distributed data acquisition up to 100 meters apart. For greater distances between units, use the DI-789 Repeater Switch.
• Desktop unit with optional rack mount configurations
• 14-bit resolution
• Up to 180,000 Hz sample throughput rate.
• WinDaq software support.

Model DI-785 is a 32-channel data acquisition system based on our 5B-style modular signal conditioners and Third Generation Ethernet (3GE) communications. The DI-785 is packaged in an enclosure that measures 16.5W × 18.5D × 3.5H inches (41.9W × 47D × 8.9H centimeters) that is suitable for placement on a desktop, or can be mounted in a standard 19-inch rack using optional brackets. It’s also the first product from DATAQ Instruments to feature a built-in switching AC power supply, allowing it to be powered directly from AC line voltage.

The DI-785 features similar data acquisition performance as our model DI-720-EN, but is supplied with two built-in 16- channel 5B module backplanes allowing up to 32 DI-5B modules to be installed bringing the universe of isolated industrial measurements to the DI-785. DI-5B modules can measure thermocouple, voltage, strain, frequency, process current, RTD, potentiometric, and RMS. Modules may be mixed and matched in any combination suitable for your application. Signal connection is via eight removable screw terminal blocks.

The DI-785 can connect to any local area network (LAN), and direct Internet access is also possible when allowed by the network. The interface uses CAT-5 cable to yield continuous data acquisition rates up to 180,000 samples per second throughput for a single DI-785. Multiple DI-785s connected to the same network can achieve throughput rates as high as 2,500,000 samples per second or more. Adding more flexibility, multiple DI-785s, as well as DI-720/-730 products, each equipped with an Ethernet interface, may be daisy-chained together with CAT-5 cable to form an ad-hoc extended network of autonomous, yet fully synchronous data acquisition stations. Each station can sample at the same or different rate as other stations and still maintain full synchronization. The maximum distance between stations is 100 meters. This daisy-chained, synchronous aspect of the product is patented (US 7,792,139 B2).

Distributed and Synchronous Ethernet Data Acquisition

Daisy chain multiple DI-785 and/or DI-720/730 products for a fully synchronous distributed Ethernet Data Acquisition System. Learn more here.

Signal Conditioned Inputs

32 DI-5B signal conditioned input channels—all within a single enclosure—connect you to the entire spectrum of industrial measurements: VDC, VAC, Thermocouple, RTD, Frequency, Current, Potentiometer, and Strain. Built-in 600V input-to-output isolation lets you make any measurement you need under any circumstances.

Intelligent Oversampling per Channel

Oversampling and signal averaging, minimum value, or maximum value burst reporting options provide excellent data reduction analysis techniques for many applications.

Includes WinDaq Software

Be up and running minutes out of the box with WinDaq acquisition and playback software. WinDaq/Lite software is included free with the purchase of every DI-785 instrument. WinDaq/Lite operates at a maximum throughput recording rate of 240 Hz with a DI-785 Instrument. Purchase WinDaq/Pro or WinDaq/Pro+ to record at the full sample rate. See the differences between all 3 versions of WinDaq Acquisition Software.

WinDaq Waveform Browser, our playback and analysis software for Windows, is distributed free with WinDaq/Lite and is included free with every WinDaq/Pro or WinDaq/Pro+ purchase. It is also available for download free-of-charge from this Web site. Use it to review, measure, compare, and analyze the waveform file after it has been recorded by WinDaq acquisition software. WinDaq software products support up to 14 bits of measurement resolution.

Ordering Information, Models, and Prices

Part Number	Description	Price (US)	DATAQ Store
DI-785	32-channel DI-5B module data acquisition system.	$3995	Quantity:
DI-5B Modules	DI-5B modules are required to use a DI-75B instrument. These modules are not included with the purchase of ANY DI-75B. Learn more about DI-5B modules.	$150 to $265 each	Learn more about DI-5B Modules

Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country. DI-5B modules are NOT included with the purchase of ANY DI-785 instrument and must be ordered individually.

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DI-785 Data Acquisition Software and Accessories

Part Number	Description	Price (US)	DATAQ Store
Software
WinDaq/Pro	Multitasking data acquisition software recording at the highest speed of the instrument. Learn more about WinDaq Data Acquisition Software.	$1395	Quantity:
WinDaq/Pro+	Multitasking data acquisition software that supports variable sample rates per channel. Learn more about WinDaq Data Acquisition Software.	$1995	Quantity:
WinDaq/Lite	Multitasking data acquisition software with limited 240 Hz record-to-disk rate. Learn more about WinDaq Data Acquisition Software.	FREE	Download WinDaq/Lite on Support page
Software Upgrades
WinDaq/Pro Upgrade	Available only to previously registered users of WinDaq/Pro.	$200	Quantity:
WinDaq/Pro Upgrade/EMAIL	Available only to previously registered users of WinDaq/Pro. Unlock Code ONLY. No CD will be shipped.	$200	Quantity:
WinDaq/Pro+ Upgrade	Available only to previously registered users of WinDaq/Pro+.	$200	Quantity:
WinDaq/Pro+ Upgrade/EMAIL	Available only to previously registered users of WinDaq/Pro+. Unlock Code ONLY. No CD will be shipped.	$200	Quantity:
Accessories
DI-789	Ethernet repeater board. Enhanced Ethernet switch expands the distance between synchronous units over 100 meters apart. Learn more...	$495	Quantity:
101014-EA	External USB to Ethernet converter. Allows you to connect your DI-785 to your USB port. Adds an external Ethernet card to your PC. Learn More...	$30	Quantity:
RMK-500	Rack mounting kit for standard 19-inch rack.	$60	Quantity:
100995-MCVR	Replacement screw terminal block (TOP).	$10	Quantity:
100995-MCVW	Replacement screw terminal block (BOTTOM).	$10	Quantity:
NIST-78X-CAL	NIST-traceable calibration certificate for all DI-785 and DI-788 data acquisition and data logger products. Provides "after" data. Shipping charges do apply when ordering online. Learn more about Calibrating your device. Please Note: Calibration certificates cannot be returned for a refund.	$95	Quantity:

Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country. DI-5B modules are NOT included with the purchase of ANY DI-785 instrument and must be ordered individually.

Contact Customer Support

Knowledge Base and Common Support Issues

EN-B Ethernet Communications and Installation Issues

Ethernet Installation on a Windows Vista PC

How to Export Recorded Data to Excel

Synchronized and Distributed Data Acquisition in Hot Strip Steel Mills

USB-to-Ethernet Adapters

WinDaq Monitors and Documents Control Rod Drive Welds

Data Acquisition Tips

Learn the Importance of Isolation In Four Easy Lessons

Intelligent Oversampling Methods Extend Measurement Flexibility

Frequency and True RMS Data Acquisition

How To Choose Strain Gage-based Transducers for PC-based Data Acquisition Applications

Strain Gage-Based Transducer and Amplifier Selection and Calibration

Enhancing Data Acquisition with Intelligent Over Sampling (IOS)

The Art and Science of Reliability

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