DI-4718B Data Acquisition and Data Logger Products

Supports DI-8B Amplifiers

Product Features

• Measures temperature, pressure, flow, current, voltage, and more using isolated 8B amplifiers. View the DI-8B amplifier selection guide
• Low-Cost, Portable, USB or Ethernet Data Logger
• Eight DI-8B signal-conditioned analog inputs. Expandable with ChannelStretch™ (Unlock code required for each instrument)
• Stand-alone data logger option allows in-the-field measurements to be saved to flash memory (unlock code required for each instrument to record all channels to flash memory)
• Up to 16-bit analog to digital conversion
• Adaptable low-pass filter per channel - Corner frequency set as a function of sampling rate
• Includes WinDaq Software
• Up to 160,000 Hz Sample Throughput Rate
• Two digital ports for remote controls
• Software support includes ready-to-run WinDaq software and documented protocol for software development in all operating systems (visit our GitHub repository for example programs)
• CE Approved

Products in the Series

Description

Model DI-4718B is an eight-channel instrument designed for general purpose and stand-alone data logging applications that require signal conditioning. Install up to eight DI-8B isolated signal conditioning modules on the printed circuit board using the removable front panel. DI-8B modules are the world’s smallest, fully functional and isolated analog signal conditioners. Each DI-8B module protects, filters, amplifies, and isolates an input signal, providing an advanced signal conditioning solution for nearly any industrial measurement.

Add up to 128 analog channels with ChannelStretch™ channel expansion, which is supported in all USB and Ethernet versions. Synchronize any USB DI-4718Bs, DI-4108s, DI-4208s, and/or DI-1120s to one PC or synchonize multiple DI-4718B Ethernet units. Acquire from as many as 128 analog and 112 digital channels at combined total throughput rates over 480 kHz.

Analog Subsystem

Model DI-4718B features 12- to 16-bit analog-to-digital resolution as a function of sample rate. Lower sampling rates deliver higher resolution readings. The maximum analog sampling throughput rate of the DI-4718B analog subsystem is 160 kHz, providing 12 bits of resolution. Resolution varies with respect to sample rate. See inside for details.

Stand-alone Operation

A USB drive is used to record data in stand-alone mode. The DI-4718B 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-4718B 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.

Software Overview

Model DI-4718B is provided with comprehensive software support. For point-and-click, ready-to-run applications the DI-4718B 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 performance, continuous, without gaps, and simultaneously to both the real time display and disk. Record only a few readings, or as many as 2 GB (total file size of 4GB). The DI-4718B reserves two digital inputs for WinDaq software that are dedicated for remote stop/start and remote event operations. WinDaq also includes software to review recorded data files, including waveform analysis and data file export to Microsoft Excel and other applications. Custom programming the DI-4718B is supported through its protocol documentation. Finally, the DI-4718B supports ChannelStretch™ technology, allowing multiple instruments (DI-4108, -4208, -1120) to be synchronized to expand channel count without clumsy external cabling (details inside).

Interface Options

The DI-4718B provides two interface options: USB and Ethernet (optional Power over Ethernet). Both have stand-alone capability (optional Unlock Code required to record more than one channel) to record to flash memory.

USB allows for quick plug-and-play access to your DI-4718B. Using ChannelStretch™ technology, and cascading multiple USB hubs, add up to 15 additional instruments (a total of 128 analog channels and 105 digital ports) with a maximum throughput sample rate ≥ 480 kHz. Connect and sycnronize with DI-1120, DI-4108, and DI-4208 USB devices.

Ethernet allows you to access your DI-4718B over much greater distances (up to 100 meters between stations). Connect directly to a PC, to a LAN port, or wirelessly using an access point. Using wireless hubs and ChannelStretch™ technology, you can add up to 15 additional units at throughput sample rates ≥ 50 kHz.

The Power over Ethernet (PoE) option gives you the same functionality as the standard Ethernet connection, but also provides power to the DI-4718B using a PoE-enabled switch (sold separately). This eliminates the costly expense of running power to a remote location where data acquisition may be essential.