DI-4108 and DI-4208 Hardware Manual
Introduction
1
1. Introduction
This manual contains information designed to familiarize you with the features and functions of the DI-4108 and DI-
4208 USB data acquisition systems.These systems are identical excluding gain ranges.
Features
Both the DI-4108 and DI-4208 data acquisition instruments are portable data recording modules that communicate
through your computer's USB and/or Ethernet port with stand-alone capability. Features include:
•
8 fixed differential analog inputs protected to 120 V rms.*
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USB, Ethernet, and Power over Ethernet (PoE) interface options.
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7 digital ports protected to +25V.*
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Up to 16-bit measurement resolution (dependent on sample rate).
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The DI-4108 has programmable measurement ranges of ±200, ±500 mV, ±1, ±2, ±5, ±10 Volts.
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The DI-4208 has programmable measurement ranges of ±2, ±5, ±10, ±20, ±50, ±100 Volts.
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Up to 160 kHz maximum throughput sampling rate.
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Adaptable low-pass filter per channel - corner frequency set as a function of sampling rate
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A multi-purpose push-button for W
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remote events and start/stop recording.
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Multi-color LED indication for easy notification of device status.
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Free WinDaq/Lite data acquisition recording software. Records up to four channels of data. Purchase an unlock
code to record more than four channels.
•
Stand-alone option allows the user to configure a recording session through their PC then record data in the field
to removable flash memory via the USB drive port (
without
being connected to their PC). Stand-alone data log-
ging requires Unlock code to record more than 1 channel to removable flash memory.
•
Counter channel.
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Frequency channel.
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ChannelStretch™ Technology allows you to sync up to 16 DI-1120, -4108, or -4208 instruments in any combina-
tion with a total throughput of 480kHz or more (requires unlock code for each device).*
•
Included .Net Class supports programming under any .Net programming language.*
•
Fully documented instrument protocol for programming the device in operating systems other than Windows.*
*WinDaq/Unlock required per device to use ChannelStretch™ and to record more than four total channels when
using WinDaq software. These restrictions do not apply when programming the device yourself.
Analog Inputs
Both the DI-4108 and DI-4208 feature eight differential channel inputs located on a single sixteen-position screw ter-
minal block for easy connection and operation. Gain measurement ranges of ±200, ±500 mV, ±1, ±2, ±5, ±10 Volts
for the DI-4108 or ±2, ±5, ±10, ±20, ±50, ±100 Volts for the DI-4208 are programmable on a per channel basis. Ana-
log channels are protected to 120 V rms.
Utilize the functionality of W
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D
AQ
software to experience all the features encased in these small, inexpensive
instruments. An Unlock Code is required to record more than four channels of any type on either device or to syn-