DI-148U, DI-148U-SP, and DI–158 Series Hardware Manual
Introduction
1
1. Introduction
This manual contains information designed to familiarize you with the features and functions of the DI-148U, DI-
148U-SP, and the DI-158 Series data recording modules. These high-end Starter kits contain features and functional-
ity normally reserved for more expensive data acquisition systems.
Features
The
DI-148U
data acquisition instrument is a portable data recording module that communicates through your com-
puter's USB port. Power is derived from the interface port so no external power is required. Features include:
•
8 single-ended analog inputs.
•
Six digital I/O for Remote control.
•
±10V full scale measurement range.
•
14,400 samples per second maximum sampling rate.
The
DI-148U-SP
data acquisition instrument is a portable data recording module designed specifically for use with
String Pots that communicates through your computer's USB port. Power is derived from the interface port so no
external power is required. Features include:
•
2 string pot inputs plus 2 single-ended general purpose analog inputs.
•
Six digital I/O for Remote control.
•
±10V full scale measurement range.
•
14,400 samples per second maximum sampling rate.
The
DI-158
data acquisition instrument is a portable data recording module that communicates through your com-
puter's USB port. Features include:
•
4 fixed differential analog inputs.
•
4 digital I/O for Remote control.
•
Programmable Gain option allowing 10 different gain settings from ±64V FS measurement range to ±0.125V FS
measurement range (depending on model).
•
Up to 14,400 samples per second maximum sampling rate.
Analog Inputs
The
DI-148U
features eight single-ended analog channel inputs located on a single eight-position screw terminal
block for easy connection and operation. The 10-entry input scan list allows you to scan any sequence of input chan-
nels at any software-configurable channel setting. Note: The DI-148U does not support Gain.
The
DI-148U-SP
features two string pot inputs (three terminals each: ground, voltage, wiper) and two single-ended
analog channel inputs located on a single eight-position screw terminal block for easy connection and operation. The
6-entry input scan list allows you to scan any sequence of input channels at any software-configurable channel set-
ting. Note: The DI-148U-SP does not support Gain.
The
DI-158 Series
features four differential channel inputs located on a single eight-position screw terminal block for
easy connection and operation. The 6-entry input scan list allows you to scan any sequence of input channels at any
software-configurable gain setting. Standard models (DI-158U) feature 4 programmable gain ranges at a full scale
