National Instruments TBX-1328 Installation Manual

INSTALLATION GUIDE
TBX-1328 H
T B
ERMINAL
Introduction
What You Need to Get Started
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321179B-01 © Copyright 1996, 2000 National Instruments Corp. All rights reserved.
-A
IGH CCURACY
LOCK
This guide describes how to install and use the TBX-1328 high-accuracy
isothermal terminal block with the SCXI-1120, SCXI-1120D, SCXI-1121,
SCXI-1125, and SCXI-1126 modules.
The TBX-1328 high-accuracy isothermal terminal block is a DIN-rail
mountable, shielded terminal block with screw terminals to connect to the
SCXI-1120, SCXI-1120D, SCXI-1121, SCXI-1125, or SCXI-1126 front
connector. The TBX-1328 has a high-precision thermistor for precise
cold-junction compensation and isothermal copper planes to minimize the
temperature gradients across the screw terminals when you take
measurements with thermocouples. The TBX-1328 mounts on most
European standard DIN EN mounting rails.
The terminal block has 24 screw terminals for easy connection. Eight screw
terminals connect to the SCXI chassis ground through the shield of the
SH32-32-A cable. With the SCXI-1120, SCXI-1120D, SCXI-1125, or
SCXI-1126, the remaining eight pairs of screw terminals connect signals to
the eight SCXI module input channels. With the SCXI-1121, four pairs of
screw terminals connect signals to the four SCXI module input channels
and four pairs connect to the SCXI module excitation channels.
To set up and use your SCXI-1328 terminal block, you need the following
items:
❑
TBX-1328 high-accuracy isothermal terminal block
❑
TBX-1328 High-Accuracy Isothermal Terminal Block
Installation Guide
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, ni.com , and SCXI are trademarks of National Instruments Corporation. Product and company names
I
SOTHERMAL
December 2000