National Instruments SCXI-1328, Installation Manual

©

 National Instruments Corporation

7

SCXI-1328 Installation Guide

Installation

To connect the terminal block to the SCXI module front connector, perform 
the following steps:

1.

Connect the module front connector to its mating connector on the 
terminal block.

2.

Tighten the top and bottom thumbscrews on the back of the terminal 
block to hold it securely in place.

Note

For accurate cold-junction compensation, place the SCXI chassis away from an 

extreme temperature differential.

Specifications

Cold-junction sensor

Accuracy

1

........................................ 0.5° from 15 to 35 °C

0.9° from 0° to 15 °C 
and 35 to 55 °C

Repeatability ................................... 0.2° from 15 to 35 °C

Output ............................................. 1.91 to 0.58 V from 0 to 55 °C

Common-mode isolation

Channel to channel.......................... 300 V

rms

Channel to ground........................... 300 V

rms

Environment

Operating temperature............................ 0 to 50 °C

Storage temperature ............................... –20 to 70 °C

Relative humidity ................................... 5% to 90% noncondensing

Safety

Designed in accordance with IEC 61010-1, UL 3111-1, and CAN/CSA 
C22.2 No. 1010.1 for electrical measuring and test equipment. 
Approved at altitudes up to 2000 meters.
Installation Category II
Pollution Degree 2

1   

Includes the combined effects of the temperature sensor accuracy and the temperature difference between the temperature 
sensor and any screw terminal. The temperature sensor accuracy includes tolerances in all component values, the effects 
caused by temperature and loading, and self-heating.