National Instruments SCXI-1328 Installation Manual Download Page 5

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 National Instruments Corporation

5

SCXI-1328 Installation Guide

Signal Connection

Note

Refer to the 

Safety Information

 section before removing equipment covers or 

connecting or disconnecting any signal wires.

When connecting your signals to the SCXI-1328, follow the labeling on the 
SCXI-1328 for the appropriate module, as indicated in Figure 2.

To connect the signal to the terminal block, perform the following steps, 
referring to Figures 1 and 2 as necessary:

1.

Unscrew the top cover screws and remove the cover.

2.

Loosen the strain-relief screws and remove the strain-relief bar.

3.

Run the signal wires through the strain-relief opening. You can add 
insulation or padding if necessary.

4.

Prepare your signal wire by stripping the insulation no more than 
12 mm.

5.

Connect the wires to the screw terminals by wrapping the wires around 
the screw. No bare wire should extend past the screw head. Exposed 
wire reduces the safety isolation between the high voltage and safe low 
voltages.

6.

Tighten the screws to a torque of 5–7 in.-lb.

7.

Connect safety earth ground to the safety-ground solder lug. Refer to 
the 

Safety Information

 section for connection information.

8.

Reinstall the strain-relief bar and tighten the strain-relief screws.

9.

Reinstall the top cover and tighten the top cover screws.

10. Connect the terminal block to the module front connector as explained 

in the 

Installation

 section.

Summary of Contents for SCXI-1328

Page 1: ...put connector The SCXI 1328 has a high precision thermistor and an aluminum isothermal plate to minimize the temperature gradients across the screw terminals when you measure thermocouples The termina...

Page 2: ...so denotes text that is a placeholder for a word or value that you must supply monospace Text in this font denotes text or characters that you should enter from the keyboard sections of code programmi...

Page 3: ...up to 300 V When connecting or disconnecting signal lines to the SCXI terminal block screw terminals make sure the lines are powered off Potential differences between the lines and the SCXI ground cr...

Page 4: ...tance and returns the thermistor temperature Alternatively you can use the following formulas T C TK 273 15 where TK is the temperature in kelvin a 1 295361 10 3 b 2 343159 10 4 c 1 018703 10 7 RT res...

Page 5: ...gnal wires through the strain relief opening You can add insulation or padding if necessary 4 Prepare your signal wire by stripping the insulation no more than 12 mm 5 Connect the wires to the screw t...

Page 6: ...er Lug 4 Mating Connector 5 Thumbscrew 6 Top Cover Screws 7 Top Cover 1 Screw Terminals 2 Berg Connector W1 3 Channel Labeling for the SCXI 1120 D 4 Channel Labeling for the SCXI 1121 2 7 3 6 4 5 1 Ba...

Page 7: ...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 Vrms Channel to ground 300 Vrms Environment Operating temperature 0 to 50 C Stora...

Page 8: ...cost are updated daily and can be found in the Technical Support section of our Web site at www ni com support Worldwide Support National Instruments has offices located around the globe Many branch...

Page 9: ...6 427 Hong Kong 2645 3186 India 91805275406 Israel 03 6120092 Italy 02 413091 Japan 03 5472 2970 Korea 02 596 7456 Mexico D F 5 280 7625 Mexico Monterrey 8 357 7695 Netherlands 0348 433466 Norway 32 2...

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