National Instruments SCXI-1321 Specifications

SCXI-1321 Terminal Block Installation Guide 6 ni.com

Note To minimize the temperature gradient inside the terminal block, move the SCXI

chassis away from any extreme temperature differential.

Specifications

All specifications are typical at 25 °C unless otherwise specified.

Cold-junction sensor

Accuracy1........................................0.9 °C

Output..............................................10 mV/°C from 0 to 55 °C

Resistors

RSHUNT.............................................301 kΩ ±1%

RNULL...............................................39 kΩ ±5%

RTRIM...............................................10 kΩ

Nulling potentiometer

Range...............................................0 to 10 kΩ

Step size...........................................infinite (user adjustable)

Resistor sockets

Connecting lead size........................0.023 to 0.026 in.

Connecting lead length....................0.110 to 0.175 in.

Lead spacing....................................0.500 in.

Maximum working voltage refers to the signal voltage plus the

common-mode voltage.

Channel-to-earth.....................................300 V, Installation Category II

Channel-to-channel.................................300 V, Installation Category II

1 The temperature sensor accuracy includes tolerances in all component values caused by temperature and loading,

and self-heating.