Description
The National Instruments SCXI-1321, with the part number 777687-21, falls under the category of SCXI & Legacy and is designed as an Offset-Null and Shunt Calibration Terminal Block. This product is specifically tailored for applications involving strain gauges, RTDs, or thermistors and is particularly suitable for temperature or voltage applications that require a high quantity of channels.
It is important to note that the SCXI-1321 is compatible only with the SCXI-1121 module revision C or later. This terminal block features 18 screw terminals and includes a front-panel trimming potentiometer for ease of use. Moreover, it is equipped with shunt calibration circuits, which can be controlled as a group via software, enhancing its utility for precise measurements and calibrations.
The shunt resistor provided is 301 k Ohm and is customizable by the user, allowing for flexibility in various applications. The SCXI-1321 can accommodate a maximum field wire gauge of 26-16 AWG. Additionally, it offers a cold junction sensor output and accuracy of ±10 mV/°C and 1.3 °C, respectively, ensuring reliable temperature measurements.
Designed to operate safely up to 300 V (CAT II), the SCXI-1321 is suitable for a wide range of electrical environments. It operates optimally within a temperature range of 0 to 50 °C and can be stored in temperatures ranging from -20 to 70 °C. The relative humidity range for its operation is 10 to 90% (non-condensing), making it versatile for use in various climatic conditions.
The SCXI-1321 adheres to several electrical safety standards, including IEC 61010-1, EN 61010-1, UL 3111-1, UL61010B-1, and CAN/CSA C22.2 No. 1010.1, ensuring its compliance with international safety and quality benchmarks.
| Specification | Detail |
|---|---|
| Part Number | 777687-21 |
| Model | SCXI-1321 |
| Category | SCXI & Legacy |
| Description | National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block |
| Applications | Ideal for applications with strain gauges, RTDs, or thermistors, suitable for temperature or voltage applications with a high quantity of channels |
| Compatibility | Can only be used with the SCXI-1121 module revision C or later |
| Screw Terminals | 18 |
| Front-Panel Trimming Potentiometer | Yes |
| Shunt Calibration Circuits | Yes, controllable as a group via software |
| Shunt Resistor | 301 k Ohm, user-customizable |
| Maximum Field Wire Gauge | 26-16 AWG |
| Cold Junction Sensor Output and Accuracy | ±10 mV/°C, 1.3 °C respectively |
| Maximum Working Voltage | 300 V (CAT II) |
| Recommended Operating Temperature Range | 0 to 50 °C |
| Storage Temperature Range | –20 to 70 °C |
| Relative Humidity Range | 10 to 90% (non-condensing) |
| Electrical Safety Standards | IEC 61010-1, EN 61010-1, UL 3111-1, UL61010B-1, CAN/CSA C22.2 No. 1010.1 |
| Obsolete StatusQuestion 1: What is the part number of SCXI-1321? Answer 1: 777687-21 Question 2: Is SCXI-1321 compatible with all SCXI-1121 modules? Question 3: What is the shunt resistor value in SCXI-1321? Question 4: What safety standards does SCXI-1321 comply with? Question 5: What is the maximum operating voltage of SCXI-1321? |
