Description
The National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block, with Part Number 777687-21, is specifically designed for use with strain gauges, RTDs, and thermistors in applications that involve temperature or voltage measurements across a high number of channels.
This High-Voltage Terminal Block is shielded for enhanced signal integrity and is compatible with the SCXI-1121 module revision C or later. It features 18 screw terminals for secure connections and includes a front-panel trimming potentiometer for manual nulling of offset voltage or bridge transducers.
Each channel of the SCXI-1321 is equipped with software controllable shunt calibration circuits, and a 301 k Ohm shunt resistor can be connected through a switch for calibration purposes. The nulling and shunt resistors are socketed, allowing for easy customization according to user requirements.
The terminal block can accommodate a maximum field wire gauge of 26-16 AWG and provides a cold junction sensor output with an accuracy of ±10 mV/°C and 1.3 °C. It is capable of operating at a maximum voltage of 300 V (CAT II), ensuring safety and reliability in various electrical environments.
Question 1: What are the primary features and specifications of the National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block with Part Number 777687-21, and how do they support its use with strain gauges, RTDs, and thermistors in multi-channel temperature or voltage measurement applications?
Answer 1: The customization options available for the National Instruments SCXI-1321 Terminal Block include the ability to easily replace or change the nulling and shunt resistors due to their socketed design, allowing users to tailor the calibration to specific requirements.
Question 2: What are the key features and specifications of the National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block with Part Number 777687-21?
Answer 2: The National Instruments SCXI-1321 is suitable for temperature or voltage measurements across multiple channels due to its compatibility with strain gauges, RTDs, and thermistors, shielding for enhanced signal integrity, 18 screw terminals for secure connections, front-panel trimming potentiometer for manual nulling of offset voltage or bridge transducers, software controllable shunt calibration circuits with a 301 k Ohm shunt resistor for calibration purposes, and the ability to handle a maximum field wire gauge of
Question 3: What specific features make the National Instruments SCXI-1321 suitable for applications that require temperature or voltage measurements across multiple channels?
Answer 3: The National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block with Part Number 777687-21 is designed for multi-channel temperature or voltage measurements and features 18 screw terminals for secure connections, a front-panel trimming potentiometer for manual nulling of offset voltage, software-controllable shunt calibration circuits with a 301 k Ohm shunt resistor for calibration, and socketed nulling and shunt resistors for customization. It supports a maximum wire gauge of
Question 4: What features of the National Instruments SCXI-1321 Terminal Block make it suitable for applications involving multiple temperature or voltage measurements?
Answer 4: The National Instruments SCXI-1321 Terminal Block is suitable for applications involving multiple temperature or voltage measurements due to its compatibility with strain gauges, RTDs, and thermistors, shielding for enhanced signal integrity, 18 screw terminals for secure connections, a front-panel trimming potentiometer for manual nulling, software-controllable shunt calibration circuits, socketed nulling and shunt resistors for easy customization, and the ability to operate safely at a maximum voltage of 300 V (CAT
Question 5: What are the customization options available for the National Instruments SCXI-1321 Terminal Block, given that its nulling and shunt resistors are socketed?
Answer 5: The National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block, with Part Number 777687-21, is tailored for temperature or voltage measurement applications using strain gauges, RTDs, and thermistors, featuring 18 screw terminals, a front-panel trimming potentiometer for manual offset nulling, software-controllable shunt calibration circuits with socketed nulling and 301 k Ohm shunt resistors for easy customization, a maximum wire gauge capacity of
Related Products
| Specification | Detail |
|---|---|
| Product Name | National Instruments SCXI-1321 Offset-Null and Shunt Calibration Terminal Block |
| Part Number | 777687-21 |
| Application | Strain gauges, RTDs, thermistors; temperature or voltage with high channel quantity |
| Type | High-Voltage Terminal Block |
| Shielding | Yes |
| Compatibility | SCXI-1121 module revision C or later |
| Screw Terminals | 18 |
| Trimming Potentiometer | Front-panel, manual offset voltage or bridge transducer nulling |
| Shunt Calibration | Software controllable circuits for each channel |
| Shunt Resistor Value | 301 k Ohm |
| Customization | Socketed nulling and shunt resistor |
| Max Field Wire Gauge | 26-16 AWG |
| Cold Junction Sensor Output and Accuracy | ±10 mV/°C and 1.3 °C respectively |
| Max Working Voltage | 300 V (CAT II) |
| Recommended Operating Temperature Range |