Description
The VXI-TB-1303 is an Isothermal Terminal Block manufactured by National Instruments, designed for compatibility with the VXI-SC submodule.
It features minimal temperature gradients across its terminals thanks to its construction, which includes an isothermal copper plane and a temperature sensor.
This terminal block is distinguished by its thermistor cold-junction temperature sensor, ensuring high accuracy in temperature measurement.
It boasts a 32-channel capacity and provides 80 screw terminals for secure and easy connections.
Among these terminals, four are specifically labeled as GND for grounding purposes.
The device also includes a pull-up resistor that connects Ch+ to +5V for detecting output saturation and identifying open thermocouples, while a ground-reference resistor is placed between CH- and chassis ground to provide a reference for floating thermocouples.
Despite its obsolete status as announced by National Instruments, the VXI-TB-1303 remains available for purchase and repairs through Apex Waves.
| Attribute | Description |
|---|---|
| Part Number | VXI-TB-1303 |
| Manufacturer | National Instruments |
| Type | Isothermal Terminal Block |
| Compatibility | VXI-SC submodule |
| Special Feature | Minimal temperature gradients across terminals |
| Construction | Isothermal copper plane, temperature sensor |
| Temperature Sensor Type | Thermistor cold-junction temperature sensor |
| Channel Count | 32-channel |
| Number of Screw Terminals | 80 |
| Ground Terminals | 4 labeled as GND |
| Pull-Up Resistor | Connects Ch+ to +5V |
| Ground-Reference Resistor | Between CH- and chassis ground |
| Obsolete Status | Announced by National Instruments, available at Apex Waves |
Question 1: What features of the National Instruments VXI-TB-1303 Isothermal Terminal Block contribute to its ability to provide accurate temperature measurements and ensure secure connections in a VXI-SC submodule-compatible system?
Answer 1: The VXI-TB-1303 Isothermal Terminal Block, manufactured by National Instruments, features minimal temperature gradients, a thermistor cold-junction temperature sensor for high accuracy, a 32-channel capacity, 80 screw terminals, specific grounding terminals, a pull-up resistor for output saturation detection, and a ground-reference resistor for floating thermocouples. Despite its obsolete status, it can still be obtained through Apex Waves.
Question 2: What are the characteristics and functionalities of the VXI-TB-1303 Isothermal Terminal Block, and where can it still be obtained despite its obsolete status?
Answer 2: The VXI-TB-1303 Isothermal Terminal Block, manufactured by National Instruments, is suitable for high-accuracy temperature measurements due to its isothermal copper plane that minimizes temperature gradients across the terminals, an integrated thermistor cold-junction temperature sensor for precise readings, and a 32-channel capacity with specialized features such as a pull-up resistor for detecting output saturation and a ground-reference resistor for floating thermocouple reference.
Question 3: What are the distinctive features and current procurement options for the obsolete VXI-TB-1303 Isothermal Terminal Block manufactured by National Instruments?
Answer 3: The VXI-TB-1303 Isothermal Terminal Block offers high accuracy in temperature measurement with a thermistor cold-junction temperature sensor and minimal temperature gradients across its terminals, and it has a 32-channel capacity with 80 screw terminals for secure connections; despite being obsolete, it is still available for purchase and repairs through Apex Waves.
Question 4: What features make the VXI-TB-1303 Isothermal Terminal Block, manufactured by National Instruments, suitable for high-accuracy temperature measurements?
Answer 4: The National Instruments VXI-TB-1303 Isothermal Terminal Block features an isothermal copper plane and a temperature sensor for minimal temperature gradients, a thermistor cold-junction temperature sensor for high accuracy in temperature measurement, an 80 screw terminal design for secure connections, a pull-up resistor for detecting output saturation and identifying open thermocouples, and a ground-reference resistor to provide a reference for floating thermocouples, all of which contribute to its ability to provide accurate temperature measurements and ensure secure connections
Question 5: What capabilities does the VXI-TB-1303 Isothermal Terminal Block provide for temperature measurement accuracy and connection capacity, and where can it still be purchased or repaired despite its obsolescence?
Answer 5: The VXI-TB-1303 Isothermal Terminal Block, manufactured by National Instruments, features a thermistor cold-junction temperature sensor for precise temperature measurements, a 32-channel capacity, 80 screw terminals with four designated GND connections, a pull-up resistor for output saturation detection, and a ground-reference resistor for floating thermocouples; despite its obsolete status, it is still available for purchase and repairs through Apex Waves.
