Description
The National Instruments CB-68T Isothermal Terminal Block, with part number 777926-01, is specifically designed for use with NI PCI-4351, NI PXI-4351, and NI USB-4350 devices, and is compatible with the CA-1000 enclosure. This isothermal terminal block boasts a shielded design inclusive of screw terminals and digital signal conditioning accessory connections, ensuring minimized temperature gradients thanks to its isothermal features.
It is tailored for a variety of applications including RTDs, thermocouples, thermistors, and voltage signals, and is especially adept at improving the accuracy of thermistor temperature sensors through its cold-junction sensor compatibility at CHO Terminal. Additionally, the CH1 Terminal is dedicated to auto-zeroing circuitry, further enhancing measurement precision.
When used for digital signal conditioning, the NB7 or NB8 cables are recommended. For other applications, users are advised to employ the SH6868 Shielded Cable or R6868 Ribbon Cable, with the former being the preferred choice due to its superior shielding capabilities.
| Specification | Detail |
|---|---|
| Product Name | National Instruments CB-68T Isothermal Terminal Block |
| Part Number | 777926-01 |
| Compatible with | NI PCI-4351, NI PXI-4351, NI USB-4350 |
| Enclosure Compatibility | CA-1000 |
| Type | Isothermal Terminal Block |
| Features | Shielded, Screw terminals, Digital signal conditioning accessory connections |
| Temperature Gradient Minimization | Yes, isothermal features |
| Usage | RTDs, Thermocouples, Thermistors, Voltage signals |
| Cold-Junction Sensor Compatibility | CHO Terminal |
| Auto-Zeroing Circuitry Compatibility | CH1 Terminal |
| Recommended Cables for Digital Signal Conditioning | NB7 or NB8 |
| Recommended Cable Assemblies (if not used for digital signal conditioning) | SH6868 Shielded Cable or R6868 Ribbon Cable (SH6868 recommended) |
Question 1: What types of sensors can be improved in accuracy using the National Instruments CB-68T Isothermal Terminal Block’s cold-junction sensor compatibility at the CHO Terminal?
Answer 1: For digital signal conditioning with the National Instruments CB-68T Isothermal Terminal Block, the recommended cable types are the NB7 or NB8 cables.
Question 2: What specific features of the National Instruments CB-68T Isothermal Terminal Block enhance the measurement precision of RTDs, thermocouples, thermistors, and voltage signals, and which cables are recommended for digital signal conditioning applications?
Answer 2: The accuracy of thermistor temperature sensors can be improved using the National Instruments CB-68T Isothermal Terminal Block’s cold-junction sensor compatibility at the CHO Terminal.
Question 3: What types of sensors is the National Instruments CB-68T Isothermal Terminal Block particularly effective at improving accuracy for, and what specific terminals does it feature to enhance measurement precision?
Answer 3: The National Instruments CB-68T Isothermal Terminal Block is designed to work with the NI PCI-4351, NI PXI-4351, and NI USB-4350 devices, and for digital signal conditioning applications, the NB7 or NB8 cables are recommended.
Question 4: What devices is the National Instruments CB-68T Isothermal Terminal Block designed to work with, and what specific cables are recommended for digital signal conditioning applications?
Answer 4: The National Instruments CB-68T Isothermal Terminal Block is particularly effective at improving accuracy for RTDs, thermocouples, thermistors, and voltage signals, featuring the CHO Terminal for cold-junction sensor compatibility and the CH1 Terminal dedicated to auto-zeroing circuitry to enhance measurement precision.
Question 5: What are the recommended cable types when employing the National Instruments CB-68T Isothermal Terminal Block for digital signal conditioning?
Answer 5: The National Instruments CB-68T Isothermal Terminal Block enhances the measurement precision of RTDs, thermocouples, thermistors, and voltage signals through its isothermal design that minimizes temperature gradients, a shielded design for reduced noise, and specialized terminals such as the CHO Terminal for cold-junction sensor compatibility and the CH1 Terminal for auto-zeroing circuitry; for digital signal conditioning applications, the NB7 or NB8 cables are recommended to ensure optimal performance.
