Description
The National Instruments SCXI-1122, with Part Number 776572-22, is an advanced Isolated Transducer Multiplexer Module featuring a robust 16-channel configuration complemented by 2 additional isolated excitation channels, designed to cater to a broad range of signal conditioning applications.
In its versatile Two-Wire Scan Mode, the module utilizes all 16 input channels for capturing input signals, while the Four-Wire Scan Mode allows for enhanced precision by using 8 of the upper channels as sense leads and the remaining 8 lower channels as current output channels.
Compatibility with National Instruments boards is extensive, including the Lab-PC+, MIO-16, SCXI-1200, and PC-LPM-16, ensuring seamless integration into various data acquisition systems. Connectivity is facilitated through a 50-pin male rear connector and a 48-pin female front connector, allowing for secure and reliable connections.
The module boasts an impressive input impedance of 1 GΩ when powered on, which switches to 100 kΩ when powered off. It offers a selectable bandwidth of either 4 Hz (-10 dB) or 4 kHz, depending on the application’s requirements. Furthermore, it incorporates a 3-pole RC filter with a 4 Hz (-10 dB) cutoff frequency and a 60 dB at 4 Hz bandwidth Noise Measurement Ratio (NMR) to ensure signal fidelity.
With 2 dedicated output channels, the SCXI-1122 provides a stable excitation voltage of 3.333 V ±0.04% and an excitation current of 1.0 mA ±0.04%, making it an ideal solution for demanding measurement and testing environments.
| Feature | Specification |
|---|---|
| Part Number | 776572-22 |
| Product Type | Isolated Transducer Multiplexer Module |
| Channels | 16-Channel |
| Excitation Channels | 2 Isolated Channels |
| Two-Wire Scan Mode | All 16 input channels for input |
| Four-Wire Scan Mode | 8 upper channels as sense leads, 8 lower channels as current output channels |
| Compatible Boards | Lab-PC+, MIO-16, SCXI-1200, PC-LPM-16 |
| Connectors | 50-pin male rear, 48-pin female front |
| Input Impedance | 1 GΩ (Power On), 100 kΩ (Power Off) |
| Selectable Bandwidth | 4 Hz (-10 dB) or 4 kHz |
| Filter | 3-pole RC, 4 Hz (-10 dB) cutoff frequency, 60 dB at 4 Hz bandwidth NMR |
| Output Channels | 2 |
| Excitation Voltage | 3.333 V ±0.04% |
| Excitation Current | 1.0 mA ±0 |
Question 1: What configuration does the National Instruments SCXI-1122 utilize to enhance precision in its Four-Wire Scan Mode?
Answer 1: In its Four-Wire Scan Mode, the National Instruments SCXI-1122 enhances precision by utilizing 8 of the upper channels as sense leads and the remaining 8 lower channels as current output channels.
Question 2: What are the features and capabilities of the National Instruments SCXI-1122 Isolated Transducer Multiplexer Module, including its channel configuration and compatibility with other National Instruments boards?
Answer 2: In its Two-Wire Scan Mode, the National Instruments SCXI-1122 utilizes all 16 input channels, and the input impedance when the module is powered on is 1 GΩ.
Question 3: What are the characteristics and capabilities of the National Instruments SCXI-1122 Isolated Transducer Multiplexer Module, Part Number 776572-22?
Answer 3: The National Instruments SCXI-1122 Isolated Transducer Multiplexer Module, Part Number 776572-22, is a 16-channel module with 2 additional isolated excitation channels, offering both Two-Wire and Four-Wire Scan Modes for versatile signal capturing, extensive compatibility with National Instruments boards such as Lab-PC+, MIO-16, SCXI-1200, and PC-LPM-16, and secure connectivity via a 50-pin male rear connector and a 48
Question 4: What are the key features and specifications of the National Instruments SCXI-1122 Isolated Transducer Multiplexer Module, including its compatibility with various boards and its performance characteristics?
Answer 4: The National Instruments SCXI-1122 Isolated Transducer Multiplexer Module is a sophisticated device that offers a 16-channel configuration with an additional 2 isolated excitation channels, compatible with various National Instruments boards such as the Lab-PC+, MIO-16, SCXI-1200, and PC-LPM-16. It features a Two-Wire Scan Mode that utilizes all input channels for signal capture and a Four-Wire Scan Mode for higher precision, which splits the 16 channels
Question 5: How many input channels does the National Instruments SCXI-1122 utilize in its Two-Wire Scan Mode, and what is the input impedance when the module is powered on?
Answer 5: The National Instruments SCXI-1122 Isolated Transducer Multiplexer Module is a sophisticated device with a 16-channel configuration, two isolated excitation channels, and compatibility with boards such as the Lab-PC+, MIO-16, SCXI-1200, and PC-LPM-16. It supports both Two-Wire and Four-Wire Scan Modes, offers an input impedance of 1 GΩ when powered on (100 kΩ when off), and provides selectable bandwidths
