Description
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The SCXI-1128 is defined by its part number 776572-28 and is recognized as a 32-channel SSR Multiplexer. This device is versatile in its switching modes, supporting 1-wire, 2-wire, 3-wire, and 4-wire configurations. It offers various matrix configuration options including 1-wire 64×1, 2-wire 32×1, 2x 4×8, and 4x16x1, catering to a wide range of application needs.
When it comes to electrical specifications, the SCXI-1128 can handle a maximum signal voltage of up to 300 VDC or 250 VAC, with a maximum switching power of 9 W per channel and a maximum switching current of 30 mA per channel. The device maintains a low DC path resistance of less than 1.2 kΩ, ensuring efficient operation. The relay operation time is typically 0.25 ms, with a release time of 0.08 ms, highlighting the multiplexer’s quick response capabilities.
Furthermore, the SCXI-1128 boasts a maximum scan rate of 1200 channels/s, making it suitable for high-speed applications. To achieve optimal performance, a recommended warm-up time of 5 minutes is suggested. Compatibility with programming environments such as NI-SWITCH, LabVIEW, and Measurement Studio allows for easy integration into existing setups and facilitates user-friendly programming options.
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| Specification | Details |
|---|---|
| Part Number | 776572-28 |
| Model | SCXI-1128 |
| Description | 32-channel SSR Multiplexer |
| Switching Mode | 1-wire, 2-wire, 3-wire, 4-wire |
| Matrix Configuration Options | 1-wire 64×1, 2-wire 32×1, 2x 4×8, 4x16x1 |
| Maximum Signal Voltage | 300 VDC / 250 VAC |
| Maximum Switching Power | 9 W per channel |
| Maximum Switching Current | 30 mA per channel |
| DC Path Resistance | < 1.2 kΩ |
| Relay Operation Time | 0.25 ms typical |
| Release Time | 0.08 ms typical |
| Maximum Scan Rate | 1200 channels/s |
| Recommended Warm-up Time | 5 minutes |
| Programming Compatibility | NI-SWITCH, LabVIEW, Measurement Studio |
| Weight |
Question 1: What is the max voltage the SCXI-1128 can handle? Question 2: What is the part number for the SCXI-1128 model? Question 3: How many channels does the SCXI-1128 support? Question 4: What is the max switching current per channel for SCXI-1128? Question 5: What is the max scan rate of the SCXI-1128? |




