Description
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The NI PXIe-2725 is an advanced 18-Channel 8-bit Programmable Resistor designed for versatile applications. This device, identified by the part number 781986-25, falls under the category of PXI Switches. Its sophisticated design allows for precise control and flexibility in a variety of testing scenarios.
The NI PXIe-2725 boasts 18 channels, each capable of handling a maximum voltage of 60 VDC or 30 VACrms, categorized under CAT I1 for both channel-to-channel and channel-to-ground connections. The device ensures safety and reliability in its operations. Each channel can carry a maximum current of 0.3 A and a maximum power of 0.25 W, ensuring efficient power management across all channels.
This programmable resistor offers an extensive resistance range from 1 Ω to 255 Ω per channel, with a fine resolution of 1 Ω steps. This feature enables users to set precise resistance values for their specific applications, enhancing the accuracy and versatility of the device. The channel accuracy varies from <5.0% within the range of 20 Ω to 64 Ω and improves to <2.0% for resistances ranging from 64 Ω to 255 Ω, demonstrating the device’s precision across its operational range.
Connectivity options include a 37-pin D-SUB and 2×2 Micro-Fit connectors, providing flexible and reliable connections for a wide range of applications. The NI PXIe-2725’s dimensions are 21.6 × 2.0 × 13.0 cm (8.5 × 0.8 × 5.1 in.), making it a compact yet powerful solution for programmable resistance needs in various testing environments.
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| Specification | Details |
|---|---|
| Part Number | 781986-25 |
| Category | PXI Switches |
| Model | PXIe-2725 |
| Description | NI PXIe-2725 18-Channel 8-bit Programmable Resistor |
| Channels | 18 |
| Maximum Voltage | 60 VDC, 30 VACrms, CAT I1 (channel-to-channel and channel-to-ground) |
| Maximum Current | 0.3 A (per channel) |
| Maximum Power | 0.25 W (per channel) |
| Resistance Range | 1 Ω to 255 Ω (per channel) |
| Resolution | 1 Ω steps |
| Channel Accuracy | <5.0% (20 Ω to 64 Ω); <2.0% (64 Ω to 255 Ω) |
| Connectors | 37-pin D-SUB, 2×2 Micro-Fit |
| Dimensions (L × W × H) | 21.6 × 2.0 × 13.0 cm (8.5 × 0.8 × 5.1 in.) |
| Weight | Question 1: What’s the resistance range of the NI PXIe-2725?



