Keysight 34921A 40-Channel Armature Multiplexer
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Keysight 34921A is a 40-channel armature multiplexer with 100 channel/second scanning, 300V switching, 1A current rating, and integrated thermocouple reference.
Product details
| Model | 34921A |
| Manufacturer | Keysight |
| Category | DAQ Modules & Cards |
| Availability | Made to order |
Description
Overview
The Keysight 34921A is a versatile multiplexer module for the 34980A Multifunction Switch/Measure Unit, designed for general-purpose data acquisition applications. It features low thermal offset characteristics and a built-in thermocouple reference junction, making it ideal for temperature measurements directly to the internal DMM. The 40 channels support both 2-wire and 4-wire configurations for flexible signal routing.
Key Features
- 40 2-wire channels, configurable for 2-wire or 4-wire measurements
- 100 channel/second scan rate
- 300V switching voltage and 1A switch current; 2A carry current
- 4 additional fused current channels for AC and DC current measurements
- Built-in thermocouple reference junction for temperature measurements
- Low thermal offset of less than 3 µV
- Latching armature relays with relay counter
- Standard 50-pin Dsub connectors for flexible connectivity
Applications
- General-purpose data acquisition and multiplexing
- Temperature measurement with thermocouple inputs
- Low-level signal measurement
- Multi-channel component testing and characterization
- Benchtop test and measurement systems
Specifications
| Series | 34980A Series |
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Keysight 34921A 40-Channel Armature Multiplexer
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