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Keysight Technologies 34901A

20 Channel Multiplexer Module

The Keysight (formerly Agilent) 34901A is the most versatile multiplexer for general-purpose scanning.

The multiplexer module for 34970A and 34972A data acquisition/switch units helps access the internal digital multimeter (DMM). It combines dense, multi-function switching with scan rates of 60 channels per second to address a broad spectrum of data acquisition applications.

Two- and four-wire channels can be mixed on the same module. Two additional fused inputs (22 channels total) route up to 1A of current to the internal DMM, allowing AC and DC current measurements without the need for external shunt resistors.

34901A Specifications and Features

  • 20-channel multiplexer
  • Two- and four-wire scanning
  • 300V switching
  • Scan rates of 60 channels per second
  • Scan count: 1 to 50,000 or continuous
  • Scan interval: 0 to 99 hours; 1ms step size
  • Alarm outputs: 4 TTL compatible; selectable TTL logic Hi or Lo on fail
  • Latency: 5ms (typical)
  • Readings: 50,000 with a time stamp
  • Power-line frequency: 45Hz to 66Hz (automatic sensing)
  •  Power consumption: 12W (25 VA peak) 
  • Open/close speed: 120 per second
  • Offset voltage: < 3 uV 
  • Initial closed channel R: < 1 ohms
  • Isolation ch-ch, ch-earth: > 10 G ohms
  • Bandwidth: 10MHz.
  • Capacitance: < 50 pF (Hi - Lo), < 80 pF (Lo - Earth)
  • Volt-hertz limit: 108
  • Built-in thermocouple reference junction
  • T/C cold junction accuracy: 0.8 degrees C

For the full list of features and specifications, refer to the datasheet.

Applications

You can use the Keysight (formerly Agilent) 34901A multiplexer module to connect to the internal DMM of the 34970A data acquisition system. You can also use this module with the 34972A model data logger.

Accessories

  • One 34901A, 20-channel multiplexer
  • Functional test certificate

34901A, 34902A, or 34908A: Which Multiplexer Should You Choose?

For broad functionality, use the 34901A module, and for high scanning speeds, turn to the 34902A. The 34908A gives you a single-ended density, while the 34901A and 34902A allow multi-channel closures, which the 34908A does not allow.

These three low-frequency multiplexers are the only modules you can use to connect to the internal DMM of the Keysight 34970A and 34972A data logging instruments.

Keysight (Formerly Agilent) 34901A Price and Rental Plans

The list price of the Keysight 34901A multiplexer is approximately $550. At TRS-RenTelco, you can rent or lease the 34901A at affordable rental plans. Talk to us to learn about seasonal offers and discount prices, and we'll give you a quote. We test and calibrate our products in an in-house, ISO/IEC-17025:2017-compliant laboratory for industry-standard performance.

Rent or lease the Keysight (formerly Agilent) 34901A Multiplexer modules from our range of data acquisition systems. Get 24/7 customer support and fast delivery options across the US.

Fill out the contact form with the item or part number to get quotes and product details, or add the items to the cart and order. You can also directly call us at 800.874.7123 for a free quote.

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