The 34980A is a Data Logger from Agilent. Data loggers, or data recorders, collect information over time for a variety of purposes. A data logger uses internal memory and sensors to gather and document information on a 24-hour basis. Receive an accurate and comprehensive picture of the environmental conditions you’re monitoring as the device logs this information around the clock. Use data logging to measure temperature, humidity, wind speed, solar radiation, soil moisture levels, road traffic, tank levels, and a number of other elements.
- Eight-slot mainframe, choice of 21-plug-in modules
- Built-in DMM with 6½ digits (22 bits) of resolution
- Scan rates of up to 1000 channels/second
- Standard LAN, USB, and GPIB connectivity to PC, LXI Class C compliant
- Easy remote access with built-in Web interface
- Up to 560 2-wire mux or 4096 matrix cross-points in one mainframe
If you use automated test equipment for design validation or manufacturing, you now have a cost-effective solution for many test system applications. The Keysight Technologies 34980A multifunction switch/measure unit provides functionality that is easy to set up and use, with a fast start-up time. This switch measure unit helps you lower your cost of test and accelerate your test-system integration and development. The 34980A handles system switching up to 26.5 GHz and provides basic measurements and system control. It also offers DMM measurements, counter/ totalizer functionality, digital I/O with pattern capabilities, and analog outputs with basic waveforms— all in one low-cost, compact box. And with its standard connectors and software drivers, computer-standard I/O, and Web browser interface, the measure unit easily integrates into electronic functional test and data acquisition systems.
Flexible switching, measurements, and system control
The multifunction unit can accommodate up to 8 plug-in modules to give you the flexibility you need. Choose from 21 different modules to define your own configuration. You can buy what you need now and add to it or reconfigure it as your requirements change. Whether you are measuring temperature, AC or DC voltage, resistance, frequency, current, or custom measurements, it offers the functionality you need in a single box. Switch in different measurements with high-performance signal switching up to 300V with no external signal conditioning required. Choose between different switch types and topologies with frequency ranges from DC to 26.5 GHz. This instrument offers high-density multiplexers for scanning multiple channels, matrices for connecting multiple points at one time, and general purpose switches for simple control and high power needs. Use the 34980A to route individual signals or monitor multiple signals over a specified period of time—monitor a single channel or multiple channels, set alarms, and identify irregularities. The switching unit offers flexible choices for system control. You can control external devices such as microwave switches, attenuators, solenoids, and power relays. Or use the digital inputs to sense limit-switch and digital-bus status.
Optimized for test systems
The 34980A has the performance you need for medium- to high-density switching/ measurement applications such as design verification, functional test and data acquisition. Your signals are switched to the right measurement device without compromising signal integrity. Switch your signals to the optional internal DMM and achieve optimal throughput on switch closure time. Or, if you prefer, you can easily connect to external instruments such as DMMs, scopes, power supplies, and more. What’s more, with the built-in Ethernet interface, you can control the the Keysight unit and collect data from anywhere on the network. For a complete modular solution, use the data acquisition unit together with PXI modular products when more capability is required.
The rugged instrument comes with a variety of system-ready features:
- Web browser interface shows settings at a glance and provides remote access and control
- Self-guiding front panel to configure, troubleshoot or view data
- Low EMI and efficient system cooling
- Heavy-duty cabling and connection options
- Flexible rack mounting options
- Relay counters help predict end of-life
- In-rack calibration for reduced maintenance time
- DMM measurement accuracies include the switch for simple calculations
Make system connections easily and quickly with simple, reliable connection options:
- Built-in Ethernet, USB 2.0, and GPIB connectivity
- Low-cost, standard 50- or 78-pin Dsub connectors and cables
- Detachable terminal blocks with strain relief
- Mass interconnect solutions
Easier signal routing with four 2-wire internal analog buses You can route your measurements directly to the internal DMM, or you can connect to external instruments through the analog bus connector on the rear of the mainframe. And since you have four 2-wire buses, you can dedicate one bus for use with the internal DMM and use the other three buses for module extensions or additional signal routing between modules, reducing your wiring needs. You can define up to 500 switch sequences to control complex signal routing and the order of switch closures. Assign a sequence, give it a name and then execute it with the name you created. Switch sequences are downloaded and stored in the instrument for ease of programming and increased throughput. External trigger capabilities make it easy for you to time and synchronize measurements and other events. This can help you determine when to begin or end an acquisition. Measurements you can trust Get proven performance from Agilent instruments, with the resolution, repeatability, speed, and accuracy you’ve come to expect. This unit offers built-in signal conditioning and modular flexibility. When you use it with the internal DMM, you can configure each channel independently for the measurements you choose. It includes a variety of features that give you confidence in your measurements:
- 6½ digits of resolution with .004% of accuracy with DC voltage measurements
- Alarms per channel—high limit, low limit, or both
- Math functions—use Mx+B for custom linear conversions and converting raw inputs
- Built-in thermocouple reference for temperature measurements (34921T)
- Time-stamped readings
- Add more formulas with BenchLink Data Logger Software
The integrated DMM is mounted inside the mainframe and does not consume any of the eight user-available slots. You can access the DMM through any switch module that connects to the analog bus, or directly from the analog bus connector on the rear of the mainframe. The internal DMM gives you the flexibility to measure 11 types of inputs:
- Temperature with thermocouples, RTDs, or thermistors (with 34921A)
- DC and AC voltage
- 2- and 4-wire resistance
- Frequency and period
- DC and AC current
You can control the DMM directly, or configure it to work in conjunction with the switches. Each switch channel can be configured independently for measurement functions, scale factors and alarm limits. Advanced measurement features such as offset compensation, variable integration time, and delay are also selectable on a per-channel basis. The DMM inputs are shielded and optically isolated from the unit’s earthreferenced circuitry and computer interface, and as a result, you get up to 300 V of input isolation. This is important for reducing ground-loops and common-mode voltage errors associated with long wiring runs and floating sources. Simple DMM calibration is accomplished with just the analog bus connection on the rear panel of the mainframe. You don’t need to remove the mainframe from the rack or dedicate a channel for calibration.