34970A/(2)34901A/34903A - Keysight (Agilent) Data Acquisition

Keysight Agilent 34970A Data Acquisition / Data Logger Switch Unit with Qty 2 34901A 20-Channel 2/4-Wire Modules and Qty 1 34903A 20-Channel Actuator/GP Switch Module

Features:
Up to 120 Channels
6 1/2-digit (22-bit) internal DMM
Measures 11 functions without external signal conditioning
3-slot mainframe, offers up to 96 matrix crosspoints or 120 single-ended channels
50K readings of non-volatile memory holds data when power is removed
Monitor display mode lets you keep an eye on tests in progress
Scaling function for converting raw inputs into user-defined units
HI/LO alarm limits on each input channel, plus 4 TTL alarm outputs
Battery-backed real-time clock
8 switch and control plug-in modules
Task-oriented, self-guiding menus
Built-in GPIB and RS-232 interfaces

Description:
Keysight Agilent 34970A data acquisition / data logger switch consists of a three-slot mainframe with a built-in 6 1/2 digit digital multimeter. Each channel can be configured independently to measure one of 11 different functions without the added cost or hassles of signal-conditioning accessories. Choose from eight optional plug-in modules to create a compact data logger, full-featured data acquisition system or low-cost switching unit. On-module screw-terminal connections eliminate the need for terminal blocks and a unique relay maintenance feature counts every closure on every switch for easy, predictable relay maintenance. Our most popular module 34901A features a built-in thermocouple reference and 20 two-wire channels.

34901A Features:
20-channel multiplexer
Two- and four-wire scanning
300 V switching
60 ch/s scanning
Built-in thermocouple reference junction

34901A Description:
The Keysight 34901A module for the 34970A/34972A data acquisition/switch unit is the most versatile multiplexer for general purpose scanning. It combines dense, multi-function switching with 60-channel/second scan rates to address a broad spectrum of data acquisition applications.

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

34903A Highlights:
20-channel actuator/GP switch
SPDT (Form C) latching relays
300 V, 1 A actuation and control

34903A Description:
The Keysight Agilent 34903A is a general-purpose switch module for the 34970A/34972A data acquisition/switch unit. It has 20 independent single-pole, double-throw (SPDT) relays and is used to cycle power to products under test, control indicator and status lights, and to actuate external power relays and solenoids. Combine it with matrix and multiplexer modules to build custom switch systems. Its 300 V, 1 A contacts can handle up to 50 W, enough for many power line switching applications.