DAQM900A 20-Channel General Purpose (Solid State) Multiplexer Module

The DAQM900A module features two sets of 10 two-wire channels. Each of the 20 channels can switch both HI and LO inputs, ensuring fully isolated inputs for either the internal DMM or an external device. For 4-wire resistance measurements, channels from Bank A are automatically paired with those from Bank B to establish the source and sense connections. Additionally, the module includes a built-in thermocouple reference junction to reduce errors caused by thermal gradients during thermocouple measurements. The DAQM900A is capable of connecting to the DAQ970A/DAQ973A internal DMM.

Key Features:

• 450 ch/s scanning

• Two- and four-wire scanning

• Built-in thermocouple reference junction

• 120 V switching

DAQ970/73A Data Acquisition System Mainframe Highlights

The 3-slot mainframe for housing DAQ plug-in modules (sold separately) has the benefit of proven Keysight measurement performance, universal inputs with built-in signal conditioning, and modular flexibility, all in a low-cost, compact data acquisition package. Mix and match by choosing from 10 switch, RF and control plug-in modules to get just the functionality you need right now - then change or add more channels later as your application grows.

As accurate as the best bench DMM available, the DAQ970A/DAQ973A features 6 1/3 digits (22 bits) of resolution, 0.003% basic dcV accuracy, and ultra-low reading noise. Combine that with scan rates of up to 450 channels/sec, and you’ve got the speed and accuracy you need to get the job done right.