U2781A Datasheet, PDF (37/76 Pages) Keysight Technologies – USB Modular Products

U2802A 31-Channel Thermocouple Input Device
Features
–– Up to 31 thermocouple inputs
–– Supports thermocouple type J, K,
R, S, T, N, E, and B
–– Up to 10 V voltage input range
–– Open thermocouple detection
–– Built-in isothermal terminal
construction
–– Built-in thermistor
–– Built-in zeroing function
–– Sampling rate of 500 kSa/s for
overall module
–– Sampling rate of 10 kSa/s total for
all channels in thermocouple mode
–– Configurable for voltage input
or thermocouple input mode
independently on each channel
Introduction
The Keysight U2802A is a 31-channel thermocouple signal conditioning
module with a built-in thermistor for cold junction compensation. The U2802A
is designed to convert low input voltage signals (less than ±100 mV) from a
thermocouple into an output voltage range suitable for data acquisition devices
(±10 V). The U2802A device is to be used in conjunction with the Keysight
U2355A or U2356A model DAQ device to enable temperature measurements
using thermocouples. It works as a standalone device attached to a single DAQ
device via two SCSI-II 68 conductor cables. The U2802A is compatible with eight
standard thermocouple types and is suitable for a wide range of applications in
various industrial environment.
Features to meet your demands
–– 31 input channels that can be independently configured to either
differential thermocouple input mode, single-ended voltage input mode,
or differential voltage input mode using two input channels set to voltage
input mode
–– Supports the standard thermocouple types defined in the NIST ITS-90
Thermocouple Database
–– Error detection for open thermocouple channels
–– Built-in isothermal construction on terminal block for improved
measurement accuracy
–– Built-in zeroing function to compensate for overall system offset errors due
to temperature drift and long term drift
–– Up to ±10 V input voltage range for higher voltage inputs
–– Quick and easy USB setup
–– Robust, cost-effective, and user
friendly
Applications
The U2802A thermocouple input device is designed for robust and demanding
industrial applications. This product is suitable and ideal for thermocouple
measurement applications such as,
–– product thermal analysis and characterization,
–– environmental chamber profiling,
–– process monitoring in consumer electronics markets,
–– material properties testing in education environments,
–– study of electronic temperature properties, and
–– appliances testing.
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