Datasheet

37
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.
U2802A 31-Channel Thermocouple Input Device
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.
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