Datasheet

36
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 Agilent 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 Agilent
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