Thermocouple Temperature Scanning - Keithley DAQ6510 User Manual

DAQ6510 Data Acquisition / Multimeter System User's Manual
8. Press the POWER switch on the front panel to turn on the instrument.
9. Set the TERMINALS switch to rear.
10. Plug the USB flash drive into the port on the front of the instrument.
The remaining connections are the thermocouples to the DUT, which typically use soldering, thermal
compound, polyimide tape, or conductive epoxy.
To prevent electric shock, test connections must be configured such that the user cannot
come in contact with test leads or any device under test (DUT) that is in contact with the
conductors. It is good practice to disconnect DUTs from the instrument before powering the
instrument. Safe installation requires proper shields, barriers, and grounding to prevent
contact with test leads.
There is no internal connection between protective earth (safety ground) and the LO
terminals of the DAQ6510. Therefore, hazardous voltages (more than 30 V
LO terminals. This can occur when the instrument is operating in any mode. To prevent
hazardous voltage from appearing on the LO terminals, connect the LO terminal to protective
earth (safety ground) if your application allows it. You can connect the LO terminal to the
chassis ground terminal on the front panel or the chassis ground screw terminal on the rear
panel. Note that the front-panel terminals are isolated from the rear-panel terminals.
Therefore, if you are using the front-panel terminals, ground to the front-panel LO terminal. If
using the rear-panel terminals, ground to the rear panel LO terminal. Failure to follow these
guidelines can result in injury, death, or instrument damage.

Thermocouple temperature scanning

This application demonstrates how to use the DAQ6510 to measure temperature at ten different
points on a DUT every minute over a 24-hour period. During this test, all scan data is automatically
written to a USB flash drive connected to the port on the instrument.
For this application, you will:
• Configure the instrument for ten channels of Type K thermocouple measurement using internal
cold junction correction (CJC).
• Enable detection of open leads and offset compensation for more accurate readings.
• Configure the instrument to scan all channels (1 to 10) once a minute for 24 hours.
• Automatically export the data to a USB flash drive for each completed scan.
• Enable the auto-restart feature to ensure the continuation of progress in the event of power
failure.
• Check the status of the scan progress as it is running.
• Pause the scan and move the data to a computer to begin analysis, prior to scan completion.
• Analyze graphical data of the scan in progress.
• Learn how to program the instrument through the front panel user interface.
• Learn how to program the instrument using a remote communications interface with SCPI and
TSP code commands.
DAQ6510-900-01Rev. A / April 2018
Section 5: Scanning temperature using thermocouples
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