ion 10: Pre-scan monitor DAQ6510 Data Acquisition / Multimeter System
10-2 DAQ6510-900-01Rev. A / April 2018
Device connections
This application example uses a DAQ6510 with a Model 7700 20-channel differential multiplexer
configured to monitor a Type K thermocouple, connected to channel 101, and four DUTs (resistors)
connected to channels 102 through 105.
Figure 44: DAQ6510 Device Connections — Pre-scan Monitor
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
RMS
) can appear on
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.
To Next Page
Loading...
Need help?
General
