AMETEK XT Series - Manual (Page 32)

Load Connection and Sensing
Remote Sensing
32 Operating Manual for XT Series Power Supply
Remote Sensing
Remote sensing permits you to relocate the regulation point of the power supply
from the output terminals to the load or other distribution point terminals.
The power supply provides sense connections beside the output terminals at the front
and rear panels. Use 22-24 AWG twisted, shielded pair wiring to make sense
connections.
With remote sense leads in place, the supply regulates for the displayed voltage at
the point where the sense lines are connected to the output leads (provided the sum
of these lead losses does not exceed 0.5 V). With the sense lines disconnected, the
supply regulates the voltage at the output terminals.
WARNING
There is a potential shock hazard at the sense points when using a power supply
with a rated output greater than 40 V. Ensure that connections at the load end are
shielded to prevent contact with hazardous voltages.
!
CAUTION
Operation of the supply in remote sense mode without the assured connection of
the load wires and remote sense wires to the load may damage the power
supply.
!
CAUTION
Ground the sense line shield in one place only. Locations include: the power’s
supply’s return output connection at the load, the power supply’s return output at
the negative output terminal, or the power supply’s ground binding post on the
front panel.
Note
Do not operate the supply with sense lines connected to the load without also
connecting the normal load power leads to the output terminals.
Avoid reversing positive (+) and negative (-) lead connections.
Always use shielded pair wiring for sense lines to minimize noise effects (see
“Grounding” on page 30 ).