Delphin Expert Logger Manual page 266

Expert Logger
sensor signals as
between the two sensor signals as an
The reference potential of a measurement circuit of an analogue input for a
device occurs by a change of channel of the sensors' different reference
potentials. Depending on the input circuit of the various device inputs, the
difference voltage U
specified maximum values. These are the 'Permissible differential voltages
from channel to channel' specified in the
Delphin Technology AG
green
arrows and U mess, and the potential difference
between certain channels, may not exceed
Difference
WARNING!
Connecting terminals carry electrical potential from
the attached sensors/actuators.
Before coming into contact with the connections,
ensure the power is off. Check for any voltages at the
connecting terminals when the attached sensors have
varying degrees of electrical potential or when they
have high electrical potentials with earthing, for
example, when measuring electrical current for a
mains voltage phase.
Differences in electrical potential between two chan-
nels of a module can not be determined from the meas-
urement data.
266
orange
arrow and U
Technical specifications
Expert
.
Difference
.
Logger Manual
Januar 2018