EATON ELECTRICAL
35
Predictive Diagnostics
device is stand alone, do not change its address.
Make
sure that the device address is unique in RS-485
network. The same addresses assigned to different
devices will cause problems and contradictions in
communications.
Rated Voltage
Should be set before voltage channel calibration.
Voltage is used in PDI calculations.
Scroll setup parameters until
VOLtAGE
appears.
Press
Enter
.
VOL-XXX.X
will appear.
Use
keys to set the rated voltage of the object under test (kV,
line-to-line).
When done, press
Enter
.
Rated Current
Should be set before current channel calibration.
Scroll setup parameters until
CurrEnt
appears.
Press
Enter
.
I-XXXXX.X
will appear.
Use
keys to set the rated current of the object under test in
Amps (usually full load or nominal current).
When done, press
Enter
.
Activate
channels
Activate PD channel that will be used for monitoring.
Any number of channels in any order can be activated. It
is preferably activate the first necessary channels and
leave all the rest inactive.
If none of channels is active, the device will not start a
measurement.
Noise channel normally should be ON.
Scroll setup parameters until
CHAnnELS
appears.
Press
Enter
.
CH01-On (OFF)
will appear.
Use
keys to set the channel to On or Off. Use
keys to scroll
the channels.
When done, press
Enter
.
Next,
nCH
will appear. Use
keys to set the noise channel to On or
Off. In most applications MUST be ON.
When done, press
Enter
.
Channel
Sensitivity
Ideally, sensor sensitivity should be determined during
off line calibration test during the coarse of the sensors’
installation. This does not always happen. Use suggested
options below in such a case. Keep in mind that you
may not be using an accurate number.
Make sure that
sensors of the same type and similar purpose have
the same sensitivity.
Recommended sensitivity, if unknown, is in
parentheses:
Scroll setup parameters until
SEnSor
appears.
Press
Enter
.
C01-10.00
will appear. This represents the sensitivity of
Channel 01 equal to 10.00 nC/Volt.
Press
Enter
to set the selected channel. Use
keys to change
sensitivity and/or channel.
Press
Enter
when finished with selected channel. Using
select
another channel.
Press
Esc
when done for all channels.
