EATON ELECTRICAL
52
Predictive Diagnostics
Do not calibrate Temperature channel without a necessity! It is pre-calibrated at the factory. Temperature
input channel uses the resistance temperature detector (RTD) as a sensor. RTD can vary by type and
resistance. If no other option is specified by the user at the time of ordering, InsulGard is supplied and
calibrated for the Platinum (Pt) 100 Ohm RTD. Use of any other RTD type will require a hardware change
and recalibration in the field. The field recalibration of the temperature channel is addressed in Appendix
3
Do not calibrate humidity channel without a necessity! It is pre-calibrated at the factory.
Voltage and Current input channels are normally calibrated on site. Sensors must be connected and the
equipment energized, carrying a load. Voltage and Current calibration MUST be done after their Rated
values were set. Ask an operator about current % of current and voltage to the rated (Vc and Ic).
Determine kv=Vc/Vd and ki=Ic/Id.(for the manual mode only).
Scroll setup parameters until
CALibr U
appears.
Press
Enter
.
InPCoEFF
will appear. This is the prompt for manual coefficient entering.
Use
keys and
CLcCoEFF
will appear. This is the prompt for automatic detection.
If press
Enter
. in automatic mode
UPc-000.0
will appear
Use
keys to enter % of the rated voltage currently present on the object.
Press
Enter
.
The calculated coefficient will be displayed:
U-XXXX.XX
Press
Enter
.
If press
Enter
. in manual mode
U-0001.00
will appear
Use
keys to enter manually the coefficient (
k
V
).
When done, press
Enter
.
Scroll setup parameters until
CALibr I
appears.
Repeat the same procedures as for the voltage
When done, press
Enter
4-20 mAmps Interface Calibration
The interface is optically isolated and powered from InsulGard. It is normally pre-calibrated at the factory.
This output can be calibrated in order to adjust for specific circuitry. At this procedure the device will set 5,
7, 9, 11, 13, 15, 17 and 19 mAmps on its output. If receiving interface reads differently, its values can be
entered into InsulGard, which will calculate linear approximation with the least square method.
♦
Scroll setup parameters until
CAL 4-20
appears.
♦
Press
Enter
.
05.00
will appear. Use
keys to set the value that receiving device reads.
♦
Press
Enter
.
07.00
will appear. Use
keys to set the value that receiving device reads.
♦
Press
Enter
.
19.00
will appear. Use
keys to set the value that receiving device reads.
♦
Press
Enter
.
A XXXXX
will appear.
♦
Press
Enter
.
B XXXXX
will appear. These are coefficients in the linear approximation.
♦
When done, press
Enter
.
Noise Channel Offset for Each Signal Channel:
Noise channel offset allows set noise channel level on –5 - +5 magnitude zones relatively to signal
channel independently for each signal channel. As default, all channels have +1 zone noise channel
offset. Do not change unless necessary.
♦
Scroll setup parameters until
nCHOFFS
appears.
♦
Press
Enter
.
CH01 X
will appear. Use
to set desirable offset and
to scroll channels.
♦
When done, press
Enter
.
