User Manual

Sensata Technologies 4 220808
Calibration
The ISOSLICE-9 has an LED that shows which mode it is in.
Green run
Red learn span point
Amber learn zero point
Calibration of a channel:
In run mode select the input to be calibrated
Calibrate the span point
Return to run mode
Calibrate the zero point
Return to run mode
Select the Input to be calibrated
Push the raise or lower button when the LED is green. The LED will flash red between 1
and 4 times, indicating the input that will be calibrated next.
Calibrate the Span Point
When the input has been chosen push and release both buttons.
The LED will go red.
Put in the span value (e.g., 10A AC into the connected CT for the selected input channel),
wait a few seconds for the input to be averaged to a stable level then push the raise button
to confirm that the input value is the value for the span at 100%. The Isoslice unit will
check if it is using the most appropriate gain setting for the ADC. If it is, the span point has
been learned.
If the gain is not right, it will change the gain setting (green flash) then the red led will flash.
Push the raise button again to make it learn the input value with the new gain setting.
There are 8 possible gain settings, so it may be necessary to repeat this process a few
times. When the led stays red after the button has been pressed, the span point has been
learned.
Push and release both buttons to return to run mode. The LED will go off briefly (to
indicate it has learned and saved a new value) and then change to green.
Calibrate the Zero Point
Push and release both buttons
The LED will change from green to amber.
Put in the zero value (e.g., 0A AC into the connected CT for the selected input channel),
wait a couple of seconds for the input to be averaged to a stable level then push the raise
button to confirm that the input value is the value for the zero at 0.00%.
Push and release both buttons, the led will again go off briefly and then change to green.
Check the calibration has been successful by varying the input and confirming the value
shown on the Z-Port or E-100 display for the corresponding input and channel is correct.