KATC-C1 Instructions
Page 11
04/14
ERROR CURRENT TOO HIGH
The Error Current is defined as the difference between the secondary currents of the Reference Trans-
former and the Transformer-Under-Test. If the Error Current exceeds 1.5 amperes the KATC-C1 will
display this message and attempt to remove test current by opening the interlock and initiating a run
down of test current.
AUTORANGING
This message indicates that the KATC-C1 has received an internal indication of a hardware error. The
comparator responds by displaying this message and attempting to restart the measurement cycle.
RUNUP
This message indicates that the KATC-C1 is in RUNUP mode. This mode is used when increasing the
test current prior to taking measurements. The MEASURE push-button toggles between RUNUP and
MEASURE modes.
MEASURE
This message indicates that the KATC-C1 is in MEASURE mode. This mode is used when taking
measurements. The MEASURE push-button toggles between RUNUP and MEASURE modes.
HOLD/RUNDOWN
This message indicates that the KATC-C1 is in HOLD/RUNDOWN mode but that there is no valid
data to display.
INVALID SWITCH SETTING
This message indicates that the REFERENCE TRANSFORMER switch is set to 1 ampere and the
TRANSFORMER-UNDER-TEST switch is set to 5 amperes. This combination is not valid. One of
the two switch settings must be changed in order to perform a valid test.
SET CURRENT TO 0.00
This message is displayed if the REFERENCE TRANSFORMER or TRANSFORMER-UNDER-
TEST switches were changed with test current applied. It is necessary to reduce test current to zero
prior to changing the setting of these switches.
XMTR not empty
This message indicates that the Serial (RS-232) Communications Port was not able to complete
sending the test result data. This could be caused by a defective cable connection to the receiving
device or incorrect baud rate selection on the receiving device.
*** (Over-range Indicators)
If the limits of ratio error, phase error, or accuracy class (as defined under
Specifications
, above) are
exceeded, over-range indicators (***) will appear in the appropriate places on the display.
