KATC-C1 Instructions
Page 8
04/14
In the MEASURE mode the KATC-C1 is constantly calculating and displaying accuracy
measurements and thus does not react as quickly to large changes in current.
While we recommend using the RUNUP mode to set the test current and then pressing
MEASURE to begin taking measurements, it is possible to change the test current while in the
MEASURE mode. If this is done, it is important that the current is changed slowly so as to reduce
chances of damaging the comparator. As the test current is increased with the KATC-C1 in
MEASURE mode, the display on the KATC-C1 will occasionally go blank. This is normal and is
caused by the auto-ranging feature of the KATC-C1. Auto-ranging is what allows the KATC-C1
to provide excellent accuracy throughout the measurement range.
4.
After the test data are displayed, press HOLD/RUNDOWN to "freeze" the results in the display
— then reduce the current to zero.
a)
If the KATC-C1 is installed in a KCTS, the test current is automatically reduced to zero (or
near zero) upon pressing HOLD/RUNDOWN if the AUTO RUNDOWN switch (located in
the KCTS) is turned on. Refer to the KCTS Instruction Manual for more information on this
feature.
b)
The HOLD status is denoted on the KATC-C1 display by the appearance of a "box" (
¦
) next
to the display of test current.
c)
Each time the HOLD/RUNDOWN button is pressed, the current at which the displayed
results were taken is recalled to the display for a short time. The ammeter then returns to
showing the presently applied (real-time) current.
5.
Record the test data, or, if you have a computer or serial printer connected to the KATC-C1
RS-232 Serial Communications Port, the data can be sent by pressing PRINT. It is also possible to
have the computer send a command to the KATC-C1 to cause it to send the test result data. See
the section entitled
Remote Commands
for more information.
6.
Press MEASURE to clear the HOLD status and erase the test data.