Vanguard LTCA-10_40 - Manual (Page 23)

LTCA-10/LTCA-40 USER’S MANUAL
23
This is only an informational screen to remind the operator that a test is in progress. The
display duration of this message depends on the size of the winding’s inductance and the
test current selected.
NOTE
You can bypass this delay and observe the resistance value immediately. See
section 6.1 for instructions on how to select this option.
j. The LTCA-10/40 determines when the resistance reading is stable and displays the
resistance values on the LCD screen as follows:
The LTCA-10/40 will continue the test and update the resistance values on the LCD
screen. While the test is in progress, the
[ENTER]
key can be pressed to save the current
reading on the LCD to the LTCA-10/40’s internal working memory.
This feature is very convenient for storing multiple readings during a test. A typical
example of this application is an LTC or Voltage Regulator contact resistance test where
multiple readings are required. For example, the user can start the test at one tap position,
and when the reading is stable, press the
[ENTER]
key to save the reading. Then, the
user can change the tap position and save the stable reading at the new tap position by
pressing the
[ENTER]
key. This process can be repeated as needed for a maximum of 48
times per test record.
If the
[ENTER]
key is pressed, the data is saved and the SAVING TEST message will be
displayed on the LCD as shown below:
Once the data is saved, the TEST SAVED message will be displayed:
k. Press the
[STOP]
key to stop running the test. Press the
[STOP]
key a second time to
continue to the next step.
TEST IN PROGRESS
I = 1.09 AMPS
R1 = 7.272 m
Ω
R2 = 358 μΩ
* XFMR ENERGIZED! *
TEST IN PROGRESS
====> TEST SAVED! <====
I = 1.09 AMPS
R1 = 7.272 m
Ω
R2 = 358 μΩ
* XFMR ENERGIZED! *
TEST IN PROGRESS
====> SAVING TEST <====
I = 1.09 AMPS
R1 = 7.272 m
Ω
R2 = 358 μΩ
* XFMR ENERGIZED! *