Select A Ramp Or Steady-State Test; Set A Timed Test - Fluke 1550C Mode D'emploi

1550C/1555
Users Manual

Select a Ramp or Steady-State Test

The ramp-test function is an automated test that checks insulation for a
breakdown. During a ramp test, the output voltage starts at 0 V and increases
linearly (100 V/s) until it reaches the specified test voltage or until a sudden
drop in measured resistance is detected. Then, the Ramp stops, the test voltage
drops to zero, and the voltage at the breakdown point is stored in memory on
the Tester. All other test results are declared invalid if the test does not reach
the specified test voltage. If the test successfully meets compliance without
breakdown, then the only valid test results are test voltage and insulation
resistance.
To enable or disable the ramp function:
1. With the Tester turned on, push  to enter the 1.X Function Menu.
2. Push  to call the menu item.
Ramp
Indicator
GHH07.EPS
3. Push  or  to toggle the Ramp on or off. When the ramp is on a
blinking  appears in the upper left-hand corner of the display.
4. Push  or  to use the settings.  starts the test.

Set a Timed Test

You can control the length of an insulation test by setting a timer. The time
(test duration) can be set in 1-minute increments up to 99 minutes. During a
timed test, the time limit appears on the right bottom of the display, and the
elapsed time is shown in the middle of the display. At the end of the elapsed
time, the insulation test has been completed and the test is terminated.
To set a test time limit:
1. With the Tester turned on, push  to enter the Function Menu.
2. Push  or  to select the 2.Time Limit function.
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