5
RMO600 Functionality
4 Functionality
4.1 Single Test
The RMO600 generates a filtered (true) DC current and outputs it in an
automatically regulated current ramp. The current increases with a constant
slope from zero up to a set maximum value. When the current has reached its
maximum, RMO600 measures the resistance of the test object. After test the
output current ramps back down to zero with a constant slope. By sloping the
current up and down, magnetic transients are virtually eliminated.
4.2 Continuous Test
RMO600 can generate DC current continuously using the
Cont
menu. In this
menu the current can be chosen the same way like in the
Sing
menu, but the
duration of the test can be preset. The test is started pressing the
Ω
button.
During the test, a new result is shown on the display and stored into the PC
(RMOWin) each second. Using RMOWin the result can be printed like an
Excel table which later can be shown as a diagram and used for a report.
Test is completed when the test time previously set in the menu has elapsed, or
when the
STOP
button is pressed.
By pushing
STOP
button test could be performed at any time. In case of test
interruption by pushing the
STOP
button, the last measured result will remain
saved in the internal memory.
Upon expiry of the selected test lasting time, the last result remains saved at
selected memory location.
Note:
At the start of the test (Single and Continuous), a check of cables
connection is done. In case of disconnection, an alarm is activated,
and the error message is shown on the display.
Voltage sense cables disconnection, occured during the test, will cause
an erroreous result. The display will not show this asan error message.
During tests the high continued DC current will heat up the test set. To
prevent RMO600 from overheating, duty cycles apply. The duty cycles
depend on the used test current, please refer to section "Duty Cycles".
