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7.
Intermittent contact
If you are operating a termination unit such as wall outlet, cable or adaptor where you supect an
intermittent contact, IE-CT will help you to detect this error. Intermittent contact detection requires
constant checking of the connections when the termination unit is moving. IE-CT offers an additional
operation mode. Terminate the unit to be tested between the IE-CT Mainframe and one of the Test
Boxes (see chapter 6.2) to check for intermittent contact.
To activate the intermittent contact test mode press Start Key (D) and Step Key (H) simultaneously
when turning on the IE-CT Mainframe.
First, IE-CT carries out a self-test where the numeric display shows the digits 0 to 9 one after another,
then those LEDs light up that have been activated by the Selection Switches (C).
Now, IE-CT is in the intermittent contact test mode and is testing continuously the 9 contacts at the
connection for continuity. If the connection of the tested unit is moved and the intermittent contact
interrupts wire connections, the respective LED turns out to display this interruption. To leave the
intermittent contact test mode press the Start Key.
If you press the Step key, the IE-CT displays the result of the self-test and the number of the connected
Test Box.
If no key is pressed the IE-CT will shut off automatically 30 s after the last connection interruption.
8.
Self-test
Self-test run
The self-test includes a split pair test of the connection cable.
•
The green LED (G) flashes during the self-test.
•
The numeric display shows a dash during the following split-pair-test.
•
Press the Step Key to close the split pair test.
•
The numeric display (B) now shows the digits 0 to 9 one after another.
•
Then those red LED (F) light up that were selected previously with the Selection Switches.
This allows to control the function of the 9 Selection Switches (C).
•
The red LEDs go out after the Step Key (H) has been pressed and the test result is displayed.
Test result
The green LED lights permanently and the number of the respective Test Box flashes in the numeric
display if no error was detected.
The green LED does not light in case of an error. The detected error is displayed in the numeric display
as it is described on the label on the IE-CT Mainframe.
End of the self-test
The self-test is finished by pressing the Step Key or automatically after 2 minutes.
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