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15
Switching on and o
The KE890/895 is switched on by briey pressing one of the function keys
Tone SOLID, Tone ALT, Continuity, ETH Link, Laser ON (KE895 model only)
or xDSL Test. A beep sounds parallel to the power-up. The device automati-
cally switches to the selected test mode and starts the execution of the test.
KE890/895 can also be turned on by briey pressing the Frequency key, but
will automatically switch to Standard mode (KE890 will also switch to Stan-
dard mode when button 6 is pressed). In standard mode, only line voltage
measurement and battery voltage monitoring are active.
The device is switched o by briey pressing the OFF button. A conrmation
tone sounds when the device is switched o as well as when it is switched on.
Battery voltage monitoring
KE890/895 checks the battery voltage every minute. If the battery voltage
falls below 6 Volt, the device warns by ashing the red LED >100 Volt three
times, in addition a warning signal sounds. If the battery voltage falls below
5 volts, the device switches o without further warning.
Time-controlled switching o (timeout) and override
In standard mode, the device turns o automatically after 30 minutes. In the
Toner SOLID and Toner ALT modes, it will not turn o until 60 minutes have
elapsed, in both cases accompanied by an o tone.
Pressing and holding the OFF key (approx. 1 minute) activates the Timeout
Override mode. It prevents the unit from switching o automatically. When
activated, a conrmation tone sounds and the green OK LED lights up briey.
Even if the timeout override mode is activated, KE890/895 can be switched
o as usual by pressing the OFF key. When the device is switched on again,
the time-controlled switch-o is activated again.
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