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3. Putting into operation
3.1 General information
Switching on:
The device must be switched on with button and the self-test (see 3.4) must be carried out.
For safety the TT 1 automatically switches on
at voltage> 200 V AC / DC.
Switch-off:
Press button until „oFF“ is indicated. When no voltage is applied, the device switches off auto-
matically after 180 s after the self-test, when no voltage is applied.
The display illumination switches off after approximately 5 s when no voltage is applied.
3.2 Battery
Your instrument is already supplied with 6 x AA batteries in accordance with IEC LR6 (Alkaline) or IEC FR6 (Lithium).
The battery status is indicated by a battery symbol on the display (see section 5).
You need to change the battery of the device before continuing with testing when the empty battery symbol
on the display flashes.
3.3 Establishing contact with earth
The contact surface has to be clean and free from coarse rust.
Put the contact magnet on top of the rail or clamp the rail foot clamp firmly to the rail or screw
the universal clamp firmly to earth potential.
3.4 Testing correct display and function (self-test)
In accordance with EN 50110-1 (VDE 0105-1) voltage testers must be checked if they function correctly,
briefly before and whenever possible after the use, for determining absence of voltage.
Step 1 – Test of the display
The device must be switched off for the self-test. Press and hold button .
All display segments light up on the display, the backlight changes between
red and green and the 2 LEDs lights up and an acoustic signal occurs.
Release button „TEST“ is indicated on the display.
Step 2 – Check test circuit and protective resistors
Hold the test electrode to the
earthed rail. If „Rdy“ appears
and the green LED lights up,
then the MultiSafe TT 1 is
ready for operation and the
contact to earth is tested.
Note:
In case the function test has
not been successful, check the
following:
Testelectrode and earth-
connection connected with
rail / earth potential?
Test electrode screwed tightly
or battery empty?
Repeat the function test
!
Attention!
If one of the displays fails during the self-test – even if only partial failure occurs – or if the instrument does not
indicate a function standby, the voltage tester may not be placed into operation!
Earth connection with contact magnet or rail foot clamp
Earth connection with universal clamp