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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 36 automatically switches on
at voltage> 120 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. 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
To contact ground potential the device is
provided with magnet, contact clamp to the
railfoot or universal clamp.
Put the contact magnet on top of the rail
or the contact clamp to the rail foot or the
universal clamp to ground potential.
The contact surface has to be clean and
free from coarse rust.
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 36 is
ready for operation and the contact to earth is tested.
Note:
In case the function test has not been successful, check the
following:
- Is there a connection to the rail?
- Battery empty? („Lo BAt“ indication on LCD)
- Test electrode screwed tightly?
- Line screwed tightly?
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!
If the message „TEST Err“ appears on the LCD, the self-test has not been successfully executed or forgotten.
The voltage test must be terminated and the self-test must first be carried out.
Earthing with magnet or contact clamp
for rail foot
Earthing with
universal clamp
Selftest with earthed rail for railway applications
Selftest with earthing rail and fixed ballpoint for
applications in switchgears
