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4. Measuring and testing
4.1 Testing voltage
As soon as the electrode is mounted to the overhead line, the present voltage is signalised.
Note:
Inducted voltage can also be displayed without direct contact to the overhead line.
No operating voltage
Operating voltage
No voltage:
Interference voltage < Limit Ut:
Voltage > Limit Ut:
Ut = response voltage. The value of Ut is labelled on the name plate.
By keeping the key pressed, the Ut value is displayed on the LCD after displaying „oFF“.
The software version is then displayed.
Attention!
With voltage of more than 36 kV AC / DC „OL“ without numerical value appears and an acoustic signal accurs. In
this case the test must be canceled immediately!
Note:
Also on grounded overhead lines interference voltages up to 300 V can be displayed.
The voltage-tester is equipped with an steady function monitoring. If, during voltage tests „ - U - Err“ is displayed,
the tester is faulty and may not be placed into operation! The voltage-tester is equipped with an steady function
monitoring. If, during voltage tests „ - U - Err“ is displayed, the tester is faulty and may not be placed into operation!
Continuous monitoring
For safety, the TT 36 can be hooked up in the overhead line during the work.
Should a voltage > 230 V return, the TT 36 switches on automatically and warns through its 360 ° LED display as well
as by acoustic signal.
Frequency indication
Simultaneously to voltage indication, the upper display line indicates the mains frequency in Hz.
With direct voltage „dc“ is indicated.
AC/DC Polarity
Type of voltage is indicated by symbole „~“ for AC and no sign or „–“ for DC. „-“ appears when minus is applied with
direct voltage to the test electrode with display part. When plus is applied to the test electrode with display part,
no sign appears.
Application in moist environments
The TT 36 is approved for indoor and outdoor applications. In case of precipitation, the device has to be wiped dry
before usage. Workings in case of dense fog and impaired visibility are not approved.
Display illumination white, off after 5 s
Display illumination red
Green LED lights up
Display illumination green or off
Display 000V
Red LED lights up
Display illumination red
Indication value for voltage level and
frequency and
symbol appears on the
illuminated display, acoustic signal appears
Display illumination green
Green LED lights up
Display illumination green
Display voltage value
