Preface - Testboy TV 455 Instruction Manual

®
TV 450/455

1 Preface

Congratulations on your purchase of the TV 450/455 instrument and its accessories
from TESTBOY. The instrument was designed on a basis of rich experience, acquired
through many years of dealing with electric installation test equipment.
The TV 450/455 instrument is professional, multifunctional, hand-held test instrument
intended to perform all the measurements required in order for a total inspection of
electrical installations in buildings. The following measurements and tests can be
performed:
Voltage and frequency,

Continuity tests,

Insulation resistance tests,

RCD testing,

Fault loop / RCD trip-lock impedance measurements,

Line impedance / Voltage drop,

Phase sequence

Earthing resistance tests

The graphic display with backlight offers easy reading of results, indications,
measurement parameters and messages. Two LED Pass/Fail indicators are placed at
the sides of the LCD.
The operation of the instrument is designed to be as simple and clear as possible and
no special training (except for the reading this instruction manual) is required in order to
begin using the instrument.
In order for operator to be familiar enough with performing measurements in general
and their typical applications it is advisable to read TESTBOY handbook Guide for
testing and verification of low voltage installations.
The instrument is equipped with the entire necessary accessory for comfortable testing.
6
Preface