HT instruments MACROTEST 5035 - Manual (Page 6)

MACROTEST 5035
EN - 5
2. GENERAL DESCRIPTION
Dear Customer, we thank you for your patronage. The instrument you have just purchased
will grant you accurate and reliable measurements provided that it is used according to the
present manual’s instructions.
The instrument was designed to grant the user the utmost safety conditions thanks to a
new concept assuring double insulation and over voltage category III.
2.1. FEATURES
LOW Ω:
Continuity test of earth, protective and equalizing potential conductors with
test current higher than 200mA and open circuit voltage ranging from 4V
to 24V.
M Ω:
Measurement of insulation resistance with DC test voltage 50V, 100V,
250V, 500V or 1000V.
RCD
: Measurement on common and/or selective RCDs AC type ( ) of
the following parameters:
Tripping time.
Tripping current.
Contact voltage (U
t
).
Overall earth resistance (R
a
).
Under this mode the instrument can measure the overall earth
resistance without causing RCD tripping.
RCD
: Measurement on common and/or selective RCDs A type ( ) of
the following parameters:
Tripping time.
Tripping current.
Contact voltage (U
t
).
Overall earth resistance (R
a
).
Under this mode the instrument can measure the overall earth
resistance without causing RCD tripping.
LOOP : Measurement of line and fault loop impedance with calculation of
prospective short circuit current. Indication of phase rotation
sequence.
R
a15mA
: Measurement of fault loop impedance between earth and phase
conductors with current of 15mA and calculation of prospective short
circuit current.
EARTH ρ:
Measurement of earth resistance and earth resistivity.