User manual

Gx Series
EN - 5
2. GENERAL DESCRIPTION
2.1. FOREWORD
This user manual is referred to the following models MACROTESTG1, MACROTESTG2,
MACROTESTG3, COMBIG2, COMBITEST425 and COMBIG3. The model
COMBITEST425 is the same of COMBIG2. Unless otherwise specified, the “instrument” is
referred to MACROTESTG3 model. The following Table 1 shows the possible functions
Symbol Acronym Measurement description
MACROTEST
G3
MACROTEST
G2
MACROTEST
G1
COMBI
G2
COMBI
G3
RPE
Continuity test of earth,
protective and equipotential
conductors with test current
higher than 200mA and
open-circuit voltage
between 4V and 24V.
    
M
Measurement of insulation
resistance with continuous
test voltage of 50V, 100V,
250V, 500V or 1000V
   
RCD
Tests on molded case RCD
(STD) and without integral
current breaking device
RCD (
) General and
Selective of type AC (
),
A (
) and B ( )
  
LOOP
Measurement of overall
earth resistance in sockets
with no residual current
protection tripping (Ra )
and measurement of line
impedance and of fault loop
(Loop P-N, P-P, P-PE) with
calculation of the assumed
short-circuit current (Ipsc) in
Standard or IMP57 mode
(with high resolution by
means of optional
accessory IMP57)
  
EARTH
Measurement of earth
impedance and ground
resistivity by voltammetric
method and measurement
by using optional clamp
T2100
  
SEQ
Detection of phase rotation
in a generic three-phase
system with 2- or 1-terminal
measuring method
  
AUX
Measurement of
environmental parameters
(Temperature, Humidity,
Illuminance) by using
optional probes
  
LEAKAGE
Real-time measurement of
leakage current by using
optional clamp HT96U
  
ΔV%
Measurement of percentage
voltage drop on mains lines
  
PQA
Real time measurement of
main parameters (powers,
harmonics, power factor)
   
Table 1: Characteristics of models