HT EASYTEST - Lo: Continuity of Protective Conductors with 10 A

EASYTEST-COMBI519
EN - 29
6.4. LO: CONTINUITY OF PROTECTIVE CONDUCTORS WITH 10A
This function allows measuring the resistance of protective and equipotential conductors
with a test current >10A by using the EQUITEST optional accessory connected to the
instrument through the C2050 cable. The optional accessory EQUITEST must be directly
powered by the mains on which measurements are performed. For detailed information,
please refer to the user manual of the EQUITEST accessory.
CAUTION
• The instrument can be used for measurements on installations with
overvoltage category CAT IV 300V to earth and max 415V between
inputs.
• We recommend holding the alligator clip respecting the safety area
created by the hand protection (see § 4.2).
• Check that no voltage is present at the ends of the item to be tested
before carrying out a continuity test.
The results may be influenced by the presence of auxiliary circuits
connected in parallel with the item to be tested or by transient currents.
• Continuity test is carried out by supplying a current higher than 10A in
case the resistance does not exceed ca. 0.7 (including resistance of
the test cables). The 4-wire method allows extending the test leads
without any preliminary calibration.
1.
Press the MENU key, move the cursor to Lo in the main
menu by means of the arrow keys (,) and confirm
with ENTER. Subsequently, the instrument displays a
screen similar to the one reported here to the side.
Lo 15/10 – 18:04
R
Itest
=
=
- - - 
- - - A
0.500 
MAN
Lim.
INFO
MODE
2.
Use the ,  keys to select the parameter to be modified, and the ,  keys to
modify the value of parameters:
➢ Lim →
this virtual key allows the selection of the maximum limit to consider the
measured value correct. It is possible to set a limit included in the range:
0.003 ÷
0.500
 in steps of 0.001
➢ MODE → The virtual key allows the setting of the measurement modes. The
following options are possible: MAN (the measurement is activated manually by
using the GO/STOP key), AUTO (the measurement is automatically started after
connecting the EQUITEST accessory to the cable under test without pressing the
GO/STOP key
3.
Connect the EQUITEST accessory to the mains
(230/240V – 50/60Hz) and check that the green LED
lights up. Connect the accessory to the instrument
through the C2050 cable. Subsequently, the “Conn.”
message is shown indicating the correct detection by the
instrument.
Lo 15/10 – 18:04
R
Itest
=
=
- - - 
- - - A
0.500 
Conn.
MAN
Lim.
INFO
MODE