MI 2087 AL2 EasiTEST
Maintenance
35
Notes:
q
Insert batteries correctly otherwise test instrument will not operate and batteries
may be discharged; see figure 27 for correct battery polarity.
5.2 Fuses
There are three fuses under battery compartment cover (see figure 27).
q
F1
=
M 0,315 A/250 V
, 20×5 mm (It protects internal circuitry of the test
instrument, if test tips are connected to mains voltage during the measurement
of continuity of protective conductors by mistake).
q
F2
=
F3
=
T 4 A/500 V
, 38×10 mm, breaking capacity 10 kA/500 V, type FLQ4,
produced by Littelfuse (general fuse on input of measurement terminals L/L1
and N/L2).
Check the fuses F2 and F3 if one of the following malfunctions is noticed:
q
“
rcd
” message is blinking after pressing the
START
key in all RCD functions as
well as in R
LINE
/Ipsc and R
LOOP
/Ipsc function.
q
“
>1999
Ω
”
message is displayed in CONTINUITY functions in spite of shorted
test leads.
q
“
>1000 M
Ω
”
message is displayed in INSULATION function in spite of shorted
test leads.
q
Check the fuse F1 if “
FuS
” message is displayed in CONTINUITY functions.
Warning:
q
Replace blown fuse with original one only otherwise the instrument may be
damaged and/or operator’s safety impaired!
5.3 Cleaning
Use soft patch, slightly moistened with soap water or alcohol, to clean the surface of
EasiTest and leave the instrument to dry totally before using it.
Notes:
q
Do not use liquids based on petrol or hydrocarbons!
q
Do not spill cleaning liquid over the instrument!
