11.0 Built in fuses
The instrument measurement inputs are protected
by fuses, described in Section 13, Technical Data.
Both fuses are housed within the test instru-
ment: Fuse F1 is located within the input circu-
it of L1 (or L). Fuse F2 is located within the input
circuit of L3 (or PE). To replace the fuses, you
must open the instrument TELARIS 0100 plus.
The fuses may only be replaced by our factory
service department.
You may only use fuses complying with the
current values, voltage values, switch off cha-
racteristics and capacities as stipulated in our
technical data section.
11.1 Display for Tripped Fuses
If during the measurement, the TELARIS 0100
plus displays the measurement data described
below, this indicates that the respective fuse has
tripped.
The fuse must be replaced and the measure-
ment instrument must be returned to our fac-
tory or an authorised service department for
overhauling.
Function "Low Ohm":
Display >19.99 Ohm in spite of short-circuited
test leads: Fuse F1 has tripped.
For the function "Rins":
Display >199.9 MOhm in spite of short-circuited
test leads: Fuse F1 has tripped or the measurement
is cancelled. The following symbols are briefly di-
splayed: 'Attention' (1) and 'Uext' (5): Fuse F1 has
tripped.
For the function RI, IPSC - Internal Line Resistance
Display >1999Ohm also for sockets, which pos-
sess a known low internal resistance (other elec-
trical loads do function): Fuse F1 has tripped.
If the fuse F2 is faulty, the socket test will indicate a
PE error, which will disappear when touching the PE
electrode (25). During the PE electrode contact the
measurement may be started. The internal resi-
stance measurement between both phases works
correctly if the fuse F1 is in good condition.
Functions "Rs”:
Display >1999Ohm also for sockets, which pos-
sess a lower loop resistance: Fuse F1 has tripped.
If the fuse F2 is faulty, the socket test will indicate a
PE error, which will disappear when touching the PE
electrode (25).
RCD-Test
Display UB>UL also for sockets, which are in good
condition: Fuse F1 has tripped.
If the fuse F2 is faulty, the socket test will indicate a
PE error, which will disappear when touching the PE
electrode (25).
The rotary field recognition and the voltage me-
asurement facilities function even if fuses F1
and/or F2 have tripped.
12.0 Calibration Interval
We suggest a calibration interval of one year. If the
instrument is used very often or if it is used under
rough conditions we recommend shorter intervals.
If the instrument is used few times only the calibra-
tion interval can be extended on to 3 years.
38
Built in fuses
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