Elma Instruments FITESTpro, Руководство пользователя

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Elma RCD Test side 45
can be seen in the gradually narrowing temperature indicator’s area.
Fig. 3.7a Indication of high temperature Fig. 3.7b High temperature after the
START key is pressed
•
Current flowing in PE, caused for example by connected appliances or capacities
between L and PE, may adversely affect the results of measurements or
measurement may be impossible. Before the measurements, therefore, remove
such appliances / capacities.
•
Before starting the measurement by the
START
key reliably connect the test tips by
the measured object. Next, check whether the displayed value of the mains voltage
is stabilized. During the measurement neither early disconnect the test leads nor
interrupt the connection by the measured object. Doing so may cause displaying of
incorrect values.
•
Results may be adversely affected and measurement error exceeded:
If leakage current flows in PE (caused for example by connected appliances or
capacities between L and PE), or if noise voltage/current is present in grounding
system or grounding system is affected by the potential of another grounding system,
or if mains voltage is unstable during measurement.
•
If the symbol is displayed simultaneously by the measurement result, it means
that the main measured value result is within the required limits.
Parameters that can be set
•
Limit contact voltage
Ucmax can be set to 50 V or 25 V. Setting can be done by the
xI
Δ
N
key. Measurement function contact voltage Uc must be selected.
•
Nominal differential current
can be set to 10 mA, 30 mA, 100 mA, 300 mA or 500 mA
by the
xI
Δ
N
key. For more details see technical data in the Chapter 5.1.
•
Multiplier of the nominal differential current
can be set to ½, 1, 2 or 5 by the
xI
Δ
N
key. For more details see technical data in the Chapter 5.1.
•
RCD type and initial polarity of the differential current
can be set by the
TYPE
key.