MI 3110 EurotestIM
Safety and operational considerations
7
❑
All normal safety precautions must be taken in order to avoid risk of
electric shock while working on electrical installations!
Warnings related to safety of measurement functions:
Testing PE terminal
❑
PE test probe (TEST key) is activated, but does not inhibit selected test if voltage
is detected.
Notes related to measurement functions:
General
❑
The
indicator means that the selected measurement cannot be performed
because of irregular conditions on input terminals.
❑
PASS / FAIL indication is enabled when limit is set. Apply appropriate limit value
for evaluation of measurement results.
❑
In the case that only two of the three wires are connected to the electrical
installation under test, only voltage indication between these two wires is valid.
Z-LINE / Voltage drop
❑
High fluctuations of mains voltage influence the measurement results. The noise
sign
is displayed in the message field in this case. Repeat the measurement.
❑
Specified accuracy of tested parameters is valid only if mains voltage is stable
during the measurement.
❑
If the reference impedance is not set the value of Zref is considered as 0.00 Ω.
❑
The Zref is cleared (set to 0.00 Ω) if pressing CAL key while instrument is not
connected to a voltage source.
❑
If the measured voltage is outside the ranges,
ΔU result will not be calculated.
Testing of Insulation monitoring devices (IMD)
❑
It is recommended to disconnect all appliances from the tested supply to receive
regular test results. Any connected appliance will influence the insulation
resistance threshold test.
❑
The displayed resistances and currents are indicative only. Displayed resistance
can significantly differ from the actual resistance the Eurotest simulates. If IMD’s
with very low test currents (below 1mA) are checked the displayed resistance
value is typically lower (and current higher) than the actual simulated resistance.
The difference is lower for lower set resistances.
