OPERATING MANUAL MMR-630 Revision 1.6
21
Information of a 50Hz noise whose value is within the range be-
tween 100 and 500mV. It is possible to perform measurements,
but the measurement error may be increased (to 1%).
Impossible measure!
Voltage of the 50Hz noise exceeds 0.5V for R
≥0,2mΩ or 100mV
for R<0,2m
Ω. Measurements are blocked. Message and two
long sound signals
after the
START
button is pushed.
Information regarding a limitation of the measurement current
which is a result of the limit setting realised by means of the ro-
tary knob, excessive resistance of the measurement leads or
excessive inductivity of the measured object.
Information regarding charging of an inductive object.
Information regarding a discharged inductive object.
Information regarding overflow of the measurement range.
Information displayed at the right side of the screen during a
measurement regarding a temporary overflow of the measure-
ment range during charging an inductive object.
Voltage on the object!
A message with a long sound signal
means the voltage at the
terminals U
1
-U
2
or U
1
-I
1
or U
1
-I
2
or U
2
-I
1
or U
2
-I
2
of the meter ex-
ceeds 50Vrms or the voltage at the terminals I
1
-I
2
of the meter
exceeds 6Vrms.
Disconnect the meter from the tested object
immediately!
Voltage on the object!
A message with a long sound signal
means the voltage at the
U
1
-U
2
terminals of the meter exceeds 6Vrms, but it is lower than
50Vrms. Disconnect the meter from the tested object!
No continuity
in U circuit!
Lack of continuity of the voltage circuit. A message and two long
sound signals
after the
START
button is pushed.
No continuity
in I circuit!
Lack of continuity of the current or the current and voltage cir-
cuit. A message and two long sound signals
after the
START
button is pushed.
Unstable conditions!
Unstable conditions due to incorrect contact of the measurement
leads or excessive inductivity of the object, which preclude
measurements.
Summary of Contents for MMR-630
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