4
• Remove the instrument leads immediately, if you smell
burnt cable insulation .
• Replace the battery in time to prevent electrolyte from
leaking into the multimeter .
• Do not connect the voltage source to the multimeter if
the mode switch is set to “Ω” or “
”!
• Use the multimeter only if the housing is closed .
• Use the multimeter only for measurements of the class
I or II .
• Do not use the multimeter for measurements in the class
III or IV . Do not connect voltages higher than 1000 V DC or
750 V AC to the measuring device .
OPERATION
Before putting in service
• In case the voltage and/or the current to be measured
is/are unknown, set the rotary knob on the largest
measuring range . If the accuracy on the rotary knob is
insufficient, set on a lower range and so on .
• If the device is not going to be used temporarily, put the
rotary knob in the OFF position .
• The switching of the multimeter is different for measuring
voltage and for measuring current . Parallel connection in
voltage measurement and series connection in current
measurement . In the latter case, a conductor in the power
circuit to be measured must be interrupted .
• To measure voltage, connect the multimeter shunt . To
measure the current strength, connect the multimeter
to the circuit loop to loop, to break the measured circuit,
since the current must pass through the multimeter .
• If, for example, you measure voltage, do not set the
mode switch to “Current Measurement” . In this case, you
may damage the multimeter and cause a short circuit .
• Never connect a voltage higher than 1000 V DC or 750 V
AC to the measuring device .
MEASUREMENTS
Measuring direct voltage (V DC)
• Connect the BLACK lead to the «COM» connector socket
and the RED lead to the «V/Ω» connector socket .
• Set the FUNCTION switch on the desired «V» setting and
connect the leads to the voltage source to be measured
or measuring points . Observe correct polarity (red is +
and black is -), otherwise the display shows a minus sign
before the value .
• Read offthe measured value in Volt .
Mode
Unit of
measure
Measurement accuracy
1000 V
1V
± 1,2% value ± 5 units of
measure
Input resistance 9 MΩ
Overload protection DC 1000 V or AC 750 V (Continuously at
all limits).
Hints
• In case the voltage range is unknown, you must put the
FUNCTION switch in the highest measurement range and
then reduce the range gradually if required .
• If the figure «1» now appears on the display, the measur-
and lies outside the range set . The FUNCTION switch must
be switched to a higher range .
• The maximum input voltage is 1000 V DC . Higher volt-
ages cannot be measured . Proceed extremely cautiously
with the measurement of high voltages .
Measuring alternating voltage (V AC)
Connect the BLACK lead to the «COM» connecting point
and the RED lead to the «V/Ω» connecting point .
Set the FUNCTION switch on the desired «V» setting and
connect the leads to the voltage source to be measured
or measuring points . The polarity of the measuring tips is
not relevant .
Read off the measured value in Volt .
Mode
Unit of
measure
Measurement accuracy
750 V
1V
±2,0% value ± 5 units of measure
Input resistance 10 MΩ. Frequency range 40-1000 Hz. Over-
load protection AC 750 V Effective value or DC 1000 V peak
value (constantly in all ranges).
Hints
• In case the voltage range is unknown, you must set the
function switch in the highest measurement range and
then reduce the range gradually if required .
• If the figure «1» now appears on the display, the measur-
and lies outside the range set . The function switch must
be switched to a higher range .
• The maximum input voltage is 750 V effective value .
Higher voltages cannot be measured . Proceed extremely
cautiously with the measurement of high voltages .
Measurement of current in an alternating current cir-
cuit (A AC).
Set the rotary switch to the appropriate position in sector
A . Press the trigger to open the current clamps and close
them around
one
conductor
(FIG. 3).
If the display shows a single symbol “1”, this means that
the measuring range has been exceeded . It is necessary to
switch the instrument to a higher measuring range .
Mode
Unit of
measure
Measurement accuracy
200 A
100 mА ±2,5% value + 13 units of measure
1000 A
1 А
±2,5% value + 8 units of measure
(for 800 A or less)
Overload protection AC 1200 V during 60 s. Frequency range
50...60 Hz. Indication: average value (rms).