SMA 64
Overview
This digital multimeter was designed with a view to comply with
the safety requirements of standard IEC 61010-1. Complies
with 600 V CAT III and 1000 V CAT II measurement categories
and Category 2 contamination requirements. Before using this
instrument, please read this instruction manual and observe
the relevant safety precautions. CAT IV: Measurements on low
voltage power sources. For example, consumption meters, input
cabinets, primary surge protection devices. CAT III: Measure-
ments inside buildings or plants. For example, fixed equipment,
distribution panel, cabling, bus bars, switches, surge protection
distribution box, etc. CAT II: Measurements on circuits that are
directly connected to low voltage circuits. For example, measure-
ments on household appliances, portable devices and similar
equipment. CAT I: Measurements on electric circuits that are not
directly connected to mains.
Warning!
These operating instructions contain the informa-
tion and warnings required for the safe use and maintenance of
the unit. Read and understand the instructions for use before us-
ing the device. Failure to understand the instructions or observe
the warnings can result in serious personal injury or property
damage. For your safety, please use the probe cable included
with the multimeter. Before use, please check that your multi-
meter is intact and serviceable.
Safety Markings
Important warning Read the contents of the
instruction manual.
Risk of electric shock!
Do not attempt to disassemble or modify the unit or its acces-
sories. In case any part is damaged, immediately power off the
unit and seek the assistance of a specialist.
Grounding
Double grounding (Contact protection class II)
Fuse protected. Please replace according to the
instructions for use.
Maintenance
In order to split the outer shell of the multimeter or remove the
battery compartment first unplug the probe cable. Before open-
ing the multimeter, remove the battery and check that there is no
static electricity charge present to ensure that the multimeter’s
components are not damaged. Before opening the multimeter,
you should be aware that dangerous voltage may be present in
some of the capacitors even if the device is switched off. The
calibration, maintenance and servicing of the multimeter should
only be performed by a specialist who is completely familiar with
the operation of the multimeter and the shock hazard involved.If
not planning to use the multimeter for an extended period of time,
please remove the battery and avoid storing the unit in exces-
sively warm or humid environments. If necessary, replace the
fuse with one matching the parameters below:
F1: 5x20 mm, F 250 mA / 250 V
F2: 6x30 mm, F10 A / 500 V
Do not use any abrasives or solvents on the device. Only use a
damp cloth or mild detergent for cleaning the unit.
During Use
• If the unit is used near strong electromagnetic interference,
please note that the multimeter’s operation can become un-
stable or it may indicate malfunction.
• Never exceed the safety limits which are specified in the in-
structions for each measurement range.
• Never use the unit without its rear panel fully attached.
• When measuring voltage (except in the case of the 200 mV
measurement limit), the maximum input voltage is 1000 V DC
or 750 V AC.
• (The maximum input voltage for the 200mV measurement
limit is 250 V DC or equivalent RMS voltage).
• If measuring frequency, resistance, interruption or diode volt-
age, the maximum voltage is 250 V DC or equivalent RMS
voltage.
• When performing capacity, temperature, mA current or tran-
sistor measurements, the multimeter is protected by a fuse
(F250 mA / 250 V).
• If any irregular operation is detected on the multimeter, im-
mediately switch it off and have it serviced.
• If the measurement limits are unknown, please set the limit
selection switch to the highest position.
• Before turning the limit selection switch, disconnect the probe
cable from the measurement circuit.
• When performing measurements on TV sets or circuits with
high AC, always remember that there might be high amplitude
voltage on the test points, which can damage the multimeter.
• If the voltage to be tested exceeds the effective value of 60 V
• DC or 30 V AC, work carefully in order to avoid sustaining
an electric shock.
• If the battery symbol appears on the display, the battery must
be replaced immediately.
• Low battery voltage may result in measurement errors, elec-
tric shock, or even injury.
• Keep your fingers away from the connecting sockets.
• Do not use the multimeter in the presence of flammable
gas, vapours or dust. Before each use, check the unit in or-
der to ensure proper operation (e.g., using a known voltage
source).
• When performing CAT II and CATIII voltage measurements,
the voltage may not exceed 1000V and 600V, respectively.
General description
This instrument features a 3½ digit, 7-segment display. It can
be used to measure direct current, alternating current, DC volt-
age, AC voltage, resistance, frequency, temperature, capacity,
diodes and interruption, as well as for testing transistors. The
reading can be saved on the display. Automatic power off after
ca. 25 minutes.
Display symbols
low battery
-
negative input polarity
HV
high voltage measurement, AC 750 V or DC 1000 V
HOLD
reading saved
Digital multimeter
EN
