SMA 2101
AC/DC Clamp Meter
EN
This clamp meter was designed with a view to complying with the safe-
ty requirements of standard IEC 61010-1. Complies with the 600V CAT
III measurement category and Category 2 contamination requirements.
Before using this measuring instrument, please read this instruction
manual and observe the relevant safety precautions. CAT III: Measure
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ments inside buildings or plants. For example, fixed equipment, distri
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bution 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, measurements on household
appliances, portable devices and similar equipment. CAT I: Measure
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ments on electric circuits that are not directly connected to mains.
Warning! These operating instructions contain the information and
warnings required for the safe use and maintenance of the unit. Read
and understand the instructions for use before using 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 clamp meter. Before use, please
check that your multimeter is intact and serviceable.
Safety Markings
Important warning Read the
contents of the instruction manual.
Alternating current
Direct current
Grounding
Double grounding
(Contact protection class II)
Maintenance
Do not attempt to remove the clamp meter’s outer casing. Before open-
ing the battery compartment lid, always unplug the probe cables from
the circuit and the clamp meter. The removal of the clamp meter’s case
as well as its calibration, maintenance and servicing should only be
performed by a specialist who is completely familiar with the operation
of the clamp meter and the shock hazard involved. If not planning to
use the clamp meter for an extended period of time, please remove the
battery and avoid storing the unit in excessively warm or humid envi-
ronments. 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 measuring instrument’s operation can become unstable
or it may indicate malfunction.
• Never exceed the safety limits specified in the instructions for each
measurement range.
• Never use the unit without its rear panel fully attached.
• Remove from circuit and discharge the high voltage capacitors before
measuring resistance or interruption.
• Be very careful when working with bare cables or bus bars.
• If any irregular operation is detected on the clamp meter, immediately
switch it off and have it serviced.
• If the value to be measured is unknown, check the highest possible
measurement range on the multimeter, or whenever possible, select
the automatic measurement range mode.
• Before turning the selector dial, disconnect the probe cable from the
measurement circuit.
• Never perform resistance or interruption measurements on energized
circuits.
• 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 re
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placed immediately. Low battery voltage may result in measurement
errors, electric shock, or even injury.
• Keep your fingers away from the connecting sockets.
• Do not use the clamp meter in the presence of flammable gas, va
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pours or dust.
• Before each use, check the unit in order to ensure proper operation
(e.g., using a known voltage source).
• When measuring CAT III voltage, the voltage may not exceed 600 V.
General description
This AC/DC clamp meter features a 4 digit, 7-segment display. It can
be used to measure direct current, alternating current, DC voltage, AC
voltage, resistance, frequency, capacity, duty factor, diodes, and inter-
ruption. The minimum and maximum measured reading can be saved.
Capable of performing relative measurements, has background illumi
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nation, and automatically or manually switches measurement ranges.
The reading can be saved on the display. Switches off automatically.
Pushbuttons
SEL
If more than one secondary function is available at any
given dial setting, this pushbutton can be used to toggle
them. Each push of the button shifts to the next function.
MIN/MAX
Minimum/maximum value. When minimum value is set,
the clamp meter saves the measured minimum figure
while at maximum setting it saves the maximum figure.
Each push of the button shifts to the next function. Keep
ing the button pressed for approx. 2 seconds will cause
the clamp meter to leave the MIN/MAX function.
REL
Relative value. The current reading is stored at the mo-
ment the button is pressed, the “REL” symbol appears
on the display and the display is cleared. Afterwards,
the reading appearing on the display will be of a value
relative to the previous one. Pressing the button again or
changing functions will cause the instrument to clear the
relative reading. Keeping the button pressed for approx. 2
seconds turns off/activates the automatic power off func-
tion.
B.L/HOLD
Pressing this button will store the measured reading on
the display. Pressing the button again or changing func-
tions will cause the instrument to clear the data. Keeping
the button pressed for approx. 2 seconds turns off the
display backlight and the clamp meter’s illumination for
approx. 30 seconds.
Hz/Duty
Frequency/duty factor measurement toggle button. Each
push of the button shifts to the next function.
Input sockets
COM
common input socket for all quantities to be measured
(negative)
INPUT
Common input socket for all quantities to be measured
(positive)
Accuracy
Accuracy is ensured for one year after calibration, at an operating tem-
perature of 18 °C–28 °C and a relative humidity of 0%–75%.
Display symbols
AC
alternating current
DC
direct current
diode test
interruption test
AUTO
automatic measurement range change
MAX
save maximum value button
MIN
save minimum value button
REL
relative reading saved
automatic power off active
low battery
reading saved
%
duty factor
mV, V
voltage measurement
A
current measurement
nF, μF
capacity measurement
Ω,kΩ, MΩ
resistance measurement
Hz, kHz,MHz
frequency measurement
