3B Scientific Digital Multimeter E User Manual
3B SCIENTIFIC
Digital Multimeter E 1006809
Instruction sheet
05/12 ALF
®
PHYSICS
1 Measuring probe
1a Finger guards
2 Measurement socket “20 A“for
current measurement 20 A
range (plus)
3 Measurement socket “A” for
current measurement for up to
2 A (plus)
4 Measurement socket “COM“
(minus)
5 Measurement socket “V/Ω“ for
voltage and resistance meas-
urement (plus)
6 Transistor test socket
7 Measurement range dial
8 Button Hold function
9 On/Off switch
10 Display
11 Unlock button
!
1. Safety instructions
The Digital Multimeter E conforms to the safety
requirements for electrical equipment for measurement, control and laboratory use in DIN EN
61010 part 1. Safe operation of the apparatus is
guaranteed with correct handling. However,
safety is not guaranteed if the apparatus is handled improperly or carelessly.
• Read this manual carefully before using the
digital multimeter and follow the instructions!
• Before using the meter, check the case and
test leads for any damage. In the event of
any malfunction/operational defect or visible
damage, do not use the meter. Pay particular attention to the insulation surrounding the
measurement sockets.
• Use with caution when working above 30 V
ACrms, or 60 V DC. Such voltages pose a
shock hazard.
• The limit of the measurement range must
not be exceeded. If the values of the measurand are unknown, always switch from a
higher measurement range to a lower one.
• When measuring current, turn off circuit
power before connecting the meter in the
circuit.
• Connect the common test lead before you
connect the live test lead. When you disconnect test leads, disconnect the live test lead
first.
• When using the measuring probes, keep
your fingers behind the finger guards on the
probes.
• Do not operate the meter around explosive
gas, vapour, or dust.
• Do not conduct measurements in a humid
environment. Work area, hands, shoes and
floor must be dry.
• To avoid false readings, which could lead to
possible electric shock or personal injury,
replace the batteries as soon as the low bat-
tery indicator (
• Before the case is opened, the meter has to
be switched off and the leads must be disconnected from the meter.
• Never use the meter when the case is open.
• When disposing empty batteries follow the
local regulations. Never dispose of them in
the regular household garbage.
+ -
) appears.
1
2. Symbol legend
!
Read instruction sheet
Dangerous voltages
V DC voltage
A DC current
V AC voltage
A AC current
Diode and continuity test
hFE Current amplifying factor of a transistor
Ω Resistance
+ -
Empty battery
3. Description
The Digital Multimeter E is a robust, battery
operated multimeter with a 3½-digit LCD display
for measuring voltage, current and resistance as
well as for diode and hFE gain testing.
All measurement ranges are selected by means
of a rotary dial. All measurement ranges are
protected against overload except the 20 A
range.
The meter is equipped with a hold function,
negative polarity indication, over range indication, low battery indication and automatic switch
off after 15 minutes. After the power is automatically switched off it needs to be turned off and
turned on again to continue the power.
The digital display is folding for ease of reading
and on the backside there is a fold out prop for
standing the device on a table.
4. Equipment supplied
1 Digital multimeter
1 Pair of measuring probes
1 Battery
1 Instruction manual
5. Technical data
General specifications
Display: 3½- display LCD,
24 mm, max. 1999
Operating voltage: 9 V battery 6F22
Fuse: F2A/250 V
Measurement rate: 2 - 3 / sec
Operating temperature: 0°C - 40°C, 0 - 75%
R.H.
Storage temperature: -10°C - 50°C, 0 - 75%
R.H.
Safety classification: CAT II
Dimensions: 85x185x35 mm
3
approx.
Weight: 310 g approx. (including
battery)
Electrical specifications
V
Measuring range Accuracy
200 mV ±0.5 % ± 3 digits
2 V, 20 V, 200 V ±0.8 % ± 2 digits
1000 V ±1.0 % ± 2 digits
DC voltage
Input impedance: 10 MΩ
V
Measuring range Accuracy
200 mV ±1.2 % ± 5 digits
2 V, 20 V, 200 V ±1.0 % ± 5 digits
750 V ±1.2 % ± 5 digits
AC voltage
Input impedance: 10 MΩ
Frequency range: 40 – 400 Hz
A
Measuring range Accuracy
20 µA ±1.8 % ± 2 digits
200 µA, 2 mA, 2 mA
20 mA, 200 mA
2 A, 20 A ±2.0 % ± 10 digits
DC current
Measuring voltage drop: 200 mV
±2.0 % ± 2 digits
2
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