3B Scientific Digital Multimeter E - Manual (Page 2)

2
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 indica-
tion, low battery indication and automatic switch
off after 15 minutes. After the power is automati-
cally 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
±2.0 % ± 2 digits
2 A, 20 A ±2.0 % ± 10 digits
DC current
Measuring voltage drop: 200 mV