3B SCIENTIFIC PHYSICS DT9201A Anleitungsblatt - Seite 2

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The assumption needs to be made that unfore-
seen voltages may be present in the vicinity of
objects being measured (e.g. faulty equipment
or capacitors).
Before using the multimeter, check the
•
housing and measuring leads for damage
and if there should be any malfunctions or
visible damage, the multimeter is not to be
used. Pay specific attention to the insulation
for the measuring sockets.
Be particularly careful when measuring volt-
•
ages in excess of 33 V AC (RMS) or 70 V
DC.
The authorised measuring range is not to be
•
exceeded. If measurements are made when
the magnitude of the variable is unknown,
always select a large measuring range be-
fore shifting down to lower ones.
The multimeter may not be used to make
•
measurement on circuits which exhibit co-
rona discharge (high voltage).
Particular care is to be taken when making
•
measurements on high-frequency circuits
where dangerous voltages may arise due to
superimposition of components.
Make very sure that the voltage value be-
•
tween the measured contact and earth or
between the ground socket and the meas-
urement socket does not exceed 1000 V.
In order to check that the multimeter is ready
•
to use, select the battery test function. Af-
terwards, it is then possible to check that the
voltage source is disconnected and no volt-
age is present.
The multimeter may only be used in a dry,
•
dust-free environment with no risk of explo-
sions occurring.
When measuring current in a circuit, make
•
sure to switch off the power before connect-
ing the multimeter into the circuit.
When making measurements, always con-
•
nect the ground lead first. Disconnect the sig-
nal measurement lead before unplugging the
ground.
When using the measuring leads always
•
hold them with your fingers behind the finger
guard.
To avoid false readings, which may result in
•
electric shocks or injuries, always replace
the battery as soon as the flat battery indica-
+ -
tor (
) is displayed.
Turn off the multimeter before opening the
•
casing, disconnect the power to the circuit
and the measuring leads from the multime-
ter.
Never use the multimeter when its casing is
•
open.

2. Equipment supplied

1 Digital multimeter
1 Pair of measuring probes
1 Battery
1 Instruction manual

3. Symbol legend

Hazard, 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
Resistance
+ -
Flat battery
CAT
Measuring category as per IEC EN
61010-1
Double insulated casing
CE
EU conformity mark
Earth symbol
┴
Ground symbol

4. Technical data

General specifications
Dimensions:
Weight:
Display:
Operating voltage:
Automatic cut-off:
Fuse:
Connectors:
Measurements/second: 2 – 3 times
Overload display:
Overload protection:
Voltage limits:
Current limits:
2 A range:
20 A range:
2
90x190x35 mm approx.
310 g approx. (with bat-
tery)
3½-digit LCD,
24 mm, max. 1999
9-V battery, 6F22
After 15 minutes
F2A/250 V
4-mm safety sockets
"1" shown on display
1000 V long-term in all
voltage ranges
max. 2 A
max. 20 A for 10 s with
minimum interval 15
mins