Instruction Sheet - 3B SCIENTIFIC PHYSICS 1017895 Manual De Instrucciones

3B SCIENTIFIC ® PHYSICS

Instruction sheet

12/16 SD/JS
The demo-multimeter is an electronic meter fea-
turing a double scale for analog measurement of
current and voltage in demonstration experi-
ments. It is suitable for use as a free-standing in-
strument or for setting up in training panel frames.
The meter can handle measurements of current
and voltage values and also allows the zero point
to be set up in the centre of the scale for meas-
urement of DC quantities. All the possible meas-
uring ranges can be selected by means of a sin-
gle rotary switch.
This equipment is protected by fuses and au-
thorised for making measurements in circuits di-
rectly connected to the low-voltage mains via
plugs (CAT II), i.e. for measurements on house-
The demo multimeter conforms to safety regula-
tions for electrical measurement, control and la-
boratory equipment, as specified in DIN EN
61010-1, protection class 2 and to measuring cat-
egory CAT II for up to 600 V. The nominal voltage
between the phase conductors and the neutral for
Demo Multimeter 1017895
1. Description
2. Safety instructions
hold appliances, for example. The current meas-
uring ranges are resistant to long-term overload-
ing up to 10 A. Generous protection of all the cur-
rent ranges by means of semiconductor circuit
breakers prevents the fuse blowing unintention-
ally in many cases.
Switching between measuring ranges does not
break any circuits connected to the equipment.
This means it is possible to carry out measure-
ments on voltage converters, for example, with-
out causing induction surges. Resistance R, con-
ductance G, impedance Z and admittance Y can
easily be determined as quotients of current and
voltage measurements thanks to the non-inter-
rupting switch capability without the need to
change the wiring.
voltage and current measurements (in circuits di-
rectly connected to mains electricity) must not ex-
ceed 600 V in order to conform to CAT II.
The meter is intended for measurements within
its measuring ranges and in a measuring environ-
ment as described in detail in the course of this
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