3B SCIENTIFIC PHYSICS Escola 30, Instruction Sheet

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3B SCIENTIFIC® PHYSICS
1
Analogue Multimeter Escola 30 1013526
Instruction sheet
12/16 SD/JS
1 Connection sockets
2 Display with mirror scale
3 Slotted screw for zero calibration
4 Calibration trimmer for setting centre zero point
5 Rotary switch to select the measurement range
6 Three-way switch
1. Description
The ESCOLA 30 is an electronic meter with a mir-
rored dial for measurements of current and volt-
age involving analogue techniques for schools
and training use.
The meter allows measurements of AC and DC
current and voltage values and the zero point can
be set up in the centre of the scale for measure-
ment of DC quantities. AC quantities with frequen-
cies of up to 40 kHz can be measured. All the pos-
sible measuring ranges can be selected by means
of a single rotary switch.
The excess current protection of the Escola 30 au-
tomatically limits the power when overloaded. Af-
ter a brief cooling phase, the multimeter au-toma-
tically switches on again.
The use of a robust moving coil galvanometer and
a mechanically resilient casing make it pos-sible
to use the equipment even under highly challen-
ging conditions. This means that this equipment is
suitable for use in schools by children of all years.
2. Initial calibration

Set up the ESCOLA 30 meter either horizon-
tally or vertically.

Do not connect measuring leads to begin with.

Set the three-way switch to .
The needle will point to the zero point of the dial.
If it does not, the amount of charge of the battery
should be checked.