User manual

The resistors of the E24 standard series are as follows:
1.0 / 1.1 / 1.2 / 1.3 / 1.5 / 1.6 / 1.8 / 2.0 / 2.2 / 2.4 /
2.7 / 3.0 / 3.3 / 3.6 / 3.9 / 4.3 / 4.7 / 5.1 / 5.6 / 6.2 /
6.8 / 7.5 / 8.2 / 9.1
The colour code is read from the ring closer to the edge of the
resistor. The first two rings represent two digits, the third
ring the multiplier of the resistance value in Ohm. A fourth one
indicates the tolerance.
A resistor with the colour rings yellow, violet, brown and gold
has the value 470 Ω at a tolerance of 5 %. Try to identify the
resistors of the learning package right away.
Advice
Entering the search term »Resistance code calculator« online
will return many resistor colour code calculators, e.g.
un-
der http://www.ab-tools.com/de/software/resistancesrechner/
or http://www.dieelektronikerseite.de/Tools/resistancesrec
hner.htm.
There also is an old version as shown in the figure below. This
»resistance gauge« or vitrometer permits quick determination of
the resistance without a computer just by turning the colour
wheels. This way, you will memorise the colour codes much more
quickly than in the computer version.
3.5 | Temperature Sensor
To record temperatures, an NTC-temperature sensor is enclosed.
The designation NTC means »negative temperature coefficient« and
says that the resistance will drop when the temperature rises.
This is a hot conductor. The NTC in the learning package has a
resistance of 4.7 kΩ at 25 °C/298.15 K (Kelvin).