Conrad Thermostat Variable Temperature Switch Kit With Sensor 192082 Datenbogen
Produktcode
192082
9. When soldering semi-conductors, LEDs and ICs special attention must be
paid to the fact that the soldering time does not exceed approx. 5 seconds, as
otherwise the component gets destroyed. Similarly, attention must also be
paid to the correct polarity in case of these components.
otherwise the component gets destroyed. Similarly, attention must also be
paid to the correct polarity in case of these components.
10. After mounting, check each circuit once again to see that all components are
inserted correctly and polarised. Also check, whether the connections or
conducting pathways have not been bridged by mistake with tin. This can not
only lead to faulty functioning, but also to a damage of the expensive
components.
conducting pathways have not been bridged by mistake with tin. This can not
only lead to faulty functioning, but also to a damage of the expensive
components.
11. Please note that improper solder joints, false connections, improper usage
and mounting faults are outside of our influence.
1. Construction
stage
I:
Mounting the components on the printed circuit board
1.1 Resistors
First, the connection wires of the resistors are bent at right angles conforming to
the contact spacing and inserted in the openings provided (as per the component
diagram). In order that the components do not fall out when the board is turned
over, bend the connection wires of the resistors away from one another at an
angle of approx. 45°, and then solder them carefully with the conducting
pathways on the rear side of the printed circuit board. Thereafter, the excess
wires are cut away.
Note that this circuit is equipped with two different types of resistors. The
commonly used resistors are the carbon film resistors.
They have a tolerance of 5% and are marked by a gold-coloured “tolerance ring”.
Carbon film resistors normally have four coloured rings.
Metal film resistors have a tolerance of just 1%. This is shown by a brown
“tolerance ring”, which is imprinted a little broader than the remaining four colour
rings. This is meant to avoid a confusion with a normal “value ring” having the
value of “1”. For reading the colour code the resistor is held in such a way that
the coloured tolerance ring is present to the right of the body of the resistor. The
coloured rings are then read from left to right!
R1 = 4k7 = yellow, violet, red
R2 = 10 k brown, black, orange
R3 = 1 k = brown, black, rot
R4 = (trimmer potentiometer 10 k)
R5 = (trimmer potentiometer 10 k)
R6 = 2k4 = red, yellow, black, brown (metallic-film) or red-yellow, red
R7 = 1 k = brown, black, red
R 8 = 22k red, red, orange
the contact spacing and inserted in the openings provided (as per the component
diagram). In order that the components do not fall out when the board is turned
over, bend the connection wires of the resistors away from one another at an
angle of approx. 45°, and then solder them carefully with the conducting
pathways on the rear side of the printed circuit board. Thereafter, the excess
wires are cut away.
Note that this circuit is equipped with two different types of resistors. The
commonly used resistors are the carbon film resistors.
They have a tolerance of 5% and are marked by a gold-coloured “tolerance ring”.
Carbon film resistors normally have four coloured rings.
Metal film resistors have a tolerance of just 1%. This is shown by a brown
“tolerance ring”, which is imprinted a little broader than the remaining four colour
rings. This is meant to avoid a confusion with a normal “value ring” having the
value of “1”. For reading the colour code the resistor is held in such a way that
the coloured tolerance ring is present to the right of the body of the resistor. The
coloured rings are then read from left to right!
R1 = 4k7 = yellow, violet, red
R2 = 10 k brown, black, orange
R3 = 1 k = brown, black, rot
R4 = (trimmer potentiometer 10 k)
R5 = (trimmer potentiometer 10 k)
R6 = 2k4 = red, yellow, black, brown (metallic-film) or red-yellow, red
R7 = 1 k = brown, black, red
R 8 = 22k red, red, orange