Conrad Thermostat Variable Temperature Switch Kit With Sensor 192082 Data Sheet

 

Insert now the screw terminals in the corresponding positions on the circuit board 
and solder the connection pins cleanly on the side of the conducting paths. 
Owing to the larger ground plane and terminal clamp, the solder joint must be 
heated here for longer than normal, till the tin flows properly and forms a clean 
solder joint. 
2 x terminal clamp 2-pin 
1 x terminal clamp 3-pin 

 

Solder now the LEDs (as shown in the Figure) in the circuit with the correct 
polarity. The shorter contact pins indicate the cathode. If one views the LED 
against light, one can see the cathode at the larger electrode inside the LED. On 
the printed side of the circuit board the position of the cathode is marked by a 
thick line in the casing outline of the light-emitting diode. Solder at first only one 
contact pin of the diodes, so that they can be aligned exactly. After this is done, 
solder then the second connection. 
 

LED1 =  
LED2 =  
LED3 =  
LED4 =

 

 

Mains display 
Sensor break 
Sensor short-circuit 
Relay on 

 

If there is no unique marking on an LED or else you have doubts about the 
correct polarity (since many manufacturers use different marking systems), then 
it can be determined through trial and error. 

The integrated voltage regulator is now inserted in the openings provided and the 
contact pins are soldered on the soldering side of the board. 
Note thereby the position of IC1! The casing outlines of the IC must match those 
given on the printed side of the circuit board.