In my control panel, I have a type B 16Amp MCB for a 240v-110v transformer.
Every time when I started the panel, the MCB always tripped. Not only that, it also tripped the mains’ MCB. (I didn’t design the panel)
Later on I learned that a D type MCB is more suitable for a transformer.
Once the...
I have a temperature controller connecting to a heater mat, it takes the reading of the heater mat temperature and also controls steady state relay to switch on or off the heater mat.
The controller’s set point is 90 degreeC, when the temperature reaches around 90 the reading starts to jump up...
I have been using it as signal injector, it worked fine giving out voltage, current and temperature output until last week, I don’t know how but I blew the fuses, I have changed the fuses. Now it gives voltage and temperature signals, but not current!!!
I set it as 4-20mA current source, but...
