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Thanks all 3 KvA Transformer 240v-110v, does this help?

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...

Thanks! I will try everything that has been suggested. I checked controllers (with same configuration) on other plants, they were pretty stable. I can’t do anything just yet, because the plant is running. They are K type thermocouples. The heater mat came with thermocouple cables and power...

Thanks. It's a PID controller, that's why it's set to auto-tune.

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...

Thanks!

"If it is trying to source current into an open circuit or into a more powerful external source then it will either indicate O/L or blow a fuse." -- Do I have to remove my 24v power supply? But if I disconnect the 24v, the loop will be an open loop... I'm using it as current source (left two...

Thank you for the replies. Yes, it was a multi-meter, I set it to read current, and in fact I did get readings on the multi-meter later on. There are two fuses in the device that I could find, I changed both of them. When I connected Fluke in my loop, the 24V power supply was connected too...

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...