Multi-functional Signal Generator

The process tool may simulate and measure every part of this loop. 

By way of example, we might simulate a T type thermocouple and then measure the current in the control loop. Or send a 4~20mA signal direct to the burner and watch the flame control up and down, manually or automatically, or simulate a transmitter etc.

There are many great instruments from Fluke, Beamex and Additel (et al) but “ay, there’s the rub” (Hamlet, Act 3, Scene 1). These instruments kick off around NZ$5,000, let’s say you are into CAPEX, but you worry about putting one into the hands of the apprentice: Well, what about one for NZ$500!?

That’s 1/10th the price! 

Perhaps we’re into the realms of discretionary spending now.