R
Roger
> I cannot believe we are discussing the relative merits of doing something in
> various wrong ways as opposed to just fixing it correctly.
That's right, but it is still a good reminder or case study for similar situations since this concept is not fully understood even by many experienced technicians. I've had to explain it to my guys many times in various similar circumstances, for example inside a control cabinet where the T/C extension cable from the field was connected to a terminal strip at the bottom of the cabinet and routed to the PLC modules at the top of the cabinet with non-compensating wire, the temperature gradient (within the same cabinet) between the PLC and the terminal strip created a very sizeable error, more than 10degC.
> various wrong ways as opposed to just fixing it correctly.
That's right, but it is still a good reminder or case study for similar situations since this concept is not fully understood even by many experienced technicians. I've had to explain it to my guys many times in various similar circumstances, for example inside a control cabinet where the T/C extension cable from the field was connected to a terminal strip at the bottom of the cabinet and routed to the PLC modules at the top of the cabinet with non-compensating wire, the temperature gradient (within the same cabinet) between the PLC and the terminal strip created a very sizeable error, more than 10degC.