Until about a year ago we had only level 2 and 3. BTW, I'm in level 2 Electrical and Instruments. Now we have level 1 added and everything that ran smoothly before that came to a grinding halt. Please explain what the benefit of adding level 1 is to our organisatin.
Sorry Dan, my mistake. I saw the video of mounting a DVC 6200 to a valve and noticed that is has a non contact way of position feedback instead of some kind of mechanical linkage. At the end of the video the voice-over says: "now your ready for calibration". To my knowledge all modern digital...
I think the OP means I/P covertor instead of a valve positioner. In my opinion a valve positioner has a mechanical feedback arm connected to the valve stem. The positioner puts out whatever air pressure required to give the valve stem the % of travel governed by the % of input signal. Of course...
Anyone using Optical Scientific Inc. OFS for stackflow?
We are considering to replace our Itabar (annubar/dP), in the stack of our incinerator/waste heat boiler, by one of these. Would like to hear experiences from someone actually using it.
A Roland AR-200 digital message player/recorder might do the job. It records on 16 or 32 MB PCM cards. It also has discrete I/O which simplifies interfacing with a PLC.
