I used to be up on this but since moving to the US I'm a bit behind. I recently stumbled on an air driven motor, perfect for an application we're working on, but the manufacturer (I won't mention the name) claims that it is intrinsically safe! And quotes all sorts of convincing ATEX type...
The Bosch ovens in Europe used to have a knob to turn that set the desired temperature. Their would be about 10 or 12 clicks per rotation. But the neat thing was that the electronics would increase the rate of change of the desired temperature according to how fast those clicks were coming in...
I have a slightly bizarre control problem.
We have a solenoid operated hydraulic control valve at a remote location. The solenoid is operated by a 24 Vdc supply. There is a plentiful supply of 24 Vdc at the remote location but the only link to the remote location is by optical fiber, of...
For starting up a process control system I am used to this routine:
1. Install the various subsystems.
2. Perform hook-up of the subsystems.
3. Post-installation testing of the subsystems: this is usually basic things like testing of connections for integrity and continuity, no functional...
