Search results

There must be a plethora of meter manufacturers worldwide, from Siemens in Europe to Schneider in the Americas... Since energy saving is on most company agendas - why do you ask ?

joseph_e2 and David_2 are correct in their circuit descriptions - such principles of safety operation are used worldwide The same principle also applies to single phase contactors and SSR's.

I may have missed something obvious here - if so other members will correct me .... In contract meetings with mechanical engineers, many solutions would compare with a motor car: and would suggest the same here. The battery would sit there until it goes dark - the lights are turned on, and to...

One assumes any piece of equipment has value; why was it not used when received ? https://process.honeywell.com/us/en/products/terminals/enraf-tank-gauging/enraf-flexline-radar-990 Is this what you have ? - if so it looks extremely useful if you have storage tanks...

It's not clear what you have in mind by silly information - However there are plenty of 'PPE' suppliers of what we call Ear Defenders: https://www.screwfix.com/c/safety-workwear/ear-defenders/cat850380 There are earplugs which are foam plugs - but for a Turbine Hall Ear Defenders are the way to...

There may be several reasons - but to me the most obvious is to check the health and integrity of the other 2 DP monitors. The filters would be constantly working in airborne fine dust, and although rare, monitor pipework can get clogged up when a seal has failed. This did happen once at a...

Having glanced over the general manual: http://dl.mitsubishielectric.com/dl/fa/document/manual/servo/sh030113/sh030113engp.pdf You are not intended to know a great deal about the encoder since the manual is all about the servo-drive. However for an incremental encoder there may not be any...

One is tempted to state, you should ask this question on a programming Q & A site .. You photo of hardware suggests a trick question - is there any form of processor (CPU) on the board with the fan ? Assuming you have no processing hardware at all - by ignoring your background I see 3 separate...

You appear to be missing a 'Process Description' ! Control Engineers sometimes are expected to use a magic wand... Even if you have an idea of the process you can 'second guess' parameters but unwise if it does not then work as designed. Can you write a Functional [Control] Description of what...

Have you tried points that joseph_e2 alluded to in Jan 20, 2020. Also, are there any 'Forces' in operation. If not perhaps you could force the bit on/off to ensure correct hardware operation. We assume you are 'online monitoring'.

Correct me if I'm wrong but isn't Jurutera looking for a solution to overcoming voltage drop over a long distance, not fancy calculations....as indicated in my posting last Friday.

Thanks for that David_2. I took a glance at voltage drop calculations - and based current at 0.5Amp on the basis that: - We don't know the actual solenoid current - We don't know the distance and " about 1000' " a little vague, so trust voltage drop is an issue.

It doesn't matter where you have the power supply, you would still have a voltage drop, and of course it's " about 1000' " twice. Using a relay would have a minimal effect on SIL rating. If you have sufficient spare cores of existing wiring you could wire the solenoid back to a spare PLC i/p to...

Not really a change of topic. For a few years I was with Siemens in North East England where they service the smaller SGT's - down to little 3Mw. Interesting to see a 20-25year SGT stripped and rebuilt; and generally mated up with an up to date control system. But as far as I know they [timer...

That was the answer I was looking for. If you don't have a pilot, the amount of unburnt gas in the chamber before ignition / before it's detected as burning, could cause an internal explosion. As you appreciate any internal explosion however small would damage turbine blades. Comparison: Old...

Sorry, my reply would have thrown you - a little. What type of flame detection system does the SGT700 have ?

Having worked for some time in the world of LNG [liguified natural gas], for large burners, the answer I guess is probably the same. For burners of around 0.5Mw and upwards, the simple answer is if you try to light main burner from a pilot, it will blow out ! The way round is it to light an...

As stated in your other thread: The CDs are probably only any good for nostalgia or arts and crafts. I have the Software [of similar age] which is why I haven't offered to buy. It resides on an old windows '95 PC which still functions although crashes occasionally which is what they always...

It was assumed the fan was either powered by single or 3 phase AC. On reduction of air flow it would speed up slightly to 'synchronous' speed. If I've provided a good explanation then your first point must be wrong. The fan will never trip due to increase in DP. I'm mystified why your trip is...

I'm a little mystified why you are doing any tests at all. Your tabulated results are exactly what I would expect from your experiments, with the thermal effects affecting the older MCB. You can repeat the tests with a 2amp fuse - except the higher overload currents will break faster. The...