Recent content by omby

Cheers for that danw2. I'll look into the Meriams... Agree with disposable batteries, it makes life easier, and have had minimal experience of Pactware which seemed - as you state - a lot of effort to interrogate transmitters not previously saved.

Have you had experience with this model danw2? I was after something fairly basic and more at the cheaper end of the market. Thanks omby

Hi, Can anyone reccomend a basic up to date HART field communicator for an industrial environment to connect to a stand alone transmitter for set up and calibration? Fairly happy with the now discontinued Emerson 375 & 475's but the ones I've tried lately either dont have full set-up...

Zdas04, the system 'works' as its part of an air/gas ratio system for a burner which is linked via a dcs to a combustion management system. The system works out gas times, heat required, air/gas ratio's etc and feedback is provided by accumulated heat and rate of temp rise being compared against...

Thanks Dan, those are the sorts of things I'm after. Jim, I have had experience of averaging pitot tubes and have already considered them but the gas mix in the main can be prone to condensate and I think this may be an issue with such a device. I know the current installations are not ideal...

Ok. How do you arrive at that figure?

I'm afraid we're stuck with them at present. Installation of new isolation valves downstream have meant altering the main as they are bigger than those used previously. The orifice plate installation wasn't ideal to start with, and since I joined the current project (which is not a new...

I have some queries regarding the positioning of an orifice plate in a vertical gas main approx 30 inches in diameter. Ideally it should be positioned with 10 straight pipe diameters upstream and 5 downstream. Assuming I only have 10 straight pipe diameters in total (a 90 degree bend at one...

Thanks. I'll drop them a line and get more info. regards omby

Does anyone know of, or could recomend any commercially available gels or pastes that I could use to conduct teperature to the tip of a thermocouple that is inserted into a hole drilled in a refractory brick. The gel/paste needs to be able to withstand upto 200 degs c and must not set solid as...

Well, perhaps I should have missed the word 'Optical' off the thread tagline. I'm really just after the simplest, most reliable non-contact method of measuring a generally low temperature ore product that travels on a conveyor (and as such has a variable bed depth), and is suitable in an...

The product is a sintered ore that is delivered from one part of a process to another via a rubber based conveyor belt. It is supposed to be suitably cooled before being put on the transfer belt and the pyro is to check that cooling process is working ok to protect the conveyor. Unclesyd, I...

Has anyone had any experience of measuring the temperature of a product on a conveyor belt? Is optical pyrometry the best method? If so, does the depth of material on the coveyor affect the reading by any great amount? Are pyro's accurate at lower ranges of temperature measurement? ie <60 degs...

Hi Waross, As I understood things..... the junction of two dissimilar metals would produce a voltage equivelent to the difference in temp between the hot and cold end of the wires. The linearity and amount of voltage produced is dependant on the types of wire used, hence the different temp...

Waross, I think you missunderstand my problem. The converter card always adds the 10 degs ambient cj temp to the mV I inject. I am happy with this, and inject the equivelent mV of 990 degs at the card to give me an o/p equivelent to 1000 degs. When I connect my mV injector to the compensating...