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Recent content by Oxidation

  1. Oxidation

    Seal Plans Number & other permutations

    In reply to all who have posted, Two well known industry suppliers have suggested Seal Plans & pump materials which are suitable for the application. The seal plans offered were Burgman 11+52+61. Thankyou for all the help & advice
  2. Oxidation

    Seal Plans Number & other permutations

    Dubmac, You appear to not have read or understood the thread. The customer has specified the seal plan (this is a very large petrochemical company), so they know what they are doing. I am not guessing/googling a seal solution. What I was looking for was a comparison of API 682 seal plans...
  3. Oxidation

    Seal Plans Number & other permutations

    I have become involved in a project where a client needs API pump & 682 seal plans. They have specified 1CW-FX as the preferred plan. I am relatively new to the pump seal plan world, so apologise if this appears to be a trivial question How does this relate to the numbering system Eg Plan 11+52...
  4. Oxidation

    ISO Chemical Pump Recommendation for some chemical

    ISO 5199 will cover you, but I think you have to be careful in selection with methanol, ensure that all the wet components are methanolsafe Try Dickow Pumpen http://portal.dickow.de/
  5. Oxidation

    S7 analogue data to MSExcel

    Dear all, I am no expert in the field of PLC programming-but i wondered if anyone could give me a few hints on how to export "analogue data" from a 315-2DP to excel format so i can then graph it in Excel. I have a datablock set up where the analogue values are held...but how do I then for...
  6. Oxidation

    Inhibited Monoethylene glycol

    bchoate: Thanks for the reply. I have heard that by diluting the sample of the solution with water that a more reliable pH reading can be obtained, as I am not a Chemical Engineer I have no idea if this is infact true. However, is there some other method that could be used to detect the...
  7. Oxidation

    Inhibited Monoethylene glycol

    Does anyone have any experience of measuring the pH of a water glycol solution (90% by wt glycol) at 40 Degree C. When using litmus paper I tend to get a reading 1,5 to 2 points lower than using a pH electrode. One more question, is MEG stable when in contact with standard motor gas or will it...
  8. Oxidation

    WinCC

    jraef, we own the software,by saying "without having to pay Siemens" I talk about the additional package called dat@monitor. We, my company use, external programmers, to construct the WinCC applications for our customers. Sometimes we are asked about exporting the trend data to csv format. The...
  9. Oxidation

    Need assistance choosing a PLC

    You could try a Siemens LOGO. Programming is graphical & easy. they are also quite cheap & the prograaming software is free
  10. Oxidation

    WinCC

    Does anyone know how to export historical data from Wincc to csv format without having to pay Siemens? Also how to get rid of the "i" (integer) mark in the trend screens for WinCC thanks
  11. Oxidation

    S7 315 DP & Profibus problems

    After consulting with quite a few people what we have done is turned off the harware error reporting at the remote I/O station (Stahl harware) & put a trend in the WinCC system to see which error number the profibus/S7 reports from OB1. we will then use this error number to go to the next step...
  12. Oxidation

    S7 315 DP & Profibus problems

    New connectors were installed, switches have been checked. Earthing has also been checked....in fact at one poit we isolated earth on the Profibus cable at the connector at the slave ends. PLC diganostics says, when the error occurs: Module fault present in the event window Details Module type...
  13. Oxidation

    S7 315 DP & Profibus problems

    We have an installation using Profibus DP connecting the master (315-DP) to a PC running S7 with CP5611 card & a remote i/o station (Stahl). Comms speed is 187kbps. It was 1,5Mbps. Problem is I continuaaly get regular coomunications hang ups. I have laid new Profibus cables & installed a new...
  14. Oxidation

    Looking to find who makes this specific flame scanner/viewing head

    Also try Credfeld UK http://www.credfeld.uk.com/iqs/sid.007839602631680101114/main_flame_monitoring.html
  15. Oxidation

    Burning of low cal waste gas

    Flare companies are Zeeco, John Zink, Callidus Membrane systems: Borsig or UOP You will find it difficult to separate the methane out cheaply. The bet solution is possibly a membrane system plus a compression unit. The membrane would get rid of the CO2 (or most of it) & give you an amount of...
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