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Thanks for the replies. Sierra would be affected by temp, moisture and any variation in the composition of the gas. I am more thinking of the optical as it is virtually unaffected by such variation as lon as the temp is not < 100F. Any references on the optical. Thx all.

Any comments / help on selecting the best flowmeter that will be reliable in measuring the flue gas in a duct (15' x 15'). I am leaning towards the selection of the OFS-2000 (Optical Scintillation)and would like to get any feedback on it. Thank you. Yasmina

Good day every one, I am puzzled/confused on what whould be the best practice when wiring an instrument and its shield. Is wiring the shield at BOTH ends better? Or wiring at the JB is enough. What are the implications of each method considering the RF and the ground loop error? Any comments...

I am trying to understand how a float in a magnetic level gauge could sink -to the bottom of the chamber- due to an error on max fluid's specific gravity. Any help would be much appreciated. Thanks.

Thank you to both JMW and JLSeagull. No I am not concerned of DCS configuration. But of the transmitter itself. JMW mentionned that transmitter ofter defaults to its 2 mA. Why fail low and not high? In a split range loop when the control valves are FC & FO what would be the fail position of...

Any links or information on how to select the proper fail position of a transmitter will be much appreciated.

GIstartup ...thank you. Crucnky??? [sadyes] apply, don't worry ....Be happy [2thumbsup] Hope you are smiling now !!!! Yes you guys are right, But for now I have this job...and I want to make it a " + " for me and my knowledge!!!! To have a mentor is an excelent idea ..but who ???? the...

Thank you for your tips...I am working for a consulting firm, and I will definately jump on any more practical(Site-construction..etc )opportunity! Thx again!!! PS: Thx stands for thanks ;-)

Wow...Of course Pb stands for problems....AND I&C for instrumentation control...well..I tough you guys understand that.... Anyhow...did not get your tip yet .... :-)

Hello every body, I am a new graduated engineer just starting my career, which by the way I love. The pb or the Pbs I am facing look to me huge ones....Working in I&C field is completely different from what I have studied, colleagues are not too co-operatifs....I want to be successful and learn...

Hello, I have a bore size of < 1", and as it's about a liquid service, I will need a Vent hole. Vendor says that it's not faisable, since the bore size is <1". They can do it but it wont be ISA compliant. ANy one knows any thing about it....and what exactly does ISA say about this issue. THX.