Answer / ashraf

You need one water manometer,one T fitting and one flexible
rubber hose. Connect the hose,the manometer and the pressure
gauge to the T fitting without any leakage.
Blow air (by mouth)through hose till span (cross check at
water manometer) and fold the rubber hose. Adjust span setting.
Then drop the pressure by unfolding the hose and adjust for
zero.
Repeat process two or three times.
Now check for mid-range, if it is ok, then calibration is over.

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

2 Answers  

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what are the selections available in configuring a burnout protection of a controller? thanks

1 Answers   NPC Alliance Corporation,

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Positioner usage.

1 Answers   CCIE,

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why we take 4 to 20 mA as out put of every instrument like pressure transmittre ?why we cant take 0 to 20mA as output?

6 Answers   OGDCL,

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if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

1 Answers  

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pls give me presant awerness quistion and answer in my emailid.

1 Answers  

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Where do we consider the pressure in mbar & where do we consider the pressure in bar & why is it so ?

2 Answers   BOC, Jindal Steel and Power,

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What is sensitivity in vibration probes..?

1 Answers   Lanco,

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WHY WE WILL USE 0-24VdC IN ELECTRONIC CIRCUITS AND INSTRUMENTATION TRANSMITTERS?

3 Answers   Aban Power, Jindal, JSW, Sugar Factory,

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how u meassure room temp?is it possible 2 meassure room temp by rtd or thermocouple?between rtd n thrmocouple which is more regard?3 meassure diff. between rtd n thermocouple?

3 Answers  

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Yokogawa CENTUMVP R6.09 unable to download to Engineering Station with ExaOPC R3.75 The issue is when I try to download the common project section to the Engineering Station (STN) from the HIS in System View, it is unable to connect. The error displayed is: WARNING: Could not connect to equalize destination. (7001) Retrying. Number of retries = 0/1 ERROR: LdXopsLoadMain: connect error 10060 ERROR: Processing terminated due to connection error. (7002) Equalization end with errors. STN0149 ---- ERROR = 2 WARNING = 1 ---- Background: >Updated the ExaOPC software on the STN from 3.60 to 3.75 >STN operating system is Windows Server 2008 R2 >HIS operating system is Windows Server 2016 Stanard Solutions attempted include: >Ensuring all IP addresses are correct and all networked devices can be pinged. >The ability to ping a device using its host name from another device (<ping STN0149> from HIS) >Ensure both devices firewalls are disabled. >The antivirus installed on the STN is disabled. >Ensuring both devices are within the same workgroup. >Added both devices to each other's Host and LMHost files. >Running IT Security tool after changing any administrative settings.

1 Answers  

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how to calculate density?

2 Answers  

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