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Thank you. Actually I never heard about that term "water hammer". But now I'm know it.



Thank you, I got it.

Dear desert guy,
I'm forgot what the reading at pressure gauge. I'm always use that pressure sensor with max pressure is 300psi.




Dear Nuclrchiller
What is water hammer ? Can you explain...

Hi guy, I'm using this type of sensor http://www.dwyer-inst.com/Product/Pressure/SinglePressure/Transmitters/Series626-628
Before this I'm never use "pigtail". But some site that use this sensor got...

Thank you for the link and info.



Dear Nuclrchiller,

I'm also afraid without "pigtail" will be damaged the sensor. This sensor will be use for control VSD pump. Maybe the best choice is to...

Is it without "pigtail" will be effect for the water pressure reading? For information, this water pressure is to control VSD pump.

Hi expert forumer,

I need advice to install water pressure transmitter at Chiller water pipe, I have two option to install whether to use copper tube or not. Please refer to image attachment for...

Thank you Exwtk, I understand it the function to control it.

Sir,
Only 2 DDC involve in this OT Room. Both DDC cannot share information to each other. One DDC control the heater to maintain Humidity and the other DDC control the Valve to maintain the...

Hi,

I'm got some question regarding to Operation Theater (OT) Room control strategy.

Is it possible this control strategy :-

Room Humidity - Control by other controller ( standlone DDC )...

Thank you for clear explanation, I think that take a lot of time to tuning the PID for VSD and valve :(

Thank you for suggestion, xarralu and crab master.
my mistake for Delta T.
So, Delta T for control bypass and Delta P for control Variable Speed Drive Pump. May I know why need to place the sensor...

Hi expert forumer,

I'm beginner in control automation. I'm need some advice from all of you regarding to this

1) which is best location to place water pressure sensor to control Variable Speed...

Im working with ASI Control devices. The devices running with software and hardware that easy to configure. The hardware can be interface with all type of binary input/output and also analog output....

For small building, use only standalone networks thermostat. that reduce the cost.
bacnet is not good choice for me. better use OPC server for equipment.
im suggest this equipment to interface...