Dears

please let me know what is purpose of Emerson Rosemount 3051 Transmitter front display Jumper for Alarm (high, low). also security Jumper (on, off).

 

Irfan,

What does the manufacturer's Instruction/Application Manual say the jumpers are to be used for?

 

hi

as per manual instruction jumper for alarm low and high. if transmitter goes to fail mode then output will be high or low as per setting.

for example in temp. mostly i have seen they put high alarm jumper.

and security off means you cannot overwrite the application.

 

WE received Pressure Transmitter EMERSON 3051 WITH THE FOLLOWING ORDER CODE: 3051TA2A2B21BI1M5 AND ON THE BODY OF THIS TRANSMITTER MENTIONED M.W.P 150PSIA/10.34BARA BUT THIS ENGRAVED NUMBER HAS CONFILICT WITH DATA SHEET OVER PRESSURE LIMIT FOR 3051TA ,according to data sheet page 88 of 136 Rosemount 3051TG/TA ■ Range 2: 1500 psi (103.42 bar) , can any body clarify this for me?

 

what is the link to the document with page 88 information?

 

MWP is different than OPL. The MWP or Maximum Working Pressure refers to the maximum permitted pressure that the pressure transmitter can handle continuously (safe operating limit). This is where your field range is tied to and it is always higher than the range you requested when you ordered your transmitter. On the other hand, Over Pressure Limit indicates the maximum pressure spike (momentary) that the pressure transmitter can tolerate without sustaining damage. I guess you will not go this far (over pressure) because your pressure is limited to the design pressure of your system. You should always be within MWP.

 

what is the link to the document with page 88 information?

I'm so sorry ,not access to the link at this moment, Product Data Sheet 00813-0100-4001, Rev WD December 2022

 

MWP is different than OPL. The MWP or Maximum Working Pressure refers to the maximum permitted pressure that the pressure transmitter can handle continuously (safe operating limit). This is where your field range is tied to and it is always higher than the range you requested when you ordered your transmitter. On the other hand, Over Pressure Limit indicates the maximum pressure spike (momentary) that the pressure transmitter can tolerate without sustaining damage. I guess you will not go this far (over pressure) because your pressure is limited to the design pressure of your system. You should always be within MWP.

Dear Superbullet
I acknowledge with thanks receipt of your reply, yes I got the point! but I'm wondering why when the same metal plate is issued for 3051CD or 3051CA, the M.W.P specified number IN FRONT OF IT is the exact same over pressure limit number on page 88 and it doesn't matter which one it is. It's really confusing, do you have a convincing answer for me.
Warm Regards
Pejman

 

Dear Superbullet
I acknowledge with thanks receipt of your reply, yes I got the point! but I'm wondering why when the same metal plate is issued for 3051CD or 3051CA, the M.W.P specified number IN FRONT OF IT is the exact same over pressure limit number on page 88 and it doesn't matter which one it is. It's really confusing, do you have a convincing answer for me.
Warm Regards
Pejman

It could be the type of sensor that they used. I am guessing the CA or CD has a more sensitive sensor than the TA/TG.

Just to clear up on my first reply, Overpressure limit is actually the maximum amount of pressure (out of the pressure range) that can be applied to a pressure sensor without causing damage to the sensor. As soon as the pressure drops, the sensor will return to its normal state without causing permanent damage to the sensor (I got this using Google).