Coriolis mass flow meters FAQ

I have more applications for the new style coriolis mass flow meters, another email will follow however for now I have some technical questions which are not explained in the manual:

Questions, please explain in detail:

1/ What does “Percent of A” mean?

2/ What is “Medium 1 Density” and “Medium 2 Density” used for?

3/ What is “Density coefficient” used for?

4/ What is “pressure correction” and Temperature correction” used for?

-I assume this is a user adjustable calibration trim?

5/ Confirm what happens if “Reset” and “Factory Reset”  are used?

-Are these the same?

-Are calibration constants lost, or just the settable units and span setting etc. lost?

Secondly, some points for your technical dept. to fix:

A/ “Density” is spelled incorrectly as “Desnity” in the “Medium 1 & Medium 2  Density“ menu

B/ When selecting “Display Setting” note that “percent of A” when selected (highlighted) does not show on display, but does show on display when not highlighted (i.e selection for this setting is not like other display selections but is inverted)

I look forward to your reply, please explain the above with as much detail as possible,

Thanks

BTW, for future coriolis mass flow meters with cheap price please ensure packaging is better, the two recently delivered had some small damage to the transmitter and flanges as the “foam” was not thick enough and the meters moved inside the cardboard box and went through the side in places.

ANSWER

 1/ What does “Percent of A” mean?

If measure 2 medium (A & B) not incompatible, “Percent of A “ is the A medium concentration.

2/ What is “Medium 1 Density” and “Medium 2 Density” used for?

2 incompatible mediums, and input the 2 medium density.

3/ What is “Density coefficient” used for?

It is used to calibrate the density if the mass flow meter display the density is not very accurate.

4/ What is “pressure correction” and Temperature correction” used for?

-I assume this is a user adjustable calibration trims?

Pressure correction is reserved for future function update.

Temperature correction is for calibration trims.

5/ Confirm what happens if “Reset” and “Factory Reset”  are used?

-Are these the same?

Not the same.

-Are calibration constants lost, or just the settable units and span setting etc. lost?

Factory reset can cause calibration constants lost.

And reset is for the settable units and span setting etc. lost?

Continue to ask
All clear, as expected for "percent of A" we sometimes refer to it as "Percent Solids" which is a good feature! 

Maybe suggest to your technical team to maybe add it to be able to allocate to the analogue output in the future?

Fyi for one of the coriolis meters made in China recently supplied density output will be used and Percent solids will actually be calculated in the control system......

Thanks also for the quotes :)

continue to reply:

All clear, as expected for "percent of A" we sometimes refer to it as "Percent Solids" which is a good feature! 

Maybe suggest to your technical team to maybe add it to be able to allocate to the analogue output in the future?

yes, it can set in the flow meters, do you need to set "percent of A" analogue output in your current bought mass flow meters ? 

Fyi for one of the meters recently supplied density output will be used and Percent solids will actually be calculated in the control system......

you can set in that flow meter, if you need , we will ask technician to make a small video to teach you how to set.

A/ “Density” is spelled incorrectly as “Desnity” in the “Medium 1 & Medium 2  Density“ menu .

thanks for your advice, we have correct that. 

B/ When selecting “Display Setting” note that “percent of A” when selected (highlighted) does not show on display, but does show on display when not highlighted (i.e selection for this setting is not like other display selections but is inverted)

hi , your operation is not correct. will guide you if can be used in the future.