Parameter Setting of E+H Mass Flowmeter

The E+H mass flowmeter, leveraging the Coriolis force principle,is a precision instrument capable of directly measuring the massflow of media passing through it, as well as determining themedia's density and indirectly measuring its temperature. Thisarticle will provide a comprehensive guide on setting theparameters of an E+H mass flowmeter.

1. Accessing the Main Menu

To begin, press the "E" key to enter the main menu.

2. Modifying Units

Step 1: Navigate to "SYSTEM UNITS" and press the "+" key toselect. Here, you can modify the units for mass flow anddensity.

Step 2: To change the mass flow unit, press the "+" key andconfirm with the "E" key. If no changes are needed, press the "E"key to proceed to the next parameter.

Step 3: To modify the density unit, press the "+" key. Apassword of "80" is required for this change. Use the "+" or "-"keys to select the desired unit and confirm with the "E" key. If nochanges are needed, press the "E" key to move on.

3. Display Settings

Step 1: In the main menu, select "USER INTERFACE" using the "+"key and press "E" to enter.

Step 2: Set the parameter displayed on the first line of thescreen to "DENSITY" by pressing the "+" key and confirming with"E". Then, press "E" again to set the parameter for the second lineto "MASSFLOW" and confirm.

4. Span Settings

Density Output (CURRENT OUTPUT 1):

Step 1: Use the "+" or "-" keys to navigate to "CURRENT OUTPUT1".

Step 2: Set the current output allocation to "DENSITY" andconfirm with the "E" key.

Step 3: Set the corresponding values for 4mA and 20mA using the"+" or "-" keys and confirm with "E".

Flow Output (CURRENT OUTPUT 2, if applicable):

Step 1: Navigate to "CURRENT OUTPUT 2" and press "E" toenter.

Step 2: Set the span using the "+" or "-" keys and confirm with"E".

5. Density Correction

Note: Density correction should only be performed when there isaccurate and real-time data on the media's density, such as fromlaboratory analysis. The density deviation between the fluid andthe meter's measurement should not exceed ±10%.

Step 1: Ensure the measuring tube is filled with media and freeof bubbles. If new media is introduced, wait until the temperatureof the measuring tube and media are consistent beforecorrection.

Step 2: Use the "+" or "-" keys to select the "PROCESSPARAMETE"menu for density correction and press "E" to enter.

Step 3: Continue pressing "E" until "DENSITY SET VAL1" appears.Enter the tested density value of the media. A password of "80" isre

Step 4: Input the media density, e.g., 1000 kg/m3, within therange of ±10% of the meter's measured density value.

Step 5: Confirm with "E" and select "START" for "MEASURE FLUID1" using the "+" or "-" keys. Confirm with "E". The meter willdisplay "RUNNING" for about 10 seconds while measuring the currentmedia density.

Step 6: Confirm with "E" again and select "START" for "DENSITYADJUST". Change "CANCEL" to "START" and confirm with "E". Thedensity correction is now complete. Press "+" and "-"simultaneously to return to measurement mode.

6. Additional Settings

Application Mode: In "PROCESSPARAMETER", select whether themedia is liquid or gas/steam in the "application" option and savethe setting.

Flow Units: In "SYSTEMUNITS", select the type of measurementunit (e.g., VOLUMEFLOW, CALCMASSFLOW, CORVOLUMEFLOW) and thecorresponding flow unit.

Resetting Accumulated Volume: In "TOTALIZER", select the desiredunit in "UNITTOTALIZER". If needed, reset the accumulated volume byselecting "YES" in "RESETTOTALIZER".

Conclusion

Proper parameter setting is crucial for accurate and reliablemeasurements with an E+H mass flowmeter. By following the stepsoutlined in this article, users can ensure that their flowmetersare configured correctly for their specific applications. Alwaysrefer to the instrument's manual and consult with experts iffurther assistance is re