4.4.3 Setting the correct bottom reference

Screen display:

b.rEF

 

Factory default value:

 

 

MSP400RH-B28

11

 

MSP400RH-N28

36

The MSP400 leaves the factory with the bottom reference pre-programmed to the maximum range of the instrument, either 11m or 36ft.

20/4

4/20

ullage

liquid level

b.rEF

To change the bottom reference:

a)Press the green button to display the current “b.rEF” menu entry screen.

b)Press the blue button to enter the “b.rEF” menu and to display the current bottom reference in use.

It is quite unlikely that the factory default value for bottom reference will suit your application. To edit the bottom reference, press the blue button to enter the editing mode.

The leading digit of the current bottom reference will now be flashing, indicating it may be changed.

c)Use the green button to edit the value of the leading digit.

Be careful not to enter a value greater than the maximum range of the MSP400: 11m or 36ft.

The value of the leading digit should therefore be 1 or 3 as a maximum, depending upon the units of measurement chosen earlier.

Once correct, use the blue button to select the next digit and then the green button to edit as before, or the blue button to move to the next digit. Continue this sequence until all 5 digits are correct.

d)Press the blue button a final time to confirm the new value. None of the digits should now be flashing.

e)If the new bottom reference value is incorrect, the edit sequence for the bottom reference can be re- started by pressing the blue button again.

If the new bottom reference is correct, press the red button to save the new value to memory and automatically scroll on to the next main menu option:

Note:

If the user has chosen a duty of Flow or Contents, the next menu option offered will be “ProF”. Refer now to sections 4.4.4 to 4.4.9.

If the user has chosen a duty of Level or Distance, the next menu option offered will be “4”. Skip sections 4.4.4 to 4.4.9 and refer now to section 4.4.10.

TIP: a feature of the MSP400 useful at this stage is that it can be used as an electronic tape measure. With an empty tank or vessel, select Distance as the duty and the MSP400 will read the distance to the bottom of the tank. This can be noted and used when setting b.rEF

17

IP2046/IM

Nov 2006

 

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Image 17
Emerson IP2046IM, MSP400RH manual 20/4 Ullage Liquid level