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IP2046/IM
Nov 2006
4.4.15 Setting the 4 and 20mA levels using actual liquid levels in the tank
Screen display (SEt 4 & SEt 20)
Factory default value Hold
If you have already programmed the 4 and 20mA levels as above, you do not need to enter this menu. All
the programming is now complete and you should press the red button ↵ to exit the programming menu
and return to the main PV display.
If, however, you wish to set the 4 or 20mA level by ranging the instrument to a known target – perhaps the
level in the vessel at this time – then press the blue button → to enter this menu.
To set the 4mA level
a) With the MSP400 aimed at a target a distance away equivalent to the 4mA level, press the blue →
button to display the value for the 4mA setting. Press the blue button → to allow setting, and the display
will alternately flash “4” with the current level reading.
b) Press blue button → to confirm the correct value for the 4mA level then press red button ↵ to save the
new value for the 4mA setting.
c) With the MSP400 aimed at a target a distance away equivalent to the 20mA level, press the blue →
button to display the value for the 20mA setting. Press the blue button → to allow setting, and the display
will alternately flash “20” with the current level reading.
d) Press blue button → to confirm the correct value for the 4mA level then press red button ↵ to save
the new value for the 20mA setting.
Programing of the MSP400 is now complete.
Check the main display to ensure the duty, units and PV are correct, and that relays are on or off
according to the set points programmed.
The cover may now be replaced, refer back to section 3.3.2