Emerson 250, 350 Description Select PV, Select Alarm, Change Range, Select Upper Range Value URV

Description

Select PV:

This menu allows the user to select the measurement that controls the transmitter’s current output (mA).

This menu only appears if the interface (2 floats) option is provided.

Select Alarm:

The following alarm settings can be chosen: “FailHigh” = 21.00mA

“FailLow” = 3.50mA

“HoldOut” = holds last good reading until transmitter recovers.

Change Range:

This menu allows the user to change the measuring range or span. Enter the menu by changing the “No” to a “Yes” and press enter.

LCD Menu (examples)

- Select Lower Range Value (LRV):

This is the 4.00mA (0.00%) point on the senor. This value should only be incremented. For example if the value is changed from “0.00in” to “3.00in” the 4.00mA point will shift 3.00 inches higher than the original point. It is recommended to leave this at

0.00most of the time unless a special circumstance arises. Press enter to go the next screen.

- Select Upper Range Value (URV):

This is the 20.00mA (100.00%) point on the sensor. This value should only be decremented. Changing this parameter will change the measuring range or span of the transmitter.

Select Damping:

This parameter is used to slow down the reaction of the instrument in order to ignore or average out any agitation on the process surface that may be causing an unsteady output. The units are fixed in seconds and values can be from 1 to 26 seconds.