Emerson 4500 Manuel D’Utilisation

Reference Manual 

00809-0100-4027, Rev AA
December 2005

3-11

Rosemount 4500

LCD Display Configuration

The Meter Options command customizes the LCD display. The LCD display 
display will alternate between the items selected. Configure the meter to 
display the following information to suit your application needs:

•

Engineering Units

•

Percent of Range

•

Scaled Variable

•

Temperature

AMS

Right click on the device and select “Configuration Properties” from the menu.

1. In the “Device” tab, locate the “LCD Display Configuration” area. Select 

the desired options to suit your application needs, click Apply.

2. An “Apply Parameter Modification” screen appears, enter desired 

information and click OK.

3. After carefully reading the warning provided, select OK.

DETAILED SETUP

Failure Mode Alarm and 
Saturation

4500 transmitters automatically and continuously perform self-diagnostic 
routines. If the self-diagnostic routines detect a failure, the transmitter drives 
the output to configured alarm values. The transmitter will also drive the 
output to configured saturation values if the applied pressure goes outside the 
4-20 mA range values.

The transmitter will drive its output low or high based on the position of the 
failure mode alarm switch, see “Set Switches” on page 2-5.

NOTE
The failure mode alarm direction can also be configured using the HART 
Communicator or AMS.

4500 transmitters have three configurable options for failure mode alarm and 
saturation levels:

•

Rosemount (Standard), see Table 3-1

•

NAMUR, see Table 3-2

•

Custom, see Table 3-3

Fast Keys

1, 3, 7