Rosemount 4500

Reference Manual

00809-0100-4027, Rev AA December 2005

Rerange with AMS only

Damping

Fast Keys

1, 3, 6

 

 

LCD DISPLAY

Right click on the device and select “Configuration Properties” from the menu. In the Basic Setup tab, locate the Analog Output box and perform the following procedure:

1.Enter the lower range value (LRV) and the upper range value (URV) in the fields provided. Click Apply.

2.An “Apply Parameter Modification” screen appears, enter desired information and click OK.

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

Rerange with a Pressure Input Source and AMS

Right click on the device, select “Calibrate”, then “Apply values” from the menu.

1.Select Next after the control loop is set to manual.

2.From the “Apply Values” menu, follow the on-line instructions to configure lower and upper range values.

3.Select Exit to leave the “Apply Values” screen.

4.Select Next to acknowledge the loop can be returned to automatic control.

5.Select Finish to acknowledge the method is complete.

The damping command introduces a delay in processing which increases the response time of the transmitter; smoothing variations in output readings caused by rapid input changes. Determine the appropriate damping setting based on the necessary response time, signal stability, and other requirements of the of loop dynamics of your system. The default damping value is 0.4 seconds and is user-selectable from 0 to 60 seconds.

AMS

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

1.In the “Basic Setup” tab, enter the damping value in the “Damp” field, click Apply.

2.An “Apply Parameter Modification” screen appears, enter desired information and click OK.

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

The LCD display connects directly to the sensor electronics board which maintains direct access to the signal terminals. The display indicates output and abbreviated diagnostic messages. A display cover is provided to accommodate the display.

The meter features a two-line display and a 0-100% scaled bar graph. The first line of five digits displays the actual value, the second line of six characters displays engineering units and “Error” displays on both lines when the transmitter is in alarm. The LCD display can also display diagnostic messages.

3-10

Page 26
Image 26
Emerson 4500 manual Damping, LCD Display