Emerson 475- Manuals

5 1-2 Power on the 475 Communicator by pressing and holding the power key until the green light on the power key blinks. 1-3 From the main menu tap the HART icon. The HART icon can be seen in the upper left corner of Figure 2. Figure 2 shows the main screen of the 475 Communicator. 1-4 The 475 Commu...

7 Section 2: Changing Calibration Values The 475 Communicator provides multiple screens and menus for calibrating the Radar. The Radar range can be calibrated from the home screen using menu items “ 4 PV LRV ” and ” 5 PV URV ” or by entering “ 1 Device setup “. Changing the range from the home scree...

8 2-3 Be aware of the “unit of measure” shown next to the current URV and LRV (ft = feet) when entering your desired distance. When you have entered the distance tap the “ ENTER” button. The change will not take effect until they are sent to the Radar. To send the changes to the Radar tap the “ SEND...

9 Using Device Setup to Change Calibration Values 2-4 Figure 9 (left) shows the Home screen. Range calibration and other programmable values can be accessed by selecting “ 1 Device setup ”. The Device setup screen is shown in Figure 9 (right). Figure 9 after selecting menu 1 from the home screen (le...

11 Device Setup  Basic Setup  Damping 2-10 Process variable measurement is averaged using a damping factor known as PV Damp. Radar units are shipped with a PV Damp default value of 5. The PV Damp value can be changed from the Basic setup screen menu ” 7 ”. Figure 13 shows the PV Damp edit screen. ...

12 2-12 From the Diag/Service (Figure 15 left) select menu “ 3 Calibration ” to display the Calibration screen. From the Calibration screen (Figure 15 right) you have the choice of manually entering distance values or using the measured distance. To manually enter the distance, select menu “ 2 Enter...

13 Figure 17 shows the URV edit screen. Figure 18 shows the URV edit screen. 2-14 The measured distance is displayed in the top section of Figure 18. To use this distance select menu “ 1 Set as 4mA value ”. If the distance is incorrect adjust the target or wait for the target distance to reach the d...

14 Warnings Screens 2-15 Changing calibration values in the Radar may affect the loop current. Warning screens like those shown in Figure 19 may appear. Tap the “ OK” to proceed with the calibration change. After a calibration value has been changed on the 475 Communicator the changes must be sent t...

15 Non-zero Status Screens 2-16 When a calibration value is changed in the Radar a configuration change flag bit is set in the resulting HART status code. The 475 Communicator will detect the flag and display a non-zero status code screen as shown in Figure 21. The screen is a confirmation that the ...

16 Section 3: Reviewing Calibration Settings 2-17 The 475 Communicator provides a set of menus to review the Radar calibration settings. From the “ Device setup ” screen select menu “ 5 Review ” (Figure 22). Figure 22 shows the Review menu item highlighted. 2-18 The “Review” screen, Figure 23 provid...

Appendix A: Quick Reference – Short Cut to Range Values Figure 24 shows the menu selections to change the URV and LRV.

19 Appendix C: Quick Reference – Menu Path to 4mA and 20mA Calibration Figure 26 shows the menu path to 4mA and 20mA calibration. The lower half of the diagram illustrates setting the 4mA value to the measured distance.