Siemens Sitrans 사용자 설명서

7ML19985GE01

SITRANS LC 500 – INSTRUCTION MANUAL 

Page 73

Displays whether the device is operating with a normal or inverted range setting. 
A normal range setting is where LRV (Menu 0E) is lower in value than URV (Menu 0F): the 
LCD displays nor. An inverted range is where LRV (Menu 0E) is higher in value than URV 
(Menu 0F): the LCD displays inv.

1. Set the rotary switch to 9. 
2. Press both buttons simultaneously for more than one second to toggle between 

the two modes, effectively switching the values for LRV and URV.

Controls the access protection level for the device. The factory setting is a local 
protection level of 0, which places no restriction on modifying settings locally. 

•

Protection level 1 disables the ability to set a value by pressing two buttons 
simultaneously. 

•

Protection level 2 disables the ability to change a value by stepping it up or down. 

•

Protection level 3 completely disables all changing of values. 

1. Set the rotary switch to F. 
2. Press the RED (+) or BLUE (–) button to change the setting. 

19

9

On

Range Inversion

normal

*

Display shows nor

inverted

Display shows inv

HART settings override local settings:

•

If the HART setting is 0, there are no restrictions, and you cannot  change the 
protection to a higher level locally.

•

If the HART setting is 3, no changes can be made, and this protection level cannot 
be changed locally.

1F

F

On

0

* No  restrictions

PL 0

No restrictions

PH 0

1

Disables 2-button 
adjustments

PL 1

PH 1

2

Disables 1-button 
adjustments

PL 2

PH 2

3

Disables all 
changes

PL 3

PH 3