Siemens Sitrans, LC 500 Appendix A, Left, Arrow, Position, Disables 2-button, Disables 1-button

Range Inversion

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.

Menu	Rotary
	Switch	Left Arrow	Description	Mode		Values
Item	Position
19	9	On	Range Inversion	normal	*	Display shows nor
				inverted		Display shows 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.

Keylock Level

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.

Note: 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.

•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.

Menu	Rotary	Left		Protection		Display
	Switch					local	HART
Item		Arrow	Level		Description
	Position					settings	settings
			0	*	No restrictions	PL 0
					No restrictions		PH 0
			1		Disables 2-button	PL 1	PH 1
					adjustments
1F	F	On
			2		Disables 1-button	PL 2	PH 2
					adjustments
			3		Disables all	PL 3	PH 3
					changes

1.Set the rotary switch to F.

2.Press the RED (+) or BLUE (–) button to change the setting.

Appendix A

7ML19985GE01 SITRANS LC 500 – INSTRUCTION MANUAL Page 73