Instruction Manual

DataView™ LI55 Level Controller Instruction Manual

91 | Page

F4 Operation

A digital input, F4, is standard on the meter. This digital input is

programmed identically to function keys F1, F2, and F3. The input is

triggered with a contact closure to COM, or with an active low signal.

During operation, F4 operates according to the way it has been

programmed in the

Advanced Features – User menu.

Maximum/Minimum Readings

The max & min readings (peak & valley) reached by the process can be

displayed either continuously or momentary:

1. Display briefly by assigning to the RIGHT, UP, or ENTER

buttons or to the digital input in the

User menu.

2. Display continuously by assigning either display to max/min

through the

Display menu.

Any of the RIGHT, UP, or ENTER buttons or the digital input can be

programmed to reset the max & min readings. The meters are set at the

factory to display the max reading by pressing the Up button and to use

the Right button to access the

Reset menu.

To display max reading using function key with factory defaults:

1. Press Up button to display maximum reading since the last

reset/power-up.

2. To reset max/min press Right button to access the Reset menu.

The max & min displays are reset to actual values.

3. Press Menu to exit max/min display reading.

To display max/min readings continuously:

Assign either display to Max (d Hi), Min (d Lo), or toggle between Max

and Min (

d HL) every 10 seconds.

ENTER

UP UP