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DataView™ LI55 Level Controller
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.
MN301033 Rev B1
Instruction Manual
91
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Troubleshooting
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