Dot-x SERIES Dokumentacja Pobierz pdf (Strona 46)

DOTX-45 Dissolved Oxygen System Part 6 – Configuration

DOTX-45 45 -

When failsafe is selected to be ON, the normally-open

contacts of the relay will be closed during normal operation.

In an attempt to make this configuration less confusing, the

LCD icon logic is reversed with this setting, and the icon is

OFF under this normal condition. Therefore, when the trip

condition occurs, the closed N.O. contacts will be opened

(relay de-energized), and the LCD icon will illuminate. In

addition, a power fail would also cause the same contacts to

open.

Set Default The Set Default function allows the user to return the

instrument back to factory default data for all user settings or

for just the calibration default. It is intended to be used as a

last resort troubleshooting procedure. All user settings or

the calibration settings are returned to the original factory

values. Hidden factory calibration data remains unchanged.

Press ENTER to initiate user entry mode and select either

CAL or ALL with the UP arrow key. The default CAL routine

will reset the zero offset to 0.0 nA and reset the slope to

100%. The default ALL routine will reset all program

variables to factory default and should be used with care

since it will change any user settings that were programmed

in the field.

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Dot-x SERIES Dokumentacja Strona 46