Thermo Scientific 49i Instruction Manual page 89

Digital Input Settings
Thermo Fisher Scientific
The Digital Input Settings menu displays a list of the 16 digital inputs
available, and allows the user to select the logic state and instrument
parameter for the relay selected.
Note The digital inputs must be asserted for at least one second for the
action to be activated.
• In the Main Menu, choose Instrument Controls > I/O Configuration >
Digital Input Settings.
• Use
• Press
DIGITAL INPUT SETTINGS:
>1
2
3
4
5
6
7
RANGE
Logic State The Logic State screen is used to change the I/O relay to either normally
open or normally closed. The default state is open, which indicates that a
relay connected between the digital input pin and ground is normally open
and closes to trigger the digital input action. If nothing is connected to the
digital input pin, the state should be left at open to prevent the action from
being triggered.
• Press
DIGITAL INPUT SETUP:
>LOGIC STATE
INSTRUMENT ACTION
RANGE
and to move the cursor up and down.
to select a choice.
NOP SET BACKGROUND
NOP OZONATOR LVL 1
NOP OZONATOR LVL 2
NOP AOUTS TO ZERO
NOP AOUTS TO FS
NOP
NOP
AVG DIAGS ALARM
to toggle and set the logic state open or closed.
AVG DIAGS ALARM
Instrument Controls Menu
NONE
NONE
OPEN
Model 49i Instruction Manual
Operation
3-53