Teledyne LXT-220 - Manual (Page 45)

Dissolved Oxygen Controller Operation
Teledyne Analytical Instruments 45
DO 7.80
M 50.0% 25.0 O C
Main Menu, DO
Procedure:
1. If not at the Main Menu, press the appropriate MENU
SELECTION key to reach the Main Menu.
2. Press both horizontal ◄►CALIBRATE keys simultaneously to
enter the calibrate mode and observe the "M" appearing in front
of the % current output value. The "M" signifies that the manual
output is locked in the manual mode.
3. Using the horizontal CALIBRATE keys one at a time, position
the cursor under the digit to be adjusted.
4. Increase or decrease the value by pressing the appropriate
vertical ▲/▼ CALIBRATE key.
To release manual output:
1. Return to the Main Menu by pressing the appropriate MENU
SELECTION key.
2. Observe that the "M" appears in front of the % current output
value. This "M" signifies that the transmitter output is in
manual.
3. Press only the left-hand ◄ CALIBRATE key and observe the
"M" disappear, releasing the LXT-220 from the manual output
mode. The % output value will return to the real-time current
output.
3.4.2 Parameter Selection Menu
Scroll down from the main menu to reach the parameter set up
menu. Once in the Parameter set up menu select the function you would
like to enter.