7
Backlight
The backlight increases screen readability in low
-
light conditions.
1. Press MENU/
▼
to scroll to Settings option.
2. Press HOLD. The display shows TDS factor and
Backlight.
3. Use the MENU/
▼
button to scroll to the Backlight
option.
4. Press HOLD. The options are ON and OFF.
5. Use MENU/
▼
to scroll to the desired option.
6. Press HOLD
to select. The display shows the
selection with a check mark and returns to the Setup
screen.
Temperature units
1. Press MENU/
▼
to scroll to Temp Set option.
2. Press HOLD. The display shows options
3. Press MENU/
▼
to select Set °C/°F. Press HOLD.
4. Press MENU/
▼
to select desired units and press
HOLD to confirm. The display shows the selected
unit with a check mark and returns to the Setup
screen.
Temperature Calibration
1. Press MENU/
▼
to scroll to Temp Set option.
2. Press HOLD. The display shows options.
3. Press MENU/
▼
to select Temp Cal. Press HOLD.
4. The lower display shows the current measured
temperature reading based on the last set offset. The
upper display shows the current measured
temperature reading based on the factory default
calibration.
5. Dip the tester into a solution of known temperature
and allow time for the built
-
in temperature sensor to
stabilize.
6. Press MENU/
▼
to adjust the temperature value or
press HOLD
to confirm the calibrated value as the
new temperature value of the solution.
Note:
To exit this program without confirming the
calibration, press CAL/ESC.
