Nova-Tech pH-Dissolved Oxygen Meter - Manual (Page 13)

24 25
Taking measurements with READY indicator selected on
If the READY indicator has been activated, the READY annunciator lights when
the reading is stable. Switch the READY indicator on or off in Set up program P3.1—
see page 35 for directions.
Taking measurements with the auto endpoint feature selected on
When a reading is stable for more than 5 seconds, the auto endpoint feature will
automatically “HOLD” the reading. The “HOLD” indicator appears on the left side
of the display. Press the HOLD key to release the reading. Switch the Auto endpoint
feature on or off in Set up program P3.1—see page 35 for directions.
IMPORTANT: For manual compensation,
you must disconnect the DO or tempera-
ture probe (see page 9).
1. Switch the meter on. Press the MODE
key to select pH mode.
2. Press the CAL/MEAS key to enter pH
calibration mode. The CAL indicator will
appear above the primary display.
3. While in pH calibration mode, press
the MODE key to enter temperature
calibration mode. The primary display
shows the current temperature setting
and the secondary display shows the
default value 25°C.
See figure
4. Check the temperature of your sample
using an accurate thermometer.
5. Press the ▲ or ▼ keys to offset the
temperature to the measured value
from step 4.
See figure
6. Press ENTER to confirm the selected
temperature and to return to the pH
measurement mode.
The meter will now compensate pH
readings for the manually set temperature.
Notes
To exit this program without confirming the
manual temperature compensation value,
DO NOT press ENTER in step 6. Press
CAL/MEAS instead.
Manual Temperature Compensation
CAL
C
A A
5.4
CAL
C
B
B
http://www.novatech-usa.com/Products/Laboratory-Equipment-Supply-Products Tel: (281) 359-8538 Toll Free:(866) 433-6682