Nova-Tech pH-Dissolved Oxygen Meter - Manual (Page 24)

47 46
% saturation mode—P7.0: Resetting to factory default
settings
This program lets you reset all parameters to factory default settings. This clears all
calibration data, memory, and any other setup functions you might have changed.
The LCD contrast setting will be reset to 8 (the maximum setting). However, the
following settings will remain as you have set them:
• temperature unit of measure (°C or °F)
• the temperature offset calibration value
• pH calibration data and set parameters
SETUP
A
SETUP
SETUP
B
8.12
From measurement mode:
1. Press the MODE key to select the
% saturation measurement mode.
2. Press SETUP key to enter SETUP mode.
3. Press the ▲ and ▼ keys to scroll through
subgroups until you view parameter P7.0
in the lower display.
See figure
4. Press the ENTER key.
See figure
5. Press the ▲ and ▼ keys to toggle
between NO and YES.
• NO retains current settings
• YES resets to factory default settings
6. Press the ENTER key to confirm
selection and to return to measurement
mode.
Notes
To reset all pH data, see page 38.
To reset all mg/l (ppm) data, see page 55.
See page 68 for a table of factory default
settings.
A
B
mg/l (ppm) mode—P1.0: Dissolved Oxygen Parameters
This sub group lets you adjust the barometric pressure and salinity.
P1.1 Pressure adjustment mode
Barometric pressure is vital to correct dissolved oxygen measurements. You need to
enter the correct barometric pressure of the area you are measuring. This mode lets you
perform two functions:
• Select either mm Hg or Pascal barometric pressure units
• Adjust the barometric pressure. See Appendix 2 on page 67 for a “Pressure vs
Altitude” table.
8.13
From measurement mode:
1. Press the MODE key to select mg/l (ppm)
mode.
2. Press the SETUP key to enter SETUP mode.
3. Press the ▲ and ▼ keys to scroll through
subgroups until you view parameter P1.0
in the lower display.
See figure
4. Press the ENTER key twice. The upper
display shows either Hg or PA and the
lower display shows bAr.
5. Press the ▲ and ▼ keys to toggle between
mm Hg and Pascal units.
See figure
6. Press the ENTER key to confirm selection
and move to the next screen. The upper
display shows the barometric pressure and
the lower display shows the units selected
in step 5.
See figure
7. Press the ▲ and ▼ keys to adjust
the barometric pressure. The pressure
adjustment range is 500 to 1499 mm Hg
(66.6 to 199.9 kPa).
8. Press the ENTER key to confirm
selection and move to P1.2 on page 48
(salinity adjustment). If instead you want
to return to measurement mode, press
CAL/MEAS twice.
NOTE: Salinity adjustment appears in
mg/l (ppm) measurement mode only.
SETUP
SETUP
SETUP
A
A
B
B
SETUP
C
C
http://www.novatech-usa.com/Products/Laboratory-Equipment-Supply-Products Tel: (281) 359-8538 Toll Free:(866) 433-6682