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Stabilize : 0.050 ppm
Stabilize time: 10 sec
Exit Edit
Stabilize: 0.050 ppm
Stabilize time: 10 sec
Salinity : 0.0
o
/oo
Exit Edit
MODEL DO-03/04 SECTION 5.0
SOFTWARE CONFIGURATION
5.10 MAIN SENSOR CALIBRATION PARAMETERS
1. Main sensor refers to the dissolved oxygen sensor.
Noise rejection
Main sensor cal
Security
Exit Enter
2. Press any key to enter the main menu. Move the cursor to "Program"
and press Enter (F4).
3. Move the cursor to "Configure" and press Enter (F4).
4. Move the cursor to "Main sensor cal" and press Enter (F4).
5. Use the and keys to move through the list of items. To make a
change press Edit (F4). Use the arrow keys to change settings to the
desired value and press Save (F4). For allowed ranges, see Table 5-1.
The choices depend on the measurement being made.
Stabilize and Stabilize time: For the analyzer to accept calibration
data, the concentration must remain within a specified range for a
specified period of time. The default values are 0.05 ppm and 10 sec-
onds. Using a small stabilize value and a long stabilize time is the
best protection against calibration while a reading is still changing.
Salinity: Salinity is used with oxygen measurements only. The solu-
bility of oxygen in water depends on the concentration of dissolved
salts in the water. Increasing the concentration decreases the solubil-
ity. If the salt concentration is greater than about 1000 ppm, the accu-
racy of the measurement can be improved by applying a salinity cor-
rection. Enter the salinity as parts per thousand (
o
/oo). One percent
is ten parts per thousand.