MODEL 54eA | SECTION 5.0 |
| SOFTWARE CONFIGURATION |
5.11MAIN SENSOR CALIBRATION PARAMETERS
1.Main sensor refers to the amperometric sensor.
Noise rejection
Main sensor cal
Security
ExitEnter
Stabilize : 0.050 ppm
Stabilize time: 10 sec
ExitEdit
Stabilize: 0.050 ppm
Stabilize time: 10 sec
Dual range cal : Disable
ExitEdit
Stabilize: 0.050 ppm
Stabilize time: 10 sec
Salinity : 0.0 o/oo
ExitEdit
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 é and ê 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
The choices depend on the measurement being made.
Stabilize and Stabilize time: For the controller 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 (50 ppb) and 10 seconds. Using a small stabilize value and a long stabilize time is the best protection against calibration while a reading is still changing.
Dual range cal: Free and total chlorine sensors from Rosemount Analytical (Model
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 solu- bility. If the salt concentration is greater than about 1000 ppm, the
accuracy of the measurement can be improved by applying a salini- ty correction. Enter the salinity as parts per thousand (o/oo). One per- cent is ten parts per thousand.
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