Option
Parameter
Unit
Measurement
interval
Signal average
Cleaning interval
Wiper mode
Sludge mode
Bypass
Output mode
Service reminder
Reminder interval
Reset to defaults
5.3 Calibration
5.3.1 Standard calibration
1. Go to the device menu as follows:
12 English
Description
Selects the measured parameter:
• NT3200sc—NO
-N, NO
3
• NT3100sc—NO
-N, NO
X
Sets the measurement units. Options: mg/L (default) or ppm
Sets the measurement interval. Options: 15, 30 seconds, 1, 5 (default), 10 or
30 minutes
Sets the number of saved measurements the controller uses to calculate the average
measurement: 1 to 12 (default: 3). The signal average setting decreases the variability
of measurements. The controller shows and saves the average measurement to the
data log. In addition, the controller updates the relays and analog outputs to the
average measurement.
Sets the cleaning interval: 1 for each measurement (default), 1, 5, 10, 30 minutes, 1,
6 or 12 hours
Note: Changing the cleaning cycle can impact measurement results and the life time of
the wiper blades.
Sets the wiper cleaning cycle:
• Single—The wiper makes one movement, from one side to another, with each
cleaning cycle.
• Double A-B-A—The wiper makes two movements with each cleaning cycle. Starts
at position A, moves to position B and then returns to position A.
• Double B-A-B (default)— The wiper makes two movements with each cleaning
cycle. Starts at position B, moves to position A and then returns to position B.
Note: A and B are the two final positions of the wiper movement. Select the correct
setting based on the probe installation. When the wiper stops, it must be in the top
position.
Sets the number of measurements done for each concentration calculation. Set to Off if
a flow through unit is used.
Sets Bypass to No (default) or Yes. Select Yes when the probe is installed in a flow
through unit.
Note: When Bypass is set to Yes, the wiper out position is disabled. Remove the probe
from the flow through unit before a wiper replacement or test.
Sets the output mode during calibration or maintenance tasks:
• Hold—Keeps the last measured reading when the controller goes to the calibration
or maintenance menu.
• Active—Transmits the current reading. The controller corrects the reading with the
last saved calibration data.
• Set transfer—Transmits the transfer value entered in the system setup.
• Selection—The controller asks for a value each time it goes into calibration or
maintenance menu.
Sets the time interval for service reminders. Options: off, 3, 6, 12 (default) or 24 months.
Sets the time interval for maintenance reminders. Options: 1 day, 3 days, 1 week
(default), 2, 3 or 4 weeks.
Sets the configuration settings back to the factory defaults.
-N, NO
-N (default) or NO
2
X
, NO
-N (default) or NO
X
3
, NO
, NO
3
2
X
3