Measurement; Salinity/Chloride Compensation; Automatic Temperature And Pressure Measurement - Tintometer Lovibond SD 400 Oxi L Instrucciones

2. Calibration in water-saturated air:
The sensor is exposed to the air with a relative air humidity of 100 %. For this purpose, the
storage sleeve with water-soaked sponge is screwed on the sensor and a waiting period of
at least 15 minutes is observed until the measurement value has stabilised.
Performance of the single-point calibration:
1. CAL is selected with the arrow keys (RIGHT/LEFT) and confirmed with ENTER.
2. The single-point calibration selection appears in the display and is confirmed with ENTER.
3. The prompt to place the sensor in 100 % air-saturated water is displayed. Press ENTER to
start the calibration.
4. The display shows that the calibration is in progress.
5. The display shows when the calibration has finished. In order to exit calibration mode,
press ENTER.
Comments:
1. Please follow Steps 1 to 5 for the single-point calibration.
2. If an error message is shown in the display, the process is ended with ENTER.
3. The calibration in air-saturated water and water-saturated air are performed identically.
4. The calibration process can be interrupted by pressing and holding the ENTER button for
2 seconds.
Resetting to factory settings
In order to reset the instrument to the factory settings, CAL is selected. Calibration settings
is selected with the arrow keys and confirmed with ENTER. Factory settings appears in the
dialogue and is then confirmed with ENTER.

9. Measurement

9.1 Salinity/chloride compensation

S : Factory setting; is selected when testing fresh water samples that contain practically
OFF
no ions.
S : If the salinity correction is activated (see 7.3), the conductivity (in ppt or mS/cm) of the water
ON
sample to be measured is entered and automatically compensated for in the measurement.
Chloride compensation: If chloride is present in the sample, the chloride concentration can
be entered as salt concentration:
Salt concentration (in ppt) = chloride concentration (in ppt) x 1.80655.
For example, a chloride content of 20 ppt equals a salt content of 36.13 ppt (20 x 1.80655).

9.2 Automatic temperature and pressure measurement

The instrument adapts the instrument's settings to the measured temperature and/or the
measured environmental pressure in order to factor in dynamic fluctuations in the environment.
28 SD_400 Oxi L_1 01/2016