Taking Measurements; Calibration - Lovibond SensoDirect Salt110 Bedienungsanleitung

4. Taking measurements

1. Connect the Salt probe to the probe input socket (Figure 1, 5).
2. Power on the instrument by pressing the Power ON Button.
3. Hold the „Probe" Handle by hand and immerse the Salt Sensor wholly into the meas-
ured solution. Shake the Probe several time to let the air bubble leave away from the
Salt Sensor until the reading value reach stable. Display will show the salt values (%
weight) as NaCl.
4. The Probe Head has build in a temperature sensor for the usage of automatic Temp.
compensation. If the temperature of measured salt solutions is changed, then it
should take few minutes to let the display reading reacht the stable value.
5. Press the „Hold Button" (Figure 1, 4) will hold the measured value and the LCD will
indicate a „Hold" symbol on the display during the measurement. Press the Hold Button
again to exit the data hold function.

5. Calibration

Figure 2
To calibrate the meter:
1. Prepare a 0.6% weight salt Solution (NaCl)
For example: 1000g salt Solution contain 6g salt.
2. Hold the Probe Handle by hand and immerse the let the Probe Head wholly into the meas-
ured solution. Shake the Probe several time to let the air bubble leave away from the Probe
Head until the reading value reach stable. Calibrate the instrument with the calibration
screws (Figure 2, 6) until display show the value same as 0.60 exactly
3. Alternative Calibrations
Concentration
3%
8%
8
vernier adjustment
rough adjustment
1000g salt solution
contains
30 g Salt
80 g Salt
6000 mg/l (ppm).
mg/l (ppm)
30000
80000
Display reading
3.00
8.00
SensoDirect 110