Μs, Ms Measurement; Tds (Ppm) Measurement - Tintometer Lovibond SensoDirect 150 Mode D'emploi

C-2
C-3
Manual range operation
The meter default is set to auto range mode. Under auto range measurement, the bottom
right display will show the "Auto Range" indicator. If manual range mode is required, the
procedures are as follows:
1. Press the "Range" button continuously for at least two seconds until the bottom right
display shows the "Manual Range" indicator. Release the "Range" button. Now the
meter is set for manual range operation.
2. Press the "Range" button once to change the range. The range (200 µS, 2 mS,
20 mS, 200 mS) will show under the measurement value.
3. • If the display shows "
Select the next, higher range.
• If the display shows " ---- ", it indicates an underrange.
Select the next, lower range.
4. To change Manual Range back to Auto Range, press the "Range" button continu-
ously for at least two seconds until the bottom right display shows the "Auto Range"
Indicator. Release the "Range" button. Now the meter is set for Auto range mode
again.
Change the Temp. unit to °F
To change the Temp. unit from °C to °F, please refer to chapter 7.6 (Temp. Unit Default
Setting)
Change the Temp. Coefficient Factor
The default Temp. compensation factor value of the measurement solution is set to 2.0%
per °C. To change it, please refer to chapter 7.8 (Temp. Compensation Factor Setting).

4.2 TDS (ppm) measurement

Measuring procedures are the same as above 4.1 Conductivity (µS, mS) measurement,
SensoDirect 150
4.1 µS, mS measurement
1. Attach the Conductivity Probe by installing
the "Probe Plug" (Fig. C-1) into the "CD
Socket" (Fig. A-14).
2. Power on the meter by pressing "Power"
button once.
C-1
3. Keep pressing the "Mode" button until
the bottom right display shows a value
Fig. C
(e.g. "200 mS") and "Auto Range".
4. Remove probe cap and hold the probe
body (Fig. C-2) and completely immerse
the "Sensing Head" (Fig. C-3) in the solu-
tion to be measured. Swirl the probe to
let any air bubble escape from the sensing
head.
5. The display will show the conductivity
values in either "mS / cm" or "µS/ cm".
At the same time the bottom left display
will show the Temp. value of the meas-
ured solution.
----
", it indicates an overrange.
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