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6-2 TDS /Salt/Hardness/Resister measurement
The measuring procedures are same as above
Press the "Function Button" (3-6, Fig. 1) once , to select
Conductivity/TDS /Salt/Hardness/Resister mesure in squer.
6-3 Zero Calibration
If the probe not immerse the measurement solution and
display not show zero value,
Use the two fingers to press the " ▲ Button " ( 3-5, Fig. 1 ),
and " ▼ Button " ( 3-6, Fig. 1 ) ,Until Display will show the
following screen then release the both fingers.
Calibration
Press the " ▲ Button " ( 3-5, Fig. 1 ) or " ▼ Button " ( 3-6, Fig. 1 )
select to Zero calibration point, then press enter key the display
will show display show zero, The zero function only valid for the
200 uS range and the not zero value is < 2.0 uS.
6-4 Calibration
1) Prepare the standard conductivity solution ( optional )
For example :
2 mS range calibration solution :
1.413 mS Conductivity Standard Solution, CD-14
200 uS range calibration solution :
80 uS Conductivity Standard Solution
20 mS range calibration solution :
12.88 mS Conductivity Standard Solution
or other Conductivity Standard Solution
2) Install the " Probe Plug " ( 6-1, Fig. 3 ) into the
" CD Socket " ( 3-15, Fig. 1 ).
Temp. Calibration
Zero Calibration
=>
Gain Calibration
Clear
Escape Calibration
21
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