One-Point Calibration - Elcometer 138 Manual Del Usuario

5 USING THE CONDUCTIVITY METER (continued)
Conductivity S/cm Display
Press the CAL button
for 0.5 seconds
Conductivity S/m Display

5.5 ONE-POINT CALIBRATION

1 To set 'One-point calibration', switch the
meter on, press and hold the MEAS button
for 3 seconds. Press the CAL button until
appears.
CAL
2 Press the MEAS button again for 0.5
seconds and the calibration type will be
displayed (1 or 2). Press the CAL button
to change the setting to 1 as required and
press MEAS again to apply the setting.
3 Open the protection cover and place some
drops of the 1.41mS/cm standard solution
into the measurement cell. Washing the
sensor with standard solution beforehand
may provide more accurate calibration.
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Press the CAL button for
0.5 seconds
Press the CAL button for
0.5 seconds
TDS ppm Display
Press the CAL button
for 0.5 seconds
Salt Concentration % Display
MEAS
Button
Protection
Cover
R
CAL
Button
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