Please read this instruction manual and guarantee before use. Please keep both for future reference 

. Use in the Following Order;JlGa!i~ with~ solution &Measurement : 

[I] How to Calibrate Using 

Standard Solution 

(Before measurement) 

0 Press the POWER 

button. 

8Drop1.41 standard 

solution onto tho 

sensor cell. 

8 Press the CAL/MODE button to display the (!! mark and 1.41. 

I Lll 

I. I I 

E) Calibration is 

complete when 

the (!! mark disappears. Wash 

the sensor with 

tap water, and 

wipe any residual 

water with a tissue. 1-

' t!! ,.. mS/cm 

A binking r!l mark indicates that the unit : 

is not calibrated. Check that the correct : standard solution was used and calibrate : 

Occasionally calibrate using the standard solution to achieve more accurate measurement. (At least once 

a day is recommended.) 

~ How to Measure 

The two parameters of conductivity 

and salinity can be measured. 

•To Measure Conductivity 

Ocheck that the .. mark indicates 

either of the mSicm or ,uS/em 

modes, and drop the of sample solution onto the sensor cell. 

Jl S em 

@when the Q mark appears, read the 

figure. 

: Note: The range automaticall'f switches b~Z'Neen 

the mS/cm and JLS/cm '"anges accord1ng to : 

the concentration of the sample solution. 

•To Measure Salinity 

@check that the.,.. 

mark indicates 

the % mode, and 

drop the of sample solution onto 

the sensor cell. 

..,.., 00 

@When the Q mark appears, read the 

figure. 

eEach press of the GAL/MODE button chang~:;:s 

the ,..mark in order : mS/cm or ,uS/em, S!!t , and% mode. 

Note: When the figure to be measured is outside of 

the measurable range (20mS/ em or more 

for conductivity and 1.1°/o or more for salinity), the displayed figure will blink. U::;~ this 

figure as a reference value.) 

There are two ways of measuring depending on the condition of the sample. 

Immersion Measurement Flat Surface Measurement 

Immerse the sensor in the 

sample. Do not immerse pa;~t 

the immersion level line. 

Levell.ine 

-~, . (:,0 

------' 

Drop the sample onto the 

sensor cell 

using a pipet. 

In both cases, read the displayed figure when the Q mark appears. 

Note: Drop an appropriate amount of standard or sample 

solution onto the cell as sh,Jwn in the figure. If there is not enough solution O; the solution contains 

bubbles. the measurement will be inaccurate. 

Appropriate amount 

;':';~_:--'. 0 

"sensor 

-cell 

Use the hold function 3S it aids measurement. 

Manual Hold Automatic Hold 

Press the HOLD button during measurement 

to hold the measured value. 

(The H mark also appears.) 

To cancel the hold mode, press the HOLD button again. 

After Measurement 

0 Press the POWER button to turn the power OFF. 

e) WCJsh the sensor with tape water, and wipe off any residual water on the 

a tissue. 

f1) Replace the protection cap over the sensor. 

Accessories 

Electrode ( x 1) 

040950000 

sensor with 
Instruction (2) 

Name and Function of Each Section 

0 

0 Conductivity cell 

8 Power button 

The power will automatically turn off 

no buttons are pressed for 15 minutes. 

~ CAL/MODE button 

Continuous push button makes 

mode change of CAL(calibration)~ 

salinity measure-conductivity measure. 

The calibration values are stored in 

memory even after the power source 

is turned off. 

0 HOLD button ® 

"'411- • e 0 o ~/ -1 L/ 

0-lll lloc t!J •% 

I 0 Lf 8 f• mStcm •- • JIS!cm r- ~ 

0 0 0 

0 HOLD indicator Cl 

0 Display of conductivity/salinity values 

Displays blink when the figure to be 

measured is 20mS/cm or more for 

conductivity and 1.1% or more for 

salinity. 

f) Stabilization indicator Q 

«i) Range/mode indicator 

0 Calibration indicator c!! 

Appears during calibration. When 

the unit has not yet been calibrated, 

this indicator blinks during the calibration mode as well as the measurement mode. 

4Ji) Temperature alarm oc 

Blinks when the temperature of the 

sample is outside 5-35'C. 

fD Battery alarm Ifill 

4fl Standard solution 1.41mS/cm 

fi) Purified water (Deionized water) 

CD Pipet 

Gil Storage pouch 

Handling Precauti ns i Please read this before use, and keep. !(. I 

• Should not be dropped, and j 1 11 

Be cautious about the following.~~~\' \~' '\ "' f'./;1 

excessive force should not 

be applied. .--

• The sensor should 

not be pressed 

with undue pressure. 

'•~ / 

y / 

• Should not be immersed or wet 

past the immersion level line. 

",Lid =7~\1<>=.~~- 0 ,.....,..__.../, 0 

.. ·... . ~' 

• The surface of the • Samples of high 

electrode has been temperature (above 

specially treated. 35'C) should not be 

Should not be all- measured. 

owed utensils (tweezers, etc.) to 

come into contact 

with it, otherwise 

the electrode may • Should not be wabecome damaged. shed with thinner, 

\~ \ e~zine, et~ 

•Should n:~ be all- ~:; c;j()::_V 

owed to stand in \!"" -~,-1 '"-' 

~ -

direct sun light or 7, C::O ~ 

at high ·tempera- . : A 

lure and humidity. ,~ 

•It should be recommended to turn on the power without liquid in the cell. 

• The cell should be washed with the sample about 3 times before the 

measurement. 

•In principle, objects of measurement a·e aqueous solutions. 

Should not be used for measurement of samples that are likely to damage 

the sensor cell (such as solids, organic solvents, surfactant, oil adhesive, 

alcohol, strong acids (pH: 0-2), strong <:lkalis (pH: 12-14), etc.), otherwise the 

life of sensor will be extremely short. 

• Unstable indication is caused by prolonged non-use leaving in an extremely 

dry condition. Pour the sample of the standard solution into the cell and 

leave for a few minutes. 

•The indication of CAL is not the value of measuring, but the conductivity 

value of the standard solution. • 

eWhent!!l blinks (CAL alarm), check the standard solution and calibrate again 

properly. 

• When the standard solution touches your hand or skin, wash it with water. 

If the standard solution touches your eye, immediately wash it with water and 

consult a doctor. 

• Clean the cell with diluted neutral detergent 

(diluted approx. 100 times). In the case · · 

· The inside of the cell is contaminated. 

· Air bubbles easily appear in the cell. 

· The indication is unstable. 

• How to keep : Clean the sensor with purified water (deionized water) and 

close the seansor cap. Purified water remaining in the cell causes no 

problems. 

• Replace both batteries simultaneously. 

• Exhausted batteries should not be thrown into a fire or recharge. Exhausted 

battery should not be placed within reach of children. If a battery is swallowed, call your doctor immediately. 

• When battery low, it might happen that you cannot turn on or off the power. 

Please change the batteries earlier. 

( How to Replace Batteries ) ~· - 0--P-ul_l_o_u_t -th_e_s_,en'-s-o_r_w_h_i-le-pr-e-ss_i_n_g_t-he ~-,·.. 

0 

catch located on the back of the body 

with the end of a ball point pen. 

8 Detach the battery from the body by 

raising 

ball point 

the 

pen 

battery 

as shown 

with the 

in the 

end 

figure. 

of a ~ 

@) Insert new batteries as described in 

"How to Set and Replace the Sensor " 

and Batteries': (Always use two CR2032 Lithium Batteries.)