AQUASOL AB-T-TDS Manuel d'instruction - Page 4

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3.2.4. ESC/PRN – Return Key / Print Key

(a) Under measurement mode, it is used as printing key and can be

printed directly through Bluetooth printer.

(b) Under non - measuring mode, it is used as a return key.

3.2.5. SET – Enter System Setting

(a) Under measurement mode, system setting interface can be entered

through the key.

3.2.6. UP - Big switch mode, upwards key

(a) In the measurement status, short press (no more than 1s) is used as a

large handover mode, which enables to switch back and forth between

several functions.

(b) Under system setting and manual temperature compensation mode, it

is used as the upwards key.

3.2.7. DOWN - Small switch mode, downward direction key

(a) In the measurement mode, the key is used as a switching mode

CONDUCTIVITY / RESISTIVITY / TDS / SAL.

(b) Under system setting and manual temperature compensation mode, it

is used as the downwards direction key.

3.2.8. OK – To Confirm key

3.3. Interface picture

Temperature electrode interface

1 -

2 –

No Connection

Conductivity Electrode interface

3 –

4 - USB interface

5 - Data line interface

6 - Power interface

4. Instrument Measurement :

4.1 Preparation Work

4.1.1. Press "ON/OFF" key to turn on, press "UP" key, and press the "COND"

button to select the conductivity measurement mode.

4.1.2. Insert the conductivity electrode and the temperature electrode into the

corresponding interface of the instrument.

4.2. Instrument Calibration：

4.2.1. Press "CAL" key to enter the calibration mode, displays "CAL" on the

screen, indicating to enter the calibration mode.

4.2.2.Wash the Conductivity & Temperature Electrode in pure water and dry

it, then immerse them into the 1413µs/cm calibration solution, shake

the electrodes and place them statically, when the measurement value

is stable and show "

",then press the "OK" key, display 1413 µs/cm,

confirm the calibration is correct then press the "OK" key to complete

the calibration, and save the data press "OK" key to exit the calibration

mode, The icon "L M" will appear on the screen.

4.2.3. This instrument also has a unique single point calibration function. It

should be calibrated according to the conductivity of the water sample

and the calibration solution are as close as possible. The commonly

used calibration solution is 1413 µs/cm, using the K=1 electrode, it can

be used in measurement range less than 100ms /cm. Other calibration

points are (L) 84 µs/cm, (M) 1413 µs/cm, (H) 12.88ms/cm or (H)

111.9 ms/cm.

4.3. Instrument Measurement

4.3.1. Clean and dry the conductivity electrode, put it in sample solution with

the temperature electrode, stir it and place stable, when the

measurement value is stable and LCD appears the icon "

read it out, which is the measurement value of the conductivity solution.

4.3.2. Short press "DOWN" key can simultaneously display resistivity values,

TDS values and salinity values corresponding to conductivity values.

(Standard Solution Method):

" then