Kensington KS-SAL-20 User manual

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
OVERVIEW
Below are the steps you need to follow to begin using your Kensington KS-SAL-20 pocket salinity tester. This manual
will cover how insert the batteries, using the function keys, making measurements, calibration and sensor replacement.
PACKAGE CONTENTS
1. Conductivity calibration solutions (1413 µS/cm, 12.88m µS/cm, 111.8 S/cm,)
2. AAA batteries
3. Carrying case
INSERTING THE BATTERIES
1. Your Kensington Pocket KS-SAL-20 pocket salinity tester uses two AAA batteries.
2. Remove the button cap found on the bottom of the tester as shown in the above image.
3. Place the battery into its designated slot. Take note of the proper position of the battery to ensure the polarities
placed correctly.
4. Replace the battery cap.
KEYPAD INDEX
Key
Function
1. Serves as the power button of the tester
2. Initiates Data Hold. Press once to hold the current reading, press again to resume making
measurements.
3. Exit button during calibration
1. Press once to conduct calibration of the instrument
2. Press and hold to enter setup menu
3. In calibration mode, press to set calibration values.
4. In setup mode, press to select default option

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
1. Press to confirm calibration or chosen option
2. Toggles between conductivity, TDS and salinity measurement modes.
DISPLAY
The KS-SAL-20 is built with a clear LCD display that shows the measured value, various mode indicators and units.
Below is a summary to describe the meaning behind each notification on the display.
Indicator
Description
MEAS
Indicates tester is in the measurement mode
CAL
Indicates tester is in calibration mode
SETUP
Indicates tester is in SETUP mode
HOLD
Indicates the HOLD function is active and the current displayed value is on hold.
ATC
Indicates temperature compensation is enabled
SETUP MENU
The KS-SAL-20 contains integrated setup menu that allows you to customize your tester’s features to fit your
measurement requirements.
Parameter
Description
Options
Description
CAL
Calibration Points
1 (Default)
1 point calibration
2
2 points calibration
3
3 points calibration
UNIT
Temperature Unit
°C (Default)
Celsius
°F
Fahrenheit
°C
Temperature calibration
CAL
Temperature calibration
mode
HOLD
Auto-Hold
YES
Automatically freezes
stable readings
NO (Default)
Disable
OFF
Auto-off
YES (Default)
Automatically turns off
tester after 8 seconds of
idle
NO
Disable
RST
Reset
YES
Restores factory settings
NO (Default)
Disable

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
SETTING OF DEFULAT PARAMETERS
1. Press the CAL button to enter setup menu. The first display should be the default number of calibration points.
2. Press the CAL key again to change the default calibration point, selecting 1, 2 or 3 points. Press the ENTER key
to confirm.
3. The tester will now automatically display the temperature unit selection mode. The display should show °C/UNIT
6. Press CAL to the select the chosen temperature unit (°C or °F). Press ENTER to confirm.
7. The next display will show the temperature calibration mode. The display should show ‘°C/CAL’.
8. If you do not wish to conduct temperature calibration, press ENTER to proceed with the next option. If temperature
calibration is needed, press CAL key to begin calibration. The display should show the current temperature reading.
8. Press the CAL key to set the desired temperature value. Press ENTER to confirm.

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
9. The next setting is for the HOLD function. The display should show YES/HOLD indicating the auto hold function is
enabled.
10. If the automatic hold function is enabled, the tester will automatically freeze the stable measured value. If this
function is disabled, the user will have to press the HOLD key to enable the function when needed.
11. Press CAL key to enable or disable the HOLD function and press ENTER to confirm.
12. The next display should show ‘YES/OFF’ to show that auto off function is enabled.
13. Press the CAL key to disable this feature and press ENTER to confirm.
14. The final setting is for the Reset function. The display should show NO/RST
15. Press the CAL key to enable or disable the function and press ENTER to confirm. Remember that enabling this
functions will restore the tester to factory default setting and erase all selected parameters.
16. The tester will automatically go to measurement mode.
CONDUCTIVITY CALIBRATION
It is recommended that the KS-SAL-20 should be calibrated regularly to ensure accurate measurements. The KS-SAL-
20 allows up to 3 points calibration and it is recommended to use 3 points calibration before measurement.
The tester is programmed to automatically detect the needed standard solutions for calibration and will prompt the user
during the calibration process.

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
Below is a chart showing acceptable conductivity standard solutions during calibration.
Measuring range
Calibration solution range
Default
200~2000 µS/cm
700~1700µS/cm
1413 µS/cm
2~20 mS/cm
7~17 mS/cm
12.88 mS/cm
20~200 mS/cm
70~170 mS/cm
111.8 mS/cm
Single Point Calibration
1.1 Make sure to choose the 1 point calibration and in the settings.
1.2 Remove the protective cap and rinse the sensor with distilled water and a small amount of calibration solution.
1.3 Press the CAL button. The display should show CAL and the calibration point.
1.4 Dip the conductivity electrode into the prepared buffer solution (1413 µS/cm). The end of the sensor must be
completely submerged. Stir the tester.
1.5 Press the ENTER to confirm. The tester should recognize the value of the used solution and the displayed value
should begin to flash.
1.6 If the displayed value is incorrect, press the CAL button to set each digit and press
ENTER to confirm each change. The selected digit will flash to show which digit is being changed.
1.7 Once the value is correct, press ENTER to start the calibration. Wait for the meter to stabilize. The display will
show ‘END’ and the tester will go back to measurement mode, ending the calibration process.
Two points Calibration
2.1 Select two points calibration in the settings.
2.2 Do steps 1.2 to 1.7. After the first point of calibration is completed, the display will show CAL2 to continue with
the calibration.

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
2.3 Rinse the electrode with distilled water and with a small amount of the next calibration solution.
2.4 Dip the electrode into the 12.88 mS/cm buffer solutions Stir the tester gently and make sure the electrode is
completely submerged into the solution. The value of the calibration solution should appear.
2.5 Press ENTER to confirm. The displayed value should begin flashing. Consult step 1.6 if the displayed value does
not match the value of the calibration solution. Wait for the measured value to stabilize.
2.6 Press ENTER to confirm again to start the calibration. Wait for the reading to stabilize until the display shows ‘END’
and completes the calibration process.
Three points Calibration
3.1 Make sure to select three points calibration in the settings
3.2 Do steps 1.2 to 1.5 and then steps 2.3 to 2.6
3.3 When the second calibration point is completed, the display will show ‘CAL3” as the tester prompts you
to continue with the third point of calibration.
3.4 Rinse the electrode with distilled water and small amount of the buffer solution.
3.5 For the third point of calibration 111.8 mS/cm should be used.
3.6 Press ENTER to confirm. The value displayed should be similar to the value of the used buffer solution.
3.7 Follow step 1.6 to modify the value as needed.
3.8 PRESS ENTER to confirm. Wait for the measurement to stabilized until the display shows ‘END’
and completes the calibration process.
SWITCHING BETWEEN MEASUREMENT MODES
1. Press MEAS to initiate measurement mode. The default measure is for salinity. To change to another
measurement mode, press ENTER to switch to conductivity mode.

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
2. Press ENTER again to return to salinity mode.
MAKING MEASUREMENTS
1. Press the MEAS/HOLD button to turn on the meter. Press ENTER to select the needed measurement mode.
2. Remove the protective cap of the salinity sensor
3. Rinse the meter with distilled water.
4. Dip the instrument into the tested sample or solution and stir gently.
5. Wait for the measurement to stabilize and record the measurement.
HOLD FUNCTION
1. Pressing the HOLD key while in measurement mode will activate the hold function. The HOLD indicator will appear
on the display and further measurement readings will not be possible.
2. Press the HOLD key again to disable the hold function.
ELECTRODE SENSOR MAINTENANCE
1. It is recommended to keep the sensitive membrane of the sensor wet. This is accomplished by periodically dipping
the sensor in distilled water or by using an electrode storage solution when the tester is not in use.
2. If the instrument will be kept in storage for a long time, place the sensor in an electrode storage solution.
3. Make sure to wash the sensor with distilled water before and after use.
4. Do not reuse prepared buffer solutions.
ELECTRODE REPLACEMENT
One of the advantages of using the Kensington KS-EC-10M-E is that the sensor can be replaced instead of buying a
new tester when the sensor fails during calibration. Removing and installing the sensor is easy and convenient and
also increases the utility of the instrument as additional sensors can be purchased for different applications. To replace
the sensor:
1. Twist the electrode collar counter-clockwise and pull the electrode away from the instrument

User Manual
KS-SAL-20 |Pocket
Salinity Tester
Kensington Scientific
22a Cavan Rd, Dry Creek
South Australia, 5094
[e-mail]
www.kensingtonscientific.com.au
2. Align the new electrode into the same spot, push, and turn clockwise to keep it secure.
SPECIFICATIONS
Salinity
Range
0.00~80.00ppt
Accuracy
± 1% F.S
Resolution
0.01 ppt
Calibration points
1 to 3 points
Calibration solutions
10µS/cm, 84µS/cm, 1413µS/cm, 12.88mS/cm
Conductivity
Range
100~2000µS/cm, 2.00~20.00, 20.00~200.0mS/cm
Accuracy
± 1% F.S
Resolution
0.01, 0.1, 1
Calibration points
1 to 3 points
Calibration solutions
10µS/cm, 84µS/cm, 1413µS/cm, 12.88mS/cm
Temperature
Range
0~60°C, 32~140°F
Accuracy
± 1°C
Resolution
0.1°C, 0.1°F
Calibration point
1
Calibration range
Measured value ± 10°C
Others
Temperature compensation
0~60°C, 32~140°F
Temperature coefficient
2%/°C
Cell Constant
K=1
Normalization temperature
25°C
Data hold
Manual or automatic
Power off
Manual or automatic
Power Requirements
2× 1.5V "AAA" Batteries
Dimensions
185(L)× 40(Dia.)mm