Apera Instruments Salt20 User manual

Salt20 Pocket Salinity Tester

Instruction Manual

APERA INSTRUMENTS (Europe) GmbH

www.aperainst.de

1. Battery Installation

Please install batteries according to the following steps. Please note polarity:

“+” (anode) is upward; “-” (cathode) is downward

Note: This salinity meter measures practical salinity converted from electrical

conductivity (NaCl Concentration). It does not measure absolute salinity.

2. Keypad Functions

■Short press------- < 2 seconds

■Long press-------- > 2 seconds

1. Short press to turn on, long press to turn off;

2. When turned off, long press to enter setup;

3. In mode setting, short press to change

parameter;

1. When turned on, long press to enter

calibration mode.

2. In calibration mode, short press to confirm

calibration;

3. In mode setting, short press to confirm

parameter selection.

Diagram - 1

3. Complete Kit

4. Calibration

4.1 Rinse the probe in distilled water and dry it. Short press to turn on the tester.

4.2 Long press to enter calibration mode; Short press to exit.

4.3 Dip the probe into the calibration solution. Stir gently, leave it to stand, LCD

displays , short press to complete 1-point calibration.

The tester returns to measuring mode, and calibration icon appears at the button

left of LCD.

5. Salinity Measurement

5.1 Short press to turn on tester. Rinse probe in distilled water and dry it.

5.2 Stir probe in the sample solution gently, leave it to stand. Get readings after the

smile icon comes up and stays.

6. Notes

6.1 The tester has self-diagnosis functions:

Diagram - 2

Symbol

Self-Diagnosis information

How to fix

Wrong calibration solution,

which exceeds the recognizable

range of the meter.

1. Check if calibration solution is

correct

2. Check if probe isdamaged.

is pushed before

measurement is stable (

comes up)

Wait for the smile icon to stay,

and then short press

6.2 The tester has already been calibrated after manufacture. Usually users can use the

tester right away, or test it in the calibration solutions to test its accuracy. When error is

large, calibrate it before using.

7. Parameter Setting

7.1 Parameter setting reference chart:

Symbol

Parameter Setting content

Code

Factory Default

Select salinity unit

ppt –g/l

ppt

Select Temperature Unit

˚C – ˚F

˚C

Restore to factory default

No –Yes

7.2 How to setup parameters:

When turned off, long press to enter setup →short press to switch P1-P2-

P3→Short press , parameter flickering→short press to choose, short press

to confirm parameter selection→Long press to switch off.

7.3 Parameter setting notes

a) Select salinity unit(P1):

Optional units: ppt –g/l, factory default is ppt.

b) P2-Select temperature unit (°C-°F):

In P1 mode, press to enter P2, press , °C or °F flickering, press to

choose °C-°F, press to confirm parameter selection. Long press to return to

measurement mode.

c) Restore to factory default:

Select Yes to restore the calibration to the theoretical values and parameter

setting to original values. When meter’s calibration or measurement performs

abnormally, this function can be adopted so the meter goes back to factory

default setting and then users can conduct calibration or take measurements

again.

8. Technical Specifications

Salinity

Range

0 –10.0 ppt

Resolution

0.1 ppt

Accuracy

±1% F.S

Calibration points

1 point auto calibration

Automatic Temp. Compensation

0-50˚C

Temp.

Range

0-50˚C

Resolution

0.1˚C

Accuracy

±0.5˚C

9. Other Functions & Parameters

Indication of calibration

points

Auto Power-off

Power-off in 8

minutes if no

operation

Indication of stable

measurements

Waterproof level

IP67, floats on

water

Self-Diagnosis

information

Er1, Er2

Power Supply

AAA batteries*4

Low battery reminder

Flashes to

remind to replace

batteries

Battery Life

1000 hours

Dimensions/Weight

Instrument: 40*31*178mm/107g;

Carrying case: 190*165*140mm/438g

10. Warranty

We warrant this instrument to be free from defects in material and workmanship and

agrees to repair or replace freeof charge, at optionof APERA INSTRUMENTS (Europe)

GmbH, any malfunctioned or damaged product attributable to responsibility of APERA

INSTRUMENTS (Europe) GmbH for a period of two years from the delivery (a six-

month limited warranty applies to probes). This warranty does not apply to defects

resulting from actions such as misuse (violation of the instructions in this manual or

operations in the manner not specified in this manual), improper maintenance, and

unauthorized repairs. Warranty period is the time limit to provide free service for the

products purchased by customers, not the service life of the tester or probe.

Apera Instruments reserves the right to update the information in this manual without giving notice in

advance.

APERA INSTRUMENTS (Europe) GmbH

Wilhelm-Muthmann-Straße 18

42329 Wuppertal, Germany

Contact: info@aperainst.de

Website: www.aperainst.de

Tel. +49 202 51988998

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