background image

 

 

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 adopts 1413 µS and 12.88 mS standard calibration solutions. Users 

can use 1-2 point calibrations as needed. For most circumstances, calibrating in 

1413 µS to complete 1

st

 point calibration will meet testing requirements. 

6.2 The tester has self-diagnosis functions: 

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 is damaged. 

 

 

 

       is pushed before 
measurement is stable 
(      comes up) 

Wait  for  the  smile  icon  to  stay,  
and then short press      

 

6.3 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 Items 

Code 

Factory Default 

P1 

TDS Factor 

0.40 to 1.00 

0.71 

P2 

Select Temperature Unit 

 – 

 

 

P3 

Restore to factory default 

No – Yes 

No 

 

 

 

 

Summary of Contents for TDS1

Page 1: ...TDS1 Pocket TDS Tester Instruction Manual APERA INSTRUMENTS Europe GmbH www aperainst de ...

Page 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 ...

Page 3: ...am 3 short press to complete 1 point calibration The tester returns to measuring mode and calibration icon appears at the button left of LCD 4 4 Rinse probe in distilled water and dry it Follow the steps in 4 2 4 3 to complete 2nd point calibration in 12 88 mS calibration solution tester returns to measuring mode calibration icons display on bottom left of LCD 5 TDS Measurement 5 1 Short press to ...

Page 4: ...ration solution which exceeds the recognizable range of the meter 1 Check if calibration solution is correct 2 Check if probe is damaged is pushed before measurement is stable comes up Wait for the smile icon to stay and then short press 6 3 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 accur...

Page 5: ...TDS Factor 0 100 μS cm 0 60 100 1000 μS cm 0 71 1 10 mS cm 0 81 10 100 mS cm 0 94 b P2 Select temperature unit In P1 mode press to enter P2 press or flickering press to choose press to confirm parameter selection Long press to return to measurement mode c P3 Restore to factory default No Yes In P2 mode press to enter P3 press No flickering press to choose No Yes press to confirm parameter selectio...

Page 6: ...acy 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...

Page 7: ...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 informatio...

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