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BRIEF INTRODUCTION 

Thank you for purchasing Apera Instruments EC400S Portable Conductivity Meters. Before using the product, please 

read this manual carefully to help you properly use and maintain the product. For technical support, please contact 

us at 

[email protected]

 or +49 202 51988998 

Apera Instruments reserves the right to update the content of this manual without giving prior notices. 

 

 

Measuring Parameters 

Measuring Parameters 

PH400S 

EC400S 

PC400S 

pH/mV 

√ 

 

√ 

Conductivity/TDS//Salinity/Resistivity 

 

√ 

√ 

Temperature 

√ 

√ 

√ 

 

 

Features and Functions 

 

The  built-in  microprocessor  chip  enables  advanced  functions  such  as  auto  calibration,  auto  temperature 

compensation, auto electrode recognition, parameter setting, self-diagnosis, calibration reminder, calibration 

time check, auto power-off, low-battery reminder, etc. 

 

GLP  data  management,  real-time  clock  display.  Manual  or  Auto  timing  data  storage.  USB  data 

communication. 

 

The  meter  adopts  advanced  digital  processing  technology,  intelligently  improves  the  response  time  and 

accuracy of the measurements. Stable reading and auto lock display mode are available for choice. 

 

Comes  with  a  carrying  case,  which  includes  the  meter,  the  electrode(s),  calibration  solutions,  and  other 

accessories, convenient for in-field use. 

 

Meets IP57 Waterproof and dustproof rating, ideal for use under harsh environment. 

 

 

Features in pH Measurement 

 

1 to 5 points auto calibration with calibration guide and auto-check function. 

 

Automatic recognition of calibration solutions. Two series of standard solutions for choice: USA and NIST 

 

 

Features in Conductivity Measurement 

 

1 to 4 points auto calibration with calibration guide and auto-check function. 

 

Single-tap switch among conductivity, TDS, salinity, and resistivity. 

 

Automatic recognition of conductivity calibration solutions. 

Содержание 400S Series

Страница 1: ...EC400S Portable Conductivity Meter Instruction Manual PH400S Portable pH Meter EC400S Portable Conductivity Meter PC400S Portable pH Conductivity Meter APERA INSTRUMENTS Europe GmbH www aperainst de v...

Страница 2: ...ment 13 6 Conductivity Measurement 14 Information regarding the Conductivity Electrode 14 Information regarding Conductivity Calibration 15 Conductivity Calibration 16 TDS Salinity Resistivity Conduct...

Страница 3: ...reminder etc GLP data management real time clock display Manual or Auto timing data storage USB data communication The meter adopts advanced digital processing technology intelligently improves the re...

Страница 4: ...ty 0 to 200 mS cm including 5 ranges 0 00 to 19 99 S cm 20 0 to 199 9 S cm 200 to 1999 S cm 2 00 to 19 99 mS cm 20 0 to 199 9 mS cm TDS 0 to 100 g l including 5 ranges 0 00 to 9 99 mg l 10 0 to 99 9 m...

Страница 5: ...nd Dustproof Dimensions and Weight PH400S EC400S Meter 86x196x33 mm 335 g With case 360x275x80 mm 1 6 kg PC400S Meter 480x360x95 mm 335 g With case 480x360x95 mm 4 2 kg 3 INSTRUMENT DESCRIPTION LCD Di...

Страница 6: ...s 3 2 2 Power On Short press to power on LCD displays the measuring mode used last time Backlight turned on for 1 minute 3 2 3 Power Off The meter can only be turned off in measuring mode by short pr...

Страница 7: ...d conductivity electrode can be connected When connected the meter will automatically switch to the correspondent measurement mode Display Mode 3 4 1 Stable Reading Display Mode When the measuring val...

Страница 8: ...ng the pH Electrode The instrument is equipped with a 201T S 3 in 1 Combination pH Electrode Its built in temperature sensor allows for auto temperature compensation The electrode s housing adopts PC...

Страница 9: ...testing strong acid or strong base solutions 4 2 3 How often to calibrate The frequency that you need to calibrate your meter depends on the tested samples condition of electrodes and the requirement...

Страница 10: ...lution Stir the solution gently and let stand still in the buffer solution until a stable reading is reached The meter s display will show the recognition process of calibration buffer solution at the...

Страница 11: ...suring value being unstable for over 3 minutes 1 Check whether there are bubbles in glass bulb 2 Replace with a new pH electrode pH electrode zero electric potential out of range 60mV or 60mV 1 Check...

Страница 12: ...e water The electrode should not be soaked in pure or distilled water protein solution or acid fluoride solution for long periods of time In addition do not soak the electrode in organic lipids 4 5 2...

Страница 13: ...de for your meter in order to accurately test purified waters 2 The electrode housing is polycarbonate When using cleaning solutions take cautions on carbon tetrachloride trichlorethylene tetrahydrofu...

Страница 14: ...which is corrosion resistant and impact resistant When submerge the conductivity electrode in solution stir the solution briefly to eliminate the air bubbles and improve response and stability 6 1 2...

Страница 15: ...to the sample solution to perform 1 point or 2 point calibration 6 2 3 Single point and multi point calibration If 1 point calibration is conducted after 3 point or 4 point calibration being done the...

Страница 16: ...till be operated It is just reminding you to do calibration in order to ensure the accuracy After calibration the Er6 icon will disappear To make it disappear users can also choose No in P2 3 in param...

Страница 17: ...0 100 mS cm 0 94 Sample test 1 Rinse conductivity electrode in distilled or pure water dry it and submerge it in the sample solution Stir the solution briefly and allow it to stay in the sample soluti...

Страница 18: ...n for 5 10 minutes or to soak it in tap water for 1 to 2 hours Rinse the electrode in pure water after measurement 6 6 2 The sensing rod of Model 2301T S conductivity electrode is coated with platinum...

Страница 19: ...Select electrode s constant P2 2 Set up calibration reminder P2 3 Check calibration date P2 4 Select reference temp P2 5 Adjust temp coefficient P2 6 Adjust TDS factor P2 7 Restore to factory default...

Страница 20: ...Check Calibration Time 1 The data and time of last calibration displayed on the left image is 18 08 06 08 2016 2 Press to enter P1 4 or press to return to measurement mode P1 4 Select pH calibration...

Страница 21: ...P2 5 or press to return to measurement mode P2 5 Adjust temp compensation coefficient 0 00 9 99 1 Press 2 00 flashes press or to adjust from 0 00 9 99 press to confirm 2 Press to enter P2 6 or press t...

Страница 22: ...n time unit is minute 2 Press to enter P4 5 or press to return to measurement mode P4 5 Clear storage No Yes 1 Press No flashes press to choose No Yes press to confirm No not to clear data storage Yes...

Страница 23: ...Port is the number for the software to connect with the computer Every computer s COM port is different In Figure 13 the COM port is COM4 Open Close Click it to turn on off the program When turned on...

Страница 24: ...rage a When the program is running and meter is connected to computer press on the meter or set up auto timing storage to upload all the measuring data to the software The data will not be stored in t...

Страница 25: ...rol 11 APPENDIX 1 TABLE OF PARAMETER SETTING AND FACTORY DEFAULT SETTING Mode Symbol Parameter Abbreviatio n Content Factory Default P1 0 pH P1 1 Select Buffer Series USA NIST P1 2 Set calibration rem...

Страница 26: ...e P1 5 Factory default setting P2 0 Conductivity P2 1 Cell P2 2 Due Calibration P2 3 P2 4 Reference temperature P2 5 Temperature compensation coefficient P2 6 TDS Factor P2 7 Factory default setting P...

Страница 27: ...value is not stable during calibration During calibration the measuring value is not stable for 3 min pH electrode zero electric potential out of range 60mV or 60mV pH electrode slope out of range 85...

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