Apera Instruments EC 8500 Manual Download Page 30

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Appendix III: Self-diagnosis information

Icons

Self-diagnosis information

Conductivity

Wrong pH buffer solution or the meter recognition of

calibration solution out of range

√

Press key when measuring value is not stable

during calibration.

√

During calibration, the measuring value is not stable for
≥3min.

√

pH electrode performance error

(zero potential >±60mV or slope < 75%

）

√

Enter in pre-set due calibration to remind due calibration

√

APERA INSTRUMENTS (Europe) GmbH

Wilhelm-Muthmann-Straße 15

42329 Wuppertal, Germany

Tel. +49 202 51988998

Email: [email protected]

Website: www.aperainst.de

Summary of Contents for EC 8500

Page 1: ...PC8500 Portable pH Conductivity Meter Manual PH 8500 Portable pH Meter EC 8500 Portable Cond Meter PC 8500 Portable pH Cond Meter APERA INSTRUMENTS Europe GmbH www aperainst de ...

Page 2: ...de information 6 2 Conductivity calibration consideration 6 3 Conductivity calibration 6 4 Relations between TDS salinity and conductivity 6 5 Customer defined calibration 6 6 Sample test 6 7 Conductivity electrode maintenance 7 Parameter setting 7 1 Main menu 7 2 Sub menu 7 3 Sub menu of pH parameter setting 7 4 Sub menu of conductivity parameter setting 7 5 Sub menu of basic parameter setting 8 ...

Page 3: ...ectrode together into the clip to measure simultaneously Meet GLP clock display manual storage and automatic timing storage USB port The meter s digital filter improves measurement speed and accuracy There is reading stability display The package includes portable case meter electrode standard solutions soaking solutions and all accessories convenient to use in field The meter is dust proof and wa...

Page 4: ... 9 mS cm TDS 0 100 g L Salinity 0 100 ppt EC8500 PC8500 Resolution 0 01 0 1 1μS cm 0 01 0 1mS cm Accuracy 1 0 F S 1 digit Temperature compensation 0 100 C manual or automatic Electrode constant 0 1 1 10cm 1 Temperature Measuring Range 10 110 C PH8500 EC8500 PC8500 Resolution 0 1 Accuracy 0 5 1 digit 2 2 Other specifications Data storage 500 groups Storage content Serial number date time measuring ...

Page 5: ...l number for storage and recall and prompts of special display mode 10 Storage and recall icons M Measurement to be stored icon RM Reading to be recalled icon 11 Temperature value and prompts of special display mode 12 Temperature compensation icons ATC automatic temperature compensation MTC manual temperature compensation 13 Calibration guide icon 14 USB icon when this icon appears the meter conn...

Page 6: ...ode press this key to turn on or turn off the backlight display Long press In the measurement mode press and hold this key for 2 seconds to turn off the meter Short press Select measurement parameter PH8500 pH meter EC8500 Conductivity meter PC8500 pH Conductivity meter Short press In the measurement mode press this key to enter in the calibration mode In the auto hold mode HOLD recall mode RM or ...

Page 7: ...ue In the measurement mode press this key to recall the last stored value In the recall mode RM press momentarily this key to change the storage serial number press and hold this key to change the number quickly In the parameter set up mode press this key to change the serial number of the main menu and the sub menu In the sub menu mode press this key to change parameters and setup 3 3 Meter Socke...

Page 8: ...ent 3 4 2 Automatic lock up display mode Select On from parameter P3 6 to turn on automatic lock up display function When the reading value stabilizes more than 10 seconds the meter locks the measuring value automatically and displays HOLD icon see Diagram 5 In the HOLD mode press to release lock up 3 5 Store Recall and Clear Readings 3 5 1 Manual storage When the measurement is stable short press...

Page 9: ...built in temperature sensor with automatic temperature compensation function Electrode housing is made of polycarbonate engineering plastics which is corrosion and impact resistant The BNC socket of electrode connects pH socket RCA socket connects temperature socket When dipping pH electrode in the solution please stir the solution briefly to eliminate any air bubbles and allow it to stay in the s...

Page 10: ...emperature differs greatly from the calibration solution temperature 4 2 4 Due calibration Preset calibration interval begin from the date of last calibration to remind due calibration in a preset period in parameter setting P1 4 clause 7 3 During due calibration Er5 icon appears on LCD see Diagram 9 The meter can not continue operation and Er5 icon disappears until the calibration is done or when...

Page 11: ...ion When the 1st point calibration is done meter goes to measurement mode under 1st point calibration mode Same procedure as 2nd point calibration and 3rd point calibration b During calibration process if a stable reading has not been reached no displays on LCD press key Er2 will displays on LCD See Chart 6 c In calibration mode press key to exit 4 4 Customer defined calibration take 1 60 pH and 6...

Page 12: ...it to stay in the sample solution until the stable value and icon appears on LCD get the reading which is pH value of sample solution please refer to Diagram 11 for calibration and measurement process of pH meter Diagram 11 Calibration and measurement process of pH meter 4 5 2 Self diagnosis information During the process of calibration and measurement the meter has self diagnosis functions indica...

Page 13: ...theory value zero electric potential of pH is 7 00 the slope is 100 Some functions restore to the original value refer to Appendix I When calibration or measurement fails please restore the meter to factory default setting and then perform re calibration or measurement Please note once set the factory default all the data deleted will irretrievable 4 6 pH Electrode Maintenance 4 6 1 Daily maintena...

Page 14: ...an contaminated glass bulb and junction Contamination Cleaning Solutions Inorganic metal oxide Dilute acid less than 1mol L Organic lipid Dilute detergent weak alkaline Resin macromolecule Dilute alcohol acetone ether Proteinic haematocyte sediment Acidic enzymatic solution saccharated yeast tablets Paints Dilute bleacher peroxide Notes The electrode housing is polycarbonate When using cleaning so...

Page 15: ...les This will improve response time and stability 6 1 2 Conductivity electrode constant The meter matches conductivity electrodes of three constants K 0 1 K 1 0 and K 10 0 Please refer to chart 8 for measuring range Set constant per parameter P2 1 and refer to clause 7 4 Chart 8 Electrode constant and measuring range Range 20 μS cm 0 5μS cm 100mS cm 100mS cm Conductivity electrode constant K 0 1 c...

Page 16: ...ting is 2 00 C However the conductivity temperature coefficient is different for solutions of a different variety and concentration Please refer to chart 10 and the data collected during testing Set per parameter P2 4 and see clause 7 4 Notes When the coefficient for the temperature compensation is set to 0 00 no compensation the measurement value will be based on the current temperature Chart 10 ...

Page 17: ...ration solution at the bottom right When the meter locks 1413 μS stable icon displays on LCD Press key to finish calibration meter goes into measurement mode LCD shows icon at the bottom left See Diagram 13 6 3 3 For multi point calibration please repeat clause 6 3 1 6 3 3 until all the calibrations are done The meter can repeat calibration in the same calibration solution to ensure better accurac...

Page 18: ...ductivity electrode without temperature sensor manual temperature compensation MTC when press key the temperature value flashes Press key or key to adjust the temperature value and press key then the conductivity value flashes 6 5 3 Only one point calibration for customer defined calibration The value set in Customer defined is at a fixed temperature There is no regulation of temperature coefficie...

Page 19: ...e calibration or measurement Please note once factory default setting is set all the data deleted will not irretrievable 6 7 Conductivity electrode maintenance 6 7 1 Always keep the conductivity electrode clean Before taking a measurement rinse the electrode in pure water and then rinse it in the sample solution When submerging the electrode in solution stir the solution briefly to eliminate air b...

Page 20: ...meter setting P1 1 Select pH standard solution P1 2 Select resolution P1 3 Set stability criteria P1 4 Set due calibration P1 5 Check calibration date P1 6 Restore to factory default setting P2 1 Select electrode constant P2 2 Select conductivity standard solution P2 3 Select standard temp P2 4 Adjust temperature compensation factor P2 5 Adjust TDS coefficient P2 6 Set due calibration P2 7 Check c...

Page 21: ... 4 mode or press key to return to the measurement mode P1 4 Set due calibration No H00 D00 1 Press key no blinks then press key to select no H00 d00 Press to confirm 2 When H blinks press key 00 blinks Press key to adjust hours 0 99 hours press key to confirm When D blinks press key 00 blinks Press key to adjust days 0 99 days press key to confirm 3 After confirm parameter press key to enter in P1...

Page 22: ...y to confirm 2 After confirm parameter press key to enter in P2 4 mode or press key to return to the measurement mode P2 4 Adjust temperature compensation factor 0 00 9 99 1 Press key 2 00 blinks press key or key to adjust temperature compensation factor 0 00 9 99 press key to confirm 2 After confirm the parameter press key to enter in P2 5 mode or press key to return to the measurement mode P2 5 ...

Page 23: ... parameter press key to enter in P3 2 mode or press key to return to the measurement mode P3 2 Select backlight timing 1 2 3 On 1 When press key 1 blinks then press key to select 1 2 3 On When the parameter blinks press key to confirm Select On to turn on the back light the time unit is minute 2 After confirm the parameter press key to enter in P3 3 mode or press key to return to the measurement m...

Page 24: ...rameter press key to enter in mode P3 7 or press key to return to the measurement mode P3 7 Automatic power off setup 10 20 30 On 1 Press key On blinks press key to select 10 20 30 On press key to confirm On turn off automatic power off Time unit is minutes 2 After confirm the parameter press key to enter P3 8 or press to return to the measurement mode P3 8 Set automatic lock up function Off On 1 ...

Page 25: ... XP operation system PC IBM compatible with XT and CD ROM driver USB communication port 8 2 Software Interface Software interface see Diagram 15 Meter serial number Stored value Keys Clear press this key to clear the data Download press this key to download the data from the meter to the computer Export press this key to export the stored value to Microsoft Excel file Exit press this key PC Link p...

Page 26: ... recognize the software automatically Besides this software only recognizes 1 16 port numbers For other port numbers please set in device manager of the computer 8 5 Operation Software 8 5 1 Upload the stored value Press Download key all the data stored in the meter is downloaded to the computer pH mV COND and TDS are sorted in the program 8 5 2 Real time storage During operation press key to stor...

Page 27: ... 10 Warranty We warrant this instrument to be free from defects in material and workmanship and agrees to repair or replace free of charge at option of APERA INSTRUMENTS Europe GmbH any malfunctioned or damaged product attributable to responsibility of APERA INSTRUMENTS Europe GmbH for a period of three years from the delivery a six month limited warranty applies to probes This warranty does not a...

Page 28: ...y P2 1 Select electrode constant 1 0 10 0 0 1 1 0 P2 2 Select conductivity standard solution Standard CUS Standard P2 3 Select reference temperature 15 30 25 P2 4 Adjust temperature compensation coefficient 0 00 9 99 2 00 P2 5 Adjust TDS factor 0 40 1 00 0 71 P2 6 Set due calibration No H00 D00 No P2 7 Check the date of the last calibration P2 8 Restore factory default setting No Yes No P3 0 Basic...

Page 29: ...ry default setting P2 0 Conductivity P2 1 Cell Constant Cell P2 2 Calibration solution Calibration solution P2 3 Reference temperature Reference temperature P2 4 Temperature compensation coefficient Temperature compensation coefficient P2 5 Total Dissolved Solid TDS P2 6 Due Calibration Remind due calibration P2 7 P2 8 Factory default setting Factory default setting P3 0 Basic parameters P3 1 P3 2...

Page 30: ...y when measuring value is not stable during calibration During calibration the measuring value is not stable for 3min pH electrode performance error zero potential 60mV or slope 75 Enter in pre set due calibration to remind due calibration APERA INSTRUMENTS Europe GmbH Wilhelm Muthmann Straße 15 42329 Wuppertal Germany Tel 49 202 51988998 Email info aperainst de Website www aperainst de ...

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