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Содержание pH 70 Plus

Страница 1: ...1 EN ...

Страница 2: ...n consideration Standard buffer solution 9 Three point calibration 9 Calibration Intervals 9 Due calibration 10 Check calibration date 10 pH Meter Calibration 10 Customer calibration 11 Measurement 12 Factory default setting 12 Self diagnosis information 13 pH electrode maintenance 13 Daily maintenance 13 Calibration buffer solution 13 Protect glass bulb 13 Regenerate glass bulb 13 mV measurement ...

Страница 3: ...nce 18 Relations between TDS Salinity and conductivity 18 Datalogger functions pH70 DHS COND70 PC70 DHS 19 Manual storage 19 Automatic timing storage 19 Recall stored value 19 Clear stored value 19 Setup Menu 20 Main menu 20 Submenu 20 Connection to PC and DataLink70 v1 4 software pH70 DHS COND70 PC70 DHS 22 USB connection 22 Software interface 22 Appendix I Parameter setting Factory default setti...

Страница 4: ...tage display The meter s digital filter improves measurement speed and accuracy There is reading stability display The package includes portable case meter electrode standard solutions and all accessories convenient to use in field The meter is dust proof and water proof meeting the IP57 rating Temperature calibration function Selection of parameters to be display only for PC70 DHS Meet GLP clock ...

Страница 5: ... four ranges 0 199 9 μS cm 200 1999 μS cm 2 00 19 99 mS cm 20 0 199 9 mS cm C0ND 70 PC 70 Resolution 0 01 0 1 1μS cm 0 01 0 1 mS cm Accuracy 2 0 FS Temperature compensation 0 100 manual or automatic Electrode constant 0 1 1 10 cm 1 Multi point calibration 1 4 point Standard solution 84 μS cm 1413 μS cm 12 88 111 9 mS cm 1 customer value TDS Range 0 100 g L Resolution 1 f s Salinity Range 0 50 g L ...

Страница 6: ...ons 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 range icon 14 USB icon when this icon appears the meter connects the computer 15 Stability icon 16 Battery life Keypad Functions Momentary press 1 5 sec...

Страница 7: ...n the calibration mode press this key to confirm calibration In the parameter set up mode press this key to select programs Long press In the mode of manual temperature compensation MTC when press and hold these keys the temperature value flashes then press this keys to change the temperature value and press to confirm Momentary press In the recall mode RM press momentarily this kesy to change the...

Страница 8: ...ibrate the XS DHS electrode in laboratory in ideal conditions using a XS DHS meter Calibration data like date slope model and batch number are memorized inside the electrode Moving this electrode on another XS meter DHS compatible the electrode is ready for high quality measurement extremely safety and without a new calibration Simply useful XS Meters DHS compatible recognize automatically If a XS...

Страница 9: ...ion The instrument can perform 1 3 point calibration The first point of calibration must be 7 00 pH or 6 86 pH standard solution then select other standard solution to perform the second and the third point calibration the meter is able to recognize the buffer solutions in analysis During the calibration process display get blue color and show the slope of acidity range and alkalinity range respec...

Страница 10: ...er solution to make the 1st point calibration Rinse pH electrode in pure water allow it to dry and submerge it in pH 7 00 buffer solution Stir the solution gently and leave it in the buffer solution until a stable reading is reached The meter s display will show scanning and locking process of calibration buffer solution at the bottom right of LCD Er 2 displays if press key before the value is sta...

Страница 11: ...d For automatic temperature compensation ATC the temperature value does not blink When press key the main value blinks Press and keys to adjust the main value to 1 60 then press key to calibrate the meter After calibration is done LCD at the top right shows blinking CAL2 icon indicating the meter enters into the 2nd point customer defined calibration Note For manual temperature compensation MTC wh...

Страница 12: ... slope is 100 Some functions restore to the original value refer to appendix 1 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 not be retrievable User s pH buffer Icons show on the display 6 5 7 5 6 5 7 5 Press to turn on the meter Press key to...

Страница 13: ...ing a measurement Insert the electrode and tighten the capsule after measurements to prevent the solution from leaking If the soak solution is turbid or moldy replace the solution The electrode should not be soaked in pure water protein solution or acid fluoride solution for long periods of time In addition do not soak the electrode in organic silicon lipids For best accuracy always keep the meter...

Страница 14: ...ode has been used over long period of time the platinum surface will get polluted which causes inaccurate measurement and slow response Please refer to the following methods to clean and activate ORP electrode For inorganic pollutant submerge the electrode in 0 1mol L dilute hydrochloric acid for 30 minutes then wash it in pure water then submerge it in the soaking solution for 6 hours For organic...

Страница 15: ...lt setting perform 3 point or 4 point calibration Choose closer standard solution to the sample solution to perform 1 point or 2 point calibration For example 1413 μS cm standard solution is suited for range 0 2 000 μS cm 1 point and multi point calibration For 1 point calibration after 3 point or 4 point calibration the previous calibration value in the same range will be replaced meanwhile the m...

Страница 16: ...r when select No per parameter P2 3 Check the calibration date Check the last calibration date to see whether a new calibration is needed per parameter P2 4 Conductivity Calibration example of calibration at 1413μS cm Rinse conductivity electrodes in pure water allow it to dry wash with a little of standard solution and submerge it in standard solution Stir the solution briefly and allow it to sta...

Страница 17: ...is no temperature sensor and manual temperature compensation MTC is adopted the temperature value blinks when press key press and key to adjust the temperature value and when press key conductivity value blinks Only 1 point calibration for customer defined calibration The value set in customer defined is at a fixed temperature There is no regulations of temperature coefficient and reference temper...

Страница 18: ...store to the original value refer to appendix 1 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 not be retrievable Conductivity electrode maintenance Always keep the conductivity electrode clean Before taking a measurement rinse the electrode i...

Страница 19: ...nto the timing storage mode Press momentarily key to start the data automatic storage flashes on the display To stop the recording press momentarily key icon stops flashing and the meter stops automatic storage In automatic storage mode manual storage does not work Set time 00 00 per parameter P6 3 to exit from the automatic storage mode Recall stored value In the measurement mode press key to rec...

Страница 20: ...n submenu P1 1 of pH parameter setting then press and keys to switch among submenu P1 1 P1 2 P1 3 P1 4 P1 5 P1 6 P1 7 In P2 0 mode press key to enter in submenu P2 1 of conductivity parameter setting then press and keys to switch among submenu P2 1 P2 2 P2 3 P2 4 P2 5 P2 6 P2 8 P2 9 In P3 0 mode press key to enter in submenu P3 1 to adjust TDS factor In P6 0 mode press key to enter in submenu P6 1...

Страница 21: ...P2 5 Select reference temp P2 6 Adjust temperature compensation coefficient P2 8 Restore to factory setup P2 9 Temperature calibration P6 1 Select temperature unit P6 2 Select backlight time P6 3 Adjust timing storage time P6 4 Adjust date P6 5 Adjust time P6 6 Parameters selection P6 7 Clear stored value P6 8 Automatic power off setup Submenu of pH parameter setting P3 1 Adjust TDS factor Main me...

Страница 22: ...rt to excel PDF press these keys to export the stored value to Microsoft Excel file or in PDF report file with GLP instruments and calibration information Save Open from file press these keys to manage the stored values M During operation press this key to store manually or begin an automatic datalogger The measuring information is downloaded to the computer through USB and will not be stored in t...

Страница 23: ...1 0 10 0 0 1 1 0 P2 2 Select conductivity standard solution STD CUS STD P2 3 Set due calibration No H00 D00 No P2 4 Check the date of the last calibration P2 5 Select reference temperature 15 30 25 P2 6 Adjust temperature compensation coefficient 0 00 9 99 1 91 P2 8 Restore to factory default setting No Yes No P2 9 Temperature calibration Calibration range 5 Factory default value P3 0 TDS P3 1 Adj...

Страница 24: ... range Press key when measuring value is not stable during calibration During calibration the measuring value is not stable for 3min Electrode zero electric potential out of range 60mV or 60mV Electrode slope out of range 85 or 110 pH measuring range out of range 2 00 pH or 16 00pH Enter in pre set due calibration to remind due calibration 70 Series Version 1 0 August 2017 ...

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