Manual PH-EC-O2 pH meter PCE-PHD 1
Contents
1. SALt salt measurement 52 pH mV measurement Note The default settings of the meter are displayed unit pH temperature unit C manual temperature compensation when the probe is not connected automatic power off deactivated sampling time of the data logger 2 seconds CAUTION WHEN FIRST USING THE PROBE ALONG WITH THE METER URGENTLY CALIBRATE BEFORE STARTING WITH THE MEASUREMENT pH measurement manual temperature compensation Switch on the device Select the PH measurement mode Put the plug of the probe into the BNC socket 16 Adapt the temperature manually to the temperature of the solution to be measured Hold the handle of the probe and dip the complete probe head into the solution Stir slightly The display will show the pH value and the set temperature value NOOR WD pH measurement automatic temperature compensation ATC Switch on the device Select the PH measurement mode Insert the plug of the probe into the BNC socket 16 Insert the plug of the temperature probe into the temperature socket 13 Hold the handles of the probes and dip the complete probe heads into the solution Stir slightly The display will show the pH value and the measured temperature value NOOR WD Note When the pH probe is not in use the probe head must be in the protective bottle PCE Instruments Manual 5 3 mV measurement The device has an mV2. which can be found in the probe tip Oxygen molecules can pass through the membrane whereas the substantially bigger molecules contained in the electrolyt cannot This feature enables the oxygen to spread out in the electrolyte of the probe and ist concentration can be measured To fill the electrolyte 1 Unscrew the probe head 3 2 Remove the old electrolyte from the probe head 3 Put the new electrolyte OXEL 3 into the probe head 4 Screw the probe head back together with the case Note When the probe is not in use the probe head must be in the protective bottle 13 Manual PCE Instruments 1 Case 2 Temperature sensor 3 Probe head 5 14 Other functions Data Hold If you press the Hold key 3 once during the measurement the values on the display are held frozen and the HOLD symbol is displayed This function can be cancelled by pressing the Hold key again Data record The data record function allows you to save the maximum and minimum values Press the REC key 4 once to activate the memory function The REC symbol is displayed Das REC Symbol wird angezeigt When the REC function is switched on If you press the REC key once the maximum value and the REC MAX symbol are displayed If you want to delete the maximum value press the Hold key 3 once Only the REC symbol is displayed and the memory function is continued Pressing the REC key again causes the minimum value to be displayed
3. C 0 200 0 uS cm 0 2 2 000 mS cm 2 20 00 mS cm 20 200 mS cm 0 01 uS cm 0 001 mS cm 0 01 mS cm 0 1 mS cm 2 of the measurement range 1 digit 1413 mS cm automatic 0 60 C 0 132 ppm 132 1 320 ppm 1 320 13 200 ppm 13 200 182 000 ppm 0 1 ppm 1 pom 10 ppm 100 ppm 2 of the measurement range 1 digit automatic 0 60 C 0 12 of weight 0 01 0 5 of the measurement range automatic 0 60 C 0 20 mg l in water 0 100 in air 0 50 C 0 1 mg 0 1 0 1 C 0 4 mg l 0 7 0 8 C in the air PCE Instruments Manual Temperature compensation automatic 0 50 C Temperature Measurement range 0 60 C Resolution 0 1 C Accuracy 0 8 C Temperature compensation automatic 0 60 C Technical specifications a 2 GB card included in the delivery 6 x 1 5 V AA batteries optional mains adapter Operating conditions sd 50 C lt 85 RH Board one chip micro computer LSI circuit Auto 1 sec to 8 hrs 59 min 59 sec with a sampling time of 1sec automatic saving may not work Data logger Sampling time sampling range Manual Press the data logger key to save data once Sampling time target 0 sec Advanced formatting of the SD memory card settings clock time setting year month date hour minute second sampling time setting auto power OFF setting b
4. day To return to normal measurement mode press the Time key again To check sampling time Press the Sampling key 8 once when you are in the normal measurement mode however not during logging The display will show the time in seconds Manual PCE Instruments 5 16 SD card structure When first using the SD card in the meter a directory called WWAA01 will be created When first using the data logging the data are saved in a subdirectory called WWAA01001 xIs until there are 30000 value pairs After that a new subdirectory is created e g WAA01002 xIs When the WAA01 directory contains more than 99 subdirectories a new directory called VWAA02 is created This means that the data paths correspond to the following schema WAA01 WAA01001 xIs WAA01002 xIs WAA01099 xIs WAAO2N WAA02001 xis WAA02002 xIs WAA02099 xis WAAXX Note The maximum value for XX is 10 5 17 To save the SD card data on the computer EXCEL software 1 After closing the logging function properly remove the SD card from the meter 2 Put the SD card into the corresponding card reader of the computer 3 Start the EXCEL software 4 Call up the desired file with xIs at the end from the SD card The data appear as a chart and can be presented as practical diagrams by means of the software The following is an example hereof 16 PCE Instruments Manual 5 18 Further settings To enter further settings of the device hold
5. or F When the display shows t CF 1 Use the arrow keys to set to C or F C temperature unit is C F temperature unit is F 2 Press the Enter key to confirm your selection To set the DO salinity compensation This function can only be used in do mode dissolved oxygen to set the compensation of the probe The default setting is 0 salinity When the display shows SAIt 1 Use the arrow keys to set the desired value 2 Press the Enter key to confirm your selection The setting is saved temporarily To set the DO height compensation This function can only be used in do mode dissolved oxygen to set the compensation of the probe The default setting is 0 meters or feet When the display shows High or Highf 1 Use the arrow keys to set the desired value 2 Press the Enter key to confirm your selection The setting is saved temporarily To set th eCD temperature compensation factor This function can only be used in Cd mode to set the compensation per degree of the probe The default setting is 2 per When the display shows PEr C 1 Use the arrow keys to set the desired value 2 Press the Enter key to confirm your selection The setting is saved temporarily 18 PCE Instruments Manual To choose between TDS and conductivity This function can only be used in Cd mode to switch between conductivity US mS and TDS ppm When the display shows tdS tdS T
6. the SET key 8 for more than two seconds It is important that during this process the datalogger function is not active Release the key now You can switch between the adjustment ranges by pressing the SET key again The display will show Sd F Formatting the memory card dAtE Setting time date SP t Setting sampling time PoFF Setting automatic power off bEEP Switching beeper on or off dEC Setting the decimal point fort he SD card t CF Selection of unit C or F SAIt Setting the DO salinity compensation only in do mode High Setting the DO height compensation meters only in do mode Highf Setting the DO height compensation feet only in do mode PEr C Setting the CD temperature compensation factor only in Cd mode tdS Selection of CD or TDS only in Cd mode t Set Manually setting the temperature compensation value only in PH mode ESC Leaving further settings To format the memory card Note If you format the memory card all data saved on it will get lost When the display shows Sd F 1 Use the arrow keys to set to YES or no yES Format the memory card no Do not format the memory card 2 If you have chosen yES press the Enter key 4 The display shows yES Enter 3 You can format the SD card by pressing the Enter key again To format the time date year month day hour minute second When the display shows dAtE 1 Use the arrow keys to change the f
7. word DATALOGGER stops flashing To continue logging press the Logger key again To stop logging To stop the logging process press the REC key 4 for more than two seconds during pause until the word REC disappears The process is stopped as soon as you release the key N CAUTION BEFORE REMOVING THE SD CARD FROM THE METER THE LOGGING PROCESS SHOULD URGENTLY HAVE BEEN FINISHED AS DESCRIBED ABOVE TO AVOID DATA LOSS Using the automatic datalogger set the sampling time 0 seconds To start logging 1 Press the REC key 4 once The display shows REC 2 Press the Logger key 8 DATALOGGER flashes on the display once and the beeper chimes At the same time the measurement values are time stamped and saved 3 On the lower side of the display you can see where the data is saved This information is also saved on the SD card If you want to save the data somewhere else press the A key 5 The position number will flash now Use the arrow keys to determine the desired position between 1 99 e g space 1 to space 99 To stop logging To stop the logging process press the REC key 4 for more than two seconds until the word REC disappears The process is stopped as soon as you release the key To check the time stamp Press the Time key 7 once when you are in the normal measurement mode however not during logging The display will show hour minute second If you press the key again it will show year month
8. DS ppm Cd conductivity uS mS 1 Use the arrow keys to set the desired value 2 Press the Enter key to confirm your selection To set the temperature compensation value manually This function can only be used in PH mode to set the compensation of the probe The default setting is 25 C or 77 F 1 Use the arrow keys to set the desired value 2 Press the Enter key to confirm your selection To leave further settings When the display shows ESC Press the Enter key to leave further settings and to return to the normal measurement function Note You can leave further settings by pressing the ESC key 3 5 19 RS232 interface The device is equipped with an RS232 interface via a 3 5 mm socket The output is a 16 digit stream which can be set in line with the user specific requirements An RS232 cable with the following features is necessary to connect the device to a computer PC SW D Connector Center P N sssssssssnrnsnsararar PIN 4 3 5 mm jack plug Ground shield ccccesese000 PIN 2 2 2K resister Pin 5 19 Manual PCE Instruments The 16 digits data stream will be displayed in the following format D15 D14 D13 D12 D11 D10 D9 D D D6 D5 D4 D3 D2 D1 DO Each digit indicates the following status D15 Start Word Di4 4 D13 When send the upper display data 1 When send the lower display data 2 Di2 Dii Annunciator for Display uS 13 mS 14 PPM 19 PH 05 mV 18 03 m
9. NTS IT IS RECOMMENDED TO CARRY OUT A CALIBRATION BEFORE EVERY MEASUREMENT To measure dissolved oxygen 1 Put the plug oft he oxygen probe into the DO socket 14 2 Switch on the device 3 Select the do measurement mode 4 Hold the handle of the probe and dip the probe head at least 10 cm deep into the solution to be measured so that the probe takes over the temperature of the liquid which enables automatic temperature compensation If the difference in temperature between the probe and the solution is only a few degrees a few minutes for temperature compensation are sufficient 5 For the measurement it is enough to dip the tip of the probe into the liquid However the flow velocity of the medium must be at least 0 2 0 3 m s This can also be achieved by shaking the probe 6 The display will show the value of dissolved oxygen in mg l as well as the temperature oft he solution 7 Clean the probe with ordinary tap water after each series of measurements Note Under laboratory conditions it is recommended to use a blendet or stirrer to ensure a consistent flow velocity In this way the diffusion of ambient air oxygen into the solution can be reduced to the minimum 5 11 Atmospheric oxygen content measurement When the device is in do mode press the control key 6 in order to switch from mg l to 02 The atmospheric oxygen content is now displayed as a reference value 12 PCE Instruments Manual 5 12 Calibra
10. PCE Instruments PCE Instruments UK Ltd Units 12 13 Southpoint Business Park Ensign way Southampton Hampshire United Kingdom SO31 4RF Tel 02380 98703 0 Fax 02380 98703 9 info industrial needs com www industrial needs com www pce instruments com english Manual PH EC O2 pH meter PCE PHD 1 Version 2 0 30 12 2014 Manual PCE Instruments Table of contents 1 AEVIPOCUIC ON osiris EE E a E E E E EEE EE A E EA 3 1 1 BEE ge 015 OE REE EN EN AnaS 3 2 Se NONA 3 2 1 WY UG SV 0 00 SJ E eases coancuere 3 2 2 AIO NNN 3 S SN 4 eV Ke 3 ed oe EEE EE EE 7 BO MEPS UCC ONS Le 8 5 1 Mode SEISCTION AERES 8 5 2 JF Eee NE EEE EEE EN 8 5 3 mV measurement EEE EEE 9 5 4 oa es oe KE E T A 9 5 5 Conductivity measurement ccccseeecccccceeeseeecccueuseceecceaueeeeessueueeeeeseuaseeeeesseaeeeeeesaaseeeessaaaeeeess 10 5 6 PTE 11 Der Conductivity calbr 0n vavservseessersreseemddese ra ee 11 5 8 Salt content MEASUPEMENL ccccccseseeecccceeceeeesseeceeeeeeeaseesseeeeeeesssaaseeeeeeeeessaueaseeeeeeesssaaaeeeeeeees 11 59 Calibration of the salt content measurement rrrnnrrrrrrrnnnrrrvrrrnnnrnrrnnrnnnrrrennrnnnnssennnnnnsrnnnnnnsnee 12 5 10 Dissolved oxygen measurement rrrnnrnnnnnnvnnrnnnnnrrnnrnnnnnrennnnnnnrrnnnnnnnnssnnnnnnsnsrnnnnnnsssennnnnnssennnnnnn 12 5 11 Atmospheric oxygen content measurement cccccseececceseecceseeeceeeeeeseeseeessaseeessegeeessseeeeees 12 5 12 Calibration of the atmospheric oxygen co
11. again At the same time REC MIN is displayed If you want to delete the minimum value press the Hold key 3 once Only the REC symbol is displayed and the memory function is continued To finish the memory function press the REC key for at least two seconds The display shows the current measurement Backlight After switching on the device the backlight is automatically on You can switch it off by pressing the power key 2 once You can switch it back on by pressing the key again 5 15 Datalogger Preparation before logging 1 Insert the SD card Put the SD card 1 Gb to 16 GB correctly into the slot 20 2 Format the SD card If the memory card is used for this meter the first time it is recommended to format it 3 Set the time When you use the device for the first time the time must be set 4 Set the decimal point The default setting for the decimal point is a dot e g 3 14 However in Europe a comma is more common e g 3 14 To avoid misunderstandings reading errors the desired decimal point should be set Using the automatic datalogger set the sampling time 2 1 second To start logging 1 Press the REC key 4 once The display shows REC 2 Press the Logger key 8 DATALOGGER flashes on the display At the same time the measurement values are time stamped and saved 14 PCE Instruments Manual To pause during logging You can pause recording by pressing the Logger key 8 The
12. ductivity electrode 1 x SD memory card 1 x card reader 6 x batteries and user s manual 2 Safety notes 2 1 Warning symbols A General warning Urgently consult the documentation __ i Operating voltage is under its set point Change batteries to avoid faulty measurements 2 2 Safety precautions Please read this user s manual carefully and completely before you use it for the first time The device may only be used by qualified personnel There is no warranty of damage caused by non observance of the manual Non observance of the manual may be dangerous for the user or cause destruction of the device The device may only be used in approved temperature and humidity range Direct exposure to sunlight or moisture e g wet hands must be avoided The opening of the case should only be done by qualified personnel of PCE Instruments The instrument should never be placed with the user interface facing an object e g keyboard side ona table You must not make any technical changes to the device The appliance should only be cleaned with a damp cloth use only pH neutral cleaner no abrasives or solvents The meter may only be used with the accessories offered by PCE Instruments or equivalent Before using the device check the case and the test leads for visible damage If you find damage do not use the device The appliance must not be used in potentially explosive atmospheres If the battery is flat
13. e pH value and the set measured temperature value 8 Press the REC key and the Hold key at the same time until the following is displayed or calibration by means of a solution with a pH value of 4 ifor calibration by means of a solution with a pH value of 7 Manual PCE Instruments for calibration by means of a solution with a pH value of 10 deleting the existing calibration 10 By pressing the Enter key you can finish the calibration A Note You should make at least a two point calibration i e pH 7 and pH 4 calibration or pH 7 and pH 10 calibration First calibrate with pH7 and afterwards with pH 4 pH10 Between the processes clean the electrode with distilled water Carry out the two point calibration at least twice 5 5 Conductivity measurement Note The default settings of the meter are displayed unit uS mS temperature unit C temperature compensation factor 2 per C automatic range selection automatic power off deactivated sampling time of the data logger 2 seconds N CAUTION WHEN FIRST USING THE PROBE ALONG WITH THE METER URGENTLY CALIBRATE BEFORE STARTING WITH THE MEASUREMENT To measure conductivity 1 Put the plug of the conductivity probe into the CD socket 15 2 Switch on the device 3 Select the Cd measurement mode 4 Hold the handle of the probe and dip the complete probe head into the solution 5 Shake the probe to make sure that the air bubble escapes
14. eep sound ON OFF selection of decimal point for the SD card selection of temperature unit C or F compensation values setting Power consumption normal operation with no saving in process and when display light is OFF approx 14 mA with saving in process and when display light is OFF approx 37 mA Manual PCE Instruments when display light is on the power consumption will increase by approx 12 mA Data Hold data on display can be held frozen Memory recall minimum and maximum values Conditions to achieve the stated accuracies field strength lt 3 V m and frequency lt 30 MHz PC E Instruments Manual 4 Device description Display Power key backlight Hold key ESC key REC key Enterkey Battery compartment cover Battery comparment screw Mounting hole for tripod Temperature socket PH ATC socket DO socket CD socket PH socket BNC socket DC 9V socket for PSU Reset key RS232 interface Slot for SD card Manual PCE Instruments 5 Instructions 5 1 Mode selection 1 Switch on the meter by pressing and holding the power key 2 for a few seconds Pressing and holding the key again for more than two seconds switches off the device 2 You can choose from four modes After pressing the mode key 5 the display will show the following options in sequence pH mV ORP measurement Do dissolved oxygen measurement conductivity TDS measurement
15. from the probe head 6 The display will show the conductivity value and the measured temperature value Manual range selection Automatic range selection is set as default for measuring conductivity but by means of the Range key you can switch between the two ranges Zero adjustment When the probe is not in the solution to be measured and the display still does not indicate Zero you can force Zero to be displayed by pressing the zero key 5 for at least 10 seconds Note Zero adjustment is only possible in the range of 200 uS and with a deviation of lt 2 US 10 PCE Instruments Manual 5 6 TDS measurement The procedure is as in conductivity measurement The only difference is that the unit most be switched from US mS to ppm 5 7 Conductivity calibration For calibration a conductivity standard solution is necessary e g 1 413mS standard solution for a measurement range of 2 mS 80 uS standard solution for a measurement range of 200 uS and 12 88 mS for a measurement range of 20mS To carry out a conductivity calibration 1 Put the plug of the conductivity probe into the CD socket 15 2 Switch on the device 3 Select the Cd measurement mode 4 Hold the handle of the probe and dip the complete probe head into the solution 6 Shake the probe to make sure that the air bubble escapes from the probe head 6 The display will show the conductivity value 7 Press the REC key anad the Hold key at the same time
16. g L 07 02 06 D10 Polarity 0 Positive 1 Negative D8 to Di Display reading Di LSD D8 MSD For example If the display reading is 1234 then D8 to Di is 00001234 DO End Word RS232 FORMAT 9600 N 8 1 Baud rate 9600 Parity _ No parity Data bit no 8 Data bits Stop bit 1 Stop bit 20 PCE Instruments Manual 6 Maintenance and cleaning 6 1 Battery replacement WARNING TO PREVENT FAULTY MEASUREMENTS AND RESULTING INJURIES REPLACE THE BATTERY AS SOON AS THE BATTERY SYMBOL APPEARS MAKE SURE THAT THE TEST LEADS ARE NEITHER CONNECTED TO THE CIRCUIT TO BE CHECKED NOR TO THE DEVICE BEFORE YOU OPEN THE CASE To replace the battery remove the screws 11 from the battery compartment cover 10 and remove the cover from the battery compartment Replace the batteries by batteries of the same type and mount the cover back on 6 2 System reset In case of a severe system error a system reset can solve the problem To do so press the Reset key with a thin object during switch on Note that this causes furher settings to be reset to factory defaults 7 Disposal For the disposal of batteries the 2006 66 EC directive of the European Parliament applies Due to the contained pollutants batteries must not be disposed of as household waste They must be given to collection points designed for that purpose In order to comply with the EU directive 2012 19 EU we take our devices back We either re use them or
17. give them to a recycling company which disposes of the devices in line with law If you have any questions please contact PCE Instruments MCE AWA DOR rebumanrts com All products are CE and RoHs approved 21 Manual PCE Instruments 8 Contact If you have any questions about our range of products or measuring instruments please contact PCE Instruments By post PCE Instruments UK Ltd Units 12 13 Southpoint Business Park Ensign Way Southampton Hampshire United Kingdom SO31 4RF By phone Support 02380 987 035 Sales 02380 987 030 You can find an overview of our measuring instruments here http www indusirial needs com measuring instruments htm You can find an overview of our scales here http www indusirial needs com balances htm 22
18. lashing value 2 To get to the next value press the Enter key 4 3 After making the desired settings press the SET key to save the changes The display switches automatically to the setting of the sampling time Note Once the time has been set it goes on even when you switch off the device provided that the batteries are flawless To set the sampling time hour minute second When the display shows SP t 1 Use the arrow keys to change the flashing value 2 To get to the next value press the Enter key 4 3 After making the desired settings press the SET key to save the changes The display switches automatically to the setting of Auto power OFF To set Auto power OFF When the display shows PoFF 1 Use the arrow keys to set to yes or no yes Auto power OFF active 17 Manual PCE Instruments no Auto power OFF inactive 2 After choosing press the Enter key to confirm your selection To switch the beeper on and off When the display shows beep 1 Use the arrow keys to set to yes or no yes the beeper chimes no the beeper does not chime 2 Press the Enter key to confirm your selection To set the decimal point for the SD card When the display shows dEC 1 Use the arrow keys to set to bASIC or Euro basic A dot is used as decimal point Euro A comma is used as decimal point 2 Press the Enter key to confirm your selection To choose a unit C
19. millivolt measurig function wich allows the user to make ORP and other precise mV measurement To measure the mV value 1 Switch on the device 2 Select the PH measurement mode 3 Press the control key 6 The display switches from pH to mV if you press the key again the display switches back from mV to pH 4 Put the plug of the ORP probe into the BNC socket 16 5 The display will show the mV value 5 4 pH calibration Background An ideal pH electrode generates a voltage value of zero millivolts when the pH value is seven The device was Calibrated with signals which indicate this optimum value at an ambient temperature of 25 C Not all electrodes come up to these optimum values That is why a calibration must be carried out before first use Additionally occasional calibrations of a used probe makes sense in order to ensure precise measurements For calibration a pH electrode and a pH standard solution are necessary To carry out a pH calibration 1 Put the plug of the pH probe into the BNC socket 16 2 Switch on the device 3 Select the PH measurement mode 4 Adapt the temperature manually to the temperature of the standard solution or put the plug of the temperature probe into the temperature socket 13 If you want to use the temperature probe you must dip it into the the standard solution 5 Dip the tip oft he pH probe into the standard solution 6 Stir slightly 7 The display will show th
20. ntent measurement rrrrrrnnnnnrvrrnnnrevnnnnnrnnnnnnrenvnnnre 13 5 13 Maintenance of the oxygen probe ccccccseeeeceeccaeeeeeeeeeaeeeeeeeeseeeeeeeeeseaeeeeeesaeeeeeseeeaaeeeeeessaaaes 13 5 14 Other 1 6 0 ccicedrtarenitecccttesmiceiieesisa wae ineeiaduiteniseoaa ae a Raa E a aR e 14 5 15 BEENS OC EE EEE EE 14 5 16 DN 16 5 17 To save the SD card data on the computer EXCEL Software cccceccceceseeeeseeeeeeeeeeeeeees 16 5 18 EE SEUNS Frk 17 5 19 KS ne GO EN saab sueandcegenasbet ebeoea stance ebaenneent 19 G M nenance nd Cleaning scssi eee 21 6 1 Battery replacement axrcanansamentaneamentalesmscntiann tounsnenmeagabenReasiereaiedieet dad neadendateutdntilouRiedusedmeakaesmenbaae 21 6 2 VE GL EEE ANN 21 TDN ZZ 0009005000 21 o COMIC eee 22 NO PCE Instruments Manual 1 Introduction Thank you for purchasing a PCE PHD 1 meter from PCE Instruments This portable pH meter can test the pH value of water as well as conductivity temperature and the oxygen content The meter is delivered with an integrated conductivity sensor and a pH sensor You can store all values on an SD card up to 16 GB in Excel format and also transfer them to a computer using the RS 232 interface A three point calibration and automatic temperature compensation guarantee a high degree of accuracy even with variable temperature measurements 1 1 Delivery contents 1 x pH meter PCE PHD 1 1 x pH electrode 1 x con
21. tion of the atmospheric oxygen content measurement N CAUTION TO ENSURE THE BEST POSSIBLE CALIBRATION RESULT MAKE SURE THAT THE ALIBRATION IS CARRIED OUT IN A WELL VENTILATED ENVIRONMENT THE VOLUME SHARE F OXYGEN IN THE AMBIENT AIR IS NORMALLY 20 9 THAT IS WHY THIS VALUE SERVES AS HE REFERENCE VALUE To carry out an oxygen calibration 1 Put the plug oft he oxygen probe into the DO socket 14 2 Switch on the device 3 Select the do measurement mode 4 Use the control key 6 to switch from mg l to 02 5 Wait until the measurement value has stabilised This will take at least five minutes 6 Press the REC key and the Hold key at the same time until the following is displayed for example 7 Press the Enter key The device counts from 30 to 0 then returns to normal measuring operation and finishes the calibration The calibration process takes 30 seconds 5 13 Maintenance of the oxygen probe First use of the probe In order to keep the probe in good condition from the beginning first fill the electrolyte oft he probe After longer use of the probe Whenever an exact device calibration fails or no stable measurement value can be determined check whether the level of electrolytes in the probe head is too low or whether the membrane is dirty in case the probe contains a membrane Background information on a probe with a membrane in the measurement head This is a thin membrane made of Teflon
22. until the following is displayed 8 Press the Enter key The measurement value will be shown on the upper and on the lower side of the display 9 Use the arrow keys to set the upper value exactly to the value of the standard solution value of the stadard solution 10 Press the Enter key so that the data are saved and the calibration is finished FAN Note If you only want to carry out a one point calibration it is sufficient to calibrate the measurement range of 2 mS If you make a calibration with several points you must first calibrate the range of 2 mS and afterwards the other ranges 5 8 Salt content measurement To measure the salt content 1 Put the plug of the conductivity probe into the CD socket 15 2 Switch on the device 3 Select the SALt measurement mode 4 Hold the handle of the probe and dip the complete probe head into the solution 6 Shake the probe to make sure that the air bubble escapes from the probe head 6 The display will show the salt content in 1 is equivalent to 10 g kg 11 Manual PCE Instruments 5 9 Calibration of the salt content measurement If you have already carried out a calibration of the conductivity measurement a calibration oft he salt content measurement is not necessary 5 10 Dissolved oxygen measurement NGAUTION WHEN FIRST USING THE PROBE ALONG WITH THE METER URGENTLY CALIBRATE BEFORE STARTING WITH THE MEASUREMENT IN ORDER TO ENSURE EXACT MEASUREME
23. which is indicated by the battery indicator do not use the meter as faulty measurements can cause life threatening situations You can carry on after replacing the batteries Check for proper functionality by measuring a known quantity It is very urgent that you do not exceed the set points stated in the specifications Before opening the case in order to replace the battery or fuse remove all test leads to avoid an electric shock When you do not use the device for a long time remove the batteries to avoid damage caused by leakage of the battery This user s manual is published by PCE Instruments without any guarantee We expressly refer to our general guarantee terms they can be found in our general terms of business If you have any questions please contact PCE Instruments 3 Specifications PH measurement Measurement ranges Resolution Accuracy Calibration Temperature compensation Conductivity Measurement ranges Resolution Accuracy Calibration Temperature compensation Total dissolved solids TDS Measurement range Resolution Accuracy Temperature compensation Salt content Measurement range Resolution Accuracy Temperature compensation Oxygen Measurement range Resolution Accuracy Calibration Manual PCE Instruments 0 00 14 00 pH 0 01 pH 0 02 pH 2 digits 3 points pH 4 pH 7 y pH 10 automatic with additional temperature sensor 0 60 C or manual 0 100
Download Pdf Manuals
Related Search