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Instruction Manual                                                                                              CON 6/TDS 6 

22

 

5 MEASUREMENT 

The CON 6/TDS 6 meter is capable of taking measurements with automatic or 
manual temperature compensation.  

5.1 

With Automatic Temperature Compensation (ATC) 

For ATC, make sure the phono jack of the probe (

see Figure in Section 3.5

) is 

securely inserted.  

The conductivity/TDS reading displayed will be compensated for according to 
the normalization temperature (20 °C or 25 °C) selected. 

See Section 6.6 – 

Normalization Temperature.

  

5.2 

Содержание CON 6

Страница 1: ...Instruction Manual CON 6 TDS 6 Hand held Conductivity TDS Meter Technology Made Easy 68X243618 Rev 3 06 06 ...

Страница 2: ...ts in the use of the Conductivity and TDS handheld meters please do not hesitate to contact the nearest Eutech Instruments Oakton Instruments Authorized Distributor Eutech Instruments Oakton Instruments will not accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument The information presented in this manual is subjected to change without notice as ...

Страница 3: ...vity 18 4 5 Manual Calibration Conductivity or TDS 20 4 6 Temperature Calibration 21 5 MEASUREMENT 22 5 1 With Automatic Temperature Compensation ATC 22 5 2 Without ATC Manual Temperature Compensation 23 5 3 Taking Measurements 24 5 4 Using Manual Ranging Function 24 5 5 HOLD Function 26 6 A VANCED SETUP FUNCTIONS D 27 6 1 Advanced Setup Overview 27 6 2 Select Cell Constant 31 6 3 Automatic Calibr...

Страница 4: ...14 ADDENDUM 2 CALCULATING tDS CONVERSION FACTOR 48 15 Addendum 3 calculating temperature coefficients 49 16 WARRANTY 51 17 RETURN OF ITEMS 52 ...

Страница 5: ...olved Solids TDS and Temperature C This sturdy meter measures up to 5 different ranges with auto ranging capability that switches to appropriate measuring range automatically Your meter includes a conductivity electrode cell constant K 1 0 with built in temperature sensor Order Code EC CONSEN91B 35606 55 a rubber boot 4 alkaline AAA batteries instruction manual and warranty card Please read this m...

Страница 6: ...Instruction Manual CON 6 TDS 6 2 mS ON OFF HOLD ENTER CAL MODE CON 6 Conductivity Meter C ...

Страница 7: ...n is activated and LO low battery condition See Figure below pptm HO LO mS µ 1 2 3 4 5 6 7 C LCD and Customized Annunciators for CON 6 TDS 6 meter 1 Primary display 4 Temperature indicator 2 Parts Per Million ppm or Parts Per Thousand ppt indicator available for TDS 6 meter only 5 Percentage indicator for Temperature Coefficient 3 milli Siemens cm mS or micro Siemens cm µS indicator available for ...

Страница 8: ...Instruction Manual CON 6 TDS 6 4 2 2 ...

Страница 9: ...TER Press to confirm values in calibration mode and to confirm selections in SETUP mode In Calibration Mode Press to scroll through calibration values In Setup Mode Press to scroll through the setup sub group programs Press key during conductivity measurement mode to activate manual ranging function Each key press will move up higher conductivity range MODE Selects measurement mode for conductivit...

Страница 10: ...eter into rubber boot slide in from the top of meter before pushing the bottom edges of meter down to set it into position Lift up the stand at the back of meter for bench top applications if necessary 3 2 Inserting the Batteries The battery compartment is found at the back of instrument as shown To open the battery compartment 1 Push in the direction of arrow and lift up the cover 2 Note the pola...

Страница 11: ...eplacement A LO annunciator in the LCD alerts you when battery power is running low See Figure below Replace with the same type as recommended by the manufacturer LO S µ LO Battery Condition Caution Power off the meter when changing battery 3 4 ...

Страница 12: ... resistant properties It provides fast temperature response and reduces air entrapment which makes it easy to obtain accurate stable readings The probe materials used which have good chemical durability include 1 Polyetherimide Ultem protective probe guard 2 Polybutylterphalate Valox sensor housing 3 Stainless Steel SS 304 2 steel bands Proper use of probe is essential to ensure that the optimum m...

Страница 13: ...nt and 2 submerge the cable for brief periods of time but not continuously ee Section 7 Probe Care and Maintenance for more information DO NOT remove the calibration as it may affect your readings We recommend that you do not submerge the probe above the protective guard You can S ...

Страница 14: ... Insert the mini phono jack of temperature sensor into the socket on the meter as shown below 4 Unplug the phono jack when not in use or when you want to measure Conductivity or TDS without any temperature compensation Manual Temperature Compensation see Section 5 2 CAUTION Do not pull or force on the probe cord or the probe wires might disconnect NOTE Keep connectors clean Do not touch connector ...

Страница 15: ...On When switching the meter on it will go through a series of display showing the various setup parameters For CON 6 Measurement Mode mS µ C pptmV pH MIN MAX LO HO F C mS µ S µ ON OFF For tdS 6 Measurement Mode C ON OFF ppm pptmV pH MIN MAX LO HO F C mS µ pptm ...

Страница 16: ... 0 3 Third screen shows t 25 0 C which is the Normalization Temperature You can set Normalization Temperature at either 25 C or 20 C Refer to Section on Advance Setup Default value is 25 C 4 Fourth screen shows t 2 1 which is the Temperature Coefficient You can customise the meter with different Temperature Coefficient value from 0 0 to 3 0 C from the Advance Setup mode Default value is 2 1 C 5 Al...

Страница 17: ...tivity TDS ÙTemperature Measurement Mode To switch between Conductivity TDS measurement mode and Temperature measurement mode simply press the MODE key The customized annunciator helps indicate the measurement parameter you are in Annunciator MODE S µ C ...

Страница 18: ...0 ppm 3 00 to 8 50 ppm 0 0 Æ 200 0 µS 60 0 to 170 0 µS 10 0 Æ 100 0 ppm 30 0 to 85 0 ppm 0 Æ 2000 µS 600 to 1700 µS 100 Æ 1000 ppm 300 to 850 ppn 0 00 Æ 20 00 mS 6 00 to 17 00 mS 1 00 Æ 10 00 ppt 3 00 to 8 50 ppt 0 0 Æ 200 0 mS 60 0 to 170 0 mS 10 0 Æ 200 ppt 30 0 to 170 ppt When you recalibrate your meter old calibrations are replaced on a range basis For example if you previously calibrated your...

Страница 19: ...Instruction Manual CON 6 TDS 6 15 4 2 ...

Страница 20: ...ized water and store it dry calibrate the meter once a month If you take measurements at extreme temperatures calibrate at least once a week Ensure that you use new Conductivity standard solutions or sachets during calibration Do not reuse standard solutions as it may be contaminated and affect the calibration and accuracy of measurements Use fresh calibration solution each time you calibrate your...

Страница 21: ... used for automatic calibration are Meter Normalisation Temperature Calibration Standards Range 25 C 1 84 µS for 0 200 µS cm 2 1413 µS for 0 2000 µS cm 3 12 88 mS for 0 00 20 00 mS cm 4 111 8 mS for 0 0 200 0 mS cm CON 6 20 C 1 76 µS for 0 200 µS cm 2 1278 µS for 0 2000 µS cm 3 11 67 mS for 0 00 20 00 mS cm 4 102 1 mS for 0 0 200 0 mS cm Table 1 Conductivity Calibration Standards for Auto calibrat...

Страница 22: ...ed in Table 1 3 Dip the probe into the calibration standard Immerse the probe tip beyond the upper steel band see Figure in Section 3 4 Stir the probe gently to create a homogeneous sample Allow time for the reading to stabilize 4 Press CAL key to enter conductivity calibration mode The CA indicator will appear for 1 5 seconds and a value will appear flashing To exit calibrati NOTE on without conf...

Страница 23: ... solution is below 0 C or above 50 C 0 C t C 50 C an error message Err 2 will be displayed when performing the auto calibration and meter will return to measurement mode 3 All new calibration data will over ride existing stored calibration data for each measuring range calibrated 4 It is important to use new conductivity calibration standards 5 Low conductivity standard solution less than 20 µS cm...

Страница 24: ...tandard Immerse the probe tip beyond the upper steel band see Figure in Section 3 4 Stir the probe gently to create a homogeneous sample Allow time for the reading to stabilize 4 Press CAL key to enter conductivity calibration mode The CA indicator will appear for 1 5 seconds and a value will appear flashing NOTE To exit calibration without confirmation press CAL key again to go back to measuremen...

Страница 25: ...if necessary press MODE key to select temperature measurement mode See Section 3 7 3 Press CAL key to start temperature calibration process 4 Dip the probe into a solution with known temperature for example a temperature bath Allow time for the temperature to stabilize 5 Wait for the value to stabilize and press or key and adjust the value to the solution temperature Press the ENT 6 ER key The CO ...

Страница 26: ...erature compensation 5 1 With Automatic Temperature Compensation ATC For ATC make sure the phono jack of the probe see Figure in Section 3 5 is securely inserted The conductivity TDS reading displayed will be compensated for according to the normalization temperature 20 C or 25 C selected See Section 6 6 Normalization Temperature 5 2 ...

Страница 27: ...rement is disconnected from the meter See Figure in Section 3 5 2 Switch on the meter and if necessary press MODE key to select temperature measurement mode See Section 3 7 3 Press CAL key to start temperature calibration process 4 The CA will appear momentarily and a temperature value will start flashing 5 Check the temperature of your sample using an accurate thermometer Wait for the value to st...

Страница 28: ...ample take care to ensure that the liquid level is above its upper steel band Stir the probe gently in the sample to create a homogenous sample See Figure in Section 3 4 5 4 Using Manual Ranging Function By default your meter has auto ranging ability and would automatically selects the range in which your readings appear However you may also manually select a specific range you want to measure Thi...

Страница 29: ... cm Manual ranging 0 200 0 mS cm S µ S µ S µ NOTE If the value of the solution you are measuring is higher than the range selected Or will appear on the primary display Press RANGE until the correct range is selected The meter resets to the Auto ranging function once it is turned off You will have reset the manual ranging function each time you turn the meter off 5 5 ...

Страница 30: ...mode 1 To hold a measurement press the HOLD key while in measurement mode HO will appear on the display 2 To release the held value press the HOLD again Continue to take measurements NOTE This meter shuts off automatically after 20 minutes of nonuse If the meter is shut off either automatically or manually the HOLD value will be lost S µ S µ HOLD ENTER HO ...

Страница 31: ...eys for 2 seconds First release ON key first before releasing the MODE key 3 StUP indicator will appear momentarily and CELC will appear next 4 Overviews of CON 6 and TDS 6 s Setup Menu as follows Enter Setup Page Select Cell Constant Choice of k 0 1 1 0 and 10 0 Default value is 1 0 Select Automatic Calibration Yes for auto calibration and no for manual calibration Default value is Yes Available ...

Страница 32: ... C or 25 C Default value is 25 C Adjust TDS factor from 0 4 to 1 0 Default value is 0 5 Available in TDS 6 meter only Select Single Point Calibration Choice of Yes or No Default value is Yes User re set to factory defaults Choice of Yes or No Default value is no Overview of Advanced Setup ...

Страница 33: ...er Off Press ON OFF and MODE keys simultaneously for 2 seconds release ON OFF key first then release MODE key a second later A StUP indicator will appear for 1 5 seconds before showing the first menu ON OFF MODE Overview of CON 6 Setup Menu ...

Страница 34: ...er Off Press ON OFF and MODE keys simultaneously for 2 seconds release ON OFF key first then release MODE key a second later A StUP indicator will appear for 1 5 seconds before showing the first menu ON OFF MODE Overview of TDS 6 Setup Menu ...

Страница 35: ...or 10 ppm The cell included with your meter has a cell constant of K 1 0 1 Enter the advanced setup as described in Section 6 1 2 Press or key until CELC appears on the LCD Press ENTER key 3 Press or key to select either 1 0 0 1 or 10 0 Ensure the cell constant selected correspond with the conductivity electrode you are using HOLD ENTER 4 Press ENTER key to select The meter will take you back to t...

Страница 36: ...he meter will take you back to the menu ACAL 5 Press or key to move to the next menu or press CAL to exit to measurement mode 6 4 Setting the TDS Factor for TDS 6 The concentration of salts dissolved in solution increases the conductivity of that solution This relationship varies from salt to salt and is roughly linear over a given range for a given salt The TDS conversion factor is the number use...

Страница 37: ...uctivity per degree of temperature it is expressed in percent per C Entering the exact temperature coefficient of your solution lets you accurately compensate temperature for almost any solution You can adjust 0 0 to 3 0 per C Meter default is 2 1 per C HOLD ENTER 6 Enter the advanced setup as described in Section 6 1 7 Press or key until t Co appears on the LCD Press ENTER key 8 Press or key to s...

Страница 38: ... C 5 Press or key to move to the next menu or press CAL to exit to measurement mode 6 7 Single Point Calibration Single point calibration refers to calibrating one conductivity value and uses it for the entire 5 conductivity ranges By selecting no to single point calibration you can perform calibration for each conductivity range 1 Enter the advanced setup as described in Section 6 1 HOLD ENTER 2 ...

Страница 39: ...Once activated the meter s settings and calibration data will be erased and always exercise caution as meter reset is not reversible 1 Enter the advanced setup as described in Section 6 1 HOLD ENTER 2 Press or key until UrSt appears on the LCD Press ENTER key 3 Press or key to select either Yes or no 4 Press ENTER key to select 5 The meter will go back to measurement mode after the switch on initi...

Страница 40: ...utions Clean the electrode thoroughly by stirring it in a mild detergent bath or isopropyl alcohol Wipe the probe with a soft tissue paper Rinse thoroughly in tap water and then in deionized water Recalibrate the meter after cleaning the probe The conductivity probe Order Part No EC CONSEN91B 35606 55 which is included with your meter features a removable probe guard to make cleaning easy To remov...

Страница 41: ...batteries with correct polarity c Replace batteries Unstable readings a Air bubbles in probe b Dirty probe c Probe not deep enough in sample d External noise pickup or induction caused by nearby electric motor e Broken probe a Tap probe to remove bubbles b Clean the probe and re calibrate c Make sure sample entirely covers the probe sensors d Move or switch off interfering motor e Replace probe Sl...

Страница 42: ... calibration error Auto calibration is performed outside the temperature range 0 50 C Check the temperature and make sure that it is within the acceptable range If message persists return unit Err 3 Conductivity calibration error Calibration point is within 10 of the measurement range in the manual calibration mode Check the value of the conductivity calibration solution If message persists return...

Страница 43: ...10 00 10 00 to 100 0 Up to 200 ppt depending on the TDS factor setting Resolution 0 01 0 1 1 ppm 0 01 0 1 ppt Accuracy 1 F S Temperature Range 10 0 to 110 0 C Resolution Accuracy 0 1 C 0 5 for C Cell Constant 0 1 1 0 10 0 selectable Temperature Compensation Automatic Manual from 0 to 50 C Temperature Coefficient 0 0 to 3 0 C Normalization Temperature 20 0 C and 25 0 C selectable Conductivity to TD...

Страница 44: ...g HOLD Function Auto Power off 20 minutes after last key operation Inputs BNC for conductivity and phono jack for temperature Display Single Custom LCD Power Requirements 4 AAA Batteries Battery Life 100 hours Dimension Weight Meter 14 x 7 x 3 5 cm 200 g ...

Страница 45: ...e of k 1 0 EC CONSEN91B 35606 55 EC CON603k 35606 10 CON 6 portable TDS meter complete with conductivity probe of k 1 0 EC CONSEN91B 35606 55 EC TDS603K 35606 15 3 ring SS Ultem body Electrode with ATC BNC plug for CON 6 cell constant 1 0 x110 mm 1m cable length EC CONSEN91B 35606 55 Carrying Kit with empty bottles EC ECODRY KIT 35632 97 Electrode Storage Solution EC RE 005 00653 04 Electrode Clea...

Страница 46: ...ibration Solution in 480 ml leak proof bottle 1 pint EC CON 2764BT 00653 20 10 µS conductivity standard sachet 20 ml x 20 pcs EC CON 10BS 35653 09 447 µS Conductivity Sachets 20 units x 20 ml per box EC CON 447BS 35653 10 1 413 µS Conductivity Sachets 20 units x 20 ml per box EC CON 1413BS 35653 11 2 764 µS Conductivity Sachets 20 units x 20 ml per box EC CON 2764BS 35653 12 15 000 µS Conductivity...

Страница 47: ...ctrical resistance of a solution C 1 R where C is conductance siemens R is resistance ohms One can combine Ohms law with the definition of conductance and the resulting relationship is C I E where I is current amps E is potential volts In practice conductivity measurements involve determining the current through a small portion of solution between two parallel electrode plates when an AC voltage i...

Страница 48: ...ever this term has been replace by the term siemen Conductivity measurements are reported as Siemens cm since the value is measured between opposite faces of a cell of a known cubic configuration With most aqueous solutions conductivity quantities are most frequently measured in microSiemens per cm µS cm or milliSiemens per cm mS cm The salinity value which ranges from 2 to 42 is a measure of all ...

Страница 49: ... particularly where high purity water is involved The unit most often used to describe resistivity is megohm cm which are simply the reciprocal of conductivity µS cm The chart below shows the relationship between these units Conductivity µS cm Resistivity megohm cm 0 056 18 0 1 10 1 0 1 0 2 5 0 4 10 0 0 1 ...

Страница 50: ...per degree depends on the composition of the solution being measured However for most medium range salt concentration in water 2 per degree works well Extremely pure water exhibits a temperature coefficient of 5 2 and concentrated salt solutions about 1 5 Since temperature affects the conductivity measurement so profoundly the usual practice is to reference the conductivity to some standard temper...

Страница 51: ...et specified 1 F S accuracy If you are measuring in the mid ranges and you washed the probe in deionized water and stored it dry calibrate the meter at least once a month Wet the probe for 10 minutes before calibrating or taking readings to saturate the probe surface and minimize drift If you make measurements at extreme temperatures calibrate the meter at least once a week You should only use the...

Страница 52: ...ns Actual TDS Value from the solution bottle label or as a standard you make using high purity water and precisely weighed salts Actual Conductivity Value measured using a properly calibrated Conductivity Temperature meter Both the Actual TDS and the Actual Conductivity values must be in the same magnitude of units For example if the TDS value is in ppm the conductivity value must be in µS if the ...

Страница 53: ...re 1 Immerse the probe into a sample of your solution and adjust the temperature coefficient to 0 that is no compensation by following instructions as described in Section 6 5 Temperature Coefficient 2 Wait for 5 minutes Note T1 and CT1 conductivity at T1 3 Condition the sample solution and probe to a temperature T2 that is about 5 C to 10 C different from T1 and note the conductivity reading CT2 ...

Страница 54: ... coefficient of your solution according to the formula shown above 5 Enter the temperature coefficient you calculated into the meter Refer to Section 6 5 Temperature Coefficient The calculated temperature coefficient will not be applied to all the meter readings ...

Страница 55: ...e within the designated period please return freight pre paid and correction will be made without charge Eutech Instruments Oakton Instruments will determine if the product problem is due to deviations or customer misuse Out of warranty products will be repaired on a charged basis Exclusions The warranty on your instrument shall not apply to defects resulting from Improper or inadequate maintenanc...

Страница 56: ...the reason the items are to be returned For your protection items must be carefully packed to prevent damage in shipment and insured against possible damage or loss Eutech Instruments Oakton Instruments will not be responsible for damage resulting from careless or insufficient packing A restocking charge will be made on all unauthorized returns NOTE Eutech Instruments Pte Ltd Oakton Instruments re...

Страница 57: ...Instruction Manual CON 6 TDS 6 53 NOTES ...

Страница 58: ...website listed below Oakton Instruments P O Box 5136 Vernon Hills IL60061 USA Tel 1 888 462 5866 Fax 1 847 247 2984 E mail info 4oakton com Web site www 4oakton com Eutech Instruments Pte Ltd Blk 55 Ayer Rajah Crescent 04 16 24 Singapore 139949 Tel 65 6778 6876 Fax 65 6773 0836 E mail marketing eutechinst com Web site www eutechinst com Distributed by ...

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