EUTECH INSTRUMENTS COND 6 PLUS Instruction Manual
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EUTECH INSTRUMENTS COND 6 PLUS Instruction Manual

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Instruction Manual
Cond 6+
Conductivity/Temp
TDS 6+
TDS/Temp
Salt 6+
Salinity/Temp
68X243635
Rev 0 02/09
Technology Made Easy ...
Part of Thermo Fisher Scientific

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Summary of Contents for EUTECH INSTRUMENTS COND 6 PLUS

  • Page 1 Instruction Manual Cond 6+ Conductivity/Temp TDS 6+ TDS/Temp Salt 6+ Salinity/Temp 68X243635 Rev 0 02/09 Technology Made Easy ... Part of Thermo Fisher Scientific...
  • Page 3 Eutech Instruments Authorized Distributor. Eutech 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 improvements are made, and does not represent a commitment on the part of Eutech Instruments Pte Ltd.

  • Page 4: Table Of Contents

    Table of Contents INTRODUCTION................1 GETTING STARTED..............2 Description of Keypad Functions ..............2 Description of LCD Annunciators..............3 Inserting & Removing the Rubber Armour / Stand........4 Inserting New Batteries ................4 Battery Replacement...................5 Electrode Information ..................5 Connecting the Electrode ................6 Switching the Meter On ................7 Changing Mode ...................8 CALIBRATION................9 Important Information on Meter Calibration ..........9...
  • Page 5 10. CALIBRATION TIPS..............29 11. CALCULATING TDS CONVERSION FACTOR ......30 12. CALCULATING TEMPERATURE COEFFICIENTS ....31 13. REPLACEMENTS AND ACCESSORIES ........32 14. WARRANTY ................33 15. RETURN OF ITEMS ..............33...

  • Page 6: Introduction

    Instruction Manual COND 6+, TDS 6+, SALT 6+ 1. INTRODUCTION Thank you for purchasing the COND 6+, TDS 6+, or SALT 6+ meter. These microprocessor-based handheld meters are economical and easy to use. It has a large custom LCD (Liquid Crystal Display) for clear and easy reading. The Cond 6+ measures conductivity (µS/cm or mS/cm) and temperature (°C) while the TDS 6+ measures total dissolved solids (TDS) in parts per million (ppm) or parts per thousand (ppt) and temperature (°C).

  • Page 7: Getting Started

    Instruction Manual COND 6+, TDS 6+, SALT 6+ 2. GETTING STARTED Description of Keypad Functions Your meter has 6 keys on its splash-proof keypad. Some buttons have multiple functions depending on the mode of operation. ON/OFF Powers meter on and off. Meter starts up in the measurement mode that you last switched off from.

  • Page 8: Description Of Lcd Annunciators

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Description of LCD Annunciators Your meter has a large custom LCD that consists of 4-digit segments plus annunciators for uS/mS (Cond 6+), ppm/ppt (TDS 6+), or ppt/% (Salt 6+) and °C (temperature). HO LO °...

  • Page 9: Inserting & Removing The Rubber Armour / Stand

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Inserting & Removing the Rubber Armour / Stand 1. To remove meter from rubber armour, push out from the bottom edges of meter until it is completely out of boot. Ensure that your electrode cables are not connected. Figure A.

  • Page 10: Battery Replacement

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Battery Replacement A “LO” annunciator in the LCD alerts you when battery power is running low. See below. µ "LO" Battery Condition Caution: Power off the meter when changing battery. Electrode Information Your meter includes an electrode with a BNC connector (EC- CONSEN91B) having a nominal cell constant of k = 1.0, and a built-in temperature sensor.

  • Page 11: Connecting The Electrode

    Instruction Manual COND 6+, TDS 6+, SALT 6+ DO NOT measure or calibrate without the protective probe guard in place. Immersion above the protective guard is not recommended. The cable can be submerged briefly but is not designed for continuous immersion. See “Probe Care and Maintenance”...

  • Page 12: Switching The Meter On

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Switching the Meter On Press ON/OFF to power up your meter. Your meter will cycle through various setup parameters when switched on. The first screen shows the model [Con6] [tdS6] [SAL6]. The second screen shows the nominal cell constant value. The Cond 6+ and TDS 6+ meters can accept electrodes with k = 0.1, 1.0 or 10.0 nominal cell constants.

  • Page 13: Changing Mode

    Instruction Manual COND 6+, TDS 6+, SALT 6+ TDS 6+ ° pptm pH % ° ° µ pptmV Measurement Mode Salt 6+ ° pH % ° ° µ pptmV Measurement Mode (when probe is held in air) Changing Mode To switch between conductivity/TDS/salinity measurement mode and temperature measurement mode, simply press the MODE key.

  • Page 14: Calibration

    Instruction Manual COND 6+, TDS 6+, SALT 6+ 3. CALIBRATION Important Information on Meter Calibration The COND 6+ and TDS 6+ have five measuring ranges listed below. Each range can be calibrated to one point per range (five total points if each range is calibrated). Calibration is recommended for each range that will be utilized.

  • Page 15: Preparing The Meter For Calibration

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Preparing the Meter for Calibration For best results, select a standard value close to the sample value you are measuring. Alternatively, use a calibration solution value that is approximately 2/3 the full-scale value of the measurement range you plan to use.

  • Page 16: Using Automatic Calibration (Cond 6+)

    Instruction Manual COND 6+, TDS 6+, SALT 6+ With manual calibration, you are not limited to the calibration standard values listed previously. Manual calibration is useful when you wish to use one or more standard values that are not listed above. See Section 5.3 Advanced Setup to modify automatic or manual calibration.
  • Page 17 Instruction Manual COND 6+, TDS 6+, SALT 6+ NOTES: To protect from erroneous calibrations, the allowable tolerance is ±40% of the factory default value. If calibration is attempted with standards that fall outside this tolerance range, the error message “Err 1” is indicated and meter will return to measurement mode.

  • Page 18: Manual Calibration

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Manual Calibration In Manual Calibration mode you are not limited to the conductivity calibration standards listed previously in Table 1. This example shows a manual calibration sequence using a 12.00 mS/cm conductivity calibration standard. If necessary, press MODE key to select conductivity Measurement Mode mode.

  • Page 19: Temperature Calibration

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Temperature Calibration The electrode includes a built-in temperature sensor that ° is factory calibrated with the meter. Perform temperature calibration only if you suspect temperature errors may have occurred over time or when the probe is replaced. You can offset the temperature reading up to ±5 °C from the original (default) reading.

  • Page 20: Measurement

    Instruction Manual COND 6+, TDS 6+, SALT 6+ 4. MEASUREMENT Your meter is capable of taking measurements that incorporate temperature measurements automatically (most common) or using a temperature which you input manually (rare). With Automatic Temperature Compensation (ATC) To compensate your reading using temperature values as measured by your electrode, simply attach the phono plug of the electrode to the meter.

  • Page 21: Taking Measurements

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Taking Measurements Rinse the electrode with de-ionized or distilled water before use to remove any impurities. Shake or air dry. To avoid contamination or sample dilution, rinse probe with a small volume of your sample. Dip the probe into the sample.
  • Page 22 Instruction Manual COND 6+, TDS 6+, SALT 6+ Auto-ranging Manual ranging: 0 - 20.00 uS/cm Manual ranging: 0 - 200.0 uS/cm µ µ µ µ Manual ranging: 0 - 200.0 mS/cm Manual ranging: 0 - 20.00 mS/cm Manual ranging: 0 - 2000 uS/cm NOTE: If the value of the solution you are measuring is higher than the range selected [Or] (over range) will appear.

  • Page 23: Hold Function

    Instruction Manual COND 6+, TDS 6+, SALT 6+ HOLD Function For prolonged observation of a reading, press HOLD while in measurement mode to freeze the display. µ To hold a measurement, press HOLD while in HOLD measurement mode. [HO] will appear on the ENTER display.
  • Page 24 Instruction Manual COND 6+, TDS 6+, SALT 6+ Entering Advanced Setup Mode Cell Constant. Select k = 0.1, 1.0, or 10.0. Default value is 1.0. (COND 6+, TDS 6+ only) Select Automatic Calibration. “Yes” for auto calibration and “No” for manual calibration. Default value is “Yes”.

  • Page 25: Select Cell Constant (Cond 6+, Tds 6+ Only)

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Select Cell Constant (COND 6+, TDS 6+ only) Your meter includes a probe with a nominal cell constant (k) of 1.0. Use probes with k = 0.1 and 10 (sold separately) for improved performance in extreme samples. Use this setup function to change the cell constant if necessary.

  • Page 26: Setting The Tds Factor (Tds 6+ Only)

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Setting the TDS Factor (TDS 6+ only) The concentration of salts dissolved in solution increases the conductivity. This relationship varies from salt to salt and is roughly linear over a given range for a given salt.

  • Page 27: Normalization Temperature

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Normalization Temperature You can set the meter to normalize its measurements to a temperature of either 25 °C or 20 °C. Default value is 25 °C. ° Enter advanced setup as described in Section 5.1.

  • Page 28: Restore Factory Default Values

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Restore Factory Default Values Use this function to reset all parameters to factory default settings. This clears all calibration data and any other setup functions you might have changed. IMPORTANT: Once activated the settings and calibration data will be erased and can not be undone.

  • Page 29: Troubleshooting

    Instruction Manual COND 6+, TDS 6+, SALT 6+ TROUBLESHOOTING Problem Cause Solution Batteries are not installed, Install batteries with correct + / - No display were improperly installed, or polarity. Replace with new are too weak batteries “LO” displays in Low battery Replace batteries the LCD...

  • Page 30: Specifications / Features

    Instruction Manual COND 6+, TDS 6+, SALT 6+ SPECIFICATIONS / FEATURES COND 6+ TDS 6+ SALT 6+ 0 to 20.00 (0.01) µS/cm 20.0 to 200.0 (0.1) µS/cm Conductivity Ranges 200 to 2000 (1) µS/cm (Resolution) 2.01 to 20.00 (0.01) mS/cm 20.1 to 200.0 (0.1) mS/cm 0 to 10.00 (0.01) ppm 10.0 to 100.0 (0.1) ppm...
  • Page 31 Instruction Manual COND 6+, TDS 6+, SALT 6+ FEATURES Auto-Buffer Recognition Yes (COND 6+) Hold Function Yes “HO” Low Battery Indicator Yes “LO” Salinity Conversion Factor Non-linear Compensation (SALT 6+) Auto Shut Off 20 minutes after last key operation Display Custom LCD 0 to 50 °C Operating Temperature...

  • Page 32: Conductivity Theory

    Instruction Manual COND 6+, TDS 6+, SALT 6+ 9. CONDUCTIVITY THEORY Conductance is a quantity associated with the ability of primarily aqueous solutions to carry an electrical current, I, between two metallic electrodes when a voltage E is connected to them. Though water itself is a rather poor conductor of electricity, the presence of ions in the water increases its conductance considerably, the current being carried by the migration of the dissolved ions.
  • Page 33 Instruction Manual COND 6+, TDS 6+, SALT 6+ Thus derives the term specific conductance or conductivity. The relationship between conductance and specific conductivity is: Specific Conductivity, S.C. = (Conductance) (cell constant, k) = siemens * cm/cm = siemens/cm where C is the conductance (siemens) k is the cell constant, length/area or cm/cm Since the basic unit of electrical resistance is the ohm, and conductance is the reciprocal of resistance, the basic unit of conductance was originally designated a “mho”...

  • Page 34: Calibration Tips

    Instruction Manual COND 6+, TDS 6+, SALT 6+ Conductivity and Temperature Conductivity in aqueous solutions reflects the concentration, mobility, and charge of the ions in solution. The conductivity of a solution will increase with increasing temperature, as many phenomena influencing conductivity such as solution viscosity are affected by temperature.

  • Page 35: Calculating Tds Conversion Factor

    Instruction Manual COND 6+, TDS 6+, SALT 6+ 11. CALCULATING TDS CONVERSION FACTOR You can calibrate your meter using TDS calibration standard solutions. The calibration standard only needs to give the TDS value at a standard temperature such as 25 °C. To determine the conductivity-to-TDS conversion factor use the following formula: Factor = Actual TDS ÷...

  • Page 36: Calculating Temperature Coefficients

    Instruction Manual COND 6+, TDS 6+, SALT 6+ CALCULATING TEMPERATURE COEFFICIENTS To determine the temperature coefficient of your sample solution use this formula: Where: = Temperature coefficient 25 = 25 °C = Conductivity at Temp 1 = Conductivity at Temp 2 = Temp 1 = Temp 2 NOTE: A controlled temperature water bath is ideal for this procedure.

  • Page 37: Replacements And Accessories

    Instruction Manual COND 6+, TDS 6+, SALT 6+ REPLACEMENTS AND ACCESSORIES Description Ordering Code COND 6+ meter with probe. ECCON603PLUS COND 6+ kit. Meter and probe in hard carry case with bottles ECCON603PLUSK of 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, and rinse. TDS 6+ meter only and probe.

  • Page 38: Warranty

    If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return – freight pre-paid – and correction will be made without charge. Eutech Instruments will determine if the product problem is due to deviations or customer misuse.
  • Page 40 For more information on Eutech Instruments products, contact your nearest distributor or visit our website listed below: Distributed by: Eutech Instruments Pte Ltd. Blk 55, Ayer Rajah Crescent, #04-16/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0836 E-mail: eutech@thermofisher.com...

This manual is also suitable for:

Salt 6+Tds 6 plusCond 6+Tds 6+

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