Eutech Instruments CON 400, CON 410 User Manual

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Instruction Manual

CON 400 and CON 410

Waterproof Hand-held Conductivity/TDS Meter

Technolo

adeEa

68X248904

Rev 3 01/04

Preface

This manual serves to explain the use of the Waterproof CON 400/410 hand-held meters. It functions in two ways, firstly as a step by step guide to help you to operate the meter. Secondly, it serves as a handy reference guide. It is written to cover as many anticipated applications of the Waterproof CON 400/410 meters as possible. If there are doubts in the use of the meter, please do not hesitate to contact the nearest Authorised Distributor.

Eutech Instruments/ Oakton Instruments cannot accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument.

The information presented in this manual is subject to change without notice as improvements are made, and does not represent a commitment on the part of Eutech Instruments Pte Lt d/ Oakton Instruments.

TABLE OF CONTENTS

1 INTRODUCTION ..............................................................................................1

2 DISPLAY AND KEYPAD FUNCTIONS.............................................................2

2.1 DISPLAY ....................................................................................................................2

2.2 KEYPAD.....................................................................................................................3

3 PREPARATION................................................................................................4

3.1 INSERTING THE BATTERIES.........................................................................................4

3.2 CONDUCTIVITY ELECTRODE INFORMATION ..................................................................5

3.3 CONNECTING THE PROBE TO THE METER.....................................................................6

4 CALIBRATION..................................................................................................7

4.1 IMPORTANT INFORMATION ON METER CALIBRATION.....................................................7

4.2 PREPARING THE METER FOR CALIBRATION.................................................................. 8

4.3 TEMPERATURE CALIBRATION......................................................................................9

4.4 CONDUCTIVITY CALIBRATION .................................................................................... 10

4.5 TDS CALIBRATION...................................................................................................12

4.5.1 Calibrating for TDS directly ........................................................................... 12

4.5.2 Calibration with Conductivity Standard and TDS factor................................ 13

5 MEASUREMENT............................................................................................15

5.1 AUTOMATIC TEMPERATURE COMPENSATION .............................................................15

5.2 MANUAL TEMPERATURE COMPENSATION ..................................................................16

5.2.1 Selecting Manual Temperature Compensation.............................................16

5.2.2 Setting a manual temperature compensation value......................................17

5.3 TAKING MEASUREMENTS..........................................................................................18

5.4 USING MANUAL RANGING FUNCTION.........................................................................19

5.5 HOLD FUNCTION.....................................................................................................20

6 MEMORY AND DATA INPUT FUNCTIONS...................................................21

6.1 MEMORY INPUT........................................................................................................ 21

6.2 MEMORY RECALL.....................................................................................................22

7 ADVANCED SETUP FUNCTIONS.................................................................23

7.1 ADVANCED SETUP MODE OVERVIEW.......................................................................25

7.2 P 1.0: MEMORY CLEAR (CLR).................................................................................. 27

7.3 P2.0: VIEWING CALIBRATION DATA ............................................................................28

7.4 P3.0: VIEWING PROBE DATA .....................................................................................29

7.5 P4.0: UNIT CONFIGURATION .....................................................................................30

7.5.1 P4.1: READY indicator and auto endpoint function ......................................30

7.5.2 P4.2 Selecting

7.5.3 P4.3 Selecting Automatic or Manual Temperature Compensation.............. 32

7.5.4 P4.4 Setting the TDS factor .........................................................................33

7.6 P5.0 TEMPERATURE................................................................................................34

7.6.1 P5.1 Adjusting the temperature coefficient ..................................................34

7.6.2 P5.2 Adjusting the normalization temperature............................................. 35

7.7 P6.0 SELECTING THE CELL CONSTANT ......................................................................36

7.8 P7.0: SETTING THE REAL-TIME CLOCK.......................................................................37

7.9 P8.0: RESETTING TO FACTORY DEFAULT SETTINGS....................................................39

C or

F................................................................................. 31

8 PROBE CARE AND MAINTENANCE.............................................................40

9 TROUBLE SHOOTING GUIDE.......................................................................41

10 ERROR MESSAGES..................................................................................42

11 SPECIFICATIONS......................................................................................43

12 ACCESSORIES..........................................................................................44

13 ADDENDUM 1: CALIBRATION TIPS ........................................................45

14 ADDENDUM 2: CALCULATING TDS CONVERSION FACTORS..............46

14.1 “PREPARING YOUR OWN TDS CALIBRATION STANDARDS”........................................... 46

15 ADDENDUM 3: CALCULATING TEMPERATURE COEFFICIENTS..........47

16 ADDENDUM 4: METER FACTORY DEFAULT SETTINGS .......................48

17 WARRANTY ...............................................................................................49

18 RETURN OF ITEMS...................................................................................50

Instruction Manual CON 400/410

1 INTRODUCTION

Thank you for selecting the CON 400/410 waterproof portable meter. This meter is a microprocessor-based instrument that is designed to be user-friendly and allow one-hand operation. It has a built-in real time clock, expanded memory, and many other user-friendl y features, all of which are accessible through the membrane keypad. It is completely WATERPROOF --- and it FLOATS! You have one of the following models:

• CON 400 meter: reads conductivity and temperature.

• CON 410 meter: reads conductivity, TDS and temperature.

Your meter includes 4 ‘AAA’ batteries and a conductivity electrode (cell constant K = 1.0) with built-in temperature sensor. Please read this manual thoroughly before operating your meter.

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Instruction Manual CON 400/410

2 DISPLAY AND KEYPAD FUNCTIONS

2.1 Display

The LCD has a primary and secondary display.

• The primary display shows the measured conductivity or TDS reading.

• The secondary display shows the measured temperature.

The display also shows error messages, keypad functions and program functions. See Figure 1.

Primary Display

SETUP MEAS CAL MEM

READY HOLD ON OFF

K =

-8.8.8.8

MEM ERR

S ppt ppm

°C °F

-1.8.8.8

1. SETup mode indicator 8. parts per million indicator (CON

2. MEASurement mode indicator 9. Temperature indicator 16. Calibration solution indicator

3. CALibration indicator 10. Automatic Temperature

4. MEMory recall mode indicator 11. Clock indicator 18. ON / OFF indicator

5. millisiemens indicator 12. ERRor indicator 19. HOLD indicator

6. microsiemens indicator 13. MEMory location indicator 20. READY indicator

7. parts per thousand indicator (CON 410 meter only)

AM PM

131415

Figure 1: Full LCD Screen

410 meter only)

Compensation indicator

14. Low battery indicator

Secondary Display

ATC

1011

15. Probe indicator

17. Cell constant indicator

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Instruction Manual CON 400/410

2.2 Keypad

The large membrane keypad makes the instrument easy to use. Each button, when pressed, has a corresponding graphic indicator on the LCD. See Figure 2. Some buttons have several functions depending on its mode of operation.

Key Function

ON/OFF Powers on and shuts off the meter. When you switch on the meter, the meter starts up

HOLD Freezes th e m easured reading. To activate, press HOLD while in measurement mode.

MODE Selects the measurement parameter.

CAL/MEAS Toggles between Calibration and Measurement mode.

ENTER / RANGE

MI/S and MR/T

SETUP Takes you into the SETUP mode. This mode lets you customise meter preference and

in the mode that you last switched off from. For example, if you shut the meter off in TDS measurement mode (only in CON 410 meter), the meter will be in TDS measurement mode when you switch the meter on.

To release, press HOLD again.

~ CON 400 meter: Toggles between conductivity and time. ~ CON 410 meter: Toggles between conductivity, TDS and time.

NOTE: Temperature calibration is available from conductivity calibration mode; see page 9 for directions.

ENTER function: Press to confirm values in Calibration mode and to confirm selections in SETUP mode.

RANGE function: Press to enter manual ranging function. The MEAS indicator blinks while in manual ranging function.

In Measurement mode:

Press MI/S (memory input) to store values with its corresponding temperature values in the memory. Press MR/T (memory recall) to retrieve data from memory.

In Calibration mode:

Press to scroll through calibration values.

In SETUP mode:

Press to scroll through the setup subgroup programmes.

defaults, and view calibration, electrode offset data and select cell constant.

Figure 2 - Keypad

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Instruction Manual CON 400/410

3 PREPARATION

3.1 Inse rting the Batteries

Four AAA batteries are included with your meter.

1. Use a Philips screwdriver to remove the two screws holding the battery cover. See Figure

3 below.

2. Remove battery cover to expose batteries.

3. Insert batteries. Follow the diagram inside the cover for correct polarity.

4. Replace the battery cover into its original position using the two screws removed earlier.

Figure 3 - Back panel of meter showing meter compartment

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Instruction Manual CON 400/410

3.2 Conducti vity Electrode Information

The CON400/410 meter uses a conductivity / TDS cell with a sturdy 6-pin connector.

Your meter includes a conductivity probe (Part No: ECCONSEN91W / 35608-50) Ultem / Stainless Steel cells with a cell constant of K = 1.0. This conductivity / TDS cell features a built-in temperature sensor for Automatic Temperature Compensation (ATC). It has a specially designed housing that provides fast temperature response and reduces air bubble entrapment, which makes it easy to obtain accurate, stable readings.

Wetted parts include:

1. Polyetherimide (Ultem™)

2. Polybutylterphalate (Valox™)

3. Stainless Steel (SS 304)

NOTE: We recommend that you do not submerge the probe above the protective yellow cap for prolonged periods. The protective yellow cap can be removed for cleaning, but must be attached at all times during calibration or measurment.

See Section 8 on page 40 for “Probe Care and Maintenance” information.

Figure 4 - Conductivity probe

(EC-CONSEN91W/ 35608-50)

Valox and Ultem are trademark names of General Electric Co.

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Instruction Manual CON 400/410

3.3 Connecting the p robe to the meter

1. Line up the notch and 6 pins on the meter with the holes in the 6-pin connector. Push

down and turn the locking ring clockwise to lock into place. See figure below.

2. To remove probe, turn the locking ring counterclockwise on the probe connector. Pull

probe away from the meter.

CAUTION: Do not pull on the probe cord or the probe wires might disconnect. NOTE: Keep connectors clean. Do not touch connector with soiled hands.

Figure 5 - Connection for Conductivity probe (6-pin connector)

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Instruction Manual CON 400/410

4 CALIBRATION

4.1 Imp ortant Information on Meter Calibrat ion

Your meter has five measuring ranges. You can calibrate one point in each of the measuring ranges (up to five points). If you are measuring values in more than one range, make sure to calibrate each of the ranges you are measuring.

To view current calibration points, see SETUP section Program 2.0 on page 28.

The following table lists the corresponding conductivity and TDS ranges. You should calibrate each range using a solution that falls between the values in the “recommended calibration solution range” column.

Conductivity

Measuring

Range

0.00 Æ 19.99 µS 6.00 to 17.00 µS 0.00 Æ 9.99 ppm 3.00 to 8.50 ppm

0.0 Æ 199.9 µS 60.0 to 170.0 µS 10.0 Æ 99.9 ppm 30.0 to 85.0 ppm 0 Æ 1999 µS 600 to 1700 µS 100 Æ 999 ppm 300 to 850 ppm

0.00 Æ 19.99 mS 6.00 to 17.00 mS 1.00 Æ 9.99 ppt 3.00 to 8.50 ppt

0.0 Æ 199.9 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 by range basis. For example, if you previously calibrated your conductivity meter at 1413 µS in the 0 to 1999 µS range and you recalibrate at 1500 µS (also in the 0 to 1999 µS range), the meter will replace the old calibration data (1413 µS) in that range. The meter will retain all calibration data in other ranges.

To completely recalibrate your meter, or when you use a replacement probe, it is best to clear all calibration data in memory. To erase all the old conductivity and TDS calibration data completely from memory, see SETUP section Program 8.0 on page 39.

For information on how to calibrate your meter:

• See section 4.3 for Temperature Calibration.

• See section 4.4 for Conductivity

• See section 4.5 for TDS Calibration (CON 410 meter only).

• See Addendum 1 for more calibration tips.

Recommended

Calibration Solution

Range

TDS Measuring

Range

Recommended

Calibration Solution

Range

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Instruction Manual CON 400/410

4.2 Prep aring the Meter for Calib ration

Before starting calibration, make sure you are in the correct measurement mode. When you switch on the meter, the meter begins with the units you shut it off in.

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. For example, in the 0 to 1999 µS conductivity range, use a 1413 µS solution for calibration.

Do not reuse calibration solutions after calibration. Contaminants in the solution can affect the calibration, and eventually the accuracy of the measurements. Use fresh calibration solution each time you calibrate your meter.

NOTE: Your meter is factory set to a temperature coefficient of 2.1% per °C. For most

applications this will provide good results. See Program P5.1 on page 34 to set the temperature coefficient to different value. See Addendum 3, “Calculating Temperature Coefficients” to determine the appropriate temperature coefficient for your solution.

NOTE: The factory default value for normalization temperature is 25 °C. If you need to

normalize to a value other than 25 °C, see Program P5.2 on page 35.

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Instruction Manual CON 400/410

4.3 Te mperature Calibration

Your probe features a built-in temperature sensor. The temperature sensor is factory calibrated. Calibrate your sensor only if you suspect temperature errors that may have occurred over a long period of time or if you have a replacement probe.

Temperature Calibration

1. Make sure the cell is attached to the 6-pin connector. The ATC annunciator will appear at the right-hand side of the LCD*.

2. Switch the meter on. Press the MODE key to select conductivity or TDS mode.

3. Press the CAL/MEAS key to enter conductivity or TDS calibration mode. The CAL indicator appears above the primary display.

4. While in conductivity or TDS calibration mode, press the MODE key to enter temperature calibration mode. The primary display shows the current temperature reading and the secondary display shows the factory default temperature value.

5. Dip the cell into a solution of known temperature (i.e. A temperature bath). Allow time for the built-in temperature sensor to stabilise.

6. Scroll with the MI/S or MR/T keys to set the correct temperature value (i.e. the temperature of the temperature bath). You can adjust the reading in increments of 0.1 °C.

7. Once you have selected the correct temperature, press the ENTER key.

* If the ATC indicator does not light up, see Program P4.3 to switch it on.

NOTES:

• You can offset the temperature reading up to ±5°C from the original reading (default reading).

• To exit this program without confirming the temperature calibration value, DO NOT press ENTER. Press CAL/MEAS instead.

• If the ATC indicator does not light, see Prog ram P4.3, on page 32 to switch it on.

• Since temperature readings affect the accuracy of the conductivity/TDS measurements, it is strongly recommended to carry out a conductivity/TDS calibration after a temperature calibrati on is done.

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MEAS

1413

CAL

1413

22.3

22.0

MEAS

READY

1425

Figure 10 - Temperature

Calibration

22.3

CAL

22.3

CAL

22.3

22.0

°C ATC

°C

ATC

°C

ATC

°C ATC

Instruction Manual CON 400/410

4.4 Conductivity Calibration

The CON 400 and CON 410 meters are capable of up to 5-point conductivity calibration at one point per conductivity range (0.00 - 19.99 µS; 0.0 - 199.9 µS; 0 1999 µS; 0.00 - 19.99 mS; 0.0 - 199.9 mS).

All new calibration data will over-ride existing stored calibration data for each measuring range calibrated.

Calibrating for Conductivity:

1. If necessary, press the MODE key to select conductivity mode.

2. Rinse the probe thoroughly with de-ionized (DI) water or a rinse solution, then rinse with a small amount of calibration standard.

3. With the yellow probe guard attached, dip the probe into the calibration standard. Immerse the probe tip beyond the upper steel band. Stir the probe gently to create a homogeneous sample. Allow time for the reading to stabilizse. See Figure 7.

4. Press CAL/MEAS to enter conductivity calibration mode. The CAL indicator will appear in the upper right corner of the display.

5. Press the MI/S or MR/T key to change the value on the primary display to match the value of the calibration standard referenced to your normalisation temperature (usually 25°C).

6. Press ENTER to confirm calibration value. The meter returns to the MEAS (measurement) mode.

7. Repeat steps 1 to 6 for other measuring ranges.

See figure 6.

Figure 6 - Conductivity Calibration

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Instruction Manual CON 400/410

NOTES:

When entering calibration mode, the meter displays the factory default value. If the meter was previously calibrated, the display may seem to “jump” to the factory default value when switching from measurement to calibration mode. This is expected.

To exit from Conductivity calibration mode without confirming calibration, DO NOT press the ENTER key in step 6. Press CAL/MEAS instead. This will retain the

meter’s old calibration data in the measuring range of the calibration.

You can offset the conductivity reading up to ±40% from factory default value. If your measured value differs by more than ±40%, clean or replace probe if needed.

Figure 7 - Proper Immersion of

the conductivity probe

The minimum offset reading allowable is limited to 10% of full scale reading of the range you are working in. The maximum offset reading allowed is the range full scale reading

Eutech Instruments/ Oakton Instruments offers a wide selection of high-quality calibration standards. See page 44 for more information.

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Instruction Manual CON 400/410

4.5 TDS Calibration

4.5.1 Calibrating for TDS directly

For CON 410 meter only

The factory default setting for the TDS conversion factor is

0.50. If your solution has a different TDS factor, you can

improve calibration accuracy by setting the TDS factor prior to calibration. See page 33 for directions.

1. If necessary, press the MODE key to select TDS mode.

2. Rinse the probe thoroughly with DI water or a rinse solution, then rinse with a small amount of calibration standard.

4. Press CAL/MEAS to enter TDS calibration mode. The CAL indicator will appear in the upper right corner of the display.

5. Press the MI/S or MR/T to change the value on the primary display to match the value of the calibration standard referenced to your normalisation temperature (usually 25°C).

6. Press ENTER to confirm the calibration value. The meter returns to the MEAS (measurement) mode.

7. Repeat steps 1 to 6 for other measuring ranges.

NOTES

To exit from TDS Calibration mode without confirming calibration, DO NOT press the ENTER key in step 6. Press CAL/MEAS instead. This will retain the meter’s old calibration data in the measuring range of the calibration. You can offset the TDS reading up to ±40% from the default setting. If your measured value differs by more than ±40%, clean or replace probe as needed. The minimum offset reading allowable is limited to 10% of full scale reading of the range you are working in. The maximum offset reading allowed is the range full scale reading Eutech Instruments/ Oakton Instruments offer a wide selection of high-quality calibration standards. See page 44 for more information.

Figure 8 - TDS Calibration

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Instruction Manual CON 400/410

4.5.2 Calibration with Conductivity Standard and TDS factor

For CON 410 meter only

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 used by the meter to convert f rom conductivity to TDS.

Instead of calibrating for TDS directly (described in Section 4.5.1), you can calibrate the CON 410 meter by:

1. calibrating to conductivity standards (as described on pages 10 to 11) and then

2. entering the appropriate TDS conversion factor into the meter.

To determine the conductivity to TDS conversion factor for your solution:

• Addendum 2 explains the formula to calculate the conductivity-to-TDS

conversion factor.

Enter the TDS conversion factor into your meter as described under Section 7.5.4, in P4.4 Setting the TDS Factor on page 33.

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Instruction Manual CON 400/410

From measurement mode

1. Press Setup key to enter Set Up mode.

2. Press the S and T keys to scroll through subgroups until you view parameter P4.0.

SETUP

cof

p 4.0

See Figure 9.

3. Press the ENTER key again. The upper display shows a value and the lower display shows “tdS”.

4. Calculate the TDS factor of your solution. See

SETUP

ppt ppm

Addendum 2 on page 46 for information on how to calculate the TDS factor.

p 4.4

5. Press the S and T keys to select your calculated TDS

conversion factor.

6. Press the ENTER key to confirm selection and to return to the subgroup menu. Press the CAL/MEAS

SETUP

0.50

ppt ppm

key to return to measurement mode.

Figure 9 - TDS Conversion Factor

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Instruction Manual CON 400/410

5 MEASUREMENT

This meter is capable of taking measurements with automatic or manual temperature compensation. Factory default is set with automatic temperature compensation (ATC) on.

5.1 Automatic Temperature Compensation

For automatic temperature compensation (ATC) simply plug the conductivity/TDS probe into the meter (see page 6 for directions). The ATC indicator will light on the LCD.

NOTE: If the ATC indicator does not light, manual

temperature compensation may be selected in the meter’s SETUP mode. See Program P4.3 on page 32 for directions on selecting Automatic Temperature Compensation.

Figure 11 - ATC annunciator will

light up when connected to

temperature probe

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Instruction Manual CON 400/410

5.2 Manual Temperature Compensation

IMPORTANT: For manual compensation, you must deactivate the automatic temperature compensation feature.

5.2.1 Selecting Manual Temperature

Compensation

To select between Automatic Temperature Compensation (ATC) and Manual Temperature Compensation in the SETUP program P4.3. Meter default is ATC on.

P4.0 Configuration Setup

From measurement mode

1) Press SETUP key to enter Set Up mode.

2) Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P4.0.

3) Press the ENTER key three times to select parameter

4.3. The upper display shows “ATC” and the lower display shows “P4.3”.

4) Press the ENTER key again. The upper display shows “ATC” and the lower display shows “YES” or “NO”.

5) Press the MI/S or MR/T to select between Automatic or Manual Temperature Compensation feature.

• YES = Automatic Temperature Compensation

activated.

• NO = Manual Temperature Compensation

activated.

6) Press the ENTER key to confirm selection and to return to the subgroup menu. Press the CAL/MEAS key to return to measurement mode.

NOTE: Manual Temperature Compensation should only be selected if the ATC fails. For non-compensated measurements, change the temperature coefficient to

0.0% (see section 7.6.1)

Selecting Automatic or Manual

Temperature Compensation

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Instruction Manual CON 400/410

5.2.2 Setting a manual temperature compensation value

To use manual temperature compensation, you need to manually enter the temperature value of your process into the meter. You can select any temperature between 0 and 100 °C (32 to 212 °F). Default value is 25 °C.

To select a manual temperature compensation value

1. Switch the meter on. Press the MODE key to select measurement mode.

2. If necessary, select ATC off as described in section

5.2.1 on page 16. The ATC indicator will not appear on the display.

3. Press the CAL/MEAS key to enter conductivity or TDS calibration mode. The CAL indicator will appear above the primary display.

4. While in conductivity or TDS calibration mode, press the MODE key to enter temperature calibration mode. The primary display shows the current temperature setting and the secondary display shows the default value 25 °C (77 °F) or its last set value.

5. Check the temperature of your sample using an accurate thermometer.

6. Press the MI/S or MR/T keys to offset the temperature to the measured value from step 5.

7. Press ENTER to confirm the selected temperature and to return to the conductivity or TDS measurement mode.

The meter will now compensate conductivity or TDS readings for manually set temperature.

NOTES:

To exit this program without confirming the manual temperature compensation value, DO NOT press ENTER in step 7. Press CAL/MEAS instead.

Figure 9 - Manual Temperature

Compensation

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Instruction Manual CON 400/410

5.3 Taking Measurements

To take readings:

1. Rinse the probe with DI or distilled water before use to remove any impurities adhering to the probe body. Shake or air dry. To avoid contamination or dilution of your sample, rinse probe with a small volume of your sample liquid.

2. Press ON to switch on meter and the MEAS annunciator appears on the top center of the LCD.

3. Dip the probe into the sample.

When dipping the probe into the sample, take care to ensure that the liquid level is above its upper steel band. Stir the probe gently in the sa mple to create a homogenous sample.

4. Allow time for the reading to stabilise. Note the reading on the display.

5. CON 410 meter only

: Press the MODE key to toggle between conductivity and TDS

readings.

Taking measurements with READY indicator selected on

If the READY indicator has been activated, the READY annunciator lights when the reading is stable. Switch the READY indicator on or off in SETUP program P 4.1. See page 30 for

directions.

Taking measurements with the auto endpoint feature selected on

When a reading is stable for more than 5 seconds, the auto endpoint feature will automatically “hold” the reading. The “hold” indicator appears on the left side of the display. Press the HOLD key to release the reading. Switch the Auto endpoint feature on or off in SETUP program P 4.1, see page 30 for instructions.

Figure 10 - During measurement

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Instruction Manual CON 400/410

5.4 Using Manu al Ranging Function

Your meter automatically selects the range in which your readings appear. The manual ranging function lets you select the specific range (and corresponding resolution) that you want to work in:

CON 400 and CON 410 meters: CON 410 meter:

1. 0.00 --- 19.99 µS

2. 0.0 --- 199.9 µS

3. 0 --- 1999 µS

4. 0.00 --- 19.99 mS 4. 0.00 --- 9.99 ppt

5. 0.0 --- 199.9 mS 5. 0 --- 100 ppt

1. To select the desired measuring range, press the RANGE key while in Measurement mode. The first range will appear on the display and the “MEAS” indicator blinks.

2. Press the RANGE key again (if needed) until desired range is selected.

3. To re-select the Auto-ranging function, repeatedly press the RANGE key until the “MEAS” indicator appears without blinking.

NOTES

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.

1. 0.00 --- 9.99 ppm

2. 0.0 --- 99.9 ppm

3. 0 --- 999 ppm

(up to 199.9 ppt depending on TDS factor setting)

Figure 11 - Manual ranging

Figure 12 - Out-of-range

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.

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Instruction Manual CON 400/410

5.5 HOLD Function

This feature lets you freeze the display for a delayed observation. HOLD can be used any time in MEAS mode.

1. To hold a measurement, press the HOLD key while in measurement mode. “HOLD” 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 (without key press).

• If the meter is shut off either automatically or manually, the HOLD value will be lost.

For longer storage, use the memory functions (see pages 21-22).

• Your meter has an auto endpoin t feature. When this feature is switched on, and

when a reading is stable for more than 5 seconds, the display will automatically “HOLD” the reading. The “HOLD” indicator appears. Press the HOLD key to release the reading. To switch on or off the auto endpoint feature, see SETUP program P4.1 on page 30.

Figure 13 - HOLD function

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Instruction Manual CON 400/410

6 MEMORY AND DATA INPUT FUNCTIONS

6.1 Memory Input

Your meter stores up to 50 sets of data. Data sets include conductivity, temperature, date and time.

To store a reading:

1. During any measurement function (MEAS), press MI/S key to input any data into the memory.

2. MEM, “Sto” and memory number will flash. The meter then returns to measurement mode.

3. If necessary, measure the next sample solution and press MI/S key to input the next data into the memory.

See figure 14.

NOTE: If the memory is full, the first value stored will be

erased to create space for the new value.

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Figure 14 - Memory input

Instruction Manual CON 400/410

6.2 Memory Recall

This function recalls the previous readings stored in the memory. You can access MR from the measurement mode only. Memory recall is in "Last In First Out" order.

To recall readings:

1. Press the MR/T key once to retrieve the last reading stored. The memory location screen – MEM, “Loc” and the memory number – will flash on the display.

2. Press the ENTER key to recall the reading stored under that memory number.

3. Press ENTER key again to view the date and time the reading was taken.

4. Press ENTER key again to return to the "memory location" screen. The display automatically moves to the next memory location screen.

5. If necessary, press the MI/S or MR/T keys to select the next "memory location" screen; press the ENTER/RANGE key to select the previous "memory location" screen.

6. Repeat steps 2 - 5 to review additional stored data sets.

7. To exit Memory Recall, press MEAS key to return to Measurement mode.

NOTES:

Readings stored in memory are retained even if the units are turned off. To erase all readings stored in memory, use the SETUP mode P1.0 on page 27.

Figure 20 - Memory recall

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Instruction Manual CON 400/410

7 ADVANCED SETUP FUNCTIONS

The advanced setup mode lets you customised your meter’s preferences and defaults. The Waterproof CON400 / CON410 meters features different sub-groups that organise setup parameters. The sub-groups are:

1. P1.0: Memory clear (CLr)

2. P2.0: Viewing calibration data (CAL)

3. P3.0: Viewing electrode data (ELE)

4. P4.0: Unit configuration (COF)

5. P5.0: Temperature (tPr)

6. P6.0: Selecting cell constant (CEL)

7. P7.0: Setting clock (CLO)

8. P8.0: Reset to factory defaults (rSt)

See Figure 22 on next page.

- 23 -

Instruction Manual CON 400/410

Figure 22 - Overall view of SETUP programs

- 24 -

Instruction Manual CON 400/410

7.1 Ad vanced SETUP Mode Overview

Press the SETUP key to enter Set up mode. Press the MI/S or MR/T keys to scroll through sub groups. Press ENTER key to enter a particular parameter. See Addendum 4 on page 48 for a table of meter factory default settings.

P1.0: Memory clear

P1.0 Clear all stored readings

P2.0: Viewing previous calibration data

P2.1 First range calibration point P2.2 Second rang e cal ibration point P2.3 Third range cal ib ration point P2.4 Fourth range calibration point P2.5 Fifth range calibration point

P3.0: Viewing electrode data

P3.1 Effective cell constant for first range P3.2 Effective cell constant for second range P3.3 Effective cell constant for third range P3.4 Effective cell constant for fourth range P3.5 Effective cell constant for fifth range

P4.0: Unit configuration

P4.1 READY indicator and auto endpoint function –

select on or off P4.2 Select °C or °F P4.3 Select Automatic or Manual Temperature

Compensation P4.4 Setting TDS conversion factor (CON 410

meter only)

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Instruction Manual CON 400/410

P5.0: Temperature

P5.1 Adjusting temperature coefficient P5.2 Adjusting normalization temperature

P6.0: Selecting cell constant

P6.1 Selecting cell constant: K = 1.0, 10, or 0.1

P7.0: Setting Clock

• Setting Year

• Setting Date (month/day)

• Setting Time (hour / minute / second)

P8.0: Reset to factory defaults

P8.0 Reset meter to factory defaults

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Instruction Manual CON 400/410

7.2 P 1.0: Memory Clear (CLr)

Use this parameter to clear all stored memory values when you need to store a new series of values. This lets you avoid confusing the old values with the new ones. NO is the default setting.

Selecting YES will wipe out all memory.

NOTE:

From measurement mode:

1. Press the SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view the parameter P1.0.

3. Press the ENTER key to enter parameter P1.0.

4. Press the MI/S or MR/T keys to toggle between NO and YES. NO retains current memory; YES clears all memory. See Figure 23.

5. Press the ENTER key to confirm selection and return to the subgroup menu. Press CAL/MEAS key to return to measurement mode.

- 27 -

Figure 23 - P1.0: Memory Clear

Instruction Manual CON 400/410

7.3 P2.0: View ing calibration data

This mode lets you recall previous calibration data, which helps you know when to re-calibrate your meter. This is a “view only” mode. See Figure 24.

From measurement mode:

1. Press the SETUP key to enter Set up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P2.0.

3. Press ENTER key repeatedly to view previous calibration data. The meter will first display the calibration point, and then display the date and time of calibration to help you comply with the Good Laboratory Practice (GLP) standards.

4. When you have scrolled through all calibration data, you will automatically return to the subgroup menu. Press CAL/MEAS key to return to measurement mode.

NOTES:

If there is no previous calibration data at a particular point, the primary display will show “ ----“.

CON 410 meter only: If you entered Set Up mode from Conductivity measurement mode, calibration data will be in µS or mS. If you entered Set Up mode from TDS measurement mode, calibration data will be in ppm or ppt.

Figure 24 - View calibration data

and its relevant time and date

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Instruction Manual CON 400/410

7.4 P3.0: View ing probe data

Program 3 has five “view only” options that let you check the probe’s parameters for diagnostic purposes. These options show you the effective cell constant for each range. The cell constant is adjusted according to your calibration.

From measurement mode

1. Press the SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P3.0.

3. Press the ENTER key repeatedly to view the effective cell constant for each range.

4. When you have scrolled through all probe data, you will automatically return to the subgroup menu. Press the CAL/MEAS key to return to measurement mode.

See Figure 25.

NOTES:

Cell constants may degrade with time and usage. You can use this feature to alert you to the need for a new probe prior to total failure.

- 29 -

Figure 25 - View probe data for

each measurement range

Instruction Manual CON 400/410

7.5 P4.0: Unit configuration

7.5.1 P4.1: READY indicator and auto

endpoint function

Program P4.1 lets you select “READY indicator on” to indicate when your measurement is stable, or select “READY indicator off” for faster meter response.

Program P4.1 also lets you switch the Auto endpoint function on or off. Select auto endpoint on to “hold” your measurement when it is stable for more than 5 seconds. The display automatically freezes, and HOLD indicator appears on the left side of the display. Press the HOLD key to release the display and access other functions. Select auto endpoint off to deactivate this feature.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P4.0.

3. Press ENTER key to select parameter 4.1.

4. Press the MI/S or MR/T keys to select the configuration you require.

• OFF switches the READY indicator off; ON

switches the READY indicator on. ON and HOLD together switches the auto endpoint feature on.

5. Press ENTER key to confirm selection and to proceed to step 4 of P4.2. You can also press the CAL/MEAS key to return back to measurement mode.

NOTE: Meter default is set for Ready Indicator on, and auto endpoint function off.

Figure 26 - Configuring the

READY feature

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Instruction Manual CON 400/410

7.5.2 P4.2 Selecting °C or °F

You can select between °C and °F units for temperature readings. Meter default is °C.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P4.0.

3. Press the ENTER key two times to select parameter

4.2.

4. Press the MI/S or MR/T keys to toggle between °C and °F.

5. Press the ENTER key to confirm selection and to proceed to step 3 of P4.3. Press the CAL/MEAS key to return to measurement mode.

See Figure 27.

Figure 27 - Change Temperature

measurement unit

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Instruction Manual CON 400/410

7.5.3 P4.3 Selecting Automatic or Manual Temperature Compensation

This feature lets you select between Automatic Temperature Compensation (ATC) and Manual Temperature Compensation. Meter default is ATC activated.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P4.0.

3. Press the ENTER key three times to select parameter

4.3. The upper display shows “ATC” and the lower display shows “P4.3”.

4. Press the ENTER key again. The upper display shows “ATC” and the lower display shows “YES” or “NO”.

5. Press MI/S or MR/T keys to select Automatic or Manual Temperature Compensation.

• YES = Automatic Temperature Compensation

activated.

• NO = Manual Temperature Compensation

activated.

6. Press the ENTER key to confirm selection and to return to the subgroup menu. Press the CAL/MEAS key to return to measurement mode.

- 32 -

Figure 28 - Selecting Automatic or

Manual Temperature Compensation

Instruction Manual CON 400/410

7.5.4 P4.4 Setting the TDS factor

For CON 410 meter only

To determine the conductivity to TDS conversion factor for your solution:

Addendum 2 on page 46 explains the calculation in determining the conductivity to TDS conversion factor. You can set the TDS conversion factor between 0.40 and

1.00; meter default is 0.50.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P4.0.

3. Press the ENTER key five times to select parameter

4.4. The upper display shows “tdS” and the lower display shows “P4.4”.

4. Press the ENTER key again. The upper display shows a value and the lower display shows “tdS”.

5. Calculate the TDS factor of your solution. See Addendum 2 on page 46 for information on how to calculate the TDS factor.

6. Press the MI/S or MR/T keys to select your calculated TDS conversion factor.

7. Press the ENTER key to confirm selection and to return to the subgroup menu. Press the CAL/MEAS

key to return to measurement mode.

Figure 29 - Change of TDS factor

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Instruction Manual CON 400/410

7.6 P5.0 Temperature

7.6.1 P5.1 Adjusting the temperature coefficient

The temperature coefficient is the amount of change in conductivity 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

10.0 % per °C. Meter default is 2.1% per °C. Adjustment to 0.0% will not correct for

temperature effects so the displayed value will be the actual value at the displayed temperature.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P5.0.

3. Press the ENTER key to select parameter 5.1. The display shows “t.CO” on the upper display.

4. Press the ENTER key again. The upper display shows the temperature coefficient and the lower display shows “t.CO”.

5. Press the MI/S or MR/T keys to select the temperature coefficient of your solution.

6. Press the ENTER key to confirm selection and to proceed to step 3 of P5.2. Press the CAL/MEAS key twice to return to measurement mode.

NOTES:

If you do not know the temperature coefficient of your solution you can determine the correct value using the formula in Addendum 3 “Calculating Temperature Coefficients” on page 47.

•

- 34 -

Figure 30 - Changing the

temperature coefficient

Instruction Manual CON 400/410

7.6.2 P5.2 Adjusting the normalization temperature

Your meter will normalize its conductivity measurements to a standard temperature that you can select. You can adjust the normalization temperature from 15 to 30 °C (59 to 86 °F). Meter default is 25 °C (77 °F).

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P5.0.

3. Press the ENTER key three times to select parameter 5.2. The display shows “t.nr” on the upper display.

4. Press the ENTER key again. The upper display shows the normalisation temperature and the lower display shows “t.nr”.

5. Press the MI/S or MR/T keys to select the normalisation temperature.

6. Press the ENTER key to confirm selection and to return to the subgroup menu. Press CAL/MEAS key to return to measurement mode.

NOTE: Most calibration standards are referenced to 25°C. If a normalization temperature other than 25°C is entered, the calibration standard value at this temperature must be known.

- 35 -

Figure 31 - Adjusting the

normalization temperature

Instruction Manual CON 400/410

7.7 P6.0 Sele cting the cell constant

Your meter lets you select a cell constant of K = 1.0, 10, or 0.1. Use a cell of K = 1.0 for midrange measurements Use a cell of K = 10 for high range measurements (above 20 mS or 10 ppt). Use a cell of K = 0.1 for low range measurements (below 20 µS or 10 ppm). The cell included with your meter has a cell constant of K = 1.0.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P6.0.

3. Press the ENTER key to select parameter 6.1.

4. Press the MI/S or MR/T keys to select the cell constant between K = 1.0, 0.1, or 10.

5. Press the ENTER key to confirm selection and to return to the subgroup menu. Press the CAL/MEAS key to return to measurement mode.

NOTES

When using a cell of K = 0.1, the lowest measuring range will be: 0 to 1.999 µS (0 to 0.999 ppm). The 0 to 199.9 ms (10 to 200 ppt) range will not be accessible. When using a cell of K = 10, the highest measuring range will be: 0 to 1999 mS (100 to 2000 ppt). The 0 to 19.99 µS (0.00 to 9.99 ppm) range will not be accessible.

- 36 -

Figure 32 - Selecting cell constant

Instruction Manual CON 400/410

7.8 P7.0: Settin g the real-time clock

The meter features a real-time calendar and clock. This helps you to meet the Good Laboratory Practice (GLP) standards.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P7.0.

3. Press the ENTER key to enter parameter P7.0. The meter lets you select the century: “19—“ or “20—“. The century digits will flash.

4. Press the MI/S or MR/T keys to toggle to the correct century.

5. Press ENTER key to confirm the century and move to “year” selection. The “year” digits will flash.

6. Press the MI/S or MR/T keys to toggle to the correct year. See Figure 33.

7. Press ENTER key to confirm the year and move to “month” selection. The “month” digits will flash.

8. Press the MI/S or MR/T keys to toggle to the correct month.

9. Press the ENTER key to confirm the month and move to “date” selection. The “date” digits will flash. See Figure 33.

10. Press the MI/S or MR/T keys to toggle to the correct date.

11. Press the ENTER key to confirm the date and move to “hour” selection. The “hour” digits will flash. See Figure 34 (next page).

- 37 -

Figure 33 - P5.0: Setting century,

year, month and date

Instruction Manual CON 400/410

12. Press the MI/S or MR/T keys to toggle to the correct hour. Note the “AM” and “PM” indicator on the lower portion of the display.

13. Press the ENTER key to confirm the hour and move to “minute” selection. The “minute” digits will flash.

14. Press the MI/S or MR/T keys to toggle to the correct minutes.

15. Press the ENTER key to confirm the minutes and move to “second” digits will flash. See Figure 34.

16. Press the MI/S or MR/T keys to toggle to the correct seconds.

17. Press the ENTER key to confirm the seconds and return to “century” selection.

18. Press the CAL/MEAS key to return to the subgroup menu. Press the CAL/MEAS key again to return to measurement mode.

NOTES

Press the CAL/MEAS key at any point while setting the time to return to the subgroup menu.

Figure 34 - Selecting hour,

minutes and seconds

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Instruction Manual CON 400/410

7.9 P8.0: Re setting to factory default settings

Program 8.0 lets you reset all parameters to factory default settings. This clears all calibration data, memory, and any other setup functions you might have changed. It does not clear clock settings.

From measurement mode

1. Press SETUP key to enter Set Up mode.

2. Press the MI/S or MR/T keys to scroll through subgroups until you view parameter P8.0.

3. Press the ENTER key to enter parameter P8.0.

4. Press the MI/S or MR/T keys to toggle between NO and YES. NO retains current settings; YES resets to factory default settings.

5. Press the ENTER key to confirm selection and to return to the measurement mode. Otherwise press CAL/MEAS key to return to measurement mode without resetting to factory default.

See Figure 35.

NOTES:

See Addendum 4 on page 48 for a table of factory default settings.

Figure 35 - P6.0: Reset to

factory default values

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Instruction Manual CON 400/410

8 PROBE CARE AND MAINTENANCE

Keep the conductivity probe clean. Rinse the probe twice, and gently swirl it while you take readings. Rinse the probe with DI or clean water before storing. Never scratch the bands with a hard substance. Do not strike the probe against any hard surface.

Do not immerse the probe in oily solutions. Clean the electrode thoroughly by stirring it in a mild detergent bath or isopropyl alcohol if needed. Wipe the probe with a soft tissue paper. Rinse thoroughly in tap water and then in DI water. Recalibrate the meter after cleaning the probe.

The conductivity probe (Order Part No. EC-CONSEN91W/ 35608-50) which is included with your meter features a removable probe guard to make cleaning easy.

NOTE: The yellow probe guard must be attached during measurement and calibration. Readings are unstable and not accurate without this guard in place.

To remove probe guard for cleaning:

1. Grip yellow probe guard and twist clockwise. The locking notch will release.

2. Slide probe guard off end of probe.

Figure 36 - Conductivity probe

(EC-CONSEN91W/ 35608-50)

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Instruction Manual CON 400/410

9 TROUBLE SHOOTING GUIDE

Problem Cause Solution

No display when turned ON

Unstable readings a) Air bubbles in probe.

Slow response a) Dirty / Oily probe. a) Clean probe. See “Probe

a) Batteries not in place or

battery housing is not attached to meter correctly

b) Batteries not in correct

polarity (+ and – position).

c) Weak batteries

b) Dirty probe. c) Probe not deep enough in

sample.

d) External noise pickup or

induction caused by nearby

electric motor. e) Broken probe. f) probe guard not in place

a) Check that batteries are in

place and making good contact.

b) Re-insert batteries with

correct polarity.

c) Replace batteries. 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. f) Attach probe guard

Care & Maintenance”, page

40.

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Instruction Manual CON 400/410

10 ERROR MESSAGES

LCD Display Indicates Cause Solution

Err annunciator Unrecognised input

CAL & Err annunciators on / Buffer and electrode indicators blink.

Battery indicator blinks

Err 1 (in primary display)

Err. 2 (in primary display)

Err. 3 (in primary display)

Err. 4 (in primary display)

from keypad

Calibration error. Wrong value input at

Low battery level. Need new batteries or

Memory write error. Hardware failure. Turn meter on and off

Memory checksum error.

A/D converter error. Hardware error. Turn meter on and off

Keypad error. One or more keys on

* See “Warranty” and “Return of Items” on pages 49 and 50. If an error message appears in the primary display (the upper row of larger digits), switching off the meter and switching it on again may eliminate the error message. Refer to diagram on right.

If error persists, or the meter shows incorrect values, return the meter. For a complete diagram of the display see page 2.

Wrong input in selected mode.

calibration. Dirty probe.

battery connection is bad.

Hardware failure. Turn meter on and off

the keypad are stuck or fault in keypad.

Release key. Select valid operations depending on mode.

Check your input value, clean probe.

See Calibration sections or Probe Maintenance section.

Clean battery contacts. Replace batteries with fresh ones, noting polarity.

again. If message persists, return unit*.

Turn meter on and off again. If message persists, return unit*.

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Instruction Manual CON 400/410

11 SPECIFICATIONS

SPECIFICATIONS DESCRIPTIONS CON 400 CON 410

Conductivity Range

TDS Range Resolution 0.05 % Full Scale • •

Accuracy ±1% F.S. ±1 digit • • Temperature Range

Resolution

Accuracy Cell Constant 0.1, 1.0, 10.0 (selectable) • • Temperature Compensation Automatic / Manual (from 0 to 80 ° C) • • Temperature Coefficient 0.0 to 10.0% / ° C • • Normalization Temperature 15.0 to 30.0 ° C (adjustable) • • Conductivity to TDS

Conversion factor Number of calibration points 5: Maximum 1 per range • • Auto-ranging Yes (manual select available) • • HOLD Function Yes • • Memory Yes 50 50 Auto Power off 20 minutes after last key operation • • Averaging/Stability

(READY)/Auto-hold Inputs 6-pin round connector • • Display Custom Dual LCD • • Power Requirements 4 ‘AAA’ Batteries • • Battery Life > 100 hours • •

Dimension / Weight

0 to 19.99, 199.9, 1999 µS/cm;

0 to 19.99, 199.9 mS/cm

0.00 to 9.99, 0.0 to 99.9, 0 to 999 ppm;

0.00 to 9.99ppt, 0.0 to 199.9 ppt

0.0 to 100.0 °C

(32.0 to 212 °F)

0.1 °C

(0.1 from 32 °F to 199.9 °F

and 1.0 from 200 °F to 212 °F)

± 0.5 °C (± 0.9 °F)

0.40 to 1.00

Selectable

Meter: 19 x 10 x 6 cm; 320 g

Boxed: 24 x 23 x 7 cm; 700 g

• •

•

• •

•

• •

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Instruction Manual CON 400/410

12 ACCESSORIES

Replacement Meter and Meter accessories

Description

Waterproof CON 400 Hand-held conductivity meter complete with conductivity probe of k=1.0 (ECCONSEN91W).

Waterproof CON 400 Hand-held conductivity meter complete with conductivity probe of k=1.0 (ECCONSEN91W) packed in hard plastic carrying case

Waterproof CON 410 Hand-held conductivity/TDS meter complete with conductivity/temp probe with k=1.0 (EC-CONSEN91W).

Waterproof CON 410 Hand-held conductivity/TDS meter complete with conductivity/temp probe with k=1.0 (EC-CONSEN91W). packed in hard plastic carry case

Ultem body conductivity/temp probe for CON 400 series meters, k= 1.0, 16 X 110 mm, 1-m cable

Ultem body conductivity/temp probe for CON 400 series meters, k= 1.0, 16 X 110 mm, 5-m cable

Epoxy body conductivity/temp probe for CON 400 series meters, k= 0.1, 12 X 110 mm, 1-m cable

Epoxy body conductivity/temp probe for CON 400 series meters, k= 10.0, 12 X 110 mm, 1-m cable

Hard carrying case WPDRYKIT 35632-98

Eutech Instruments

Ordering Code

EC-CONWP400/03 35608-00

EC-CONWP410/03K -

EC-CONWP410/03 35608-10

EC-CONWP410/03K -

EC-CONSEN91W 35608-50

- 35608-57

EC-CONSEN72W 35608-55

EC-CONSEN73W 35608-51

Oakton Instruments

Ordering Code

Calibration Solutions

Calibration standard solutions referenced to 25°C

10 µS single use pouches 20 mL x 20 pcs 447 µS single use pouches 20 mL x 20 pcs 1413 µS 480-mL bottle (1 pint) EC-CON-1413BT 00653-18

1413 µS single use pouches 20 mL x 20 pcs 2764 µS 480-mL bottle (1 pint) EC-CON-2764BT 00653-20

12.88 mS 480-mL bottle (1 pint) EC-CON-1288BT 00606-10

15.00 mS 480-mL bottle (1 pint) - 35653-13

Eutech Instruments

Ordering Code

EC-CON-10BS

EC-CON-447BS 35653-10

EC-CON-1413BS 35653-11

Oakton Instruments

Ordering Code

35653-09

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Instruction Manual CON 400/410

13 ADDENDUM 1: CALIBRATION TIPS

You only need one calibration for measurement throughout the entire range of the meter. If a range was not calibrated, the meter automatically detects the closest range calibrated and uses that calibration information. However, only the ranges that were calibrated have maximum accuracy.

• If you are measuring in ranges near to or greater than 20 mS (10 ppt), or near to or lower than 100 µS (50 ppm), calibrate the meter at least once a week to get 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 conductivity / TDS / temperature probe specified for these meters. These probes have a built-in temperature sensor. If you use a different probe without a temperature sensor, you must measure the solution temperature separately and manually enter the solution temperature (see manual temperature compensation section on pages 1617 ).

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Instruction Manual CON 400/410

14 ADDENDUM 2: CALCULATING TDS CONVERSION

FACTORS

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 ÷ Actual Conductivity @ 25 °C

Definitions:

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 TDS value is in ppt the conductivity value must be in mS.

Check your factor by multiplying the conductivity reading by the factor in the above formula. The result should be in TDS value.

• 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.

14.1 “Preparing your ow n TDS calibration standards”.

If you are trying to measure a concentration of a fertilizer, sea salt, or other sample that uses multiple salts that may not be relevant to commercially available KCl based standards, it may be desirable to prepare your own TDS standards.

Since ppm is expressed as milligrams per Liter, the preparation is relatively simple with an analytical balance. One gram of water = 1 mL = 1 cubic centimeter.

To prepare a TDS calibration standard of 750 ppm, weigh out 750 milligrams (0.75 grams) of your salt or fertilizer and dissolve into 1000 grams (1 liter) of purified water

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Instruction Manual CON 400/410

15 ADDENDUM 3: CALCULATING TEMPERATURE

COEFFICIENTS

To determine the temperature coefficient of your sample solution use this formula:

Where:

tc = Temperature coefficient 25 = 25 °C

= Conductivity at Temp 1 CT2 = Conductivity at Temp 2

= Temp 1 T2 = Temp 2

NOTE: A controlled temperature water bath is ideal for this procedure.

1. Immerse the probe into a sample of your solution and adjust the temperature coefficient to 0% (that is, no compensation) by performing the following: A. From measurement mode, press the SETUP key to enter Setup mode. B. Press the MI/S or MR/T key until the lower display reads P5.0. C. Press the ENTER key twice. The lower display reads tCO and the upper display

shows the temperature coefficient value. D. Press the MR/T key until the upper display shows 0.0. E. Press ENTER key to confirm the value. F. Press CA/MEAS key twice to return to measurement mode.

2. Wait for 5 minutes. Note T

3. Condition the sample solution and probe to a temperature (T different from T

, and note the conductivity reading CT2.

and CT1 (conductivity at T1).

) that is about 5 °C to 10 °C

NOTE: Record your results for future reference. Ideally T

and T2 should bracket your

measurement temperature, and should not different by more than 5 °C.

4. Calculate the temperature coefficient of your solution according to the formula shown above.

5. Enter the temperature coefficient you calculated into the meter. A. From measurement mode, press the SETUP key to enter Setup mode. B. Press the MR/T key until the lower display reads P5.0. C. Press the ENTER key twice. The lower display reads tCO and the upper display

shows the temperature coefficient value (should be 0, as per step 1 above).

D. Press the MI/S key until the upper display shows your calculated temperature

coefficient. E. Press ENTER key to confirm the value. F. Press CAL/MEAS key twice to return to measurement mode.

The calculated temperature coefficient will not be applied to all the meter readings.

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Instruction Manual CON 400/410

16 ADDENDUM 4: METER FACTORY DEFAULT

SETTINGS

Type Parameter Default Remarks

P1.0 Memory clear No Retains current memory P2.1 Viewing previous –– No calibration data for 1st range P2.2 calibration data –– No calibration data for 2nd range P2.3 –– No calibration data for 3rd range P2.4 –– No calibration data for 4th range P2.5 –– No calibration data for 5th range P3.1 Viewing probe data 1.0 No offset for effective cell constant (1st range) P3.2 1.0 No offset for effective cell constant (2nd range) P3.3 1.0 No offset for effective cell constant (3rd range) P3.4 1.0 No offset for effective cell constant (4th range) P3.5 1.0 No offset for effective cell constant (5th range) P4.1 Ready indicator / auto

endpoint P4.2 Select °C/°F °C Degrees Celsius P4.3 ATC on or off ATC on –– P4.4 TDS factor 0.50 Adjustable from 0.40 to 1.00 (available in TDS

P5.1 Temperature coefficient 2.1 % per ° C Adjustable from 0.0 to 10%

P5.2 Normalisation temperature 25° C Adjustable from 15 to 30° C P6.1 Cell constant 1.0 Select from k=1.0, 0.1 or 10 P8.0 Factory default No Retains your current settings

NOTES:

The P7.0 clock function retains the year and time that you set, even after reverting to factor y default settings.

READY/ON Ready indicator on; auto endpoint off

400 and CON 410 meters only)

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Instruction Manual CON 400/410

17 WARRANTY

This meter is supplied with a three -year warranty, six-month warranty for probe against significant deviations in material and workmanship. 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/ 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 maintena nce by customer  Unauthorised modification or misuse  Operation outside of the environment specifications of the products

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Instruction Manual CON 400/410

18 RETURN OF ITEMS

Authorisation must be obtained from our Customer Service Department or authorised distributor before returning items for any reason. A “Return Goods Authorisation” (RGA) form is available through our authorised distributor. Please include data regarding 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 unauthorised returns. NOTE: Eutech Instruments Pte Ltd/ Oakton Instruments reserves the right to make improvements in design, construction, and appearance of products without notice.

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NOTES

For more information on Eutech Instruments/ Oakton Instruments’ products, contact your nearest distributor or visit our website listed below:

Oakton Instruments

P.O Box 5136, Vernon Hills, IL 60061, USA Tel: (1) 888-462-5866 Fax: (1) 847-247-2984 E-mail: info@4oakton.com Web-sites:

www.4oakton.com www.oaktoninstruments.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

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Eutech Instruments CON 400, CON 410 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual