Oakton CON 6 Manuale utente

Technolo

ade

Instruction Manual

CON 6/TDS 6

Hand-held Conductivity/TDS Meter

68X243618

ver. 0 11/02

Preface

This manual serves to explain the use of the Conductivity and TDS handheld

meters. The models covered are the CON 6 and TDS 6.

This manual functions in two ways: first as a step by step guide to help you

operate the meter; second, it serves as a handy reference guide.

This manual is written to cover as many anticipated applications of the

Conductivity and TDS handheld meters as possible. If there are doubts 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 improvements are made, and does not represent a commitment on the part

of Eutech Instruments Pte Ltd/ Oakton Instruments.

Eutech Instruments Pte Ltd/ Oakton Instruments

TABLE OF CONTENTS

INTRODUCTION 1

DISPLAY & KEYPAD FUNCTIONS 3

2.1

DISPLAY 3

2.2

KEYPAD 4

PREPARATION 5

3.1

INSERTING & REMOVING RUBBER BOOT 5

3.2

INSERTING THE BATTERIES 5

3.3

BATTERY REPLACEMENT 6

3.4

CONDUCTIVITY ELECTRODE INFORMATION 7

3.5

CONNECTING THE PROBE TO METER 9

3.6

SWITCHING THE METER ON 10

3.7

CHANGE CONDUCTIVITY/ TDS Ù

TEMPERATURE MEASUREMENT MODE 12

CALIBRATION 13

4.1

IMPORTANT INFORMATION ON METER CALIBRATION 13

4.2

PREPARING THE METER FOR CALIBRATION 14

4.3

SELECTION OF AUTOMATIC OR MANUAL CALIBRATION 15

4.4

AUTOMATIC CALIBRATION (CONDUCTIVITY) 16

4.5

MANUAL CALIBRATION (CONDUCTIVITY OR TDS) 18

4.6

TEMPERATURE CALIBRATION 19

MEASUREMENT 20

5.1

WITH AUTOMATIC TEMPERATURE COMPENSATION (ATC) 20

5.2

WITHOUT ATC (MANUAL TEMPERATURE COMPENSATION) 21

5.3

TAKING MEASUREMENTS 22

5.4

USING MANUAL RANGING FUNCTION 22

5.5

HOLD FUNCTION 24

ADVANCED SETUP FUNCTIONS 25

6.1

ADVANCED SETUP OVERVIEW 25

6.2

SELECT CELL CONSTANT 29

6.3

AUTOMATIC CALIBRATION (FOR CON 6) 30

6.4

SETTING THE TDS FACTOR (FOR TDS 6) 30

6.5

TEMPERATURE COEFFICIENT 31

6.6

NORMALIZATION TEMPERATURE 32

6.7

SINGLE-POINT CALIBRATION 32

6.8

RESTORE FACTORY DEFAULT VALUES 33

PROBE CARE AND MAINTENANCE 34

TROUBLE-SHOOTING GUIDE 35

ERROR MESSAGES 36

SPECIFICATIONS 37

ACCESSORIES 39

CONDUCTIVITY THEORY 41

ADDENDUM 1: CALIBRATION TIPS 45

ADDENDUM 2: CALCULATING TDS CONVERSION FACTOR 46

ADDENDUM 3: CALCULATING TEMPERATURE COEFFICIENTS 47

WARRANTY 49

RETURN OF ITEMS 50

Instruction Manual CON 6/TDS 6

1 INTRODUCTION

Thank you for purchasing CON 6/TDS 6 Conductivity/TDS meter. These

economy microprocessor-based handheld meters deliver up to ±0.5% full-scale

accuracy. It has a large custom LCD (Liquid Crystal Display) for clear and easy

reading.

CON 6 measures Conductivity (µS/mS) and Temperature (°C) while the TDS 6

measures Total Dissolved 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 manual thoroughly before operating your meter.

To order other accessories and buffer standard solutions, please refer to the

Accessories Section for more information.

Instruction Manual CON 6/TDS 6

OFF

HOLD

ENTER

CAL

MODE

CON

Conductivity/ Meter

Instruction Manual CON 6/TDS 6

2 DISPLAY & KEYPAD FUNCTIONS

2.1 Display

The meter has a large custom LCD that consists of 4-digit segments and

operation annunciators for uS/mS (or ppm/ppt for TDS 6 meter) and °C

(Temperature). Other annunciators include “HO” (when the HOLD function is

activated) and “LO” (low battery condition). See Figure below.

pptm

HO LO %

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 CON 6 meter only.

6. Low battery indicator.

7. Hold (freezed) reading indicator.

Instruction Manual CON 6/TDS 6

2.2 Keypad

The CON 6 / TDS 6 meter has 6 keys on its splash-proof keypad; ON/OFF,

HOLD/ENTER, CAL, MODE, ▲and ▼keys. Some buttons have several

functions depending on its mode of operation.

OFF

•Powers on and shuts off the meter. Takes you directly into

measurement mode when meter is switched on.

CAL

•Enters into calibration mode for Conductivity/TDS and

Temperature.

•To abort calibration or setup mode without confirming any set

value.

HOLD

ENTER

HOLD: Freezes the measured reading. To activate, press HOLD

key while in measurement mode. To release, press HOLD

key again.

ENTER: 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 conductivity/TDS and

Temperature.

•When pressed together with ON/OFF key, it will take you into

the SETUP mode. This allows you to customize meter

preferences such as selecting electrode’s cell constant,

normalization temperature, temperature coefficient factor, TDS

factor (for TDS 6), automatic (only CON 6) or manual

calibration, single-point or multi-point calibrations, and to reset

meter to factory default.

Instruction Manual CON 6/TDS 6

3 PREPARATION

3.1 Inserting & Removing Rubber Boot

(Rubber Boot sold separately)

1) To remove meter from rubber boot, push

out from the bottom edges of meter until it is

completely out of boot. Ensure that the

cables of Conductivity electrode or

temperature probe are not connected.

2) To insert meter 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 polarity of battery before

inserting into position.

3) After replacement, place cover back

and press down until it locks tight.

Instruction Manual CON 6/TDS 6

3.3 Battery Replacement

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" Battery Condition

Caution: Power off the meter when changing battery.

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