EUTECH INSTRUMENTS COND 6 PLUS Manuale utente

Technolo

ade

Instruction Manual

Cond 6+ Conductivity/Temp

TDS 6+ TDS/Temp

Salt 6+ Salinity/Temp

68X243635

Rev 0 02/09

Part of Thermo Fisher Scientific

Preface

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

meters. The models covered are the CON 6+, TDS 6+, and Salt 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,

TDS, and Salinity handheld meters as possible. If there are doubts in the use of these

meters, please do not hesitate to contact the nearest 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.

Eutech Instruments Pte Ltd

Rev. 0 02/09

Table of Contents

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

2. GETTING STARTED..................................................................2

2.1 Description of Keypad Functions .................................................................2

2.2 Description of LCD Annunciators.................................................................3

2.3 Inserting & Removing the Rubber Armour / Stand.......................................4

2.4 Inserting New Batteries ...............................................................................4

2.5 Battery Replacement...................................................................................5

2.6 Electrode Information ..................................................................................5

2.7 Connecting the Electrode ............................................................................6

2.8 Switching the Meter On ...............................................................................7

2.9 Changing Mode...........................................................................................8

3. CALIBRATION...........................................................................9

3.1 Important Information on Meter Calibration .................................................9

3.2 Preparing the Meter for Calibration..............................................................10

3.3 Selection of Auto or Manual Calibration (COND 6+)....................................10

3.4 Using Automatic Calibration (COND 6+)......................................................11

3.5 Manual Calibration ......................................................................................13

3.6 Temperature Calibration..............................................................................14

4. MEASUREMENT .......................................................................15

4.1 With Automatic Temperature Compensation (ATC).....................................15

4.2 Without ATC (Manual Temperature Compensation)....................................15

4.3 Taking Measurements.................................................................................16

4.4 Using Manual Ranging Function (COND 6+, TDS 6+).................................16

4.5 HOLD Function............................................................................................18

5. ADVANCED SETUP FUNCTIONS ............................................18

5.1 Advanced Setup Overview ..........................................................................18

5.2 Select Cell Constant (COND 6+, TDS 6+ only)............................................20

5.3 Automatic Calibration (COND 6+ only) ........................................................20

5.4 Setting the TDS Factor (TDS 6+ only) .........................................................21

5.5 Temperature Coefficient ..............................................................................21

5.6 Normalization Temperature .........................................................................22

5.7 Single-Point Calibration (COND 6+, TDS 6+ only).......................................22

5.8 Restore Factory Default Values...................................................................23

6. PROBE CARE AND MAINTENANCE .......................................23

7. TROUBLESHOOTING...............................................................24

8. SPECIFICATIONS / FEATURES...............................................25

9. CONDUCTIVITY THEORY.........................................................27

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

Instruction Manual COND 6+, TDS 6+, SALT 6+

-1-

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). Each measures up to 5 different ranges and can

automatically switch to appropriate measuring range.

The Salt 6+ measures salinity (as NaCl) in % salt or ppt and temperature (°C).

Your meter includes an electrode (cell constant K = 1.0) with built-in temperature sensor

(ECCONSEN91B), rubber armour, 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 COND 6+, TDS 6+, SALT 6+

-2-

2. GETTING STARTED

2.1 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.

CAL Enters into calibration mode. Pressing while in

calibration mode will abort calibration without

confirming value.

MODE Selects desired measurement mode. When pressed simultaneously with

ON/OFF, it will take you into the SETUP mode. See ADVANCED SETUP

section for more information.

HOLD Freezes measured reading. Press again to resume live reading.

ENTER Confirms calibration value in calibration mode and confirm selections in

SETUP mode.

 Increment values during calibration mode or scroll through SETUP.

Activates manual ranging function during conductivity / TDS measurement.

Decrement values during calibration mode.

Instruction Manual COND 6+, TDS 6+, SALT 6+

-3-

2.2 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).

pptm

HO LO %

C°

1. Primary display

2. Parts per million (ppm) (TDS 6+ only).

Parts per thousand (ppt) (TDS 6+ & Salt 6+ only).

3. Milli-Siemens/cm (mS) or micro-Siemens/cm (µS) indicator (Cond 6+ only).

4. Temperature indicator.

5. Percentage indicator for temperature coefficient or % Salinity (Salt 6+ only).

6. “LO” = low battery condition.

7. “HO” = HOLD function is activated and reading is frozen.

Instruction Manual COND 6+, TDS 6+, SALT 6+

-4-

2.3 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.

2. To insert meter into armour, 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. Figure B.

2.4 Inserting New Batteries

The battery compartment is found at the back of instrument. To open the battery

compartment, push in the direction of arrow and lift up the cover. Note the polarity of

battery before inserting into position. After replacement, place cover back and press

down until it locks.

ure

ure B

Instruction Manual COND 6+, TDS 6+, SALT 6+

-5-

2.5 Battery Replacement

A “LO” annunciator in the LCD alerts you when battery power is running low. See below.

"LO" Battery Condition

Caution: Power off the meter when changing battery.

2.6 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. The Ultem-body housing has good chemical

resistant properties. The electrode design offers fast temperature

response and reduces air entrapment, ensuring accurate, repeatable,

and stable readings.

The wettable materials of the probe include:

1. Polyetherimide (Ultem) – protective probe guard

2. Polybutylterphalate (Valox) – sensor housing

3. Stainless Steel (SS 304) – 2 steel bands

The protective probe guard can be removed temporarily for

maintenance but must be re-attached during measurement and

calibration. Erroneous results will occur while the probe guard is

removed.

Always immerse the probe beyond upper steel band for best results.

Use the fill line on the outside of the probe guard for reference.

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