Oakton Salt 6 Instruction Manual

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Instruction Manual

Salt 6

Hand-held Salinity Meter

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68X243619

ver. 0 051102

Preface

This manual serves to explain the use of the Salt 6 salinity meter.

It 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 Salt 6 salinity meter as possible. If there are doubts in the use of this meter, 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

1 INTRODUCTION 1

2 DISPLAY & KEYPAD FUNCTIONS 3

2.1 Display 3

2.2 Keypad 4

3 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 6

3.5 Connecting the Probe to Meter 8

3.6 Switching the Meter On 9

3.7 Change Salinity ÙTemperature Measurement Mode 10

4 CALIBRATION 11

4.1 Important Information on Meter Calibration 11

4.2 Preparing the Meter for Calibration 12

4.3 Calibration for Salinity (% or ppt) 13

4.4 Temperature Calibration 14

5 MEASUREMENT 15

5.1 With Automatic Temperature Compensation (ATC) 15

5.2 Without ATC (Manual Temperature Compensation) 16

5.3 Taking Measurements 17

5.4 HOLD Function 18

6 ADVANCED SETUP FUNCTIONS 19

6.1 Advanced Setup Overview 19

6.2 Temperature Coefficient 21

6.3 Normalization Temperature 22

6.4 Selection of ppt or PrSn. (Default being PrSn) 23

6.5 Restore Factory Default Values 24

7 PROBE CARE AND MAINTENANCE 25

8 TROUBLE-SHOOTING GUIDE 26

9 ERROR MESSAGES 27

10 SPECIFICATIONS 29

11 ACCESSORIES 30

12 ADDENDUM 1: CALIBRATION TIPS 31

13 WARRANTY 32

14 RETURN OF ITEMS 33

Instruction Manual Salt 6

1 INTRODUCTION

Thank you for purchasing the Salt 6 Salinity 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.

The Salt 6 meter measures the amount of Sodium Chloride (NaCl) concentration either in Percentage (%) or Parts Per Thousand (ppt), and Temperature (°C).

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.

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Instruction Manual Salt 6

Salt

6

%

Salinity Meter

ON

OFF

MODE

HOLD

ENTER

CAL

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Instruction Manual Salt 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 ppt or %, and °C (Temperature). Other annunciators include “HO” (when the HOLD function is activated) and “LO” (low battery condition).

56

HO LO

1

LCD and Customized Annunciators for Salt 6 salinity meter

1. Primary display 4. Percentage indicator for

2. Parts Per Thousand (ppt) 5. Low battery indicator.

3. Temperature indicator 6. Hold (freezed) reading

3

4

%

C°

ppt

Concentration and Temperature Coefficient.

indicator.

3

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Instruction Manual Salt 6

2.2 Keypad

The Salt 6 salinity 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.

ON

OFF

CAL

HOLD

ENTER

MODE

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

measurement mode when meter is switched on.

• Enters into calibration mode for % (or ppt) and Temperature.

• To abort calibration or setup mode without confirming any set

value.

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

programmes.

• Selects measurement mode for salinity 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 normalization temperature, temperature coefficient factor, and resetting the meter to factory default.

1) Normalization Temperature

2) Temperature Coefficient Factor

3) Selection of ppt or % measurement mode (ppt or PrSn

4) User reset

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Instruction Manual Salt 6

3 PREPARATION

3.1 Inserting & Removing Rubber Boot

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:

3) Push in the direction of arrow and lift up the cover.

4) Note the polarity of battery before inserting into position.

5) After replacement, place cover back and press down until it locks tight.

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Instruction Manual Salt 6

3.3 Battery Replacement

A “LO” annunciator in the LCD alerts you when battery power is running low. Replace with the same type as recommended by the manufacturer.

LO

"LO" Battery Condition

Caution: Power off the meter when changing battery.

%

3.4 Conductivity Electrode Information

The Salt 6 salinity hand-held meter is supplied with a electrode with a BNC connector. This electrode (Order Part Number: EC-CONSEN91B/ 35606-55) comes with Stainless Steel rings, cell constant of K = 1.0, and a builtin temperature sensor for Automatic Temperature Compensation (ATC). Its specially designed Ultem-body housing has good chemical resistant properties. It provides fast temperature response and reduces air entrapment, which makes it easy to obtain accurate, stable readings.

The probe materials used which have good chemical durability include:

1. Polyetherimide (Ultem) – protective probe guard

2. Polybutylterphalate (Valox) – sensor housing

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

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Instruction Manual Salt 6

Proper use of probe is essential to ensure that the optimum measurement is taken in a short time.

The removable protective plastic probe guard is meant for simple periodic maintenance and it must be kept in tact during measurement and calibration.

Always immerse the probe beyond upper steel band.

NOTE:

1) DO NOT remove the protective probe guard during measurement and calibration as it may affect your readings.

2) We recommend that you do not submerge the probe above the protective guard. You can submerge the cable for brief periods of time, but not continuously.

See Section 7 - Probe Care and Maintenance” for more information.

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Instruction Manual Salt 6

3.5 Connecting the Probe to Meter

1) To connect electrode into meter, align the connector slots with the posts of meter’s socket and rotate connector clockwise until it locks.

2) To remove, simply rotate the connector in anti-clockwise direction until it unlocks, and slide the connector off the socket.

3) Insert the mini phono jack of temperature sensor into the socket on the meter as shown in Figure below.

4) Unplug the phono jack when not in use or when you want to measure Conductivity or TDS without any temperature compensation (Manual Temperature Compensation, see Section

5.2).

CAUTION: Do not pull or force on the probe cord or the probe

NOTE: Keep connectors clean. Do not touch connector with

wires might disconnect.

soiled hands.

BNC connector for conductivity probe

Phono jack for Temperature probe

Connection for Conductivity & Temperature Probes

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Instruction Manual Salt 6

3.6 Switching the Meter On

When switching the meter on, it will go through a series of displays, showing the various setup parameters.

OFF

ON

Measurement Mode

(when probe is held in air)

%

ppt

pH %

MINMAX

LOHOJKT

m

µ

pptmV

FC°°

S

C°

%

1) Press ON/OFF key to power up your meter.

2) The first screen shows [SAL 6] which is the meter’s name.

3) Second screen shows [C 1.0] which is the conductivity cell constant, k. Cell constant value is fixed, k=1.0.

4) Third screen shows [t 25.0 °C] which is the Normalization Temperature. You can set Normalization Temperature at either 25 °C or 20 °C. Refer to Section on Advance Setup. Default value is 25 °C.

5) Fourth screen shows [t 2.1%] which is the Temperature Coefficient. You can customize the meter with different Temperature Coefficient value from 0.0 to 3.0 %/°C from the Advance Setup mode. Default value is 2.1 %/°C.

6) All LCD segments will light up for 2 seconds, and change into measurement mode. When the probe is held in the air and not in contact with liquid, the value displayed may be [Ur].

7) You are now ready for conductivity measurement.

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