EUTECH INSTRUMENTS ECOSCAN DO 6 DO METER User manual

Technolo

ade

Instruction Manual

DO 6

Economy Hand-held Dissolved Oxygen Meter

68X243622

Rev 0 01/04

Preface

This manual serves to explain the use of the Dissolved Oxygen palm-top meter

DO 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 DO6

palm-top meter as possible. If there are doubts in the use of the Dissolved

Oxygen palm-top 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 subject to change without notice as

improvements are made, and does not represent a commitment on the part of

Eutech Instruments / Oakton Instruments.

Eutech Instruments Pte Ltd

Oakton Instruments

Rev 0, 01/04

TABLE OF CONTENTS

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

2DISPLAY & KEYPAD FUNCTIONS......................................2

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

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

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

3.1 INSERTING &REMOVING RUBBER BOOT ..............................4

3.2 INSERTING THE BATTERIES ...................................................5

3.3 BATTERY REPLACEMENT ......................................................6

3.4 DISSOLVED OXYGEN PROBE INFORMATION ..........................7

3.5 CONNECTING THE PROBE TO METER .....................................9

3.6 SWITCHING THE METER ON................................................10

3.7 MEASUREMENT MODE SELECTION:- PERCENTAGE

SATURATION (%), CONCENTRATION (MG/L)(PPM)AND

TEMPERATURE(T) ...........................................................................11

4CALIBRATION.......................................................................12

4.1 IMPORTANT INFORMATION ON METER CALIBRATION .........12

4.2 PREPARING THE METER FOR CALIBRATION.........................13

4.3 TEMPERATURE CALIBRATION .............................................15

4.4 DISSOLVED OXYGEN CALIBRATION IN %SATURATION ......17

4.4.1 To calibrate 100% Saturation:...................................17

4.4.2 To calibrate 0% Saturation ........................................19

4.5 DISSOLVED OXYGEN CALIBRATION IN MG/L OR PPM

CONCENTRATION MODE...................................................................20

4.5.1 To calibrate in mg/L (ppm) Concentration mode:......20

5MEASUREMENT....................................................................22

5.1 WITH AUTOMATIC TEMPERATURE COMPENSATION (ATC) 22

5.2 MANUAL TEMPERATURE COMPENSATION...........................23

5.3 TAKING MEASUREMENTS....................................................25

5.3.1 To take measurements:...............................................25

5.4 TAKING PRESSURE/SALINITY COMPENSATED DO

MEASUREMENTS .............................................................................26

5.4.1 Pressure Setting Adjustment.......................................26

5.4.2 Salinity Setting Adjustment.........................................29

6HOLD FUNCTION..................................................................30

7ADVANCED SETUP FUNCTIONS.......................................31

7.1 ADVANCED SETUP OVERVIEW ............................................31

7.1.1 To enter the % Saturation or Temperature Set Up

menu: ....................................................................................31

7.1.2 To enter the mg/L (ppm) Concentration Set Up menu:...

....................................................................................31

7.2 (COF.1) CONFIGURATION MENU ........................................36

7.2.1 Selection of Automatic Temperature Compensation ..36

7.2.2 Selection of mg/L or ppm mode..................................38

7.3 (CAL.2) CALIBRATION DATA .............................................39

7.3.1 Viewing the % Saturation calibration data................39

7.3.2 Viewing the mg/L (ppm) Concentration calibration

data ....................................................................................39

7.4 (ELE.3) ELECTRODE PROPERTIES .......................................40

7.4.1 Viewing the electrode Slope Factor............................40

7.4.2 Viewing the % Saturation Offset (Only available in %

Saturation or Temperature Set Up menu):.................................40

7.4.3 Viewing the 100% Saturation mV value.....................41

7.4.4 Viewing the 0% Saturation mV value.........................41

7.5 (ATO.4) AUTOMATIC OFF ...................................................43

7.6 (RST.5) RESET TO FACTORY DEFAULT ................................44

7.6.1 Calibration Reset........................................................44

7.6.2 User Reset...................................................................46

7.7 (OFS.6) %SATURATION OFFSET ADJUSTMENT ..................47

7.8 (DPR.7) DISSOLVED OXYGEN PARAMETERS .......................49

7.8.1 Pressure Setting Adjustment.......................................49

7.8.2 Salinity Setting Adjustment.........................................51

8PROBE CARE AND MAINTENANCE.................................52

8.1 PROBE CARE .......................................................................53

8.2 PRE-MEMBRANED CAPS REPLACEMENT .............................53

8.3 TO REPLACE THE PROBE PRE-MEMBRANED CAP...................54

8.4 ELECTROLYTE SOLUTION....................................................55

9TROUBLE-SHOOTING GUIDE ...........................................56

10 ERROR MESSAGES...........................................................57

11 FACTORY DEFAULT SETTINGS...................................58

12 SPECIFICATIONS..............................................................60

13 ACCESSORIES....................................................................62

14 ADDITIONAL INFORMATION .......................................63

14.1 DISSOLVED OXYGEN...........................................................63

14.1.1 General Information...................................................63

14.1.2 Measurement Units.....................................................65

14.1.3 What Is Being Measured? ..........................................65

14.1.4 Air Calibration...........................................................66

14.1.5 Applications................................................................66

15 WARRANTY........................................................................68

16 RETURN OF ITEMS...........................................................69

Instruction Manual DO 6

1 INTRODUCTION

Thank you for purchasing the DO 6 Dissolved Oxygen palm-top meter. This

economy microprocessor-based palm-top meter has a large custom LCD

(Liquid Crystal Display) for clear and easy reading.

The DO 6 offers the measurement of dissolved oxygen in the percentage

saturation mode and in the concentration mode. Temperature measurement is

also available in degrees Celsius. The meter ensures accurate measurement of

the Dissolved Oxygen values through its temperature, barometric pressure and

salinity compensation features.

Your meter includes a dissolved oxygen probe, refill solution, a rubber boot, 4

alkaline “AAA” batteries, and instruction manual.

Please read this manual thoroughly before operating your meter.

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

on Accessories for more information.

Instruction Manual DO 6

2 DISPLAY & KEYPAD FUNCTIONS

2.1 Display

The meter has a large custom LCD that consists of 14-segment 4 digit display

and operation annunciators for Percentage Saturation measurement mode (%),

Concentration measurement mode (mg/L or ppm) and Temperature

measurement mode in degrees Celsius (T). Other annunciators include “A”

(when the ATC function is activated), “CAL” (when meter is in calibration mode)

and battery diagram for low battery condition. See Figure 1.

milligram per litre

(Concentration Mode)

mg/l

ppm

14-segment Liquid Crystal Display

Low Battery annunciato

Calibration Mode

Annunciator

CAL

Temperature Mode

A T C annunciator

parts per million

Percentage

(Percentage Saturation

Mode)

Figure 1: Active LCD display for DO 6

Instruction Manual DO 6

2.2 Keypad

The DO 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

ON/OFF – Powers on and shuts off the meter. The meter will start in the

measurement mode it was in when last switched off.

CAL

CAL – Activates the calibration mode for Percentage Saturation,

Concentration and Temperature calibrations.

Deactivates calibration or setup without confirming a value in calibration

mode.

HOLD

ENTER

HOLD -Activates/Deactivates freezing of the measured reading while in

measurement mode.

ENTER - Confirms the calibration values in Calibration mode and the

selections in the SETUP menu.

▲▼ – Sets the calibration values during the Concentration and

Temperature calibration.

Scrolls through each SETUP and its sub group menu.

Set offset adjustments and configuration settings.

MODE

MODE - Selects the measurement option between DO Percentage

Saturation measurement; DO Concentration measurement and

Temperature measurement.

When pressed together with ON/OFF key during power on, SETUP

mode is selected. This menu allows meter customization with

preferences such as activating ATC selection, DO concentration

measurement unit selection, viewing of the last calibration data,

viewing of the electrode properties, selecting the auto power off,

resetting calibration data or meter settings back to factory default,

setting the offset adjustments, setting barometric pressure in Hg or

PA for barometric pressure compensation and setting of the salinity

value for salinity compensation.

Instruction Manual DO 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 Dissolved

Oxygen 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.

Figure 2: Inserting or removing the rubber boot

Instruction Manual DO 6

3.2 Inserting the Batteries

The battery compartment is found at the back of instrument as shown in Figure

3. To open the battery compartment first remove protective rubber boot/stand

then:

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.

Figure 3: Inserting the batteries

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