EUTECH INSTRUMENTS ION 6 PLUS PH ION MV TEMP Manuale utente

Tech nol o

ade

Instruction Manual

pH 5+ pH/Temp

pH 6+ pH/mV/Temp

Ion 6+ pH/Ion/mV/Temp

68X243633

Rev 1 12/08

Part of Thermo Fisher Scientific

Preface

This instruction manual serves to explain the use of the pH 5+, pH 6+ and Ion 6+

meters.

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 pH 5+, pH6+ and

Ion 6+ meters as possible. If there are doubts in the use of this meter, 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. 1 12/08.

Instruction Manual pH 5+, pH 6+, Ion 6+

-1-

Table of Contents

1. INTRODUCTION ......................................................................... 2

2. GETTING STARTED................................................................... 3

2.1 Description of Keypad Functions ....................................................................3

2.2 Description of LCD Annunciators....................................................................4

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

2.4 Inserting New Batteries ..................................................................................5

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

2.6 Connecting the Electrode and Temperature Sensor .......................................5

2.7 Conditioning the pH Electrode ........................................................................6

2.8 Switching the Meter On ..................................................................................6

3. CALIBRATION............................................................................ 7

3.1 pH Calibration.................................................................................................7

3.1.1 pH Calibration Procedure............................................................................7

3.1.2 Changing the pH Buffer Group....................................................................8

3.1.3 Resetting User Calibrated Values ...............................................................9

3.2 Ion Calibration (Ion 6+)...................................................................................9

3.2.1 Ion Calibration Procedure .........................................................................10

3.3 Millivolt (mV) Calibration (pH 6+ only)...........................................................12

3.4 Temperature Calibration...............................................................................13

3.4.1 With Temperature Probe...........................................................................13

3.4.2 Without Temperature Probe (no ATC) ......................................................14

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

4.1 Taking Measurements ..................................................................................15

4.2 Millivolt (mV) Reference Check (Ion 6+ only)................................................15

4.3 Holding a Reading........................................................................................15

4.4 Releasing a Held Reading............................................................................15

5. ELECTRODE CARE AND MAINTENANCE ............................. 16

6. TROUBLESHOOTING .............................................................. 16

7. SPECIFICATIONS .................................................................... 17

8. REPLACEMENTS AND ACCESSORIES ................................. 18

9. WARRANTY.............................................................................. 19

10. RETURN OF ITEMS.................................................................. 19

Instruction Manual pH 5+, pH 6+, Ion 6+

-2-

1. INTRODUCTION

Thank you for purchasing the pH 5+, pH 6+, or Ion 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 pH 5+ measures pH and temperature (oC). The pH 6+ and Ion 6+ meters measure

pH, mV (ORP) and temperature.

Additionally, the Ion 6+ allows direct ion concentration measurement of various ions

(mono and divalent). The mV mode is also useful for diagnosis of ion selective

electrodes (ISE).

Meters include 4 alkaline “AAA” batteries, a rubber armor / stand, instruction manual,

and warranty card. Please refer to Section 8 Replacements and Accessories for

information on additional accessories and calibration solutions.

Instruction Manual pH 5+, pH 6+, Ion 6+

-3-

2. GETTING STARTED

2.1 Description of Keypad Functions

The pH 5+ and pH 6+ have four keys while the Ion 6+ meter has six keys on its splash-

proof keypad. The common keys are ON/OFF, HOLD/ENTER, CAL and MODE. The

Ion 6+ meter adds Sand Tkeys.

ON/OFF: Powers meter on and off. Meter starts up in the mode that you last switched

off from.

MODE/INC: Selects measurement mode for Ion, mV, pH and Temperature. Increment

button for mV calibration (pH 6+ only).

CAL: Allows calibration for Ion, pH, mV or Temperature, or to abort calibration and

return to measure without confirming a value.

S(Ion 6+ only): Increment values during calibration mode.

T(Ion 6+ only): Decrement values during calibration mode.

HOLD: Freezes the measured reading for easy viewing.

ENTER: Confirms calibration value.

pH 5+ and pH 6+ Ion 6+

Instruction Manual pH 5+, pH 6+, Ion 6+

-4-

2.2 Description of LCD Annunciators

The large custom LCD consists of 3½-digit segments which uses annunciators for pH,

mV or oC (Temperature). No annunciator is shown in Ion mode. Other annunciators

include “HO” (when HOLD function is activated) and “LO” (low battery condition).

2.3 Inserting & Removing the Rubber Armor / Stand

1. To remove meter from rubber armor, push out from the bottom edges of meter until

it is completely out of boot. Ensure that cables of ISE/pH electrode or temperature

probe are not connected. Figure A.

2. To insert meter into armor, 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.

ure

ure B

Instruction Manual pH 5+, pH 6+, Ion 6+

-5-

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.

2.5 Battery Replacement

The “LO” annunciator of the LCD alerts you when battery power is running low.

Caution: Power off the meter before changing battery.

2.6 Connecting the Electrode and Temperature Sensor

To connect the electrode into meter, align the BNC connector slots with the posts of

meter’s socket and rotate connector clockwise until it locks. Do not force when

connecting. To remove, simply rotate the connector in counter-clockwise direction until it

unlocks, and slide the connector off the socket.

Instruction Manual pH 5+, pH 6+, Ion 6+

-6-

Insert the mini phono jack of temperature sensor into the socket on the meter. Unplug

the phono jack when not in use or you measure pH without any temperature

compensation.

2.7 Conditioning the pH Electrode

For best results condition the pH electrode before use or if it has not been in use for a

long time by soaking it into a container filled with pH 4 buffer solution for at least 1 hour

and rinse before use.

2.8 Switching the Meter On

1. Press ON/OFF key. All LCD segments will display momentarily as the meter

performs a self-diagnostic test. The Ion 6+ will display “- - -“ if the meter has not

been calibrated or if the meter has been reset.

2. Press MODE key to choose the desired measurement mode.

If a temperature probe is not connected, either 25.0oC (factory default) or the last

calibrated temperature value is displayed. If a temperature probe is connected, the

current measured temperature is displayed.

3. “Or” (Over range) indicates the reading exceeds the maximum.

“Ur” (Under range) indicates the reading is under minimum measurement range

(see Section 7 Specifications).

2.5 mm Phono plug

for temperature

measurement

BNC connector of

pH, ORP, or Ion

electrode

Instruction Manual pH 5+, pH 6+, Ion 6+

-7-

3. CALIBRATION

3.1 pH Calibration

The meter is capable of calibrating up to 3 pH values using USA or NIST (nSt) pH buffer

standards or 2 pH values with Low Ionic (Pb) pH buffer standard. All new calibration

values will automatically override existing data.

USA group 4.01, 7.00, 10.01

NIST group 4.01, 6.86, 9.18

Pb group 4.10, 6.97

For best results perform at least a 2-point calibration at room temperature (25 oC) using

standard buffers. Begin with pH 7.00 (USA group), pH 6.86 (NIST group) or pH 6.97 (Pb

group).

For a 1-point calibration, calibration should be performed with a pH buffer value closest

to the expected sample value being measured.

The meter has automatic buffer recognition that identifies the correct pH buffer values

during calibration. The meter will accept calibration values that are within +/-1.0 pH units

of the expected value, otherwise the LCD will flash “Er1” and the value will not be

accepted. Press CAL to abort calibration and resume measurement.

Always use new pH buffer solutions for calibration. Do not reuse buffer solutions as it

may be contaminated and affect the calibration and accuracy of measurements.

Promptly seal containers and store solutions in a dark, dry, cool environment.

Before use, remove the plastic protective cap of pH electrode and condition the glass

bulb by soaking it in tap water or pH buffer (preferably pH 4) for 1-2 hours. This hydrates

the glass bulb if the electrode is too dry or has not been used recently. Always rinse the

probes with clean water before and after each calibration/sample measurement to avoid

cross-contamination. For details refer to section 5 on Electrode care and maintenance.

3.1.1 pH Calibration Procedure

1. Pour known pH buffer calibration standard solution into a clean, dry container, e.g.

pH 7.00. Turn on meter and select pH mode by pressing MODE key if necessary.

2. Dip the pH electrode and temperature probe into the solution. Swirl gently and wait

for reading to stabilise (approx. 30 seconds depending on your electrode condition).

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