Palintest Micro 600 Bedienungsanleitung

ZI INST 1200

Micro 600 pH Meter

Preface

This manual serves to explain the use of the Micro 600 pH hand held meter.

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

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

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

Micro 600 pH meter as possible. If there are doubts in the use of this meter,

please contact us. Our contact details are on the last page of this manual.

Palintest 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. Please refer to our website for the latest version.

Contents

Chapter Page

1 Introduction 4

2 Getting Started 5

2.1 Description of Keypad Functions 5

2.2 Description of LCD Annunciators 5

2.3 Inserting & removing the rubber armour/stand 6

2.4 Inserting New Batteries 6

2.5 Connecting Electrodes and Temperature Sensor 7

2.6 Powering the Meter On 7

3 Calibration 8

3.1 pH Calibration 8

pH Calibration Procedure 8

Resetting Used Calibrated Values 9

3.2 Millivolt (mV) Calibration 10

3.3 Temperature Calibration 11

With Temperature Probe (Automatic Temperature Compensation) 11

Without Temperature Probe (Manual Temperature Compensation) 12

4 Measurement 14

Taking Measurements 14

Holding & Releasing a Reading 14

5 Electrode Care and Maintenance 15

6 Troubleshooting 16

7 Specifications 17

8 Replacements and Accessories 18

9 Warranty and Certification 19

1Introduction

Thank you for selecting our Micro 600 pH portable meter. This microprocessor-

based handheld instrument is both economical and easy to use.

The Micro 600 pH measures pH, mV (ORP) and temperature (ºC).

Each meter includes 4 x alkaline “AAA” batteries, a rubber armour/stand, pH7

buffer, pH4 buffer, Electrode Storage Solution, Deionised water, pH Electrode,

Temperature Probe and instruction manual. Please refer to Section - 7

Replacements and Accessories for information on additional accessories

and calibration solutions.

1.0 Introduction

Getting Started

The Micro 600 pH has four keys, on its

splash-proof keypad as shown here:

ON/OFF Powers the meter on and off. Upon

power on, the meter automatically

begins in the measurement mode

that was last used.

CA Press to begin calibration of the

selected mode. Press again during

calibration to abort calibration and

return to measurement mode without

confirming any values.

During setup mode, function is similar

to “escape” or “go back”, returning to the previous screen.

With meter off, press and hold CA to select the reset menu

(rSt) while powering on.

MODE Selects measurement modes (pH, mV, & Temperature).

INC With meter off, press and hold MODE/INC to access the bUf

(buffer), CAL (calibration), and ELE (electrode) setup menus while

powering on. Press MODE/INC again to change setup menus.

Increment for Temperature setting and calibration.

HO D Freezes measured reading. Press again to resume live reading.

ENTER Confirms calibration value in calibration mode and confirms

selections in SETUP mode.

2.1 Description of Keypad Functions

2.2 Description of CD Annunciators

The 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 HO D function is activated) and “ O” (low battery condition).

2Getting Started

Before removing the meter from the rubber armour, disconnect any electrodes.

Push out from the bottom edges of meter until it is completely out of boot.

To insert meter into the armour, slide in from the top of meter before pushing

the bottom edges of meter into position. Tilt the stand at the back of meter

for table top usage as desired.

2.3 Inserting & removing the rubber armour/stand

The “ O” annunciator alerts you when battery power is running low. Power off

the meter before removing the batteries. After removing the rubber armour, push

the battery cover in the direction of the arrow and lift up - no screwdriver

is required. Note the polarity of batteries before inserting into position.

2.4 Inserting New Batteries

Getting Started

Align the BNC connector slots with the posts

of meter’s socket and rotate connector

clockwise until it locks - do not force. To

remove, rotate the connector in counter-

clockwise direction until it unlocks, and slide

the connector off the socket. Insert the mini

phono jack of temperature sensor into the

socket on the meter. Unplug the phono

jack to perform measurements without

temperature compensation (25°C default).

2.5 Connecting Electrodes and Temperature Sensor

BNC

connector of

pH, ORP, or

Ion Selective

Electrode

2.5mm Phono plug for

temperature measurement

Press ON/OFF. All LCD segments will display momentarily during the self-

diagnostic test, before scrolling the model number, software revision, pH

buffer group, and number of pH calibration points selected before returning

to the measurement mode:

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

last calibrated temperature value is used. If a temperature probe is connected,

the current measured temperature is used.

“Or” (Over range) and “Ur” (Under range) indicates the reading exceeds the

maximum or minimum measurement range. See Section 6 - Specifications.

However, the most likely reason for these error messages is that the electrode

is not connected or broken.

2.6 Powering the Meter On

3Calibration

The Micro 600 pH meter is capable of up to three-point calibration with standard

pH buffer values at pH 4.01, 7.00 and 10.01 to ensure accuracy across the entire

range of the meter. It also allows offset adjustment in mV and Temperature

modes. All new calibration values will automatically override existing data.

It is recommended that you perform at least two-point calibration at room

temperature using standard buffers. For a one-point calibration, calibration

should be performed with a pH buffer value closest to expected sample value

being measured. Otherwise calibrating at pH 7.00 is advisable.

Ensure that you use fresh pH buffer solutions as they may be contaminated

and affect the calibration and accuracy of measurements.

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

the glass bulb by soaking it in tap water for 1 - 2 hours. This hydrates the

glass bulb if electrode is too dry or has been used for a long period of time.

Always rinse the probes with tap water or rinse solution before and after

each calibration/sample measurement to avoid cross-contamination.

For details please refer to section on Electrode Care and Maintenance.

Note: Always use fresh pH buffer solutions for calibration. Do not

reuse buffer solutions as they change with prolonged exposure to

air (especially pH 10 buffer) resulting in decreased measurement

accuracy. Promptly seal containers and store solutions in a dark,

dry, cool environment.

3.1 pH Calibration

1Turn on the meter and select pH mode by pressing MODE if necessary.

2Press CA to begin pH calibration mode. “CA” (calibrate) will display

briefly. Notice that the pH reading and “pH” annunciator will both blink.

pH Calibration Procedure

Calibration

4When the pH reading has stabilised, the pH annunciator will stop

blinking. Press HO D/ENTER to confirm the value. “CO” (confirm) will

display briefly. The pH value is automatically adjusted to the buffer value

shown from your selected buffer group. The example below shows a

successful pH 7.00 calibration at 25°C.

5For a one-point calibration with pH 7.00 only, press

CA to return to measurement mode. However

for highest accuracy - perform a multiple-point

calibration. Repeat steps 3 & 4 with additional pH

buffer calibration standards. When you have completed the preset number

of calibration points, the meter will automatically save the calibration,

cease blinking, and begin pH measurement.

3Pour pH buffer calibration standard solution into a clean, dry container

and dip your pH electrode and temperature probe in the solution. Swirl

gently or stir and wait for reading to stabilise (approx. 30 seconds

depending on your electrode condition).

The meter can be completely reset to factory default values, or partially reset

for calibration values only using the procedure below.

*For calibration reset, measure in the mode that you want to reset prior to step 1 below.

Resetting User Calibrated Values

Reset Type

No (nO)

Calibration (CAL)

Factory (FCt)

No reset is performed; meter returns to measurement

Reset of either pH, mV, or Temperature

calibration depending on the selected mode*

Reset of all calibration values and user

settings to factory default settings

Description

Q: My meter, electrode & buffers are new - why does my pH 10 buffer read “10.06”?

A: Temperature influences pH. While pH 10 buffer is 10.00 at 25°C / 77°F,

at 20°C / 68°F it is actually 10.06! This is why it is always best to record

the temperature as well as the pH reading!

3Calibration

1Power off the meter. Press and hold CA then press ON/OFF. If successful,

“rST” will blink on the display. Release both keys.

2Press HO D/ENTER to enter the reset menu.

3Press MODE to toggle between No Reset (nO), Calibration Reset (CAL),

or Factory Reset (FCt). Press CA to cancel.

4Press HO D/ENTER to confirm the selected reset type. The meter will

automatically begin measurement mode.

Oxidisation Reduction Potential (ORP or Redox) as measured by an ORP

electrode in mV units is not a precise measurement, but is useful as a relative

indicator. As such, mV offset adjustment is not meant to enhance accuracy,

but rather to make readings comparable to a reference.

Commercial ORP solutions are commonly used as a check standard - a

meter/electrode system is verified to be close to a given value although

adjustments are not made. These solutions can be used as a calibration

standard in which adjustments are made in an attempt to match the ORP

value, however results are often difficult to reproduce.

1Turn on the meter and select mV mode by pressing MODE if necessary.

Dip the ORP electrode into a solution with a known mV value (e.g. Zobel,

Light’s, quinhydrone, or iodidetriiodide) and provide brief or slow stirring.

3.2 Millivolt (mV) Calibration

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