Palintest Micro 600 Manuale utente

Palintest ®

ZI INST 1240

Palintest

Micro 600 DO Meter

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 1

Palintest ®

Preface

This manual serves to explain the use of the Micro 600 DO 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 DO 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.

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 2

Contents

Chapter Page 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 Battery Replacement 7

2.6 Connecting the Electrode 7

2.7 Electrode Information 7

2.8 Switching the Meter On 8

2.9 Changing Mode 8

3 Calibration 9

3.1 General Information 9

3.2 Temperature Calibration 10

3.3 % Saturation Calibration 11

3.3.1 100% Calibration 11

3.3.2 0% Calibration 12

3.4 mg/L or ppm Calibration 13

4 Measurement 14

4.1 Temperature Compensation 14

4.2 Taking Measurements 15

4.3 Pressure & Salinity

Compensated Measurements 15

4.4 Holding a Reading 16

5 Setup 17

5.1 Configuration Menu (COF.1) 21

5.2 Automatic Temperature

Compensation (A.ATC) 21

5.3 Selection of mg/L or ppm (b.DO) 21

5.4 Calibration Data (CAL.2) 22

5.5 Electrode Data (ELE.3) 22

5.6 Automatic Shut Off (AtO.4) 24

5.7 Reset to Factory Default (rSt.5) 24

5.8 % Saturation Offset

Adjustment (OFS.6) 25

5.9 Pressure & Salinity Adjustment 26

6 Probe Maintenance 28

6.1 Cap and Electrolyte Replacement 28

6.2 Electrolyte Solution 29

7 Troubleshooting 30

8 Error Messages 31

9 Factory Default Settings 32

10 Specifications 33

11 Replacements and Accessories 34

12 Dissolved Oxygen Theory 35

Measurement Units 36

What is being measured? 36

Air Calibration 36

Applications 37

13 Warranty 38

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 3

1Introduction

Thank you for purchasing the Micro 600 DO. This microprocessor-based

handheld meter is economical and easy to use. It has a large custom LCD

(Liquid Crystal Display) for clear and easy reading.

The Micro 600 DO offers measurement of dissolved oxygen (DO) as

percentage saturation or concentration. 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.

Meter kits include a dissolved oxygen probe, DO membrane maintenance

set, zero oxygen solution, deionised water, a rubber armour/stand, 4 alkaline

“AAA” batteries, instruction manual, and warranty card. For additional

information, see Section 11 - REPLACEMENTS AND ACCESSORIES.

Please read this manual thoroughly before operating your meter.

1.0 Introduction

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 4

Getting Started

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. For more information see Section 5 - SETUP.

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

ENTER Confirms calibration value in calibration mode and confirm

selections in SETUP mode.

▲▼ Increment/decrement values during calibration mode or scroll through

SETUP menus. Set offset adjustments and configuration settings.

2.1 Description of Keypad Functions

2.2 Description of LCD Annunciators

Active LCD

display for

Micro 600 DO

Your meter has a large custom LCD that consists of 4-digit segments plus

annunciators for percentage saturation (%), concentration (mg/L or ppm)

and Temperature in degrees Celsius (T).

Other annunciators include “A” (when the ATC function is activated),

“CAL” (when meter is in calibration mode) and low battery condition.

Calibration

Mode

Annunciator

ATC Annunciator

milligram per litre

(Concentration Mode)

parts per million

Percentage (Percentage

Saturation Mode)

Low Battery Annunciator Temperature Mode

14-segment Liquid Crystal Display

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 5

2Getting Started

1To 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. See Figure 1.

2To 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. See Figure 2.

2.3 Inserting & removing the rubber armour/stand

Figure 1 Figure 2

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.

2.4 Inserting New Batteries

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 6

Getting Started

1To connect the electrode, align the connector

slots with the posts of meter’s socket and

rotate connector clockwise until it locks.

2To remove, rotate the connector in anti-

clockwise direction until it unlocks,

and slide the connector off the socket.

3Insert the mini phono jack of

temperature sensor into the socket

on the meter as shown opposite.

2.6 Connecting the Electrode

A low battery annunciator in the LCD alerts you

when battery power is running low. Caution:

Power off the meter before replacing battery.

2.5 Battery Replacement

Low Battery Condition

BNC

connector

2.5mm mini phono

for temperature

Detachable

Pre-membraned

Cap (Probe

Sensing Area)

Galvanic

DO probe

PT 148/3

The Micro 600 DO includes a galvanic DO electrode

PT 148/3 which doesn’t require warm-up. It generates

a millivolt signal proportional to the amount of oxygen

in the solution.

The electrode has a dual cable; a BNC connector for DO

measurement and a phono jack plug for temperature.

The sensor utilises a cathode, anode, and electrolyte that

are separated from the sample by an oxygen permeable

membrane. The membrane is pre-assembled for you

and fixed to a detachable cap. The pre-assembled cap

design allows simple replacement and fast conditioning.

The probe is light weight and includes a built-in

temperature sensor. The epoxy body of the probe

is 12mm diameter while the detachable Noryl cap

is 16mm diameter. The compact sensing area

reduces air entrapment resulting in quick, accurate,

and stable readings.

2.7 Electrode Information

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 7

2Getting Started

The pre-assembled cap must be completely submersed to obtain an accurate

reading in solutions. Provide simple stirring for best results - ideally achieve

a minimum water flow rate of 2 inch/second on the membrane. The probe

is not recommended beyond 0 to 50°C.

Shaking will aid to remove bubbles if needed before taking a reading. When

calibrating in air, shake to remove water from the membrane.

The membrane is thin and can not be repaired if damaged. Use care to protect

from scratches, abrasion, or contact with solids. For best results keep membrane

clean by rinsing after daily use. See Section 6 - PROBE MAINTENANCE.

Press ON/OFF to power up your meter. Your

meter will cycle through various setup parameters

when switched on.

1All LCD segments will briefly illuminate.

2The model Micro 600 DO will display next

along with mg/l, ppm, and % annunciators.

3Next, the meter revision number [r #.##] is

shown briefly before beginning measurement.

4The meter begins with the measurement

mode that was in use when it was previously

powered off - %, mg/l, ppm, or T.

2.8 Switching the Meter On

Press MODE to switch between

percentage saturation (%),

concentration (mg/L)(ppm), and

temperature (T) measurement.

2.9 Changing Mode Automatic

Temperature

Compensation

Percentage

Saturation

Concentration

Mode

Temperature

Mode

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 8

Calibration

The Micro 600 DO has three measurement modes; DO as % saturation,

DO as mg/L (or ppm) concentration, and temperature.

Dissolved oxygen levels vary with temperature, barometric pressure, and

salinity, so calibration must be performed with consideration of these factors.

It is necessary to set the proper temperature, barometric pressure and

salinity values prior to performing any DO calibration or measurement.

See Section 3.2 - Temperature Calibration

See Section 5.2 - Automatic Temperature Compensation

See Section 5.9 - Pressure & Salinity Adjustment

The Micro 600 DO will accept two % saturation calibration points; 100% using

saturated air or air-saturated water, and 0% using zero oxygen solution. When

100% calibration is performed, the corresponding concentration is adjusted

simultaneously. Therefore, it is not necessary to calibrate the concentration

mode. If calibrating for 0% oxygen, note that the meter will take several

minutes to reach 0% saturation value and constant stirring is not required.

The following table lists calibration values in % saturation calibration mode

with two different barometric pressures. Note that the saturation value

(92.1%) has decreased due to the lower barometric pressure entered.

If calibration is attempted from 10.1% to 49.9%, the “Err.1” message is shown

- calibration is rejected and the display will return to measurement mode.

The Micro 600 DO will accept one calibration point in concentration mode.

The minimum value is 2mg/L (ppm), and the calibration window is +/- 40%

of the factory default value.

Temperature and % saturation calibration should take place before attempting

to perform mg/L (ppm) concentration calibration.

3.1 General Information

% Saturation

(per factory default value)

less than 10%

10.1% to 49.9%

50% to 200%

Err.1 (error 1)

100%

Err.1 (error 1)

92.1%

Calibration Value

(760mmHg)

Calibration Value

(700mmHg)

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 9

3Calibration

Calibration of the concentration mode will only replace the previous

concentration calibration and does not affect the % saturation calibration.

To offset your % saturation reading to match another instrument, see

Section 5.8 - % Saturation Offset Adjustment.

New calibration values will automatically override the existing data. Perform

daily calibration for best results. To completely recalibrate the meter and

when installing a replacement electrode, it is best to clear all calibration

data. See Section 5.7 Reset to Factory Default.

3.2 Temperature Calibration

For best DO accuracy, ensure that the

temperature is accurate. The temperature

sensor of the probe has been factory calibrated,

however if it changes over time or if the probe

is replaced, calibration may be necessary.

To protect from erroneous calibrations, the

allowable tolerance is limited to ±5°C

adjustment of the factory default value.

Most users utilise automatic temperature

compensation using the sensor that is built

into the probe. However, manual temperature

compensation can be used to input a fixed,

known temperature.

1Press MODE to select temperature mode. The

display should show “T” for temperature and

“A” for automatic temperature compensation.

2Dip the probe into a solution with a known,

accurate temperature (i.e. a temperature

bath). Allow enough time for the temperature

reading to stabilise.

3Press CAL. The CAL indicator will blink above

the display. The temperature value shown

is the value based on the factory default.

Micro600DO_ZI INST 1240 16/9/15 12:57 Page 10

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