palintest Micro 600 User manual

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.
2

Contents
3
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.
4
1.0 Introduction

2
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.
5
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
6
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

2
Getting Started
7
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
8
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

3
Calibration
9
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
10
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

3
Calibration
11
2Press CA to begin mV calibration mode. “CA” (calibrate) will display briefly.
The un-adjusted mV value will blink.
3Use MODE/INC to adjust the reading to the desired value. The maximum
adjustment is ± 50 mV.
4When the reading has stabilised, the mV annunciator will stop blinking.
Press HO D/ENTER to confirm the value. “CO” (confirm) will display
briefly. The meter will automatically save the calibration, cease blinking,
and begin mV measurement.
With Temperature Probe (Automatic Temperature Compensation)
The thermistor sensor used for temperature measurement is accurate and
stable, so frequent calibration isn’t required. Temperature calibration is
recommended upon electrode replacement, whenever the temperature
reading is suspect, or if matching against a certified thermometer is desired.
Note: If temperature calibration will be performed, be sure that
the thermometry source being used as a reference is accurate!
1Turn on the meter and select °C mode by pressing MODE if necessary.
Connect the temperature probe and place it into a solution with a known
accurate temperature such as a constant temperature bath or NIST-traceable
thermometer. Allow adequate time to stabilise.
3.3 Temperature Calibration

3Calibration
12
2Press CA to begin temperature calibration mode. “CA” (calibrate)
will display briefly. The un-adjusted °C value will blink.
3Compare the measured value of the temperature probe with the reference
thermometer. Use MODE/INC to adjust the reading to the desired value.
The maximum adjustment is ± 5°C.
4Press HO D/ENTER to confirm the value. “CO” (confirm) will display
briefly. The meter will automatically save the calibration, cease blinking,
and begin °C measurement.
Without Temperature Probe (Manual Temperature Compensation)
If a temperature probe is not connected, the meter compensates for pH
response based on the factory default value at 25.0°C. This default temperature
can be manually adjusted using the procedure below.
For nearly all applications however, Automatic Temperature Compensation
(ATC) is recommended for best accuracy.

3
Calibration
13
2Press CA to begin temperature calibration mode. “CA” (calibrate) will
display briefly. The factory default temperature 25.0°C value will blink.
1Turn on the meter and select °C mode by pressing MODE if necessary.
Disconnect the temperature probe.
3Use MODE/INC to adjust the reading to the desired value. The maximum
adjustment is ± 0 to 100°C.
4Press HO D/ENTER to confirm the value. “CO” (confirm) will display
briefly. The meter will automatically save the calibration, cease blinking,
and begin °C measurement with the new default temperature.

4Measurement
14
Taking Measurements
1Before measurement, rinse the pH/ORP electrode and temperature probe
with clean water.
2Power on the meter. Press MODE key to select your desired mode of
operation (pH, mV, Ion, or Temperature).
3Dip both probes gently into an aqueous test sample, swirl or stir gently
and allow the reading to stabilise.
Holding & Releasing a Reading
To freeze or hold a displayed reading, press HO D/ENTER. The “HO”
annunciator indicates that the HO D function is activated. Press
HO D/ENTER again to deactivate the HO D function. The meter reverts
to current measurement mode, and the “HO” annunciator will disappear.

5
Electrode Care and Maintenance
15
Electrode Care and Maintenance
For best results, always keep the pH electrode bulb wet. Store the pH bulb with
electrode storage solution. Electrode storage solution is available as part of the
Palintest Electrode Care Pack (see Accessories Section). If electrode storage
solution is not available, use tap water or buffer solution.
NEVER use deionised water for storage.
Wash the probes thoroughly with tap or deionised water after each use.
Your pH electrode is susceptible to contamination or dirt and, therefore, requires
cleaning every one to three months depending on extent and condition of use.
Clean the electrode in a mild detergent solution. Wipe the probe with a soft
tissue paper. Avoid touching the glass membrane with your fingers. Wash
thoroughly in tap water and then in deionised water. Recalibrate the meter
after cleaning the electrode.

6Troubleshooting
16
Insert batteries using correct polarity Batteries absent or installed incorrectlyNo display
Replace batteries
Perform either 2 or 3 point ion calibration
Low battery
Ion 6+ requires calibration
“O”
“---” on
display
a) Hydrate/soak pH electrode
b) Clean electrode
c) Allow time for electrodes
and solution to stabilise
a) Dry electrode
b) Dirty electrode
c) Temperature changing
Unstable
reading
a)
Release reading by pressing HO D/ENTER
b) Replace electrode
c) Use fresh buffer solutions
a) Display freezes
b) Faulty electrode
c) Inaccurate buffer
Not able
to calibrate
Check the probe/solutionmV out of range
Err
Use new calibration solution & recalibrate.
Ensure correct pH buffer group was selected.
Buffer value is out of tolerance
Er1
Repeat pH calibration using one or more
points which include 7.00 standard.
Upon exit of calibration mode, a 1-
point calibration was attempted with
a pH buffer other than 7.00.
Er5
Ensure that the value being measured is
within the range of the selected mode.
Confirm that electrode(s) are connected
and working properly.
Over range:
reading exceeds maximum value
Under range:
reading exceeds minimum value
Or
Ur
Problem Cause Solution
Troubleshooting

7
Specifications
17
Calibration Points 2 or 3 consecutive points; (0.1, 1.0, 10.0, 100.0, 1000)
pH Range 0.00 to 14.00 pH
Resolution 0.01 pH
Accuracy ± 0.01 pH
Slope Range 80 to 120%
Buffer 4.01, 7.00, 10.01
Temperature Range 0.0 to 100.0ºC
Resolution 0.1ºC
Accuracy ± 0.5ºC
Compensation Automatic/Manual (0 to 100ºC)
Millivolt Range -1000 to +1000 mV
Resolution ± 1 mV; ± 0.1 mV between -200 to 200 mV
Accuracy ± 2 mV; ± 0.2 mV between -200 to 200 mV
Specifications
Auto-Buffer Recognition Yes
Hold Function “HO”
Auto Shut Off After 17 minutes
Low Battery Indication “ O”
Operating Temperature 0 to 50ºC
Power Requirements (4) x 1.5V AAA Alkaline Batteries (included)
Battery Life Up to 500 hours
Meter Dim./Weight 15.7 x 8.5 x 4.2cm/255g
Features

8Replacements and Accessories
18
PT 105/5
PT 105/1
PT 105/2
PT 105/3
PT 105/4
PT 110/1B
PT 140/4
PT 110/3B
Buffer Tablet Pack pH 4/7/10.01
pH Buffer Solution pH 4.01 (500ml)
pH Buffer Solution pH 10.01 (500ml)
pH Buffer Solution pH 7.00 (500ml)
Electrode Care Pack (incl Electrode Storage Solution)
Replacement pH Electrode
Replacement Temperature Probe
Replacement ORP Electrode
PT 1252ORP Calibration Solution 255mV (500ml)
PT 1250
PT 1200
Deionised Water Wash Solution, 500ml
Micro 600 pH Complete Kit
Description Product Code
Replacements and Accessories

9
Warranty and Certification
19
Warranty
The Palintest Micro 600 pH Meter is guaranteed for a period of three years
from date of purchase - its associated pH electrode is guaranteed for a period
of six months from date of purchase. This guarantee excludes accidental
damage, or damage caused by unauthorised repair or misuse.
Should repair be necessary, please contact Palintest or your local distributor
quoting the serial number on the base of the instrument. This guarantee does
not affect your statutory rights.
Certificate of Conformity
Palintest Ltd certify this instrument, PT1200 has been tested and calibrated to meet
all performance specifications.
It is recommended that regular calibration of the probe is carried out in accordance
with the instruction manual to ensure correct operation.
The process used to verify this product is carried out in accordance with procedures
contained within Palintest’s certified ISO 9001 Business Management System.

V1-05/19
ZI INST 1200
For more information on Palintest products, contact your nearest
Palintest office or visit our website
Palintest td
Palintest House, Kingsway, Team Valley,
ateshead, NE11 0NS
Tel: [phone]
Fax: [phone]
[email protected] (UK)
[email protected] (International)
Palintest Australia and Asia Pacific
1/53 Lorraine Street,
Peakhurst Business Centre,
Peakhurst, NSW 2210, Australia
Tel: [phone]
Fax: [phone]
[email protected]
Palintest China
Room 1711, Fanli Mansion,
22 Chaowai Street, Chaoyang District,
Beijing, 100020, PRC
Tel: [phone]
Fax: [phone]
[email protected]
Palintest USA
400 Corporate Circle, Suite J
olden, CO 80401, USA
Tel: [phone]
[email protected]
www.palintest.com