PCE Health and Fitness PCE-PH 22 User manual

Manual
pH-Meter PCE-PH 22
Version 2.0
Date of creation: 07.07.2016
Date of last change: 07.07.2016
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: [phone]
Fax: [phone]
[email protected]

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Contents
1Introduction ............................................................................................................. 3
2Safety notes ............................................................................................................. 3
3Specification ............................................................................................................ 4
4System description ................................................................................................. 5
5pH Calibrating procedure ....................................................................................... 6
5.1 Calibrating Consideration ........................................................................................................... 6
5.2 Requiring Equipment for Calibration .......................................................................................... 6
5.3 Calibration procedures ............................................................................................................... 6
6Measuring Procedure.............................................................................................. 7
6.1 pH measurement........................................................................................................................ 7
6.2 Data Hold.................................................................................................................................... 7
6.3 Data Record (Max., Min. reading) .............................................................................................. 7
6.4 Change Temp. unit °C, °F .......................................................................................................... 7
7Data Logger ............................................................................................................. 8
7.1 Save data.................................................................................................................................... 8
7.2 Call data...................................................................................................................................... 8
7.3 Delete data (Empty the memory) ............................................................................................... 9
8Replacement of Battery .......................................................................................... 9
9Replacement of pH Electrode .............................................................................. 10
10 Disposal ................................................................................................................. 11
11 Contact ................................................................................................................... 11
11.1 PCE Instruments UK ................................................................................................................ 11
11.2 PCE Americas .......................................................................................................................... 11

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1 Introduction
Thank you for purchasing a PH-Meter from PCE Instruments.
The water resistant PCE-PH 22 pH meter quickly detects the pH value and temperature. Thanks to its
split display it can show the pH value and temperature reading simultaneous with this pH meter. Its
durable enclosure is water resistant up to IP 67 and can be used in adverse weather conditions.
Recalibration of the device always ensures that readings are accurate and it is easy to do with the help of
the calibration kit. The automatic calibration is done via the keypad and without the need for calibration
screws. This pH meter has an electrode integrated into its enclosure and the readings are adjusted
automatically for temperature compensation.
2 Safety notes
Please read this manual carefully and completely before you use the device for the first time. The device
may only be used by qualified personnel and repaired by PCE Instruments personnel. There is no
warranty of damages or injuries caused by non-observance of the manual.
- The device may only be used in approved temperature range
- The opening of the case should only be done by qualified personnel of the PCE Instruments.
- The instrument should never be placed with the user interface (e.g. keyboard side on a table)
- You should not make technical changes on the device
- The appliance should only be cleaned with a damp cloth / use only pH-neutral cleaner
This user's handbook is published from PCE Instruments without any guarantee.
We expressly point to our general guarantee terms, they can be found in our general terms of business.
If you have any questions please contact PCE Instruments.

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3 Specification
Display
LCD, size : 20 mm x 28 mm.
* With bar graph indicator.
Measurement Range
pH
Temp.
0 to 14 pH.
-5 to 80 °C (23 to 176 ℉).
Resolution
pH
Temp.
0.01 pH.
0.1 ℃/ 0.1 ℉.
pH
Temp.
± 0.02 pH
* After calibration.
± 0.8 ℃/ ± 1.5 ℉.
pH Input Imped.
1012 Ω
pH Electrode
Included.* PE-12
pH Temp. Compensation
ATC (Automatic temperature compensation), build
thermistor Temp. Sensor.
Data Hold
Freeze the display reading.
Memory Recall
Maximum & Minimum value.
Sampling Time
Approx. 0.8 second
pH Calibration
pH 7, pH 4 or pH 10, 3 points calibration ensure
the best linearity and accuracy.
* Other calibration point that near the pH 7, pH 4,
and pH 10 are available.
Data Logger
Max. can save 100 point data with recall. Manual,
push the data logger button once will save data
one time.
Circuit
Custom one-chip of microprocessor LSI circuit.
Operating Temperature
Meter: 0 to 60 ℃( 32 to 140 ℉).
pH electrode : -5 to 80 ℃( 23 to 176 ℉).
Operating humidity
Less than 80 % r.H.
Power Supply
DC 1.5V battery ( UM-4/AAA ) x 4 PCs.
Power Consumption
Approx. 4.8 mA
Dimension
186 x 40 x 32 mm ( 7.3 x 1.6 x 1.3 inch ).
* Meter with pH electrode.
Weight
131 g/0.36 LB (included electrode).
Power off
Auto power shut off to save battery life.
Standard Accessories
Instruction Manual 1 PC
pH electrode, PE-12 1 PC
pH 7.00 buffer solution, PH-07A 1 PC
pH 4.00 buffer solution, PH-04A 1 PC
* PE-12, PH-07A, PH-04A are the consumer
accessory.
Optional Accessories
Meter : 0℃to 60℃( 32℉to 140℉)

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4 System description
3-1 Display
3-2 Power (Logger, ▲) Button
3-3 Hold (Enter, CAL) button
3-4 REC (℃/℉button, ▼) Button
3-5 pH electrode (Temp. sensor)
3-6 Battery compartment/Cover
3-7 Protection cover

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5 pH Calibrating procedure
5.1 Calibrating Consideration
The pH meter already calibrated by mV signal that simulated from the ideal pH ELECTRODE mV output
(base on 25 ℃environment). However due to (a) An ideal electrode will produce 0 mV at pH 7.00, but
most electrodes are slightly off. (b) The measuring environment temperature may not near 25 ℃(15 to 35
℃).
If intend to keep instrument combined electrode within high accuracy, it is necessary to make the
following calibration procedures.
5.2 Requiring Equipment for Calibration
1) Combination pH electrode ( PE-12, included )
2) Buffer solutions:
pH 7.00 buffer solution ( PH-07A, included ).
pH 4.00 buffer solution ( PH-04A, included )
5.3 Calibration procedures
pH 7 calibration
1) Place the electrode into pH 7.00 buffer solution ( PH-07A )
2) Power on the instrument by pressing the " Power button "
3) Press the „Hold button" once. The display will show the "HOLD" symbol.
Press the "▼ button" once, the display will show following screen in sequence.

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pH 4 calibration
1) Rinse the electrode in distilled water.
Place electrode into buffer pH 4.00 solution.
2) All the calibration procedures are same as the above pH calibration, except:
a. Change the buffer solution to pH 4.00 ( PH-04A )
b. The calibration screen value will change to 7.00 instead of 4.00
Remark:
Except calibrate pH 7, pH 4, meter also can calibrate pH 10.
The calibration procedures should start from the pH 7 at first, then pH 4 (or pH 10).
During the calibration, the circuit will sensing solution value automatically. If the buffer solution
value already beyond 7± 1 pH. 4± 1 pH, 10± 1 pH, the LCD will show " Err ".
When the LCD show the screen 2, it allow the user to adjust another calibration value precisely
(for example 7.01, 6.99...) by pressing the "▲ button", "▼ button".
Rinse the electrode in distilled water before change the buffer solution.
Repeat above pH, pH calibration procedures two times at least.
After calibration, the "Electrode sensing head" should insert into the "Protection bottle".
PE-12, PH-07A, PH-04A is the consumer accessory.
6 Measuring Procedure
6.1 pH measurement
After the pH electrode is calibrated, the unit is ready for measuring.
1) Power on the meter by pressing the "Power button"
2) Place the electrode into the measured solution, little shake the electrode and wait a few seconds
to let the ATC (automatic temperature compensation) sensor to stabilize with the solution'
temperature. The LCD will show pH value (up main display) and the temperature value (lower
display) at the same time.
3) After make the measurement, please rinse the electrode in distilled water.
After calibration, the "pH electrode" should insert into the "Protection bottle".
*PE-11, PH-07A, PH-04A is the consumer accessory.
6.2 Data Hold
During the measurement, press the "Hold Button" momentarily to hold the measured value. The
LCD will show a "HOLD" symbol.
Press the "Hold Button" once again to release the data hold function.
6.3 Data Record (Max., Min. reading)
1) The data record function records the maximum and minimum readings. Press the "REC Button"
a. Momentarily to start the Data Record function, shows " REC " on the display.
2) With the "REC" symbol on the display.
a. Press the "REC Button“ momentarily, the "REC MAX" symbol along with the maximum
value will appear on the display.
b. Press the "REC Button" momentarily again, the "REC MIN" symbol along with the
minimum value will appear on the display.
When display shows "REC MAX" or "REC MIN", press the "Hold Button"
momentarily will delete the max. (min.) value, the display will show the "REC."
only and execute the memory function continuously.
c. To exit the memory record function, press the "REC" button for 2 seconds at least. The
display will revert to the current reading, not show "REC".
6.4 Change Temp. unit °C, °F
Press the "℃/℉button" continuously at least two seconds, then release the button will change the Temp.
unit from ℃to ℉or ℉to ℃.

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7 Data Logger
The meter can save max. 100 point data into the memory circuit
7.1 Save data
1) Turn on the meter.
2) Press the "REC Button" momentarily, shows "REC" on the display.
3) Press the "Logger Button" momentarily will save one measuring value to memory, display will
show :
4) To exit the memory data logger (record) function, press the "REC" button for 2 seconds at least.
The display will revert to the current reading, not show "REC"
7.2 Call data
1) Turn on the meter.
Press the "Hold Button" momentarily, LCD shows "HOLD".
Following, press the "REC Button" continuously until display shows following , then release the
button.
2) Uses "▲ Button" or "▼ Button" to call the data that already saved into the memory.
Note : *During call the data, the " pH " unit will be flashed.
Press " Hold Button " ( 3-3. Fig. 1 ) will exit the data call function.

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7.3 Delete data (Empty the memory)
1) Turn off the meter first.
2) Press the "REC Button" continuously and not release, at the same time press the "Power Button"
momentarily, the display will show following screen, then release both fingers from the buttons.
3) Press "▼ Button" momentarily, display shows:
4) Press "Button" momentarily, the display shows:
Now all the saved data is deleted, memory will empty.
8 Replacement of Battery
1) When the LCD display show " “, It is necessary to replace the battery. However, in-spec
measurement may still be made for several hours after Low Battery Indicator appears before the
instrument become inaccurate.
2) To replace the battery, rotate and remove the "Battery Cover" take out the old batteries, install
new batteries:
DC 1.5V battery ( UM-4/AAA ) x 4 PCs.
3) When install the batteries, should make attention the battery polarity.
4) After install the batteries, reinstall the battery cover again.

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9 Replacement of pH Electrode
1) Take away the pH electrode and change the new unit
2) The pH electrode, PE-12 is the standard accessory of the meter. However
the PE-12 is also the consumer parts, its life is depend the working period
and the maintenance.
3) Rinse the electrode in distilled water after the usage.
4) "pH Electrode sensing "should insert into the "Protection bottle" if the meter
is not used.

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10 Disposal
For the disposal of batteries, the 2006/66/EC directive of the European Parliament applies. Due to the
contained pollutants, batteries must not be disposed of as household waste. They must be given to
collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use them or
give them to a recycling company which disposes of the devices in line with law.
If you have any questions, please contact PCE Instruments.
11 Contact
If you have any questions about our range of products or measuring instruments please contact PCE
Instruments.
11.1 PCE Instruments UK
By post:
PCE Instruments UK Ltd.
Units 12/13 Southpoint Business Park
Ensign Way, Southampton
Hampshire
United Kingdom, SO31 4RF
By phone:
02380 987 035
11.2 PCE Americas
By post:
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
33458 FL
USA
By phone:
561 320 9162