PCE Instruments PHM 14 User manual

© PCE Instruments
PCE-PHM 14 pH Meter
User Manual
User manuals in various languages (français,
italiano, español, português, nederlands, türk, polski,
русский, 中文) can be found by using our
product search on: www.pce-instruments.com
Last change: 2 May 2018
v1.0
English

© PCE Instruments
Contents
1Safety notes........................................................................................... 1
2Features ................................................................................................. 2
3Applications........................................................................................... 2
4Specifications........................................................................................ 2
5Front Panel Description .......................................................................3
6Calibration ............................................................................................. 3
7Important information on the calibration ...........................................5
8Clear calibration.................................................................................... 6
9Measuring procedure............................................................................ 6
10 Delivery contents .................................................................................. 7
11 Warranty................................................................................................. 7
12 Disposal ................................................................................................. 7

© PCE Instruments
1
1 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.
Damage or injuries caused by non-observance of the manual are excluded from our liability and
not covered by our warranty.
•The device must only be used as described in this instruction manual.If used otherwise,
this can cause dangerous situations for the user and damage to the meter.
•The instrument may only be used if the environmental conditions (temperature, relative
humidity, …) are within the ranges stated in the technical specifications. Do not expose
the device to extreme temperatures, direct sunlight, extreme humidity or moisture.
•Do not expose the device to shocks or strong vibrations.
•The case should only be opened by qualified PCE Instruments personnel.
•Never use the instrument when your hands are wet.
•You must not make any technical changes to the device.
•The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner,
no abrasives or solvents.
•The device must only be used with accessories from PCE Instruments or equivalent.
•Before each use, inspect the case for visible damage. If any damage is visible, do not
use the device.
•Do not use the instrument in explosive atmospheres.
•The measurement range as stated in the specifications must not be exceeded under
any circumstances.
•Non-observance of the safety notes can cause damage to the device and injuries to
the user.
We do not assume liability for printing errors or any other mistakes in this manual.
We expressly point to our general guarantee terms which can be found in our general terms of
business.
If you have any questions please contact PCE Instruments. The contact details can be found at
the end of this manual.

© PCE Instruments
2
2 Features
- Multi-purpose pH meter
- Backlit display
- Auto calibration
- Compact and lightweight
3 Applications
- Aquariums
- Drinks
- Fish hatcheries
- Food processing
- Photography
- Laboratory
- Quality control
- Schools
- Pools
- Water treatment
4 Specifications
Measuring range
0 ... 14 pH
Resolution
0.01 pH
Accuracy
(at 23 °C ± 5 °C / after calibration)
0.07 pH at 5 ... 9 pH
0.1 pH at 4 .. 10 pH
0.2 pH at 1 ... 3,9 pH & 10,1 ... 13 pH
Input impedance
1012 Ohm
Sampling rate
approx. 1 second
Operating conditions
0 ... 50 °C / 32 ... 122 °F; < 80 % RH
Calibration
internally at pH7; pH 4 and pH 10
Power supply
externally 9 V
Current consumption
approx. 11 mA
Dimensions
89 x 57 x 31 mm / 3.5 x 2.2 x 1.2"
Weight
approx. 117 g / 4.1 oz
pH electrode connection
BNC

© PCE Instruments
3
5 Front panel description
1. Display
2. CAL / ENTER key
3. ESC key
4. ▼ (Down) key
5. pH electrode BNC socket
6. DC 9 V input socket
7. Positioning aid for adhesive pads
8. Apertures for fixing
6 Calibration
Prerequisites for calibration
- Ideally, the electrode will produce 0 mV at pH 7.00
- The ideal ambient temperature is 25 °C
Required equipment for calibration
- pH Electrode
- 2 pH solutions (pH 7.00 and pH 4.00)

© PCE Instruments
4
Calibration procedure pH 7
1) Rinse the electrode in distilled water completely.
2) Connect the pH electrode to the meter and immerse it into the relevant calibration solution.
3) Power on the instrument.
4) Press the "CAL" key. The desired calibration value pH 7 will appear.
The display will show:
7.00
pH
CAL
5) Press the "ENTER" key to confirm.
Calibration procedure pH 4
1) Rinse the electrode in distilled water completely.
2) Connect the pH electrode to the meter and immerse it into the relevant calibration solution.
3) Power on the instrument.
4) Press the "CAL" key. The desired calibration value pH 7 will appear.
The display will show:
7.00
pH
CAL
5) Press the ▼ (Down) key until the desired calibration value appears:
4.00
pH
CAL
6) Press the "ENTER" key to confirm.

© PCE Instruments
5
Calibration procedure pH 10
1) Rinse the electrode in distilled water completely.
2) Connect the pH electrode to the meter and immerse it into the relevant calibration solution.
3) Power on the instrument.
4) Press the "CAL" key. The desired calibration value pH 7 will appear.
The display will show:
7.00
pH
CAL
5) Press the ▼ (Down) key until the desired calibration value appears:
10.00
pH
CAL
6) Press the "ENTER" key to confirm.
7 Important information on the calibration
- Before and after immersing the electrode into a pH solution, rinse it with distilled water.
- Calibrate each pH solution twice, if possible.
- It is recommended to calibrate in two steps: pH 7 first, followed by pH 4, then calibrate pH 7
again and then pH 10.
- If the calibration solution deviates by 2 pH, “ERR”will appear in the display.

© PCE Instruments
6
8 Clear calibration
1) Power on the instrument.
2) Press the "CAL" key.
The following will be shown in the display:
7.00
pH
CAL
3. Press the ▼ (Down) key until the following appears:
CLr
pH
CAL
4. Press the "ENTER" key to confirm.
When the calibration has been cleared, the display will show:
End
9 Measuring procedure
1) Power on the instrument.
2) Immerse the electrode into the desired solution.
3) The instrument will display the measured pH value.
4) Rinse the electrode with distilled water.

© PCE Instruments
7
10 Delivery contents
1 x pH Meter PCE-PHM 14
1 x pH electrode
2 x adhesive pads
1 x 9 V power adapter
1 x user manual
11 Warranty
You can read our warranty terms in our General Business Terms which you can find here:
https://www.pce-instruments.com/english/terms.
12 Disposal
For the disposal of batteries in the EU, 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.
For countries outside the EU, batteries and devices should be disposed of in accordance with
your local waste regulations.
If you have any questions, please contact PCE Instruments.

© PCE Instruments
8
PCE Instruments contact information
Germany France Spain
PCE Deutschland GmbH PCE Instruments France EURL PCE Ibérica S.L.
Im Langel 4 23, rue de Strasbourg Calle Mayor, 53
D-59872 Meschede 67250 SOULTZ-SOUS-FORETS 02500 Tobarra (Albacete)
Deutschland France España
Tel.: [phone] Téléphone: [phone] Tel. : [phone]
Fax: [phone] Numéro de fax: [phone] Fax: [phone]
[email protected] [email protected] [email protected]
www.pce-instruments.com/deutsch www.pce-instruments.com/french www.pce-instruments.com/espanol
United States of America United Kingdom Italy
PCE Americas Inc. PCE Instruments UK Ltd PCE Italia s.r.l.
711 Commerce Way suite 8 Units 12/13 Southpoint Business Park Via Pesciatina 878 / B-Interno 6
Jupiter / Palm Beach Ensign Way, Southampton 55010 LOC. GRAGNANO
33458 FL Hampshire CAPANNORI (LUCCA)
USA United Kingdom, SO31 4RF Italia
Tel: [phone] Tel: [phone] Telefono: [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
[email protected] [email protected] i[email protected]
www.pce-instruments.com/us www.pce-instruments.com/english www.pce-instruments.com/italiano
The Netherlands Chile Hong Kong
PCE Brookhuis B.V. PCE Instruments Chile S.A. PCE Instruments HK Ltd.
Institutenweg 15 RUT: 76.154.057-2 Unit J, 21/F., COS Centre
7521 PH Enschede Santos Dumont 738, local 4 56 Tsun Yip Street
Nederland Comuna de Recoleta, Santiago, Chile Kwun Tong
Telefoon: [phone] Tel. : [phone] Kowloon, Hong Kong
Fax: [phone] Fax: [phone] Tel: [phone]
[email protected] [email protected] [email protected]
www.pce-instruments.com/dutch www.pce-instruments.com/chile www.pce-instruments.cn
China Turkey
PCE (Beijing) Technology Co.,Ltd PCE Teknik Cihazları Ltd.Şti.
1519 Room, 6 Building Halkalı Merkez Mah.
Men Tou Gou Xin Cheng, Pehlivan Sok. No.6/C
Men Tou Gou District 34303 Küçükçekmece - İstanbul
102300 Beijing Türkiye
China Tel: [phone]
Tel: [phone] Faks: 0212 705 53 93
[email protected] [email protected].tr
www.pce-instruments.cn www.pce-instruments.com/turkish