Greisinger GE 014, GE 014 BNC, GE 100, GE 100 BNC, GE 101 User guide
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Z03.0.0X.6C-02 page 1 of 4
Operation instructions
GE ...
pH- and reference-electrodes
Specification:
Reference
Type Description Operating range
GE 014
GE 014 BNC
GE 100
GE 100 BNC
GE 101
GE 101 BNC
GE 103
GE 103 BNC
GE 104
GE 104 BNC
GE 106
GE 106 BNC
GE 107
GE 108
GE 108 BNC
GE 109
GE 117
Low Cost pH-electrode
Standard pH-electrode
Injection-electrode
Double chamberelectrode
Special grindingelectrode
Electrode for VE-Water
pH-electrode with int.
Pt1000-Sensor
Standard electrode,
pressure resistant
pH-electrode with int.
Pt100-Sensor
pH-electrode with int.
Pt1000-Sensor
pH 2-12, 0-60°C,
> 200 µS/cm
pH 0-14, 0-80°C,
> 200 µS/cm
pH 2-11, 0-60°C,
> 200 µS/cm
pH 0-14, 0-80°C,
> 200 µS/cm
pH 0-14, 0-80°C,
> 20 µS/cm
pH 2-11, 10-80°C,
> 25 µS/cm
pH 0-14, 0-80°C,
> 200 µS/cm
pH 0-14, 0-80°C,
> 200 µS/cm
pH 0-14, 0-80°C,
> 200 µS/cm
pH 0-14, 0-80°C,
> 200 µS/cm
electrolyte
3mol/l KCl
3mol/l KCl
3mol/l KCl
3mol/l KCl
1mol/l KNO3
3mol/l KCl
3mol/l KCl
3mol/l KCl
(Gel)
3mol/l KCl
(Gel)
3mol/l KCl
(Gel)
3mol/l KCl
(Gel)
Connection Notes
cinch-plug
BNC-plug
cinch-plug
BNC-plug
cinch-plug
BNC-plug
cinch-plug
BNC-plug
cinch-plug
BNC-plug
cinch-plug
BNC-plug
DIN-/bananaplug
cinch-plug
BNC-plug
BNC- and
MiniDIN-plug
BNC-/bananaplug
Pressure resistant
up to 6 bar. With
PG13.5 thread
Pressure resistant
up to 6 bar. With
PG13.5 tread
Pressure resistant
up to 6 bar.
Pressure resistant
up to 6 bar. With
PG13.5 thread
Working-pressure: pressure-less cartridge (GE 014, GE 100, GE 101, GE 103, GE 104, GE 106)
medium pressure max. 6 bar, depending on assembly conditions (GE 107, GE 108, GE 109, GE 117)
Diaphragm: 2 ceramic-diaphragm (GE 014, GE 100, GE 101, GE 103, GE 107, GE 108, GE 109, GE 117),
3 ceramic-diaphragm (GE 106) or grinding-diaphragm (GE 104)
Working-system: Ag/AgCl, chlorinated Ag-wire (GE 014, GE 100, GE 106, GE 107, GE 108, GE 109, GE 117)
Ag/AgCl-cartridge (GE 101, GE 103, GE 104)
Diaphragm-shape: Ball (GE 014, GE 100, GE 103, GE 106), cone (GE 101) or
cylinder (GE 104, GE 107, GE 108, GE 109, GE 117)
Electrode-flagpole: GE 014 transparent plastics-flagpole, approx. Ø12 x 110 mm
GE 100, GE 103, GE 106 transparent plastics-flagpole, appr. Ø12 x 120 mm
GE 101 glass-flagpole, Ø12mm, with injection spike approx. Ø6 x 50mm,
Full length appr. 120mm
GE 104 glass-flagpole, Ø12mm, full length appr. 120mm
Head: appr. Ø6 x 30mm,
GE 107, GE 108, GE 109, GE 117 black plastics-flagpole, appr. Ø12 x 120 mm
Cable length: 1m (standard-length) or 2m (standard length for GE107, GE108, GE109 and GE117)
GREISINGER electronic GmbH
Fax: +49402 / 9383-33
D - 93128 Regenstauf, Hans-Sachs-Straße 26 Tel.: +49402 / 9383-0
eMail: info@greisinger.de
Z03.0.0X.6C-02 page 2 of 4
Introduction:
All electrodes are delivered checked and ready for measuring. The warranty period is 6 months for appropriate
treating.
pH-electrodes are wearing parts and have to be exchanged when the demanded values are not complying with,
even after thoroughly cleaning the electrode and regenerating it, depending on chemical and mechanical strain.
When using please consider that different substances in aqueous solution may affect glass and that chemicals may
react with the KCL-dilution in the electrode and could block the diaphragm
Examples: - protein-containing dilutions, as used in medicinal and biological measuring, the protein could be de-
natured by the KCl-dilution
- coagulated lacquers
- dilutions containing higher concentration of silver-ions
Other problems could happen when measuring ion-depleted and solvent-containing mediums. The problems occurring measuring these mediums could partly be solved by using our double-chamber electrode with appropriate
bridge-electrolyte (different, depending on use) (type GE 103)
Substances that deposit on the diaphragm, influence the measuring and have to be removed regularly. This can be
done with the help of e.g. automatic-cleaning-facilities.
Different fields of application
1. Measuring ion-depleted mediums (rainwater, aquarium-water, VE-water)
Our Type GE 104 (special-grinding-electrode from 20 µS/cm) or GE 106 (from 25 µS/cm)
2. Seawater-aquarium
Normal pH-single-rod measuring cells with 3 mol/l KCl (type GE 100)
3. Photo-laboratories
Double-chamber-electrode (type GE 103) with bridge-electrolyte. (front chamber 1 mol/l KNO
mol/l KCl). Watering-cap for storing the electrode has to be filled with 1 mol/l KNO
.
3
, rear chamber: 3
3
4. Swimming-pool
Standard pH-electrode with 3 mole/l KCl (type GE 100 or GE104)
5. Ground survey
Glass-electrode with different diaphragms (type GE 101). Use our pre-injection-spike! (our type VD120)
6. Cheese, fruits, meat
Injection-electrode (type GE 101). When measuring cheese, milk and other products containing protein, the
electrode has to be cleaned wit a special cleaning-fluid (pepsin-cleaning agent – e.g. contained in working and
calibration set)
Normal cleaning: Put the electrode for 10 min. in the pepsin-cleaning agent GRL100 (0,1 mole HCl with pepsin)
The lifetime of electrodes is normally at least 8-10 months, when treating and cleaning the electrodes thoroughly it
can be risen up to over 2 years. Exact statements can not be given, because it depends on the relative case of
operation.
When the pH X-Value can not be set, this is a sign that
a) the electrode is exhausted and has to be exchanged or
b) the buffer-dilution has exhausted (prepare new dilution). Prepared buffer-dilutions have a limited life time
(about 1 month) when using/calibrating it thoroughly (no procrastination of buffer-dilution-residua from one dilu-
tion to an other through cleaning and drying the electrode not enough)
Buffer-capsules have no lifetime limitations, therefor we recommend keeping a sufficient number of them in stock.
PH12-buffer-capsules (white) have to be stored in an exsiccator or stored together with drying agent.
The electrolyte (3mol/l KCl) should always be available for refilling, its also recommended to keep enough in stock.
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