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Profitrode (length 12.5 cm)

Profitrode (length 12.5 cm)

6.0255.100

Profitrode (length 12.5 cm)

en

6.0255.100

Överblick över funktioner

Combined pH electrode with double-junction construction, installation length 11.3 cm. This electrode is suitable for pH measurements/titrations of samples:

  • that contaminate the reference system of the electrode (e.g., galvanic baths, samples containing sulfides)
  • for which potassium chloride c(KCl) = 3 mol/L cannot be used as reference electrolyte (e.g., reaction of potassium or chloride with sample)

The electrode is equipped with a flexible ground-joint diaphragm which is insensitive to contamination and which can be replaced when needed.

When c(KCl) = 3 mol/L is used as bridge electrolyte, storage in storage solution is recommended.
The bridge electrolyte can be easily replaced with a suitable electrolyte (e.g., potassium nitrate c(KNO3) = 1 mol/L (6.2310.010)), storage in the used bridge electrolyte.

The Profitrode is available in other lengths under the following article numbers:
- 6.0255.110: Length 17.8 cm
- 6.0255.120: Length 31.0 cm

Tekniska specifikationer

Shaft materialGlass
Measuring unitpH
Temperature range, long-term (°C)0 ... 80
Temperature range, short-term (°C)0 ... 100
pH range0...14
Max. installation length (mm)113
SGJ sleeveflexible ground-joint sleeve
Shaft diameter top (mm)12
Shaft diameter bottom (mm)12
Min. immersion depth (mm)30
Electrode plug-in headMetrohm plug-in head G
Indicator electrode shapeCylinder
Membrane glass typeU
Membrane resistance150 ... 500
Electrode zero point (mV)±15
Electrode slope>0.97
DiaphragmGround-joint diaphragm
Reference electrolyte typec(KCl) = 3 mol/L
Electrolyte flow rate (μl/h) at 10 cm water column5...100
Reference systemLL system
Resistance (kOhm)5

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    • Sleeve with SGJ 14/12 mm
    • 6.1236.050
    • Sleeve with SGJ 14/12 mm, polyethylene.
    • Sleeve with SGJ 14/12 mm, polyethylene.
    • PCS
    • 1
    • Storage vessel 
    • 6.2008.040
    • Together with 6.2008.050 storage vessel holder. it provides a support for the electrode on 807 Dosing Units.
    • <p>Together with 6.2008.050 storage vessel holder. it provides a support for the electrode on 807 Dosing Units.</p>
    • PCS
    • 1
    • Sleeve with SGJ 14/12 mm
    • 6.1236.050
    • Sleeve with SGJ 14/12 mm, polyethylene.
    • Sleeve with SGJ 14/12 mm, polyethylene.
    • PCS
    • 1
    • Storage vessel 
    • 6.2008.040
    • Together with 6.2008.050 storage vessel holder. it provides a support for the electrode on 807 Dosing Units.
    • <p>Together with 6.2008.050 storage vessel holder. it provides a support for the electrode on 807 Dosing Units.</p>
    • PCS
    • 1
    • Ground diaphragm
    • 6.1243.020
    • Spare ground-joint diaphragm for 6.0255.1XX Profitrodes
    • Spare ground-joint diaphragm for 6.0255.1XX Profitrodes
    • PCS
    • 1
    • Electrode cable / 1 m / F
    • 6.2104.020
    • For connecting electrodes with Metrohm plug-in head G to Metrohm instruments (socket F).
    • For connecting electrodes with Metrohm plug-in head G to Metrohm instruments (socket F).
    • PCS
    • 1
    • Electrode Cable 2 m / F
    • 6.2104.030
    • For connecting electrodes with Metrohm plug-in head G to Metrohm instruments (socket F).
    • For connecting electrodes with Metrohm plug-in head G to Metrohm instruments (socket F).
    • PCS
    • 1
    • Electrolyte 3 mol/L KCl (250 mL)
    • 6.2308.020
    • Electrolyte solution c(KCl) = 3 mol/L, (for Ag/AgCl reference systems)
    • Electrolyte solution c(KCl) &#61; 3 mol/L, (for Ag/AgCl reference systems)
    • PCS
    • 1
    • Electrolyte KNO3-1mol/L 250 mL
    • 6.2310.010
    • Electrolyte solution KNO3 1 M (reference electrolyte for combined silver electrodes)
    • Electrolyte solution KNO<sub>3</sub> 1 M (reference electrolyte for combined silver electrodes)
    • PCS
    • 1
    • Storage solution
    • 6.2323.000
    • Storage solution for all combined pH glass electrodes with reference electrolyte c(KCl) = 3 mol/L
    • Storage solution for all combined pH glass electrodes with reference electrolyte c(KCl) &#61; 3 mol/L
    • PCS
    • 1
    • pHit kit
    • 6.2325.000
    • Maintenance kit for pH electrodes The kit contains:50 mL cleaning solution; 50 mL 3M KCl solution; 50 mL storage solution; 2 Storage vessels; Instructions for use;
    • <p>Maintenance kit for pH electrodes </p><p>The kit contains:</p><ul><li>50 mL cleaning solution</li><li>50 mL 3M KCl solution</li><li>50 mL storage solution</li><li>2 Storage vessels</li><li>Instructions for use</li></ul>
    • PCS
    • 1
    • Cleaning solution 3 x 50 mL
    • 6.2325.100
    • Reliable measuring results over long periods of time can be guaranteed only if the pH glass membrane and the diaphragm receive preventive and regular care. Cleaning by etching with toxic chemicals or applying mechanical treatment to the diaphragm is not only complicated and expensive, it also accelerates the ageing of the pH glass electrode.The cleaning solution was developed for easy and gentle cleaning of pH glass electrodes. Regular use can considerably prolong their service life.This cleaning solution is also part of the pHit kit.
    • <p>Reliable measuring results over long periods of time can be guaranteed only if the pH glass membrane and the diaphragm receive preventive and regular care. Cleaning by etching with toxic chemicals or applying mechanical treatment to the diaphragm is not only complicated and expensive, it also accelerates the ageing of the pH glass electrode.<br />The cleaning solution was developed for easy and gentle cleaning of pH glass electrodes. Regular use can considerably prolong their service life.<br /><br />This cleaning solution is also part of the pHit kit.</p>
    • PCS
    • 1