Hach-Lange 5300 User Manual [en, de, es, fr, it]

pH

53 00

pH

53 00

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KCl 3M

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Key points. Hauptteile.
Puntos clave. Points clé.
Punti chiave. Pontos chaves.

Protective cap.

1

Schutzkappe.

Tapón protector.

Bouchon protecteur.

Tappo protettore.

Tampa protetora.

S8 connector.

2

S8-Steckkopf.

Conector S8.

Connecteur S8.

Connettore S8.

Conector S8

PG 13.5 thread.

3

Montagegewinde PG 13,5.

Rosca de sujeción PG 13,5.

Filetage PG 13,5.

Filettatura PG 13,5.

Rosca de fixação PG 13,5.

Gel electrolyte.

4

Elektrolytgel.

Electrolito gel.

Électrolyte gel.

Elettrolita gel.

Eletrólito gel.

Reference element.

5

Referenzelement.

Elemento de referencia.

Élément de référence.

Elemento di riferimento.

Elemento de referência.

Diaphragm: ceramic.

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Diaphragma: Keramik.

Diafragma: cerámico.

Diaphragme: céramique.

Diaframma: ceramico.

Diafragma: cerâmico.

Sensitive glass membrane.

7

Sensitive Glasmembran.

Membrana sensible.

Membrane sensible.

Membrana sensibile.

Membrana sensível de vidro.

Storage protector.

8

Lagerungsschutz.

Protector de almacenamiento.

Tube protecteur de stockage.

Protettore per la conservazione.

Protetor para armazenamento.

(EU Directive 2002/96/EC)

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pH electrode 53 00

Introduction

The 53 00 is a pH electrode for general use.
Low maintenance electrode, as it does not
require monitoring of electrolyte level.

SAFETY NOTE
Before use with hazardous substanc­es, find out about the relevant haz­ards, protective measures, and what
to do in an emergency.

Electrode preparation

• Remove the storage protector

• Verify that there are not air bubbles

inside the membrane . They can be
removed by shaking the electrode as a
clinical thermometer.

Installation

In immersion, insertion, flotation hous­ings, etc. with PG 13,5 thread.

See Housing instruction manual.

In some cases the electrode is installed,
with the help of sockets and adapters,
directly onto pipes.
Cable. They are connected to coaxial
cables with an AS9 connector.

Calibration

See pH-meter instruction manual.

Measurements. Recommendations

See pH-meter instruction manual.
Ensure that the electrode’s specifications are
adapted to the process.
Sample must cover the diaphragm

Maintenance

• Deposits forming on the electrodes,

caused by continual exposure of the sen­sors to a dirty or contaminated medium, is
one of the most frequent causes of prob­lems when measuring pH. When possible
it’s recommended to use a housing with
automatic sensor cleaning system.

• When an electrode gets contaminated,

the simple rinsing with distilled water is
not suffi cient. The most suitable cleaning
solution is one which acts in a more selec­tive way over the contamination (look for
regeneration solutions).

• Re-hydration. A “dry” electrode recovers

by immersing it in diluted HCl solution
for several hours. It is recommended to
read the information supplied with the
electrode’s regenerating solutions.

.

.

Troubleshooting

... the meter always shows the same pH

value.
Short circuit in the electrode or cable.
Substitute the cable or the electrode.

... shifting of pH values.

Reference system contamination.

Replace the electrode

... unstable reading.

Diaphragm blockage.

Clean, regenerate, replace the elec­trode.

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GB

... impossible to perform calibration.
... very slow response.

Dirt on the diaphragm or the mem­brane.
De-hydrated membrane.
Electrode ageing or wear.

Clean, regenerate, replace the elec­trode.

Storage

The connector should be protected from
humidity by the protective cap .
Place the electrode in the storage protector

with KCl 3M sat. AgCl.

Life of an electrode

The average life expectancy of a pH pro­cess electrode oscillates between 6 or 12
months, depending on the working condi­tions.
Electrodes exposed to high temperatures do
not last as long. Very alkaline mediums also
reduces the life span of electrodes.

If an electrode has too short life span,
less than three months, ask us about it.
Probably there is a more suitable elec­trode for the application.

Specifications

Measuring range 0 to 14
Operating temp. 0 to 80 °C
Max. pressure 6 bar
R. element Ag/AgCl wire
Diaphragm ceramic
Electrolyte gel

Body material

Thread PG 13,5
Connector S8
Immersion depth 17 mm

interior glass /

exterior polycarbonate

Applications

Swimming pools, drinking waters.
Aqueous samples in general.

Limitations

Low conductivity, dirty or viscous solu­tions. Products with colloids or solids in
suspension. Samples containing substanc­es which react with the silver ion.

CERTIFICATE OF QUALITY

The attached electrode 53 00 has passed
the quality test and follows the next speci­fications:

• Asymmetry potential < ± 15 mV.

• Sensitivity, pH 4 to 7 (at 25 ˚C) > 98%.

• Response time, pH 4 to 7 < 20 s.

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