Hach-Lange 5337T User Manual [en, de, es, fr, it]

pH

53 37 T

pH

53 37 T

1

2

3

4

5

6

7

8

9

KCl +
glycerine

2

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

MP-4 connector (IP 67).

1

MP-4-Stecker (IP 67).

Conector MP-4 (IP 67)

Connecteur MP-4 (IP 67).

Connettore MP-4 (IP 67).

Conector MP-4 (IP 67).

PG 13.5 thread.

2

Montagegewinde PG 13,5.

Rosca de sujeción PG 13,5.

Filetage PG 13,5.

Filettatura PG 13,5.

Rosca de fixação PG 13,5.

Reference element.

3

Referenzelement.

Elemento de referencia.

Élément de référence.

Elemento di riferimento.

Elemento de referência.

Internal diaphragm.

4

Internes Diaphragma.

Diafragma: interno.

Diaphragme interne.

Diaframma interno.

Diafragma interno.

Solid electrolyte.

5

Festelektrolyt.

Electrolito sólido.

Électrolyte solide.

Elettrolita solido.

Eletrólito sólido.

Pt 1000 temperature sensor.

6

Temperatursensor Pt 1000.

Sensor de temperatura, Pt 1000.

Capteur de température, Pt 1000.

Sensore di temperatura, Pt 1000.

Sensor de temperatura, Pt 1000.

Diaphragm: open circular.

7

Diaphragma: offener Ring.

Diafragma: abierto circular.

Diaphragme: ouvert circulaire.

Diaframma: aperto circolare.

Diafragma: aberto circular.

Sensitive glass membrane.

8

Sensitive Glasmembran.

Membrana sensible.

Membrane sensible.

Membrana sensibile.

Membrana sensível de vidro.

Storage protector.

9

Lagerungsschutz.

Protector de almacenamiento.

Tube protecteur de stockage.

Protettore per la conservazione.

Protetor para armazenamento.

(EU Directive 2002/96/EC)

3

pH electrode 53 37 T

Introduction

The 53 37 T is a low maintenance pH
electrode for waste water.

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
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.

This electrode is not recommended for in­stallation on pipe.
Cable. They are connected to coaxial ca­bles with an MP-4 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.

Do not use for cleaning solutions
with pH<2. They provoke rapid alteration
of the solid electrolyte.

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.

Reference system contamination.

Clean, regenerate, replace the elec­trode.

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

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

Clean, regenerate, replace the elec­trode.

.

. They can be

.

4

GB

Storage

Place the electrode in the storage protec­tor with KCl + glycerine.

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 2 to 14 pH
Operating temp. 0 to 80 °C
Max. pressure 2 bar
Reference element cartridge
Diaphragm open circular
Electrolyte solid
Body material glass
Thread PG 13,5
Connector MP-4
Temperature sensor Pt 1000
Min. immersion depth 12 mm

Applications

Dirty water, with mud, waste water, etc.

Limitations

Solutions with pH < 2, very clean water,
distilled and de-mineralised water.
Temperature > 80ºC. Pressure > 2 bar.

CERTIFICATE OF QUALITY

The attached electrode 53 37 T 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.

• Temperature error

0.5 ºC.

5