Hach-Lange LZU5395 User Manual [en, de, fr, it, es]
53 95
EC
53 95
0.1... 50.000 μS/cm 0... 80ºC
53 95
53 95
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0.1... 50.000 μS/cm 0... 80ºC
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Key points. Hauptteile.
Puntos clave. Points clé.
Punti chiave. Pontos chaves.
Protective cap.
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Schutzkappe.
Tapón protector.
Bouchon protecteur.
Tappo protettore.
Tampa protetora.
S8 connector.
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S8-Stecker.
Conector S8.
Connecteur S8.
Connettore S8.
Conector S8.
PG 13.5 thread.
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Montagegewinde PG 13,5.
Rosca de sujeción PG 13,5.
Filetage PG 13,5.
Filettatura PG 13,5.
Rosca de fixação PG 13,5.
Glass body.
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Glaskörper.
Cuerpo de vidrio.
Corps in verre.
Corpo in vetro.
Corpo de vidro.
Platinum electrodes.
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Platinelektroden.
Electrodos de platino.
Électrodes de platine.
Elettrodi di platino.
Eletrodo de platina.
(EU Directive 2002/96/EC)
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Conductivity cell
Introduction
The 53 95 is a cell for measuring low con-
ductivities. They include an integrated Pt
1000 temperature sensor.
SAFETY NOTE
Before use with hazardous substances,
find out about the relevant hazards,
protective measures, and what to do in
an emergency.
Cell preparation
Before use for the first time immerse
the electrodes in ethanol for 15 s, and
rinse with distilled water. Apply the same
procedure for a cell not being in use for
long time.
Installation
In immersion, insertion, flotation housings,
etc. with PG 13,5 thread.
See Housing instruction manual.
Cable. They are connected to coaxial
cables with an AS9 connector.
Calibration
Before measurement, calibrate with
standard solutions.
See User’s Manual of conductivity meter.
Measurements. Recommendations
• Both, calibration and measurement
must be performed under slight stirring
of standards and samples. The stirring
speed in the two cases should be identical.
• The sample must cover the measuring
• Ensure that during measurement there
• After measurement, rinse the cell with
The cell is made of glass, any abrupt manipulation could break it.
Maintenance
Keep the electrodes surface clean
If the thorough rinse with distilled water
is not sufficient, suitable solvent for the
elimination of sample rests can be used.
This solvent must not produce chemical
attack over the cell materials.
Inorganic contamination: Immerse
the cell in diluted hydrochloric acid or in
chromic acid. Afterwards rinse thoroughly
with distilled water.
Organic contamination: Use suitable
solvent (see cell’s materials), next utilize
alcohol and distilled water as in Cell preparation is described.
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Warning.
.
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.
electrodes
are not air bubbles over the measuring
electrodes.
distilled water or with sample to be
measured.
Do not apply any mechanical cleaning
over the platinum cell.
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53 95
Storage
Store the cell dry.
Life of the cell
The cell lifespan is unlimited if suitable
maintenance is applied and the cell does
not break.
Troubleshooting
... Reading 0 independently of the measured sample.
Broken cable.
Replace the cell.
... Unstable reading.
... Impossible calibration.
Dirty measuring electrodes or air
bubbles on their surface.
Clean or shake slightly the cell.
... The obtained readings differ a lot from
the real values.
Verify that the conductivity is covered
by the measuring interval of the cell.
Re-calibrate using standards in
good conditions.
.... slow cell response
Regenerate the cell.
Specifications
Approx. constant 0.1 cm
Measuring range 0.1 µS/cm to 50 mS/cm
Operating temp. 0 to 80 °C
Max. pressure 2 bar (25 ºC)
Body material glass
Electrode material platinum
Thread PG 13,5
Connector S8
Min. immers. depth 45 mm
GB
-1
QUALITY CERTIFICATE
The attached cell 53 95 has passed the
quality test and fulfils the following specifications:
5 %
• EC error
between 0.1 µS/cm and 50 mS/cm.
• Temperature error
0.5 ºC.
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