Hach 50 71 Manual Del Usuario página 11

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 measur-
ing interval of the cell.
Re-calibrate using standards in good conditions.
.... slow cell response
Regenerate the cell.
Specifications
Approx. constant
Measuring range
Operating temp.
Body materials
Electrode material
Min. immersion depth
Applications
Low conductivity samples, highly purified and de-
minera lised waters, etc.
Ultrapure water, using as accessory the glass chamber
code 91 18.
Limits
Conductivities of over 30 mS/cm.
Very dirty samples.
Warning.
The measuring range is only guaranteed when working
with HACH conductivity meters
Warranty
HACH guarantees this cell against manufacturing de-
fects.
Validity: 6 months from shipment date.
Limitations:
• Accidental damage.
• Inadequate applications.
• Non-fulfilment of the recommendations.
• Normal wear and tear of the cell.
QUALITY CERTIFICATE
The attached cell 50 71 has passed the quality test and
fulfils the following specifications:
• error 5 % between 0,05 µS/cm...30 mS/cm.
• Temperature error 0.5 ºC.
0,1 cm
-1
0,05 µS/cm... 30 mS/cm
-30... 85 °C
glass
platinum
45 mm
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