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Crison 50 52 Manual Usuario página 11

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Storage
Place the electrode in the storage protector
electrolyte (Crisolyt, KCl 3M).
Troubleshooting
... the pH-meter always measures the same pH value.
Short circuit in the electrode, cable or connector.
Substitute the electrode.
... fortuitous reading.
Broken cable.
Substitute the electrode.
... impossible to perform calibration.
... very slow response.
Dirt on the diaphragm and/or the membrane.
De-hydrated membrane.
Electrode ageing or wear.
Clean, regenerate or replace the electrode.
Specifications
pH measuring range
Operating temp.
Reference element
Diaphragms
Electrolyte
Body material
Min. immersion depth
Applications:
• Measurements in "diffi cult" samples, creams, dirty or viscous
samples, etc.
• Measurements at high temperature.
• Distilled water.
Warranty
CRISON guarantees this electrode against manufacturing defects.
Validity: 6 months from shipment date.
Limitations:
• Accidental damage.
• Inadequate applications.
• Non-fulfilment of the recommendations.
• Normal wear and tear of the electrode.
QUALITY CERTIFICATE
The attached electrode 50 52 has passed the quality test and follows
the next specifications:
• Asymmetry potential < ± 15 mV.
• Sensitivity, pH 4...7 (at 25 ˚C) > 98%.
• Response time, pH 4...7 < 20 s
0 ... 14
0 ... 100 °C
sleeved Ag wire coated with AgCl
ring of porous PTFE
gel
glass
12 mm
with appropriate
11

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