Crison 50 21 T Manual Usuario página 11

Life of an electrode
The average life expectancy of a pH electrode is approximately one
year depending on the working conditions.
An electrode used for more than six months that does not response
appropriately after regeneration, must be replaced by a new one.
If an electrode has too short lifespan, less than three months,
ask us about it. Probably there is a more suitable electrode for the
application.
Specifications
pH measuring range
Operating temp.
Reference element
Diaphragm
Electrolyte
Body material
Min. immersion depth
Applications
Samples with very low conductivity.
Distilled water.
Samples with colloids, wines, paints, etc.
Very viscous sample, emulsions, creams...
Limitations
Temperatures > 60 ºC.
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 21 T has passed the quality test and fol-
lows the next specifications:
• Asymmetry potential < ± 15 mV.
• Sensitivity, pH 4...7 (at 25 ˚C) > 98%.
• Response time, pH 4...7 < 20 s.
• Temperature error 0.5 ºC.
0 ... 14
0 ... 60 °C
cartridge with Ag
sleeve
CRISOLYT
glass
15 mm
+ ion barrier
11