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Storage
Place the electrode in the storage protector
AgCl.
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 re-
sponse appropriately after regeneration, must be replaced by a
new one. To avoid accidental breakage of the glass body elec-
trodes, the use of the working protector is recommended.
If an electrode has too short lifespan, less than three
months, ask us about it. Probably there are more suitable elec-
trode for the application.
Specifications
pH measuring range
Operating temp.
Reference element
Diaphragms
Electrolyte
Body material
Min. immersion depth
Applications:
• Aqueous samples in general.
Limits
Low-conductivity, dirty or viscous solutions.
Products with colloids or solids in suspension.
Samples containing sulphides, reducing sugars or other sub-
stances which react with the silver ions.
Temperatures > 80 ºC.
Warranty
HACH 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.
CERTIFICATE OF QUALITY
The attached electrode 50 50 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 ... 80 °C
Ag wire coated with AgCl
ceramic
gel
polycarbonate
18 mm
with KCl 3M sat.
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