Crison 50 59 P Manual De Instrucciones página 11

Storage
Place the sensor in the storage protector
ductivity standard 1413 µS/cm).
Troubleshooting
... the multimeter always measures the same value.
Short circuit in the sensor or cable.
Substitute the multisensor.
... fortuitous reading.
Broken cable.
Substitute the multisensor.
... 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 multisensor.
Specifications
pH measuring range
Conductivity range
Operating temp.
Reference element
Diaphragms
Electrolyte
EC electrodes
Body material
Temperature sensor
Min. immersion depth
Applications
• Agriculture: irrigation waters, hydroponic culture, ecological re-
search, etc.
• Industry: industrial waters, cooling towers, boiler waters, metal
polished, wastewaters, etc.
• Education: very useful for measuring pH and conductivity in prac-
tical labs and schools.
Limits
Products with colloids.
Samples containing HF.
Conductivity > 200.000 µS/cm.
QUALITY CERTIFICATE
The attached multisensor 50 59 P has passed the quality test and
follows the next specifications:
• Asymmetry potential < ± 15 mV.
• Sensitivity, pH 4 to7 (at 25 ˚C) > 98%.
• Response time, pH 4 to 7 < 20 s.
• EC error 5% between 20 µS/cm and 200.000 µS/cm.
• Temperature error 0,5 ºC.
with KCl 0.01 M (con-
0 to 14
20 µS/cm to 200.000 µS/cm
0 to 80 °C
sleeved Ag wire coated with AgCl
ceramic
gel
platinum
external: PC, internal: glass
Pt 1000
10 mm
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