Mettler Toledo Pt4805-S7 Manual De Instrucciones página 17

Redox Electrodes
m
4 Notes
– M easurement in mV absolute, make note of temperature.
– T emperature compensation of absolute voltage readings is
unnecessary
– F ollow the instructions for your pH / mV meter or transmitter
5 Safety remarks
– G lass: breakage, glass splinters in measured medium risk of
injury
– W ear safety glasses and gloves when handling cleaning
agents
– W e recommend that the electrodes only be put into ope-
ration in conjunction with original products / accessoires
from METTLER TOLEDO. The electrodes may be operated
and serviced only by personnel familiar with the equip-
ment in question and who have read and understood these
instructions
6 Trouble-shooting
Table 3
Symptom
Reading drifts, reading
unstable, response
time > 1 min
Voltage U = 0
Voltage U = ∞
Reading unstable,
voltage U =
7 Factors that shorten life-time
– F or Xerolyt electrodes (type Pt4805-DXK): pH < 2, organic
solvents, vacuum and high temperature
– Solutions containing HF
– F or electrodes Pt 4805-DPA / DPAS: pressure > 2.5 bar
8 Environmental protection
Waste electrical products should not be disposed of
with household waste. Please recycle where facili-
ties exist. Check with your Local Authority or retailer
for recycling advice.
9 Literature
DIN-standards:
DIN 38404/Part 6
DIN IEC 66D (CO) 14
Redoxy theory booklet
TH-2-3-CH
© 04 / 2023 METTLER TOLEDO
Printed in Switzerland
Possible cause
Diaphragm dirty (disco-
loured)
Short circuit
Broken contact
Connector socket dirty
17
Remedy
Cleaning and con-
ditioning
Change cable, re-
place electrode
Remove deposits
mechanically
Redox Electrodes
59 906 023 D
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