Mettler Toledo Pt4805-S7 Manual De Instrucciones página 15

Redox Electrodes
1 Type summary
Type
Combina-
tion redox
electrodes
Metal
electrodes
2 Starting up
2.1 Inspection
On unpacking the electrode, inspect the shaft for any sign of
mechanical defects.
2.2 Preparation
a T ake off the watering cap
b R inse with distilled water
c R emove rubber cap
d C ondition and check operation of the redox electrode with
250 ml of METTLER TOLEDO redox buffer 220 mV (pH 7,
No. 51 340 065) at 25 °C.
– C onnect electrode to pH meter (set to mV range)
– I mmerse electrode in METTLER TOLEDO buffer
– R eading on mV meter must agree with the figure on the
flask (permitted discrepancy ± 5 mV)
– D iscrepancies of more than 5 mV must be allowed for in the
measured result
– I f discrepancy exceeds 10 mV, check the reference electrode
(see chap. 3 below)
a
c
2.3 Measuring
e R inse with distilled water
f C onnect electrode to a pH / mV meter or transmitter. Dip
electrode in measuring medium
e
f
© 04 / 2023 METTLER TOLEDO
Printed in Switzerland
Designation
Pt 4805-S7, Au 4805-S7
Pt 4805-DPA-S8,
Pt 4805-DXK-S8,
Pt 4805-DPAS-SC-K8S
Pt 4865-...,Pt 4805-KN-S7,
Pt 4825-60-S7
Pt 4805-60-88TE-S7
(requiring reference electrode, e.g. 363-S7)
Pt 805-S7, Au 805-S7
15
Relevant section
all
2, 3.2 / 3.3, 4 – 8
all
2, 3.1 / 3.2, 4 – 8
2, 3.2, 4 – 8
Redox Electrodes
59 906 023 D
en
b
d
f