Owner's manual

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
36
2.5 Reference electrode
2.5.1 Construction
The complete reference electrode (RE) 26 comprises two parts:
• 6.0728.0X0 Ag/AgCl-reference system (
100)
with ceramic diaphragm type D, diameter = 1 mm
6.0728.030 Reference system: LL-Ag/AgCl/c(KCl) =3 mol/L;
6.0728.020 Reference system: Ag/AgCl/c(KCl) = 3 mol/L;
supplied in a holder filled with c(KCl) = 3 mol/L
as standard
6.0728.010 Reference system: Ag/AgCl
supplied dry (option)
• 6.1245.010 Electrolyte vessel (
101)
with ceramic diaphragm type D, diameter=3 mm; holds a
second electrolyte solution (bridge electrolyte) and thus
forms with the 6.0728.020 Reference system a complete
reference electrode in the so-called double junction
construction.
The construction of the reference electrode and the designations of the individual
parts are shown in
Fig. 13.
Fig. 13: Construction of the reference
electrode
26 Reference electrode
100
Reference system (6.0728.0X0)
101
Electrolyte vessel (6.1245.010)
102
Electrical connection for cable
"RE"
103
Vent opening
104
Ag/AgCl filling
105
Electrolyte compartment with
internal electrolyte
106
Diaphragm support made of
PCTFE
107
Diaphragm
108
Vent opening
109
Electrolyte compartment with
bridge electrolyte
110
Diaphragm
10026
104
107
102
103
105
106
101
108
109
110