7
Signet PVDF Conductivity Sensors
Conductivity electrodes require little maintenance except for periodic cleaning in installations where contaminants are present.
• Keep metal surfaces clean and free of coatings.
Replacement Insulator, 2842 electrode only
• 2842 electrodes have a removable insulator so the internal cavity can be cleaned.
• After the insulator snaps into position it cannot be removed without damage.
• Order insulator replacement kit 3-2842.390 before attempting maintenance.
Insulator removal and replacement
A. Thread the screw into the insulator (8-32 thread).
B. Pull to remove the old insulator.
C. Clean any coating or deposits inside the electrode.
D. Insert the new insulator and press into place.
Maintenance
2842 Insulator
NOTE:
Contact the manufacturer for
replacement part number and cost.
9 mm
(0.34 in.)
41 mm (1.6 in.)
25.4 mm (1.0 in.)
14 mm
(0.55 in.)
3-2842.390 Insulator replacement kit
8-32 thread for removal
11 mm
(0.44 in.)
A
Electrode tip
(side view)
Electrode
B
Insulator
C
Internal contact
Cotton swab
¥ Clean internal and external surfaces
Electrode tip
(end view)
D
New Insulator
electrode tip
(side view)
