Hach-Lange ORBISPHERE A1100 Family - Manual (Page 17)

15
Introduction
The cotton washers provide additional protection against the formation of deposits and residue
on the center electrode and anode, which prolongs the time period required between sensor
services.
The silicone discs are required for measurements in ultra-pure water or water containing
ammonia.
The Dacron ® mesh patches provide protection to the membrane when using a protection cap
with grille.
For details of the part numbers for re-ordering, please refer to Recharge kits for A1100 and
A110E sensors on page 42 .
3.2 Sensor components
The following illustration shows the assembled sensor with the storage cap and sensor collar
removed and the exploded view of the main sensor components. To remove the storage cap,
you will first have to unscrew and remove the sensor base.
Note: If a protection cap with grille is being used with the sensor, then a Dacron ® mesh will be positioned
between the protection cap and cartridge (components 2 and 3 in Figure 6 above).
Figure 6 Sensor components
1 - Protection cap locking washer 4 - Cotton washer
2 - Protection cap (illustrated without grille) 5 - Silicone disc
3 - Cartridge containing electrolyte and membrane 6 - Sensor body
7 - Plastic base