Hach ORBISPHERE Series Basic User Manual page 9

Your sensor has been thoroughly cleaned and tested at the factory before shipment. It has been
shipped with a cartridge containing a membrane and electrolyte pre-installed to protect the sensor
head. This cartridge must be removed and replaced with a new one prior to first use to make it fully
operational. The new cartridge is included in the sensor recharge kit.
• Non-ATEX sensors (GA2400). The sensor has been delivered with two protection caps, one with
a grille and one without. Ensure you use the correct protection cap for your application. Refer to
Sensor configurations
• ATEX sensors (GA2800). The sensor has been delivered with a single protection cap.
The following instructions detail the steps required to make the sensor operational.
Note: It is advisable to perform this procedure with the plastic sensor base installed so as to avoid any damage to
the connection socket and also to provide a suitable stand for the sensor when required.
on page 3 for additional information.
English 9