Hach GA2X00 Manual Básico Del Usuario página 9

being used once. Refer to the documentattion supplied with the recharge kit for instructions on how
to use the anode cleaning tool for a GA2X00 sensor or for a A110X sensor.
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
maintenance.
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 a
grille.
Section 4 Installation
Multiple hazards. Only qualified personnel must conduct the tasks described in this
section of the document.
4.1 Sensor preparation
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
personal protective equipment appropriate to the chemicals that are handled. Refer to
the current safety data sheets (MSDS/SDS) for safety protocols.
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.
C A U T I O N
C A U T I O N
on page 3 for additional information.
English 9