Hach C1100 Basic User Manual page 8

• the suction side of any pumps
• a CO injection system or similar
2
Note: There may be situations where not all the above conditions can be met. If this is the case, or you have any
concerns, please consult your Hach Lange representative to appraise the situation and define the best applicable
solution.
4.2.2 Sensor insertion
• Insert the sensor straight into the flow chamber or socket. Do not twist the sensor.
• Hand tighten the attaching collar.
• Connect the sensor cable.
• Check for leaks; replace O-rings if product leaks are visible.
4.2.3 Sensor removal
• If not using the ORBISPHERE 32003 insertion/extraction valve you will need to shut off the sample
flow and drain the sampling circuit of liquid.
• Remove the sensor cable connected at the sensor end.
• Hold the sensor body in one hand to avoid rotation, and unscrew the collar with the other hand.
• Pull the sensor straight out of the socket or flow chamber.
• Install the sensor storage cap and sensor base (to protect the connection).
Section 5 Maintenance
It is recommended to perform standard maintenance on the sensor about once every six months,
though this will vary depending on the application. This involves sensor membrane replacement and
head cleaning as described in
Using the ORBISPHERE 32301 cleaning and regeneration center in addition to the standard
maintenance will allow for a noticeably extended sensor life.
5.1 Membrane replacement and sensor head cleaning
A sensor recharge kit (see
components necessary for this membrane replacement and sensor head cleaning process (i.e. a
cartridge containing the electrolyte and pre-installed membrane, a sensor cleaning tool, replacement
®
O-rings and Dacron
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.
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.
8 English
Membrane replacement and sensor head cleaning
Sensor recharge kit
mesh patches).
on page 5) is required as it contains all the
C A U T I O N
on page 8.