Hach TitraLab Basic User Manual page 78

Operating environment
Note the following points so that the instrument will operate perfectly and
have a long service life.
• Place the instrument firmly on an even surface. Do not push any
objects under the instrument.
• The ambient temperature must be 15 to 40 °C (60 to 104 °F).
• The relative humidity should be less than 80 %; moisture should not
condense on the instrument.
• A minimum clearance of 15 cm (5,9 in.) must be ensured above and
on all sides of the device; this allows the air to circulate and
prevents overheating of the electric parts. The dosage arm of the
stepper motor operating the syringe piston must be able to move
freely.
• Do not operate or store the instrument in extremely dusty, humid or
wet locations.
• Make sure that no liquids enter the instrument and immediately wipe
away any liquids that contact the instrument.
• Protect the instrument against vibrations, direct sunlight, corrosive
gases as well as strong magnetic and/or electric fields.
• Only use genuine replacement parts and accessories.
• The instrument must be serviced by the manufacturer's service
department at the prescribed intervals.
Installation
Installation of the burette
The burette dispenses the titrant, a Sodium Hydroxide (NaOH) base
that, depending on the area of application, is either 0,1 M or 0,5 M.
The burette comprises the syringe, stepper motor and valve. The
stepper motor and valve are already installed in the TitraLab; the syringe
has to be installed by the user.
English 78
WA R N I N G
Risk of injury to pinch points and cuts
Make sure that the titrator is never used/operated without the syringe cover.
Make sure that the system is only assembled by qualified and trained personnel.
N O T I C E
Warning against system damage
Make sure that the syringe is never operated without the attachment sleeve.
Only use genuine replacement parts and accessories.
The instrument must be serviced by the manufacturer's service department at the
prescribed intervals.
Note: Make sure that you do not misplace the attachment sleeve for the
syringe. It is not provided with a new syringe.
1. Push the syringe piston into the syringe body.
Slide the attachment sleeve fully onto the syringe so that the
narrow end points toward the piston.
2. Remove the syringe cover by unscrewing it.
3. Point the syringe tip upward, place the syringe into the bracket
such that the attachment sleeve is above the bracket.
4. With the narrow side facing down, carefully press the attachment
sleeve into the bracket.
Hold the attachment sleeve in the bracket and screw the syringe
onto the valve from below.
5. Withdraw the piston from the syringe and place it onto the screw in
the dosage arm.
Hold the syringe piston and turn the attachment screw on the
dosage arm into the thread in the piston.
6. Fix the syringe cover with six screws.