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3.3 Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument
could occur if not observed. A symbol on the instrument is referenced in the manual with a
precautionary statement.
Electrical equipment marked with this symbol may not be disposed of in European
domestic or public disposal systems. Return old or end-of-life equipment to the
manufacturer for disposal at no charge to the user.
3.4 Product hazards
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.
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,
regional and national regulations.
Personal injury hazard. Glass components can break. Handle with care to prevent cuts.
Section 4 Preparation for use
Make sure to remove the protective tape from the filling hole of new probes. A probe with a blocked
filling hole will not operate correctly.
New probes are filled with electrolyte filling solution and have a soaker bottle that contains storage
solution to keep the glass bulb and reference junction hydrated. Prepare the probe for calibration and
measurement as follows.
1. Prepare the sodium (ISA) rinse solution as follows:
a. Pour a minimum of 25 mL of deionized water into a wash bottle.
b. Add one sodium ISA powder pillow (0.4 g) for each 25 mL of deionized water and mix. For
example, to prepare 200 mL of sodium ISA rinse solution, refer to
2. Remove the protective tape from the filling hole. Refer to
3. Rinse the reference junction and glass bulb with the prepared sodium ISA rinse solution. Blot dry
with a lint-free cloth. Do not use deionized water.
4. If the inner filling solution is low, add more filling solution. Refer to
5. Condition the probe as follows:
a. Dissolve one Sodium Ionic Strength Adjustor (ISA) Powder Pillow in 25 mL of a 100 mg/L
sodium standard solution.
b. Open the filling hole.
C A U T I O N
C A U T I O N
C A U T I O N
N O T I C E
Figure
Figure
2.
3.
Fill the probe
on page 13.
English 5
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