Omega PHB21, User Manual

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7.
PH Electrode Type
Electrode Description
Electrode Usage Instruction
31
1 - - rugged construction, in order to avoid ease breakage.
2 - - chemically inert.
3 - .
4 - - ease operation for electrolyte solution filling.
5 - - assuring stable readings..
6 - - chemically aggressively resistant.
7 - - avoid contamination with solutions that contain Silver, Mercury, Sulfite, etc.
Avoid AgCl preciptations. Provides quick readings on temperature variations.
8 - - contains reference electrolyte solution for transportation or storage.
9 - (on refillable electrodes only).
10 -
pH sensing Bulb
Glass Body
Punctual Ceramic
Seal
Low Noise Cable
Polypropylene Cap
Ionic Barrier
Transportation Cap
Electrolyte Fill Hole
Argental Reference.
1 - Before using the electrode, verify it’s body for possible mechanical defects or cracks
and in case it occur, replace it immediately.
2 - Take off the transportation cap and rinse the electrode with distilled water, remove
eventual crystallization at the diaphragm (3). The transportation cap must always be
used when transporting the electrode, avoiding dehydration of the bulb (1).
3 - Remove the seal (4) in order to establish Atmospheric Pressure (only applicable for
refillable electrodes) a n d c l o s e i t a g a i n .
4 - Eliminate possible air bubbles that may occur internally at the bulb (1), by shacking
the electrode vertically.
5 - On Refillable electrodes, the electrolyte level must be at a maximum of 10 mm
below the hole (9).
6 - Always refill, when necessary, the electrolyte level with 3 MKCl thru the hole (9). On
Bridge Electrolytic Electrodes, with the proper bridge (see table 1) thru the hole (9).
7 - When the Electrode is not in use, always immerse into electrolyte reference.
8 - To measure, just immerse the electrode into the sample, covering the diaphragm (3).
9 - Switching from one solution to other, always wash electrode with distilled water.
BULB (1)
DIAPHRAGM
(3)
REFILL HOLE
(9)
SEAL
(4)
TRANSPORT CAP (8)