Internal electrode
DISPLAY.
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AMPLIFIER & A/D CONVERTER
Reference electrode.
KCl solution
Junction between KCl soln and the solution sample.
HCl solution.
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Glass bulb with H+ sensitive coating.
(+) to PH meter (-)
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air inlet.
Saturated AgCl (aq) & KCl (aq) solution.
Inner Ag/AgCl Reference electrode
Salt bridge
Outer Ag/AgCl Reference Electrode
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glass membrane
0.1M HCl saturated with AgCl.
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Digital PH Meter.
Stand
Knob-1
Display screen.
Knob-2
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Knob-3.
Power Switch
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