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Counter Electrode

Reference Electrode

Sensing Electrode

O-Ring Seal

Capillary Diffusion Barrier

Electrolyte Reservoir

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Counter

Sensing

Reference

J177

V+

10K01

10K

IC1

IC2-

+

-

+

RGain

RLoad

10K

10K

Vout

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Counter

Sensing

Reference 10K01

IC1

IC2-

+

-

+

10K

10K

Vout

22K

10K

10KSetBias

10K

V -

Vref

RGain

RLoad

CounterReference 10K

01

IC1

-

+

-

+

10K

-

+

10K

10R

10K

10R

1K

SENSING - CO

SENSING - H S2

Sensing - HS2

Sensing - CO

IC2

IC3

J177J177V+ V+

10K

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.

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