User Guide

4
brane isolates the sensor elements from the
sample tested, but allows oxygen to enter.
A voltage is applied across the sensor, and
the oxygen that has passed through the mem-
brane reacts causing the current to flow, hence
determining a reading.
A convenient feature of the instrument is its
standby mode which keeps the probe polarized
and ready for instant measurements.
FUNCTIONAL DESCRIPTION PROBE
1. D.O. Probe
2. Protective Cap
3. Watertight Shielded Cable
4. Probe Body
5. O-Ring Seal
6. Silver Chloride Anode
7. Platinum Cathode (sensor)
8. Oxygen Permeable PTFE Membrane
9. Membrane Cap