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The OxyGuard Model 420 Oxygen Probe combines
the proven performance of the OxyGuard
Stationary probe with modern electronic technology.
Built into the probe is a two-wire 4-20
mA loop-powered transmitter. The probe produces a galvanically
isolated 4 to 20 mA output proportional to the oxygen concentration
of the medium in which it is placed. This capability permits
the Model 420 to communicate directly with any processing
, monitoring or control equipment which accepts a standard
4-20mA input.
Examples include display indicators, alarms,
data loggers and PC systems with A/D input boards. Because
the output is galvanically isolated, any number of probes
can be installed in the same water circuit without the risk
of ground loop interference.
For technical details see the Specifications page.
See a typical OxyGuard 420 Configuration diagram.
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