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Spotlight: True Fail-Safe Level Switch
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SafePoint®
"True" Fail-Safe Level Switch |
The
SafePoint rotary paddle level switch with a self-validating design
detects material presence plus continuously monitors its own ability
to function. The analysis includes sensor health and system power
failure, which makes the SafePoint truly “fail-safe”.
The SafePoint incorporates patented use of Hall-Effect technology,
dual outputs to indicate both material presence and unit health,
and microcontroller technology to continuously protect bulk solids
processing and storage from the consequences of unknown sensor
failure by providing immediate indication of a sensor failure
and confirmation of proper operation.
Other practical features of the SafePoint include rugged construction,
motor shut-off when paddle becomes impeded to maximize motor life, twist On/Off
cover for bolt free removal, and local status indicating light (except hazardous
location models)
A practical application for the SafePoint would be to use this "true"
fail-safe product if undetected sensor failure could result in a
catastrophic process problem.
Click
here for more information on the SafePoint Level Switch or
contact Monitor Technologies LLC at 800-766-6486 in the USA and 630-365-9403
worldwide.
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2 is a non-invasive microwave device that uses Doppler-radar
technology to quickly and reliably monitor the flow of coal from
the feeder. The electronics for the SFD-2 are remotely mounted in
a safe area and provide relay contact closures that are connected
into the plants PLC or distributed control system.