ChannelMag PM2 Overview
The ChannelMag PM2 shown with
optional expansion mechanism The
ChannelMag PM Series is a bidirectional magnetic flowmeter
suitable for full and partially full pipes 20” - 120” (500
- 3000 mm) Ø. The PM Series is suitable for raw sewage,
storm water, river water or similar. The electrodes may be
permanently coated with sewage grease, algae, calcium carbonate
or similar, without the need to clean and without affecting
accuracy.
The ChannelMags are used singularly or in multiples to measure
mean velocity, dependant on pipe size. They are retained
by a magnetic enhancement band that is secured to the pipe
inside diameter by an expansion mechanism. As such, they
are ideal for use in concrete pipes since no holes or fixtures
are required for installation.
A high-resolution hydrostatic level transducer is built
into the ChannelMag PM sensors when used for partially filled
pipe measurement. The hydrostatic level transducer has automatic
compensation for change in barometric pressure. Alternatively,
an ultrasonic level transducer may be used and mounted separately
to the ChannelMag sensors.
A remote 4411e Pulsed Hybrid bidirectional transmitter calculates
volumetric flow from the mean velocity and level sensor inputs.
It displays rate and totals, and is programmable to show
net forward totals from storm water back up. Transmission
signals include two 4 – 20 mA outputs from separate
terminals, scalable pulse frequency output, RS232 protocol.
See separate data sheets for ChannelMag CM Series for rivers
and open channels, or diameters < 20” (500 mm) and
for the 4411e transmitter.
