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Transmitter
The Transmitter is weather proof so it can be mounted
outside. Although EASZ-11 is protected to IP65 it is recommended
that it be installed inside another suitable enclosure.
The LCD display should not be facing full sunlight as this
can cause the display to fail. EASZ-11 should be fixed to
a wall or chassis plate using the four holes provided.
Do not install EASZ-11 in areas of high vibration
as this may cause failure.
Do not install EASZ-11 in the close vicinity of electrical
cable, SCR's or variable speed drives.
Transducer
The installation of the Transducer is the most important section
of this manual and has been divided up into 5 sub sections.
1. The Transducer must be fitted at least 0.35m above
the highest point of flow.
2. Always use the plastic isolation kit. This kit must
be fitted to a rigid support
and must not be allowed to swing in a breeze. Use mild steel
or a suitable plastic. Do not use stainless steel as this
can cause ringing.
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3. The Transducer must be perpendicular to the water flow it is
measuring with a clear line of sight and must not be above beams
or filling points.
4. If any large electrical equipment is installed in the vicinity,
then earthed steel conduit must be used.
5. An extension of up to 250m using RG62U cable is possible.
All
connections must be soldered together. It is advisable to install
the Transducer cable inside steel conduit, especially if large electrical
spikes (interference) are present.
Temperature Sensor
If there is a large change in temperature, a temperature sensor
should be used. The error in level due to the change in temperature
is 0.17% / °C. The Temperature sensor can be connected to the
Transmitter via a 2 core overall screened cable.
Please note that the Temperature sensor is being used to measure
the ambient air temperature and not the liquid temperature.
Do not mount the Temperature sensor in direct sunlight as this will
increase
the temperature reading.
