PVL expands Omni Transducer range to offer
new level and flow measurement options.
PVL has expanded its range of Omni transducers
to include five new level and flow measurement options,
in addition to the existing pressure, temperature
and flow transducers.
All are available in either flat face, 45° tilted face or positionable
gooseneck versions, are sealed to IP67, and feature the patented
Omni-ring contact-less setting technology which eliminates the
need for the usual tiny front-fascia buttons that are often difficult
to use and which compromise environmental sealing.
Two new level sensing transducers have been added to the range
- a continuous level transducer which is custom-made to the
appropriate length, and an ultrasonic level transducer. New
flowmeter options include a gear type, a paddle type and a
turbine type. And further Omni products are in development,
including an infra-red temperature transducer.
Installation flexibility is a key feature of these products. The
whole body of the display unit rotates through 180° to present
the M12 connector at the optimum angle and the display head
for easy viewing. For ultimate flexibility, the gooseneck option
provides almost limitless freedom of positioning for the display
head and allows higher operating temperatures to be achieved.
All models in the Omni sensor range are constructed in a modular
way with regard to both hardware and software, making the
products both highly flexible and cost-competitive. A 16-bit
microcontroller with 14-bit A/D converter and 12-bit D/A converter
delivers fast processing speeds and high accuracy measurement.
The signal is displayed in engineering units using a back-lit LCD
graphical display which is easy to read even from a distance.
The device provides a standard 4-20mA output, and two switching
points can be programmed over the complete range, with either
PNP or NPN outputs.
Thoroughly engineered as robust industrial products, the transducers
feature 316 grade stainless steel for most wetted parts, and display
windows made from Swiss watch grade, toughened, scratch
-resistant glass. The transducers are set-up using the contact-less
Omni-ring which eliminates the need for any physical buttons or
switches on the device and makes it easy to program even when
wearing the thickest of gloves. The Omni-ring uses inductive
technology to enable switch points, hysteresis, engineering units,
output type and other parameters to be set, with the facility to
protect settings with a security code. Parameters are set and
adjusted by nudging the Omni-ring to the left and right. Once
programming is completed, the Omni-ring can then either be
reversed to prevent accidental re-sets, or removed completely.
Setting of parameters can be performed with the process on-
or off-line.
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July 2002
