IMP+ INSTRUCTION MANUAL
6
About the IMP+
Functional Description
The IMP+ level monitoring system is a highly developed ultrasonic level
measurement system which provides non-contacting level measurement for
a wide variety of applications in both liquids and solids. Its unique design
allows for both 3 wire and 2 wire (loop powered) configuration all within the
same unit.
Easy calibration and maintenance free “fit and forget” performance mean
that you can install the IMP+ Level Monitoring System rapidly and with
confidence. Two relays which can be configured for either alarm or control
functions, with fully programmable setpoints are provided when connected
as a 3-wire device, together with fault condition being indicated by the mA
output on both the 2 and 3 wire mode.
The IMP+ operates on the principle of timing the echo received from a
measured pulse of sound transmitted in air and utilises “state of the art”
echo extraction technology. The IMP+ comes in three models: IMP 3 with a
range from 0.20m (0.66 feet) to 3.00m (9.84 feet), IMP 6 with a range of 0.3m
(0.98 feet) to 6.00m (19.69 feet) and IMP 10 with a range of 0.3m (0.98 feet)
to 10.00m (32.81 feet).
The IMP+ can show level, space, distance, on the display. The relays can be
programmed to give an ‘ON’ and ‘OFF’ point for external control. There is a
4-20 mA output (non-isolated in 3 wire mode) that can be connected to a
remote chart recorder or PLC, to monitor level, space or distance, dependant
on the measurement mode selected, and provides a ‘fault condition’ alarm
of either 3.5mA or 22mA.
The IMP+ lid has an integral LCD display and 4 buttons which are used for
programming purposes when in Program Mode and as hot keys providing
additional information whilst in Run Mode.
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