Pulsar Measurement Ultra 3, Инструкция по эксплуатации

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ULTRA 3 INSTRUCTION MANUAL
10
Functional Description
Ultra 3 sends a transmit pulse to the transducer, which emits an ultrasonic
pulse perpendicular to the transducer face, and the returned echo is sent
back to the Ultra 3. The time taken to receive the echo is measured and the
distance from the transducer face to the surface being monitored is
calculated.
Ultra 3 can measure from zero to 40m from the face of the transducer to the
surface being monitored, dependent on the application chosen and
transducer used.
The relays can be programmed to activate alarms, pump starters, or other
control equipment. There is an isolated 4-20 mA output that can be
connected to a recorder or PLC, to monitor, depending on application
chosen,
level, space, distance , OCM head, OCM flow or volume,
independently from that shown on the display. There is an RS232 port, so
that the Ultra 3
can be operated remotely by a PC or other equipment.
Ultra 3 can be programmed either by the built-in keypad (standard on all
wall and fascia units), or by PC via the RS 232 Serial Interface (optional). The
optional rack and panel mounted units are programmed with the Remote
Communicator, and one Communicator can program many Pulsar Ultra 3
units. All parameters are stored in non-volatile memory, so are retained in
the event of power interruption. A second backup copy of all parameters can
also be retained in the Ultra 3
memory, in case an alternative set of
parameters needs to be stored.
Three user definable control relays with individual setpoints and intelligent
performance logging software features ensure maximum control versatility.
The system utilises the unique DATEM software (
D igital A daptive T racking of
E cho M ovement). This is a proven digital mapping technique developed
especially for the Pulsar Ultra range, which gives the system unequalled
ability when identifying the “true target level” in the face of compe ting
echoes from pipes, pumps or other obstructions. Coupled with the powerful,
long-
range abilities of the ‘all new’ dB transducer range, the Ultra 3 lives up
to its reputation as the most reliable ultrasonic level measurement system
available.
The Pulsar Ultra 3
ultrasonic level controller has been designed to provide
maintenance-free fit and forget performance.