11
ATTACH SENSORS yy-mm-dd hh:mm:ss
Attach sensor set A in REFLEX mode
Approx. max. flow:
7.22 m/s
press ENTER to continue
or SCROLL to select another sensor
If the Prop/Temp cable(black) is connected the
instrument will display a separation distance. If
it is not connected the temperature needs to
be entered. Once this is done press ENTER to
move on and read flow.
Main Menu - Select Sensor Set
When application information is programmed
into the instrument it selects the sensor set
and the mode of operation, i.e. REFLEX or
DIAGONAL. It is possible however to use
different sensors in different modes.
SELECT SENSOR SET yy-mm-dd hh:mm:ss
Sensor
set
A
Sensor
mode
REFLEX
Read flow
Exit and select default sensor
This option is available for two main reasons.
Firstly, from the data entered, lets assume that
the instrument has selected “sensors should
be mounted in DIAGONAL MODE”. It may be
that this is not possible in the case of a
partially buried pipe. Under these
circumstances, provided that the velocity is low
enough it is possible to select another sensor
set that will allow the sensors to work in
REFLEX mode (See page 2). By changing the
Sensor mode from Diagonal to Reflex it should
be possible to measure the flow on this
particular application with the same
transducers. If there is a need to change
transducers, always select the sensor set that
will measure the range of larger pipes and
higher flows.
SITE SENSOR ERROR yy-mm-dd hh:mm:ss
Cannot READ FLOW because
pipe is too large/small for sensor set
Press ENTER to continue
Sensor Mode
Selecting
Sensor mode
allows the user to
choose which method of clamping the sensors
to the pipe is required. The default would have
been displayed on the previous screen, but
Sensor mode
can be selected to give the user
a choice between Reflex and Diagonal.
Double reflex
can only be used on pipes
between 20mm and 30mm.
Triple reflex
mode
can only be used on pipes less than 20mm.
Both of these modes of operation are designed
to increase the low flow performance of the
instrument. Triple and double reflex are
selectable in the software but the set up of the
transducers will not be any different to normal
reflex mode.
Read Flow
Moving the cursor to
Read flow
and pressing
ENTER, takes the instrument to the display
which informs the user of the sensor set that
has been selected, in which mode of operation
the sensors have to be attached to the pipe
and also the maximum flow capable.
If at this point the maximum flow is too low or
to high in relation to the application, another
sensor set may be selected by pressing scroll.
Selecting EXIT will take you back to
MAIN
MENU
.
Exit and Select Default Sensor
Main Menu - Data Logger
(See also
KEYPAD OPTIONS-data logger)
The data logger can be accessed when in flow
mode via the keypad or from the main menu.
Accessing the logger via the keypad when in
flow mode allows the user to set up the logger.
e.g. start time, interval time etc. and view the
stored data.
Accessing the logger from the main menu only
allows the user to view the data that has
already been stored. If there is no data stored
in the memory the instrument will display the
following.
Transducers Velocity Range
Set ‘A’ 13mm pipe - 0.2 m/sec to 8 m/sec
Set ‘A’ 89mm pipe - 0.03 m/sec to 3 m/sec
Set ‘B’ 90mm pipe - 0.06 m/sec to 6 m/sec
Set ‘B’ 1000mm pipe - 0.02 m/sec to 1.3 m/sec
Set ‘C’ 300mm pipe - 0.07 m/sec to 7 m/sec
Set ‘C’ 2000mm pipe - 0.02 m/sec to 2 m/sec
Set ‘D’ 1000mm pipe - 0.04 m/sec to 4 m/sec
Set ‘D’ 5000mm pipe - 0.02 m/sec to 2 m/sec
