Micronics portaflow 220, Руководство пользователя

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3: Operating Procedures
Portaflow 220 User Manual
17
(Issue 1.0)
Note: If you press ENTER before the transducers are fitted and connected to the instrument, the
instrument will detect a low signal strength and may indicate an ERROR condition.
Attaching and connecting the transducers
12. Fit the designated sensors to the pipe using the appropriate guide rails as described in Paragraph 2.2 .
Take great care to set the separation distance as accurately as possible.
13. Connect the red and blue coaxial cables between the sensors and the instrument, ensuring that the red
connector on the instrument is connected to the ‘upstream’ sensor.
Taking a flow reading
Flow monitoring
The
FLOW READING
screen is the one most used during normal monitoring operation. It shows the
instantaneous fluid flow together with totalised values (when enabled). In this mode you can select the flow
rate measurement units by pressing keys 7 (litres), 8 (Gallons) or 9 (m³), or change the display to show
velocity by pressing key 4.
3.4 Managing Named Sites
If you want to monitor a particular site location frequently you can set up a named ‘Site’ to store the
installation details, such as pipe dimensions and material, required to set-up the Portaflow 220 system.
These can then be recalled later when revisiting that particular location.
The instrument can store up to 20 sites, the first site is reserved for
QUICK START
and cannot be renamed;
subsequent sites are initially named
EmptySite1
through to
EmptySite19
.
11. The
SENSOR SEPARATION
screen now
displays a summary of the entered
parameters and informs you of the type of
sensor to be used, the mode of operation
and the distance to set up between the
sensors.
In this example it recommends type
A-ST
(A
standard) sensors operating in the ‘
Reflex
’
mode spaced
32.2mm
apart.
Take a note of these details.
SENSOR SEPARATION DD-MM-YY HH:MM:SS
Site : MySite
Pipe : 58.00 mm
Wall : 4.00
Sensors : A-ST Reflex
Temperature : 10.00°C 50.00°F
Set sensor separation to 32.2 mm
Press
to continue,
UV
to select sens.
14. Once the transducers have been fitted and
connected press the
ENTER
key.
15. This will take you from the
SENSOR
SEPARATION
screen to the
FLOW READING
screen via a signal-checking screen (shown
here).
Please wait..
Checking signals
****************************************
* *
****************************************
16. Check that the indicated signal strength on
the left of the screen is at least 2 bars
(ideally 3 or 4). If less than 2 bars are shown
it indicates there could be a problem with the
transducer spacing, alignment or
connections; or it could be due to an
application problem.
FLOW READING DD-MM-YY HH:MM:SS
Dim: mm
Signal
l/min
+Total: 0.00 litres
–Total: 0.00 litres
0.000