Micronics Portaflow 222, Руководство пользователя

Страница: 25 / 57

Micronics Portaflow 222 & 333 User Manual
Issue 3.1 Feb 20 Page 21
Sensors DD-MM-YY HH:MM:SS
->Sensor Set A-ST
Sensor Mode Reflex
Return to Summary Screen..
Main Menu..
READ FLOW DD-MM-YY HH:MM:SS
Q60.0%
2.754
l/min
+ 27.0 l/min..
- 0.1 l/min..
11. If you prefer to use a different configuration,
press the UP or DOWN arrow key to select a
different sensor set and mode.
NOTE: THE SENSORS SCREEN WILL BE DISPLAYED AUTOMATICALLY IF THE ENTERED
PIPE OD AND/OR TEMPERATURE ARE NOT VALID FOR THE CURRENTLY SELECTED
SENSORS.
3.2 Attaching and Connecting the Sensors
1. 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.
2. Connect the red and blue coaxial cables between the sensors and the test instrument, ensuring
that the red connector on the instrument is connected to the ‘upstream’ sensor.
3.3 Taking a Flow Reading
1. Once the transducers have been fitted and
connected, press the ENTER key on the
Summary screen.
2. This will take you to the FLOW READING
screen via a signal-checking screen.
3. 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.
4. Qxx.xx% indicates the signal quality and should have a value of 60% or greater.
The Read Flow screen is used most frequently during normal monitoring operation. It shows the
instantaneous fluid flow together with totalised values (when enabled).
If the flow reading exceeds a value of +/-9999 in the current units then a *10 multiplier will be
displayed above the units and the value displayed will be a tenth of the actual value. Similarly a *
100 and *1000 may be displayed on very large flow rates.
There are limitations on the use of these larger flow values with regards to logging of data and
setting the current and pulse outputs.
3.4 Flow Monitoring
From the READ FLOW screen you can:

Switch to the Read Energy display by pressing key 9.

Switch to the Read Velocity display by pressing key 4.

Switch back to the Read Flow display by pressing key 8.

Change the display units by pressing key 7.