Portaflow 204 руководство

1.OPERATION

1.1Remove oxidization, bitumen or rubber from pipe surface where the transducer assembly is to be mounted.

COMMENT

Very thick asbestos, concrete, old porous cast iron tubes and steel pipes with scaled or badly corroded internal surfaces can weaken the signal and prevent the unit from operating correctly.

Straight pipe lengths either side of the flow sensors should be 20 diameters UPSTREAM and 10 diameters DOWNSTREAM.

See figures 1a and 1b, page 3.

1.3Position transducer assembly onto prepared section of pipe as recommended at 1.1. The fixed transducer (Blue) should be DOWNSTREAM from the floating transducer (Red). Strap to pipe securely using the ball chain attached to the rail.

1.4Turn the knurled lock nut for the fixed transducer ANTICLOCKWISE to contact pipe surface.

1.5Connect transducer assembly to the handset with the cables provided.

The guide rail assembly must be in alignment with the pipe axis and positioned as shown in figure 3b when attached to a horizontal pipe. If the sensor cables are connected in reverse the instrument will display a negative flow rate, but this will not affect the accuracy of the reading.

Do not over tighten. Do not lock the floating transducer until the ‘separation distance’ has been determined after programming the unit.

The Portaflow is now ready to program.

PROGRAMING-MAIN MENU

Switch 0n…

Micronics Ltd.

PORTAFLOW

204+3 V1.04 Press Enter to start

Main Menu

Press SCROLL up or down to move cursor to the required option and press ENTER to select.

MAIN MENU

Quick start

View/Edit Site Data

Sensor set

Data Logger

Set up RS232

Set up Instrument

Read flow

Main Menu — Quick Start

Selecting quick start allows the user to start entering application information. If the instrument has been used previously, it stores the last application data entered. If the unit is to be used on the same application the user can scroll immediately to Read flow on the menu, and press enter without spending time entering new data.

If the unit is to be used on a new application select QUICK START and proceed with the following routine. Use the scroll keys to select, and then press

ENTER.

QUICK START

Dimension units? mm

Inches

The instrument now asks for the Pipe outside diameter? After entering the outside diameter in millimetres press

ENTER.

Pipe wall thickness now appears on the display. Enter the pipe wall thickness in millimetres, then press ENTER.

Pipe lining thickness now appears on the display. If the pipe you are measuring has a lining, enter the Pipe lining thickness. If nothing is entered the instrument automatically assumes there is no lining. Press ENTER to move on.

The instrument now displays Select pipe wall material. Using the scroll keys select from the options available and press

ENTER.

QUICK START

Select pipe wall material:

Mild Steel

S’ less Steel 316

S’ less Steel 303

Plastic

Cast Iron

Ductile Iron

Copper

Brass

Concrete

Glass

Other (m/s)

Note: The following will only be displayed if a lining thickness had been entered previously. Use the scroll keys to select the required material, and then press ENTER. If Other is selected, enter the sound speed of the lining in metres/sec.

QUICK START

Select pipe lining material:

Steel

Rubber

Glass

Epoxy

Concrete

Other (mps)

Select fluid type now appears on the display. Use the scroll keys to select the fluid type and press ENTER.

If the liquid you are measuring is not listed select Other and enter a liquid sound speed in metres/second. The sound speed information can be found in the back of the manual under Liquid Sound Speeds.

QUICK START

Select fluid type:

Water

Glycol/water 50/50

Lubricating oil

Diesel oil

Freon

Other (m/sec)

The instrument will now display the screen below and provide the user with details of the mode of operation and the maximum flow rate that can be achieved from the information entered. At this stage use the keypad to check maximum volumetric flows. If the display reads double bounce or treble bounce the unit has calculated a larger separation distance, but the transducers should still be set up in reflex mode.

Attach sensor set in REFLEX mode Approx. max. flow:

X.XX m/s ENTER to continue SCROLL changes mode

Select ENTER and the display will now ask you to enter a temperature.

Enter the application temperature and press ENTER. The display will now display a sensor separation distance.

Set sensor

Separation to

XXX

ENTER to continue

Follow the steps below to attach the guide rail and transducers to the pipe.

1.Take the guide rail and apply grease to the sensors as shown on page 3 fig 2.

2.Turn thumbscrews on the top of the guide rail clockwise to retract the sensors back up into the guide

rail. This will keep the grease away from the pipe until the guide rail is attached.

3.Now strap the guide rail to the pipe.

4.Screw down the fixed transducer and slide the moveable transducer to the required separation distance (front edge of block), and screw down on to the pipe.

5.Connect the RED and BLUE sensor cables, between the guide rail and the electronics.

6.Press ENTER to read flow.

The flow reading now appears on the display.

Batt CHRG

Sig 48%

(ERROR MESSAGES APPEAR HERE)

m/s

When reading volumetric flow the instrument will display a positive and negative total. Selecting OPTIONS from the keypad can reset these totals (See page 8).

The instrument will continually display the battery and signal levels. Signal levels should be above 30%, to obtain an accurate reading.

If there is an error with the site data entered or the application, the instrument will display an Error or warning message (See page 10), which will appear above the flow reading. If there is more than one message it will continually scroll between them.

To stop reading flow, press ENTER ONCE. The display will read the following.

This will stop all outputs

Press ENTER to EXIT SCROLL to return to READ FLOW

Pressing ENTER a second time will stop outputs and return the instrument to the

MAIN MENU.

Press the scroll key to return the instrument to READ FLOW.

Main Menu — View/Edit Site Data

The VIEW/EDIT SITE DATA mode can be accessed from the main menu. It allows the user to enter application details for up to 20 different sites. This facility is useful if a number of sites are being monitored on a regular basis. Application data can be programmed into each site before getting there! This also allows you to view the last data entered and edit if required.

When scrolling up/down the menu press ENTER to select at each prompt.

Note:

•Site Zero is always the QUICK START data and cannot be changed.

•Changing the data in any site is automatically saved when leaving this menu. Data will have to be re-entered to over ride the old data.

View/Edit Site Data — List Sites

Selecting LIST SITES allows the user to view the names of up to 20 sites, numbers 1-5 appear first.

Pressing ENTER will display sites from 6- 10. Pressing again will display sites 11-15, and again to display 15-20.

1 site not named

2 site not named

3 site not named

4 site not named

5 site not named Press ENTER to continue

View/Edit Site Data — Site Number Site number allows the user to enter the

number of the site data that you wish to be displayed. If the site has not been used then no data would be stored. You can now enter new application data.

View/Edit Site Data — Site Name

Site name allows the user to edit or enter a site name. Use the scroll keys to move the cursor to the letter/figure required and

press ENTER to select. Press zero, to return the instrument to VIEW/EDIT SITE DATA. The new site name will appear on the display.

SCROLL & ENTER

Select for space, 0 to end

abcdefghijklmnopqr stuvwxyz01234567890 >…………………<

View/Edit Site Data — Units

Dimension units allow the user to switch between millimetres and inches. The software converts all the application data in a particular site.

View/Edit Site Data — Pipe wall/lining thickness and Pipe wall/lining material can now be changed as required. Lining material is ignored if a lining thickness has not been entered. A selection of pipe wall/lining materials will be displayed when these options are selected.

View/Edit Site Data — Fluid type Fluid type allows the user to scroll

through a selection of fluid types. Select OTHER in the menu if a liquid is not mentioned. When Other (m/s) is selected the user must enter the liquid sound speed in m/s. This can be supplied by Micronics or found in the back of the manual under

Liquid Sound Speeds.

View/Edit Site Data — Read Flow

Selecting Read flow informs the user of the mode of operation and the approximate maximum flow rate. Press the appropriate key can change the units required.

Attach sensor set in REFLEX mode Approx. max. flow:

X.XX m/s ENTER to continue SCROLL changes mode

Pressing ENTER asks the user to enter a temperature in °C.