AFLOWT UF-5 Series User manual

MULTICHANNEL ULTRASONIC

FLOW METER

AFLOWT UF

WITH CLAMP-ON TRANSDUCERS

VERSION UF-5xx d

OPERATION MANUAL

PART II

ISO 9001:2008

TABLE OF CONTENTS Page

INTRODUCTION.....................................................................................................3

1. OPERATING THE FLOWMETER....................................................................... 4

1.1. Controlling Indication .............................................................................4

1.2. Entering Settings Values and Commands .............................................6

2. CONFIGURING PRIOR TO OPERATION.......................................................... 7

2.1. Entering setting values for clamp-on PEAs............................................7

2.2. Entering Setting Values for wetted PEAsОшибка! Закладка не определена.

2.3. Defining zero offset dT0.........................................................................7

2.4. Determining the Additional Lag (Padd)..................................................8

2.5. Settings for Processing of Measurement Results .................................8

2.6. Flowmeter Date and Time Correction....................................................9

2.7. Setting Transition to "Daylight Saving" / "Standard" Time Mode............9

2.8. Setting KC and Kp factors......................................................................9

3. OPERATION PROCEDURE ............................................................................. 11

3.1. Displaying calculated values................................................................11

3.2. Controlling Batching.............................................................................11

3.3. Viewing logs and historical data...........................................................13

4. TROUBLESHOOTING ...................................................................................... 14

APPENDIX A. Display System....................................................................16

APPENDIX B. Displayed Parameters.........................................................25

APPENDX C. Functions and Identification of Keyboard Keys (Buttons).....33

APPENDIX D. Status Words and Troubleshooting.....................................34

This document covers multichannel ultrasonic flowmeters

"AFLOWT UF" of UF-510 d, -520 d, -522 d, -530 d, -540 d, -542 d,

-544 d versions with clamp-on transducers, and is intended as a guide

for its proper use.

LIST OF ABBREVIATIONS

PEA

USS

- Secondary measuring converter

- Pipeline section

- Error

- Electro-acoustic converter

- Ultrasonic signal.

NOTE. Words in the text marked in bold, for example, Settings cor-

respond to the items displayed on the flowmeter's screen.

1. OPERATING THE FLOWMETER

Flowmeter’s operation in various modes can be controlled from the

CS (secondary measuring converter) keyboard via the hierarchical

menu system and indication windows shown on the display, or from a

PC either via serial RS-232, RS-485 interfaces or via Ethernet.

1.1. Controlling Indication

1.1.1. To control the flowmeter from the CS keyboard, you use the hierarchical

menu system (see Appendix A) consisting of the main menu, submenus

and windows which give access to the lists of commands and options.

The composition and structure of the main menu (Fig.1) is constant.

Number and contents of submenus and windows as well as settings

available for modification depend on the flowmeter’s operating mode.

1.1.2. The CS keyboard has eighteen buttons, functionality and description of

which are given in Appendix C.

The keyboard allows you to do the following:

- Navigate the hierarchical menu and windows

- Efficiently control indication on the display

- Input configuration data

- View data and status logs.

1.1.3. The display shows the menu (window) name which is displayed in the

first line of the LCD indicator, and menu items (options) which can be

moved up or down (see Fig.1).

Fig. 1. The Main menu.

1.1.4. To indicate a selected menu item, an option, a digit of a number or a

substring being edited you use the cursor. The cursor appearance and

position depend on whether it possible to modify the data indicated in

the current line. Your options:

- To navigate to a low-level menu (window)

- To modify a setting or a command (status) shown in this line

- It is impossible to modify the setting (for some settings, it is possible to

zoom indication in)

- To modify a digit which has the blinking cursor under it

- To modify the part of a line contents in angle brackets.

1.1.5. Number of lines (menu items, list options) indicated on the display can-

not exceed 3 at a time. Scroll direction indicators may therefore be

shown at the beginning of the first and the last lines of menu items (or

options). These indicators are triangles (see Fig.1) with vertexes show-

ing the directions where the cursor can navigate through the lines

(menu items, and settings).

Buttons , let you scroll the list up or down to select a menu

item (a setting).

When you press the button for the first time the cursor moves

one line up and stops between the scroll direction indicators. Subse-

quent pressings of the button start scrolling menu items (setting),

the cursor and the scroll direction indicators being fixed at that time.

When the last menu item (setting) is reached the cursor moves to the

last line and stops in the place of the lower scroll indicator.

The procedure of searching the list in the opposite direction using

button is similar.

1.1.6. To navigate to a lower level menu (window) or to activate a menu item

(a setting) you need to set this menu item (a setting) and the cursor 

( ) in the same line and press button .

To return to a parent window (menu) press button .

To leave active state without changing a setting value, press but-

ton , while pressing button first lets you give a new value to a set-

ting.

1.1.7. Several menus (windows) which have similar contents but different

ownership can be subsequently displayed in one menu (window).

Menu (window) ownership is indicated by the sequential number of out-

put, record in the menu (window) name line in the log or by specifying

the historical record logging range.

Whether sequential search of related menus (windows) is enabled,

it is indicated by symbol to the left of the menu (window) which con-

tains the sequential number. To navigate to another related menu (win-

dow) use buttons , .

1.1.8. You may choose the font of greater size to display settings and meas-

ured values. The window with zoomed indication opens after selecting

the name of a parameter and pressing button .

1.2. Entering Settings Values and Commands

1.2.1. To modify a setting value or a command you shall open an appropriate

menu (window), match the required line of the list with the cursor that

looks like and press button . You can set a new value either digit

by digit (numeric value) or by selecting it from the list.

1.2.2. Entering a numeric value digit by digit.

If you are setting a numeric value digit by digit, then after pressing

button cursor will transform to a blinking cursor positioned un-

der the first digit of a numeric value, or digit by digit setting window will

open with a similar blinking cursor under the first digit of a number.

To modify an existing value you have either to enter a new setting value

using buttons

…

or to change digits on their positions using but-

tons , .

Pressing button ( ) once makes the digit marked by the cursor

to increase (decrease) by one. To move the cursor to another digit,

press buttons , .

By pressing button you enter the assigned numeric setting val-

ue, while pressing button will cancel the procedure (return back to a

previous value).

1.2.3. Entering a setting value, a command or an identifier by selecting from a

list. If a setting value (command, identifier) is selected from a list, then

after pressing button cursor will transform into triangle brack-

ets around the setting value (command, identifier) which now can

be modified.

Pressing buttons , or , allows you to navigate through

the values. By pressing button you can enter the assigned numeric

setting value, pressing button enables you to cancel the procedure

(return back to the previous value).

2. CONFIGURING PRIOR TO OPERATION

2.1. Entering setting values for clamp-on PEAs

2.1.1. Open Settings / Main settings menu and enter:

- Transducer: Clamp-on –PEA type

- Mount. mode: Z-mode or V-mode –PEA mounting configuration.

Open Settings / Main settings / Install. settings menu and enter

the following setting values for each channel:

- Lcirc –average outside diameter circumference of the pipeline section

- Do –average outside diameter of the pipeline section

- Dtr –average outside diameter of the pipeline section in the longitudinal

plane of PEAs

- Wall mat –wall material of the pipeline section

- hw –average outside diameter of the pipeline section

- Coat. mat. –lining material of the pipeline section

- hcoat –pipeline section lining thickness

- Axial dist. calc. submenu

- Lx –measured distance between acoustic centres of the PEA pair

along the pipeline axis

- d –value of equivalent asperity of the inner wall of the pipeline section

- –kinematic viscosity of the liquid in the pipeline

- U–phase velocity for the PEA pair.

Axial dist. calc. submenu is used to enter the ultrasound velocity

in the measured medium Cx and read the recommended value Lx.

2.2. Defining zero offset dT0

2.2.1. Zero offset dT0 shall be defined when the flow in the pipeline is fully

stopped. Open Settings menu and select Calibration / Zero calibra-

tion / Automated / Run calibr line. Start calibration procedure by se-

lecting Start value. After calibration is stopped (to do this assign Stop.

value to Run calibr setting) and the device returns to ZERO CALIBR.

chan. X window, dT0 setting will be automatically set to the value cal-

culated by the flowmeter.

In case it is impossible to absolutely stop the flow of liquid in the

pipeline, you may determine zero offset as follows:

- When the flowrate value lies in the range 0.1Qmax –Qmax the dT0 set-

ting is defined according to the foregoing procedure –dT01

- For clamp-on PEA pairs with connected cables are reciprocally

swapped instead.

The required value of zero offset is calculated from the formula:

dT0 = 0.5 (dT01–dT02), µs. (1)

2.2.2. The calculated value is assigned to the dT0 setting in the flowmeter and

recorded to the log. After that, the initial installation of clamp-on PEAs is

restored.

2.3. Determining the Additional Lag (Padd)

2.3.1. The Padd setting value is determined as follows. Open Settings menu

and select Calibration / Add. delay calibr. / Padd CALIBR. chan. X

line and enter tabular value of sound velocity Cref. After that, you need

to activate Automated option and start calibration procedure (set Start

value for Run calibr. parameter). After calibration procedure is stopped

(to do this specify Stop. value for Run calibr setting) and you return to

Padd CALIBR. chan. X window, Padd setting will be automatically set

to the value calculated by the flowmeter.

The calculated value of Padd setting is logged into the check form

which is given in the Installation Manual.

NOTE. When measuring flowrate in water and heat supply sys-

tems, the ultrasound velocity is determined in accordance with Appen-

dix D of the Installation Manual. When measuring flowrate of other liq-

uids the ultrasound velocity is determined according to GSSD tables for

measured liquids or using special device (see Fig.D.1 in Appendix D of

the Installation Manual). The ultrasound velocity shall be entered into

the flowmeter 5 minutes after determining at the latest.

2.4. Settings for Processing of Measurement Results

2.4.1. Open Settings / Processing settings menu and enter setting value:

- Median –median averaging buffer size

- Mean –arithmetic averaging buffer size

- KP –exponential filter factor (0.95 by default)

- Inert. time –lag (it is not advisable to set it to less than 10 s)

- Accel. –maximum speed of flow velocity variation

-Cut. –minimal flowrate cutoff

-LW –low setpoint for flowrate

-UP –high setpoint for flowrate

- Vmax –correction of the flowrate value up to which volume calculation

is performed

- Flow sign –liquid flow direction sign

-Units –flowrate (volume) dimension

- Config. –flowmeter configuration.

2.4.2. It also necessary to check whether the displayed flowrate sign

("+" or "–") corresponds with the actual flow direction in the pipeline. In

case it does not correspond, it is necessary to check the correctness of

either PEA pair mounting or PEA pair connection considering the flow

direction. If mounting and connection are performed correctly you shall

check Flow sign setting value (sign).

2.4.3. Settings / System settings / Connection settings and Settings / Pe-

riphery settings menu lets you configure settings to coordinate work of

flowmeter outputs with inputs of connected devices and equipment (see

Figs A.6, A.7 in Appendix A and tables B.4, B.5 of Appendix B).

In case of necessity, Settings / System settings / Total flow re-

set lets you perform the totalizer zeroing procedure.

2.5. Flowmeter Date and Time Correction

2.5.1. To adjust date and time you shall select and activate Settings / System

settings / Time settings / Date (Time), and then using buttons ,

set the cursor to "day", "month", "year" ("hours", "minutes", "se-

conds") positions. Using buttons

…

or , modify selected

setting value in each position. Press button to enter the setting val-

ue, and to cancel entering (to return to previous value) press button .

2.6. Setting Transition to "Daylight Saving" / "Standard"

Time Mode

2.6.1. The flowmeter is capable of setting the device clock to "Daylight Saving"

/ "Standard" time automatically. The user can:

- Set the device clock transition mode

- Turn off the device clock transition functionality.

Two device clock transition modes are provided: standard and us-

er-defined.

In standard mode, the transition to "daylight saving" time takes

place at 2:00:00 a.m. of the last Sunday of March the clock being put

one hour forward, and to "standard" time at 3:00:00 a.m. of the last

Sunday of October the clock being put one hour back. In user-defined

mode, the user can set the transition time. In case the transition func-

tionality is turned off the device clock keep time countdown according to

"standard" time only.

2.6.2. To set the transition mode, activate Settings / System settings / Time

settings / Time mode change / Mode option and select one of the fol-

lowing values: standard or user-defined.

In the Standard mode, you may see the date and time of automatic

transitions to "daylight saving" and "standard" time in Daylight saving

time and Standard time windows, respectively.

In the User-defined mode, you can set time of transition to "daylight

saving" and "winter" time in Daylight saving time иStandard time

windows, respectively, following instructions in p.1.2.2.

If Mode setting is set to no change then Daylight saving time and

Standard time menu items become unavailable.

2.7. Setting KC and Kp factors

2.7.1. The KC (Kp) factor is calculated in Settings / Periphery settings /

Universal output X(Type frequency) / Setup / FREQUENCY

OUTPUT X(PULSE OUTPUT X) menu.

To calculate the KC factor, open FREQUENCY OUTPUT Xmenu

and first enter Qut, Qlt иFmax values according to p.1.2. After that, us-

ing buttons , align KC calcul. … line with the cursor and

press the button. Dots in the end of KC calcul. …line become en-

closed in the triangle brackets .

To start the calculation procedure you need to press button and

then, after dots within the triangle brackets are substituted with the

Start word –button. Consequently, Start is again substituted with

dots, and one line up the KC value is displayed.

2.7.2. To calculate the Kp factor open menu PULSE OUTPUT Xand enter

values for Qut and settings. Calculation procedure for Kp is similar to

that for KC.

If the calculated KC (Kp) value does not suit the user for whatso-

ever reason he can set a lesser value for KC (and a greater –for Kp).

Meanwhile, Qut, Qlt and Fmax (Qut and ) values do not change.

If, considering the frequency (pulse width), the KC (Kp) value is set

to a wrong value, the alarm message will appear.

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