Sonic Driver POCKET PLUS-UFM Manuale utente

Made in Britain

POCKET PLUS-UFM Ultrasonic Flowmeter

Operating Instructions

Version 3.0

13th March 2023

Contents

1.0 Introduction

1.1 General Precautions

2.0 Keypad Functionality

3.0 FUNCTION KEY Functions

<1> Quick Start

<2> Transducer Positioning

<3>ATA/ETA %

<4> Flow Rate and Net Total

<5> Flow Velocity, Rate and Totals

<6> Flow Profile

<7> Energy Rate and Net Total

<8> Energy Rate and Totals

<9> Temperature

<.> Time Based Diagnostics

<0> Signal Based Diagnostics

4.0 Powering On

4.1 Power Off

5.0 User Interface (UI)

Quick Start Function

Installation Menu

Pipe Menu

Outer Diameter

Wall Thickness

Material

Roughness

Sound Velocity

WTG SOS

Liner Menu

Material

Sound Velocity

Thickness

Fluid Menu

Type

Temperature

Sound Velocity

Viscosity

Density

SHC

Inlet Temp

Outlet Temp

Transducer Menu

Type

Mounting

WTG Standoff

Calibration Settings Menu

Low Flow Cut

Corrected Flow

User Offset

User Scaling

Set Zero

Zero Tracking

Tup Method

Calculation Method

Display Units Menu

Flow Rate Units

Flow Rate Time Units

Totaliser Units

Energy Units

Energy Time Units

Measurement Units

Damping

Totalisers Menu

Net Flow Total

Pos Flow Total

Neg Flow Total

Flow Total Reset

Energy Total

Energy Total Reset

Load Defaults

System Settings Menu

LCD Backlit

Buzzer

Tag

Identifier

Test Display

Keypad

Memory

Clock

TOFM Scope

TOFM Values

Serial

Logger

System Info Menu

Model Code

Serial No.

HW Issue

SW Issue

Diagnostics Menu

Serial Menu

Mode

Baud

Parity

Logger Menu

Interval

Date

Time

Download

Erase

Load/Save Setups Menu

Save Option

Load Option

Delete Option

Appendix A Transducer parameters

1.0 Introduction

Congratulations on choosing the Sonic Driver TM POCKET PLUS-UFM TM clamp-on ultrasonic

flowmeter, figure(1).

Figure(1) The Sonic Driver POCKET PLUS-UFM.

The ultrasonic flowmeter (UFM) uses advanced Digital Signal Processing (DSP) and transit time

measurement techniques (Sonic Driver TM) to make accurate and reliable clamp-on ultrasonic flow

velocity measurements.

Using information about the installation, entered by the user, using the meters intuitive and easy to

us menu driven User Interface (UI) the UFM can display;

•Flow velocity

•Volumetric flow rate

•Mass flow rate

•Heat quantity flow rate

With the addition of a wall thickness measuring probe the UFM can also function as a pipe wall

thickness gauge (WTG).

The POCKET PLUS-UFM includes a date and time stamped 4MB datalogger and USB serial

communications functionality as standard.

When connected to a computer USB port or USB charger the UFM is powered over the USB. This

allows for extended datalogging sessions.

1.1 General Precautions

The content of this manual has been carefully checked and is believed to be accurate.

Sonic Driver Ltd assumes no responsibility for any inaccuracies that may be contained in this

manual.

In no event will Sonic Driver be liable for direct, indirect, special, incidental or consequential

damages resulting from any defect or omission in this manual, even if we are advised of the

possibility of such damages.

Sonic Driver Ltd reserves the right to make improvements to its manuals, instructions and products

at any time, without notice or obligation. The latest revisions may be found on the company web

site, www.sonic-driver.com

The UFM is a precision measuring instrument and should be handled and operated with care;

•Before operating the UFM for the first time read the installation manual and operating

instruction fully.

•Only use the UFM in the way and for the purpose that it is intended.

•Do not subject the UFM to bumps and shocks such as caused by dropping the UFM.

•Keep the UFM and its transducers and probes clean.

•Only use the UFM within its ambient temperature and stated level of Ingress Protection.

•Avoid excessive stress and bending of transducer cables and connectors.

•Avoid striking the clear display window and keypad with sharp objects.

2.0 Keypad Functionality

The UFM keypad offers several dual operation FUNCTION KEYS for quick setup and display.

Press any of the FUNCTION KEYS to go to the desired menu or display instantly. Note however

that depending on what the user is attempting to do the focus of certain keys will change.

On This key turns the flowmeter on.

When the user is navigating the UI and selecting a Menu screen;

1 Jump to MAIN MENU, the Quick Start option will be highlighted.

2 Jump to show Sensor Positioning screen, the user is prompted to select a

Transducer Type.

3 Jump to show ATA/ETA % diagnostic.

Run/Stop Jump to Measurement screen.

4 Jump to show Flow Rate and Net Total.

5 Jump to show flow velocity, flow rate, net, positive and negative flow totaliser.

6 Jump to show Reynolds Number, flow profile correction K Factor, Raw Flow

velocity and Corrected flow velocity.

^/+ Scroll up through Menu items.

7 Jump to show Energy Rate and Net Total.

8 Jump to show energy rate, net, positive and negative energy totaliser.

9 Jump to show Compensation, Inlet and Outlet temperature.

ENTER Step forward to selected Menu.

. Jump to show time based diagnostics.

0 Jump to show signal based diagnostics.

</Off Step back to previous Menu (When at Main Menu press and hold whilst progress bar

decrements to turn meter off).

V/- Scroll down through Menu items.

When the meter is in measurement mode and measuring the keypad keys have the following

functions;

1 Jump to MAIN MENU, the Quick Start option will be highlighted.

2 Jump to show Sensor Positioning screen, the user is prompted to select a

Transducer Type.

3 Jump to show ATA/ETA % diagnostic.

Run/Stop Jump to UI, show last menu accessed.

4 Jump to show Flow Rate and Net Total.

5 Jump to show flow velocity, flow rate, net, positive and negative flow totaliser.

6 Jump to show Reynolds Number, flow profile correction K Factor, Raw Flow

velocity and Corrected flow velocity.

^/+ Display contrast up.

7 Jump to show Energy Rate and Net Total.

8 Jump to show energy rate, net, positive and negative energy totaliser.

9 Jump to show Compensation, Inlet and Outlet temperature.

ENTER Step through all available display screens.

. Jump to show time based diagnostics.

0 Jump to show signal based diagnostics.

</Off No action.

V/- Display contrast down.

When the user is editing a parameter and the parameter editing cursor starts to flash the keypad keys

change function to become alphanumeric inputs;

1 Enter "1".

2 Enter "2".

3 Enter "3".

Run/Stop No action.

4 Enter "4".

5 Enter "5".

6 Enter "6".

^/+ Enter "+" symbol or scroll up though available parameter options in a list.

7 Enter "7".

8 Enter "8".

9 Enter "9".

ENTER Accept and Save changes and return to last Menu screen.

. Enter ".".

0 Enter "0".

</Off Return to last Menu screen, discard any changes.

V/- Enter "–" symbol or scroll down though available parameter options in a list.

3.0 FUNCTION KEY Functions

The keypad has a number of FUNCTION KEYS, which allow the user to instantly access functions;

<1> Quick Start

This key jumps to the Main Menu with the Quick Start option highlighted.

Press ENTER to start the Quick Start sequence or navigate the UI in the usual way.

<2> Transducer Positioning

This key gives access to a function which calculates the recommended transducer spacing and

displays diagnostics to aid transducer mounting and allows coupling optimization.

After entering the required Quick Start parameters, the spacing between the ends of the 2

transducers is calculated and displayed. Check the value displayed and space the transducers

accordingly.

If the Set Zero calibration function is enabled a zero flow calibration will also be made. It is vitally

important to ensure that there is zero flow during this procedure. If the UFM suspects that there is

flow in the pipe then a visual warning is given.

When the process is complete the user is returned to the UI.

<3>ATA/ETA %

This key gives access to a display of transit time ratio shown as a percentage value. This is a

measure of the ratio of the measured transit time to that which is expected given the parameters

entered by the user during Quick Start. It indicates if the transducer mounting and spacing is

accurate. The normal transit time ratio should be 100 ± 3% if the installation is correct.

It is acceptable to have to move one of the transducers up to ± 5mm to achieve a figure of 100%. If

more movement is necessary then one of the pipe parameters is probably incorrect. This is most

likely to be the value entered for pipe wall thickness as this is often taken from tables or it is an

estimated value.

<4> Flow Rate and Net Total

This key gives access to a display showing;

•Flow rate

•Net flow totaliser

<5> Flow Velocity, Rate and Totals

This key gives access to a display showing;

•Flow velocity

•Flow rate

•Net flow totaliser

•Positive flow totaliser

•Negative flow totaliser

Net total is simply the sum of the positive and negative flow totals.

<6> Flow Profile

This key gives access to a display showing;

•Reynolds Number

•Flow profile correction K factor

•Raw flow velocity

•Rolling average flow velocity

•Corrected flow velocity

The raw flow velocity is displayed without averaging and uncompensated for flow profile.

Rolling average flow velocity is raw flow velocity with average and flow profile compensation

applied.

Corrected flow velocity is rolling average flow velocity with zero flow cut off applied.

<7> Energy Rate and Net Total

This key gives access to a display showing;

•Energy rate

•Net energy totaliser

<8> Energy Rate and Totals

This key gives access to a display showing;

•Energy rate

•Net energy totaliser

•Positive energy totaliser

•Negative energy totaliser

<9> Temperature

This key gives access to a display showing;

•Fluid temperature

•Pipe inlet temperature

•Pipe outlet temperature

The fluid temperature is used for compensation of; speed of sound, density, viscosity and specific

heat capacity.

Indice

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