Dwyer PUF User Manual

Series PUF Portable Ultrasonic Flowmeter Kit Installation and Operating Instructions

Bulletin F-PUF

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, USA

Phone: 219/879-8000 www.dwyer-inst.com

Fax: 219/872-9057 email: info@dwyer-inst.com

Table of Contents

1: General Description 1

1.1 Introduction 1

1.2 Principles of Operation 2

1.3 Supplied Hardware 3

1.4 PUF Instrument 4

1.4.1 Connectors 4

1.4.2 Keypad 5

1.4.3 Power supply and battery charging 6

1.5 Transducers 6

2: Installation 7

2.1 Transducer Positioning 7

2.2 Transducer Attachment (Type ‘A’ & ‘B’) 8

2.2.1 Preparation 8

2.2.2 Attaching the transducer holders 8

2.2.3 Fitting the transducers 9

2.3 Installing the USB Virtual Com. Port 10

3: Operating Procedures 11

3.1 Setting-up the Instrument 12

3.1.1 Using the instrument for the first time 12

3.1.2 Enabling/disabling the backlight 13

3.2 Using the Quick Start Menu 14

3.3 Using the System at a Regularly Monitored Location 17

3.4 Managing Named Sites 19

3.4.1 Setting up a new site 19

3.4.2 Changing a site name 20

3.5 Instrument Calibration 20

3.5.1 Adjusting the zero cut-off 20

3.5.2 Adjusting the set zero flow offset 21

3.5.3 Adjusting the calibration factor 21

3.5.4 Adjusting the roughness factor 22

3.5.5 Adjusting the damping factor 23

3.6 Performing Monitoring & Logging Functions 24

3.6.1 How to measure totalized flows (manually) 24

3.6.2 Display of totalizers 25

3.6.3 How to set up the basic logging application to memory 25

3.6.4 How to set up automatic (timed) logging mode 28

3.6.5 How to log directly to a PC 31

3.6.6 How to download logged data to a PC 32

3.7 Configuring the PUF Communications Interfaces 33

3.7.1 How to set-up an RS232 connection 33

3.7.2 How to set-up a USB connection 34

3.7.3 Working With Portagraph III 34

3.8 Configuring the Current / Pulse Output 35

3.8.1 Current output 35

3.8.2 Pulse output 37

3.9 Printing 39

3.9.1 How to print logged data using the RS232 printer 39

4: Maintenance & Repair 42

4.1 Introduction 42

4.2 General care 42

4.3 Warranty / Return 42

5: Troubleshooting 43

5.1 Overview 43

5.2 General Troubleshooting Procedure 44

5.3 Warning & Status Messages 45

5.4 Test Block 48

5.5 Microprocessor Reset Facility 49

5.6 Diagnostics Display 49

6: Specification 50

1: General Description

1.1 Introduction

This manual describes the operation of the Dwyer PUF portable flowmeter. The flowmeter is designed to work with clamp-on transducers to enable the flow of a liquid within a closed pipe to be measured accurately without needing to insert any mechanical parts through the pipe wall or protrude into the flow system.

Using ultrasonic transit time techniques, the PUF is controlled by a micro-processor system which contains a wide range of data that enables it to be used with pipes with an outside diameter ranging from 0.5 to 197 inches (13 to 5000 mm) and constructed of almost any material. The instrument will also operate over a wide range of fluid temperatures.

Easy to operate, the PUF standard features are:

• Large, easy to read graphic display with backlighting.

• Simple to follow dual function keypad.

• Simple ‘Quick Start’ set up procedure.

• 98k stored data points.

• Continuous signal monitoring.

• RS232 output.

• USB output.

• Pulse output (volumetric or frequency).

• 4 to 20 mA, 0 to 20 mA, or 0 to 16 mA output.

• Rechargeable battery.

• Battery management.

• Diagnostics.

Volumetric flow rates are displayed in L/h, L/min, L/sec, gal/min, gal/h, USgals/min, USgals/h, Barrel/h, Barrel/ day, m³/s, m³/min, m³/h. Linear velocity is displayed in meters or feet per second.

When operating in the ‘Flow Reading’ mode the total volumes, both positive and negative, are displayed up to a maximum 12-digit number.

The flowmeter can be used to measure clean liquids or oils that have less than 3% by volume of particulate content. Cloudy liquids such as river water and effluent can be measured along with cleaner liquids such as demineralized water.

Typical PUF applications include:

• River water.

• Seawater.

• Potable water.

• Demineralized water.

• Treated water.

1: General Description

Fluid flow

Separation

Distance

Separation

Distance

Separation

Distance

Separation

Distance

Reflex mode

Reflex mode (double bounce)

Reflex mode (triple bounce)

Diagonal mode

This is the mode most commonly used. The two transducers (U & D) are attached to the pipe in line with each other and the signals passing between them are reflected by the opposite pipe wall. The separation distance is calculated by the instrument in response to entered data concerning the pipe and fluid characteristics.

In this mode the separation distance is calculated to give a double bounce. This is most likely to occur if the pipe diameter is so small that the calculated reflex mode separation distance would be impractical for the transducers in use.

This illustration goes one step further to show a triple bounce situation. This would normally apply when working with very small pipes relative to the transducer range in use.

This mode might be selected by the instrument where relatively large pipes are concerned. In this mode the transducers are located on opposite sides of the pipe but the separation distance is still critical in order for the signals to be received correctly.

This mode might be used with the standard ‘A’ & ‘B’ transducer sets but for really large pipe installation the optional transducer set ‘D’ might be recommended.

Upstream

transducer

1.2 Principles of Operation

When ultrasound is transmitted through a liquid, the speed at which the sound travels through the liquid is accelerated slightly if it is transmitted in the same direction as the liquid flow, and decelerated slightly if transmitted against it. The difference in time taken by the sound to travel the same distance but in opposite directions is therefore directly proportional to the flow velocity of the liquid.

The PUF system employs two ultrasonic transducers attached to the pipe carrying the liquid and compares the time taken to transmit an ultrasound signal in each direction. If the sound characteristics of the fluid are known, the PUF microprocessor can use the results of the transit time calculations to compute the fluid flow velocity. Once the flow velocity is known the volumetric flow can be easily calculated for a given pipe diameter. The PUF system can be set up to operate in one of four modes, determined mainly by the pipe diameter and the type of transducer set in use. The diagram below illustrates the importance of applying the correct separation distance between the transducers to obtain the strongest signal.

Figure 1.1 Operating modes

1.3 Supplied Hardware

4 to 20 mA/

Test Block

RS232 Cable

USB Cable

Power Supply

Pulse Output

Cable

Transducer Cables (x2)

Chains (x2)

T ransducer

T ransducers (Sensors) (Ax2, Bx2)

Ultrasonic

Ruled Separation bar (x2)

PUF Instrument

Couplant

(Batt. Charger)

Holders (x2)

The PUF equipment is supplied in a rugged IP67 carrying case fitted with a foam insert to give added protection for transportation. The supplied components are shown in Figure 1.2.

1: General Description

Standard equipment

Optional equipment

Figure 1.2 Standard PUF equipment

• PUF instrument with backlit graphic display.

• Power supply - with UK, US, European adaptors. 110/240VAC.

• 4 to 20 mA/Pulse Output cable, USB cable and RS232-C cable.

• 2 lengths of chain each at 130 inches (3.3 m) long.

• Test block.

• Transducer cables (x2) 79 inches (2 m) long.

• Transducer set 'A' (Transducers x2).

• Transducer set 'B' (Transducers x2).

• Set of transducer holders for use with ‘A’ or ‘B’ transducers.

• Ruled separation bar (2-piece).

• Ultrasonic couplant.

• Manual.

• Transducer set 'D' – used for monitoring pipes of 50 to 197 inches (1.27 to 5 m) diameter, over a

temperature range of -4°F to +176°F (-20°C to +80°C). Kit is supplied in a separate case and includes the sensors together with ratchet straps and transducer holders for attaching to the pipe.

1: General Description

Keypad

LCD Display

Battery Charger

4 to 20 mA / Pulse Output RS232 / USB Output Transducer Cables

Reset pin-hole

1.4 PUF Instrument

The PUF is a microprocessor controlled instrument operated through a menu system using an inbuilt LCD display and keypad. It can be used to display the instantaneous fluid flow rate or velocity, together with totalized values, or act as a data logger. When operating in the data logger mode, the logged data can be output directly to a PC or printer using the RS232/USB interface or stored in the instrument’s non-volatile memory for downloading at a later time. Up to 98k logging events can be stored internally.

The instrument can also provide a variable current or ‘pulse’ (volumetric or frequency) output that is proportional to the detected flow rate. These outputs, which can be used with a range of external interface devices such as those found in building management or site monitoring systems, can be calibrated to suit a particular flow range.

1.4.1 Connectors

Figure 1.3 Instrument details

Transducer connections

The transducers are connected to two color-coded miniature coaxial sockets located on the top of the instrument. Using the red/blue connector cables provided, the upstream transducer should always be connected to the RED socket and the downstream transducer to the BLUE one for a positive flow reading. It is safe to connect or disconnect the cable while the instrument is switched on.

RS232 and USB connections

RS232 and USB cables are included as part of the PUF kit. These can be connected to the yellow 8-pin connector on the top of the flowmeter as shown in Figure 1.3. The RS232 cable is terminated with a 9-pin ‘D-type’ connector.

4 to 20 mA and Pulse output connection

The 4 to 20 mA / ‘pulse’ output cable should be connected to the green 7-pin connector on the top of the flowmeter, as shown in Figure 1.3. A single cable that can be adapted for use for either of these output functions is included in the PUF kit. The ‘tails’ on the free end of the cable must be terminated to suit the intended application.

Red – 4 to 20 mA positive Black – 4 to 20 mA negative White – Pulse output Green – Pulse return Thick Black – Cable screen

1: General Description

ON/OFF

Scroll UP

ENTER

Scroll DOWN

Numerical keypad

Scroll LEFT

Scroll RIGHT

with dual function keys

(SELECT)

Battery charger connection

The supplied battery charger is connected to the instrument by means of the gray 2-pin connector on the bottom of the unit, as shown in Figure 1.3.

Note: The above connectors have different key-ways to prevent incorrect cable connection.

1.4.2 Keypad

The instrument is configured and controlled via a 16-key tactile membrane keypad, as shown in Figure 1.4.

ON/OFF Key

The ON/OFF key is shown on the top left of the keypad. When turned ON an initialization screen is displayed on the LCD showing the instrument’s serial number and software revision. Once this appears, the instrument can be started by pressing the ENTER key once – the initialization screen is then replaced by a MAIN MENU which provides access to the remaining functions.

Menus and the menu selection keys

The PUF menus are arranged hierarchally with the MAIN MENU being at the top level. Menu navigation is achieved by three keys on the right hand side of the keypad which are used to scroll UP and DOWN a menu list and SELECT a menu item. When scrolling through a menu, an arrow-shaped cursor moves up and down the left hand side of the screen to indicate the active menu choice which can then be selected by pressing the ENTER (SELECT) key.

Some menus have more options than can be shown on the screen at the same time, in which case the ‘overflowed’ choices can be brought into view by continuing to scroll DOWN past the bottom visible item. Menus generally ‘loop around’ if you scroll beyond the first or last items.

If you select Exit it usually results in taking you back one level in the menu hierarchy, but in some cases it may go directly to the ‘Flow Reading’ screen.

Some screens require you to move the cursor left and right along the display as well as up and down. This is achieved using keys 5 (scroll LEFT) and 6 (scroll RIGHT).

Figure 1.4 Keypad

1: General Description

Dual function numerical keypad

The block of keys shown in the center of the keypad in Figure 1.4 are dual function keys. They can be used to enter straight-forward numerical data, select the displayed flow units or provide quick access to frequently required control menus.

1.4.3 Power supply and battery charging

Operating power is provided by an internal battery that can be charged from the utility supply using the supplied external charger. When you first receive the unit you must put the battery on charge for a minimum of 6.5hrs before use. A fully charged battery will power the instrument for up to 20hrs depending on the output utilization and backlight usage.

The backlight can be selected to be either permanently OFF, illuminated for 10 seconds, 30 seconds or 1 minute every time a key is pressed, or permanently ON – as configured in the Setup Instrument menu. If the backlight is active continuously it will reduce the available battery operating time to 8hrs. Similarly, if the 4 to 20 mA output is used constantly at 20 mA, the battery life would reduce by 50%. It is therefore beneficial to turn off the backlight and 4 to 20 mA output facilities when they are not required.

When the instrument is operating in the ‘Flow Reading’ mode, the percentage battery charge level is displayed symbolically on the LCD screen. A warning message is triggered if the charge falls to approximately 30%, at which point there is up to four hours of battery operation remaining, depending on usage. The battery can be charged both while the instrument is in use or when switched off. The instrument’s internal data is stored in nonvolatile memory and will not be lost even if the battery discharges completely.

Key Point: The battery is not a user-changeable item. The instrument must be returned to your distributor if the battery needs replacing.

Key Point: Only use the supplied charger, or special adaptor lead. Failure to comply with this will invalidate your warranty.

1.5 Transducers

Two sets of ultrasonic transducers are provided as standard. When setting up the instrument it will indicate the appropriate transducer set to use for a particular application, depending on data entered by the user. Default pipe ranges are programmed into the instrument and most of the time there will be no need to use an alternati ve transducer set to the one suggested by the instrument. However, if circumstances dictate that a different set must be used, it is possible to manually program the instrument to accept the alternative set.

Key Point: Each transducer set has its designed working parameters and there are limitations as to how far these can be extended in the field without degrading the instrument’s sensitivity and accuracy. Contact Dwyer for advice if needed.

Transducer set 'A'

Supplied as standard for use on pipes of 0.5 to 4.5 inches (2 to 115 mm) outside diameter.

Transducer set 'B'

Supplied as standard for use on pipes 2 to 79 inches (50 to 2000 mm) outside diameter.

Transducer set 'D'

Type 'D' transducers are optional equipment that can be used by the PUF on pipes from 59 to 197 inches (1500 to 5000 mm). They are supplied complete with ratchet straps for ‘diagonal mode’ attachment.

2: Installation

Flow

Valid transducer location

10 x Diameter 20 x Diameter

45°

The PUF equipment expects a uniform flow profile as a distorted flow will produce unpredictable measurement errors. Flow profile distortions can result from upstream disturbances such as bends, tees, valves, pumps and other similar obstructions. To ensure a uniform profile, the transducers must be mounted far enough away from any cause of distortion such that it no longer has an effect.

Uniform Flow Profile Distorted Flow Profile

In many applications an even flow velocity profile over a full 360° is unattainable due, for example, to the presence of air turbulence at the top of the flow and possibly sludge in the bottom of the pipe. Experience has shown that the most consistently accurate results are achieved when the transducer holders are mounted at 45° with respect to the top of the pipe.

Possible sludge

Air

Flow

T ransducer Holder

2.1 Transducer Positioning

2: Installation

To obtain the most accurate results, the condition of both the liquid and the pipe wall must be suitable to allow the ultrasound transmission along its predetermined path. It is important also that the liquid flows uniformly within the length of pipe being monitored and that the flow profile is not distorted by any upstream or downstream obstructions. This is best achieved by ensuring there is a straight length of pipe upstream of the transducers of at least 20 times the pipe diameter and 10 times the pipe diameter on the downstream side, as shown in Figure 2.1. Flow measurements can be made on shorter lengths of straight pipe, down to 10 diameters upstream and 5 diameters downstream, but when the transducers are positioned this close to any obstruction the resulting errors can be unpredictable.

Key Point: Do not expect to obtain accurate results if the transducers are positioned close to any obstructions that distort the uniformity of the flow profile.

Figure 2.1 Locating the transducers

2: Installation

D E

A: Tensioning thumb-wheel. B: Tension bar. C: Separation bar securing

screw.

D: Separation bar. E: Ruler scale (0). F: Set Separation distance. G: Securing chain.

2.2 Transducer Attachment (Type ‘A’ & ‘B’)

Type ‘A’ & ‘B’ transducers are fitted to adjustable holders which are secured to the pipe using wrap-around chains and mechanically connected together by a steel separation bar. The separation bar also acts as a ruler to allow the distance between the transducers to be accurately set to the value determined by the PUF instrument.

When fitting the transducer holders it is easiest to assemble them onto the separation bar and adjust to the required separation distance before attaching them to the pipe.

2.2.1 Preparation

1. Before you attach the transducers you should first ensure that the proposed location satisfies the distance requirements shown in Figure 2.1, otherwise the resulting accuracy of the flow readings may be affected.

2. Prepare the pipe by degreasing it and removing any loose material or flaking paint in order to obtain the best possible surface. A smooth contact between pipe surface and the face of the transducers is an important factor in achieving a good ultrasound signal strength and therefore maximum accuracy.

2.2.2 Attaching the transducer holders

1. Slide the separation bar (D) into the front of the left hand holder, align the front edge of the holder with ‘0’ on the ruler scale (E) and secure it in place by tightening the thumbscrew (C).

2. Slide the other end of the separation bar into the front of the right hand holder, align the front edge of the holder to the required separation distance (obtained from the PUF instrument) on the ruler (F), then secure it in place by tightening the thum bscrew.

Figure 2.2 Transducer holders attachment

3. On each holder, attach one end of a securing chain to a hook on the tensioning bar (B), wrap the chain

A: Transducer cover plate.

B: Transducer locating slot/lug.

C: Transducer cover plate securing screw.

D: Transducer cable connection.

E: Ultrasonic

couplant

application.

G: Securing chain.

around the pipe (G) and then attach it to the hook on the other end of the tensioning bar while keeping the chain as tight as possible.

4. Rotate the complete transducer holder assembly so that it is approximately 45° with respect to the top of the pipe. Then tighten the chain by turning the tensioning thumb-wheel (A) on each holder until the assembly is securely attached to the pipe.

Note: If you are unable to get sufficient tension on the chain to hold the assembly in place, fully slacken the tensioning thumb-wheel and shorten the effective length of the chain wrapped around the pipe by connecting the tensioning bar to the next link in the chain, then re-tension.

2.2.3 Fitting the transducers

2: Installation

Figure 2.3 Fitting the transducers

1. Slide the transducer cover plate (A) fully towards the outside of the holder assembly to allow sufficient access to fit the transducer.

2. Clean the face of the transducer, removing all traces of dirt and grease.

3. Apply a

4. Fit the transducer into the holder – ensuring the lugs on the sides of the transducer are correctly located into the slots on the sides of the transducer holder (B).

5. Slide the transducer cover plate (A) over the top of the transducer and tighten the thumbscrew (C) finger tight to secure the transducer in place. When securing the cover plate take care to leave sufficient room around the transducer connector (D) to connect the cable.

6. Repeat the above steps for the second transducer.

7. Connect the transducers to the PUF instrument using the coaxial cables provided. The RED cable must be connected to the upstream transducer and the BLUE cable to the downstream transducer. If you observe a negative flow, swap the red and blue cables at the sensor end.

/8" bead of ultrasonic couplant along the center length of the transducer (E).

2: Installation

Figure 2.4 Com. Port configuration

2.3 Installing the USB Virtual Com. Port

If you have the CD supplied with the instrument, the USB drivers are included. Refer to the installation instructions for Portagraph III on the CD.

If you do not have the CD, follow the instructions below. The USB connection requires a virtual com port to be installed on the computer. The necessary driver can be

provided by Dwyer or downloaded from http://www.ftdichip.com/Drivers/VCP.htm.

1. Access the above url and download the driver for your particular operating system. The download takes the

form of a zip file.

2. Extract all the files from the zip file into a folder and note its location (e.g. Desktop\USBDriver).

3. Switch ON the PUF instrument and connect it to the USB port on the PC.

4. A “New device found” message will appear and ask you for the location of the software installation files

for the new device.

5. Use the Browse button to select the path to the unzipped driver files and then click OK.

6. Follow the on-screen instructions to install the driver.

7. At the end of the driver installation routine you must carry out a minor configuration change to the newly

installed virtual com port. The way in which you gain access to the com port set-up window will vary depending on your operating system. The following example applies to Windows XP.

8. Select Control Panel>System to open the SYSTEM PROPERTIES window.

9. Click the Device Manager button to open the DEVICE MANAGER window.

10. Scroll down to the Ports region and you will find the new FDTI port installed (e.g. USB Serial Port with

a high port number).

11. Right-click on the com port and select Properties.

12. From the PROPERTIES window

select the Port Settings tab then click the Advanced button. The ADVANCED SETTINGS window should open similar to that shown in Figure 2.4.

13. In the BM Options area change

the Latency Timer value from 16 msec (default) to 1 msec.

14. Select OK to implement the change,

and then close the remaining windows that were opened.

15. Your computer should now be able

to communicate with the PUF instrument via the USB port in the same way as any other standard USB device.

3: Operating Procedures

QUICK START VIEW EDIT SITE DATA

Enter data

Attach sensors

FLOW READING

Choose site / check/edit data

Attach sensors

FLOW READING

Set up a named site

At a one-off location

(Paragraph 3.2)

At a frequent location

(Paragraph 3.3)

Manage site details

(Paragraph 3.4)

Carry out any necessary calibration

(Paragraph 3.5)

How to adjust the Zero Flow Offset – Paragraph 3.5.2 How to adjust the Calibration Factor – Paragraph 3.5.3 How to adjust the Roughness Factor – Paragraph 3.5.4 How to adjust the Damping Factor – Paragraph 3.5.5

Set-up a monitoring or logging application

(Paragraph 3.6)

How to measure totalized flows – Paragraph 3.6.1 How to set up basic (manual) logging – Paragraph 3.6.3 How to set up auto-timed logging – Paragraph 3.6.4 How to set up logging ‘live’ to a PC – Paragraph 3.6.5 How to download saved data to a PC – Paragraph 3.6.6 How to print data – Paragraph 3.9

Configure the interfaces/ outputs

(Paragraph 3.7) (Paragraph 3.8)

Battery charging, Set date/time, Language, Backlight

Initial instrument setup

(Paragraph 3.1)

Connect and take basic flow readings

Rename a site

RS232 set-up – Paragraph 3.7.1 USB set-up – Paragraph 3.7.2 4-20mA ON/OFF – Page 35 4-20mA Calibration – Page 35 Pulse ON/OFF – Page 37 Pulse calibration – Page 38 Pulse frequency mode – Page 38 Pulse frequency calibration – Page 39

3: Operating Procedures

3.1 Setting-up the Instrument

3.1.1 Using the instrument for the first time

Before you use your PUF for the first time you should first charge the battery, then select the display language and set-up the internal clock, as described below.

Charging the battery

1. Connect the external battery charger to the charger socket at the bottom of the instrument then switch on the

utility supply.

2. The instrument should indicate CHARGING and

an animated battery symbol indicates that the battery is taking on charge.

3. Leave the instrument on charge for 6.5 hours

before using it for the first time.

Selecting a language

The first time you switch on the instrument you may be asked to select a user language.

1. Switch on the instrument by pressing the ON/OFF button.

2. If necessary, select the required language using the UP/DOWN scroll keys then press the ENTER key.

3. The selected language will be the default when

the instrument is next used. To change the language again select the Change Language option in the SETUP INSTRUMENT screen (see below).

4. The initialization screen will be displayed, giving

details of the instrument’s serial number and software revision details.

5. Press the ENTER key to start the instrument.

6. This is the MAIN MENU and is the starting point

for all the operations described in this chapter.

CHARGING DD-MM-YY HH:MM:SS

Serial# 0012345 V 00.00.000

Press

MAIN MENU

Quick start View/Edit Site Data Data Logger Setup RS232 /USB Setup Instrument Read flow

 to start

DD-MM-YY HH:MM:SS

Setting the Date & Time

3: Operating Procedures

1. Select Setup Instrument from the MAIN

MENU. The screen shown here should be

displayed.

2. Select Set Date & Time and press the ENTER

key.

3. A flashing cursor should appear under the first

date number. Enter the date sequence in dd- mm-yy order then press the ENTER key.

4. Repeat this action to set the time.

5. Select Exit then press the ENTER key to return

to the MAIN MENU.

Note: If you make a mistake when entering the data press the Delete key to move the cursor back to the number you wish to change, then continue. If you enter an invalid number an ‘ERR:Invalid Date or Time!’ error message is displayed on the second line of the screen. If this occurs repeat the set date/time procedure.

3.1.2 Enabling/disabling the backlight

The backlight can be selected to be either Disabled, illuminated for 10 seconds, 30 seconds or 1 minute every time a key is pressed, or ON permanently. If the backlight is not required it is recommended that you disable it to prolong the battery discharge time.

1. Select Setup Instrument from the MAIN MENU.

2. Select Backlight from the SETUP

INSTRUMENT screen then press the ENTER

key.

SETUP INSTRUMENT

Set Date & Time : dd-mm-yy hh:mm:ss Calibrate 4-20mA Pulse output Backlight : Disabled Factory settings Change Language

Exit

SETUP INSTRUMENT

Set Date & Time : dd-mm-yy hh:mm:ss Calibrate 4-20mA Pulse output Backlight : Disabled Factory settings Change Language

DD-MM-YY HH:MM:SS

Exit

3. Select the required backlight operation.

4. Press the ENTER key to return to the SETUP INSTRUMENT screen.

5. Select Exit then press the ENTER key to return to the MAIN MENU.

BACKLIGHT

DD-MM-YY HH:MM:SS

Disabled

10 seconds 30 seconds 1 minute ON Permanently

3: Operating Procedures

3.2 Using the Quick Start Menu

If you want to perform a ‘one time’ flow reading at a particular pipe location, the Quick Start menu provides the quickest way to set up the PUF system and access the FLOW READING screen.

If the point at which you intend to take the measurement is likely to require regular monitoring, it is best to set it up as a ‘Site’ within the PUF, which then stores the site parameters (See Paragraph 3.4).

Before you can use the PUF system you need to obtain the following details (this information will be required when setting up the Quick Start menu):

• The pipe outside diameter.

• The pipe wall thickness and material.

• The pipe lining thickness and material.

• The type of fluid.

• The fluid temperature.

Entering the site data

1. Select Quick Start from the MAIN MENU and press the ENTER key. You will then be presented with a series of screens in which to enter the data mentioned above.

2. Select the dimension units (millimeters or inches) used to measure the pipe, then press the ENTER key.

3. Enter the pipe outside diameter dimension, then press the ENTER key.

4. Enter the pipe wall thickness dimension, then press the ENTER key.

DIMENSION UNIT

Select the dimension units:

➥Inches

OUTSIDE DIAMETER

Dimension: Inches

Pipe outside diameter? 6.50

PIPE WALL THICKNESS

Dimension: Inches

Pipe outside diameter? 6.50 Pipe wall thickness? 0.50

DD-MM-YY HH:MM:SS

5. If the pipe has a lining, enter the lining thickness. If nothing is entered the instrument automatically assumes there is no lining.

6. Press the ENTER key to continue.

PIPE LINING THICKNESS

Dimension: Inches

Pipe outside diameter? 58.0 Pipe wall thickness? 4.0 Pipe lining thickness? 0.12

DD-MM-YY HH:MM:SS

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