PORTAFLOW 330
Portable Ultrasonic Flowmeter
User Manual
Micronics Ltd, Knaves Beech Business Centre, Davies Way, Loudwater,
High Wycombe, Bucks HP10 9QR.
Telephone: +44 (0)1628 810456 Facsimilie: +44 (0)1628 531540 E-mail: sales@micronicsltd.co.uk
www.micronicsflowmeters.com
Issue 3.3
Table of Contents
1: General Description
1
1.1 Introduction
1
1.2 Principles of Operation
2
1.3 Supplied Hardware
3
1.4 Portaflow 330 Instrument
1.4.1 Connectors
1.4.2 Keypad
1.4.3 Power supply and battery charging
4
4
5
6
1.5 Transducers
6
2: Installation
7
2.1 Transducer Positioning
7
2.2 Transducer Attachment (Type ‘A’, ‘B’ & ‘C’)
2.2.1 Preparation
2.2.2 Attaching the guide rails
2.2.3 Fitting the transducers
8
8
8
9
2.3 Installing the USB Virtual Com. Port
3: Operating Procedures
10
11
3.1 Setting-up the Instrument
3.1.1 Using the instrument for the first time
3.1.2 Enabling/disabling the backlight
12
12
13
3.2 Using the Quick Start Menu
13
3.3 Using the System at a Regularly Monitored Location
16
3.4 Managing Named Sites
3.4.1 Setting up a new site
3.4.2 Changing a site name
18
18
19
3.5 Instrument Calibration
3.5.1 Adjusting the zero cut-off
3.5.2 Adjusting the set zero flow offset
3.5.3 Adjusting the calibration factor
3.5.4 Adjusting the roughness factor
3.5.5 Adjusting the damping factor
19
19
20
20
21
22
3.6 Performing Monitoring & Logging Functions
3.6.1 How to measure totalised flows (manually)
3.6.2 How to set up the basic logging application to memory
3.6.3 How to set up automatic (timed) logging mode
3.6.4 How to log directly to a PC
3.6.5 How to download logged data to a PC
23
23
24
26
28
29
Portaflow 330 User Manual
(Issue 3.3)
i
3.7 Configuring the Portaflow 330 Interfaces
3.7.1 How to set-up an RS232 connection
3.7.2 How to set-up a USB connection
3.7.3 How to turn the 4-20mA output OFF/ON
3.7.4 4-20mA signal calibration and ranging
3.7.5 How to convert the measured current to flow rate
3.7.6 How to turn the pulse output OFF/ON
3.7.7 Generating a ‘Test’ pulse
3.7.8 Pulse output signal calibration
30
30
31
32
32
33
34
34
34
3.8 Printing
3.8.1 How to print logged data using the RS232 printer
34
34
4: Maintenance & Repair
37
5: Troubleshooting
39
5.1 Overview
39
5.2 General Troubleshooting Procedure
40
5.3 Warning & Status Messages
41
5.4 Test Block
44
5.5 Microprocessor Reset Facility
44
5.6 Diagnostics Display
45
Appendix A: Specification
47
A.1 CE Declaration of Conformity
ii
50
Portaflow 330 User Manual
(Issue 3.3)
1: General Description
1.1
Introduction
This manual describes the operation of the Micronics Portaflow 330 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 Portaflow 330 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
13mm up to 5000mm and constructed of almost any material. The instrument will also operate over a wide
range of fluid temperatures.
Easy to operate, the Portaflow 330 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.
4-20mA, 0-20mA or 0-16mA 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 metres 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
demineralised water.
Typical Portaflow 330 applications include:
•
•
•
•
•
River water.
Seawater.
Potable water.
Demineralised water.
Treated water.
Portaflow 330 User Manual
(Issue 3.3)
1
1: General Description
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 Portaflow 330 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 Portaflow 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 Portaflow 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.
Separation
Distance
Upstream
transducer
Reflex mode
U
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.
D
Fluid flow
Separation
Distance
Reflex mode (double bounce)
U
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.
D
Fluid flow
Separation
Distance
D
U
Fluid flow
Separation
Distance
Reflex mode (triple bounce)
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.
Diagonal mode
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.
U
Fluid flow
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.
D
Figure 1.1 Operating modes
2
Portaflow 330 User Manual
(Issue 3.3)
1: General Description
1.3
Supplied Hardware
The Portaflow 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.
Test Block
Transducer Cables (x2)
RS232 Cable
Chains (x2)
USB Cable
Ultrasonic
Couplant
4-20mA/
Pulse Output
Cable
Guide Rails (x2)
Power Supply
(Batt. Charger)
Transducers
(Sensors) (Ax2, Bx2)
Portaflow 330 Instrument
Ruled Separation bar
Figure 1.2 Standard Portaflow equipment
Standard equipment
• Portaflow 330 instrument with backlit graphic display.
• Power supply - with UK, US, European adaptors. 110/240VAC.
• 4-20mA/Pulse Output cable, USB cable and RS232-C cable.
• 2 lengths of chain each at 3.3 metres long.
• Test block.
• Transducer cables (x2) 2 metres long.
• Transducer set 'A' (Transducers x2).
• Transducer set 'B' (Transducers x2).
• Set of guide rails for use with ‘A’ or ‘B’ transducers.
• Ruled separation bar (2-piece).
• Ultrasonic couplant.
• Manual.
Optional equipment
• High temperature transducer sets ‘A’ and ‘B’ (-20 to +200°C).
• Extreme temperature transducer sets ‘A’ and ‘B’ (-20 to +300°C) (future option, not yet available).
• Transducer set 'C' – used for monitoring pipes of 1500mm to 5000mm diameter, over a temperature
range -20°C to +135°C. Kit is supplied in a separate case and includes the sensors together with
straps and guide rails for magnetic attachment to large pipes.
• Transducer set 'D' – used for monitoring pipes of 1500mm to 5000mm diameter, over a temperature
range -20°C to +80°C. Kit is supplied in a separate case and includes the sensors together with
ratchet straps and guide rails for attaching to the pipe.
Future options
• Bluetooth printer ASL Ap1300-BT (thermal type).
Portaflow 330 User Manual
(Issue 3.3)
3
1: General Description
1.4
Portaflow 330 Instrument
The Portaflow 330 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 totalised 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 current or variable ‘pulse’ output proportional to the detected flow rate.
These outputs, which can be used with a range of external interface devices such as those found in BMS or
site monitoring systems, can be calibrated to suit a particular flow range.
1.4.1 Connectors
4-20mA / Pulse Output
RS232 / USB Output
Transducer Cables
Reset pin-hole
LCD Display
Keypad
Battery Charger
Figure 1.3 Instrument details
Transducer connections
The transducers are connected to two colour-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 Portaflow 330 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 9pin ‘D-type’ connector.
4-20mA and Pulse output connection
The 4-20mA / ‘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 Portaflow 330 kit. The ‘tails’ on the free end of the cable must be terminated to suit
the intended application.
Red – 4-20mA positive
Black – 4-20mA negative
White – Pulse output
Green – Pulse return
Thick Black – Cable screen
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Portaflow 330 User Manual
(Issue 3.3)
1: General Description
Battery charger connection
The supplied battery charger is connected to the instrument by means of the grey 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.
Numerical keypad
with dual function keys
ON/OFF
Scroll UP
ENTER
(SELECT)
Scroll DOWN
Scroll LEFT
Scroll RIGHT
Figure 1.4 Keypad
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 initialisation 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 Portaflow 330 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).
Dual function numerical keypad
The block of keys shown in the centre 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.
Portaflow 330 User Manual
(Issue 3.3)
5
1: General Description
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 utilisation 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
4-20mA output is used constantly at 20mA, the battery life would reduce by 50%. It is therefore beneficial to
turn off the backlight and 4-20mA 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 non-volatile 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
alternative 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 programme the instrument to accept the alternative set.
Transducer set 'A'
Supplied as standard for use on pipes 13mm to 115mm outside diameter.
Transducer set 'B'
Supplied as standard for use on pipes 50mm to 2000mm outside diameter.
Transducer set 'C'
Type 'C' transducers are optional equipment that can be used by the Portaflow 330 on pipes from 1500mm to
5000mm. They are supplied complete with straps and magnetic guide rails for 'diagonal mode' attachment.
Transducer set 'D'
Type 'D' transducers are optional equipment that can be used by the Portaflow 330 on pipes from 1500mm to
5000mm. They are supplied complete with ratchet straps for ‘diagonal mode’ attachment.
6
Portaflow 330 User Manual
(Issue 3.3)
2: Installation
2.1
Transducer Positioning
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 guide rails are
mounted at 45° with respect to the top of the pipe.
The Portaflow 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
Air
45°
Distorted Flow Profile
Guide
rail
Possible
sludge
Flow
10 x Diameter
Valid transducer location
20 x Diameter
Flow
Figure 2.1 Locating the transducers
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.
Portaflow 330 User Manual
(Issue 3.3)
7
2: Installation
2.2
Transducer Attachment (Type ‘A’, ‘B’ & ‘C’)
Type ‘A’ & ‘B’ transducers are fitted to adjustable guide rails 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
Portaflow instrument.
When fitting the guide rails 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 guide rails
A
B
C
D
E
F
G
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.
Figure 2.2 Guide rail attachment
8
1.
Slide the separation bar (D) into the front of the left hand guide rail, align the front edge of the guide rail
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 guide rail, align the front edge of
the guide rail to the required separation distance (obtained from the Portaflow instrument) on the ruler
(F), then secure it in place by tightening the thumbscrew.
Portaflow 330 User Manual
(Issue 3.3)
2: Installation
3.
On each guide rail, attach one end of a securing chain to a hook on the tensioning bar (B), wrap the chain
around the pipe (G) and then attach it to the hook on the other end of the tensioning bar whilst keeping
the chain as tight as possible.
4.
Rotate the complete guide rail 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 guide block 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
C: Transducer cover plate securing screw.
B: Transducer locating slot/lug.
D: Transducer cable connection.
A: Transducer cover plate.
E: Ultrasonic
couplant
application.
Figure 2.3 Fitting the transducers
1.
Slide the transducer cover plate (A) fully towards the outside of the guide 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 3mm bead of ultrasonic couplant along the centre length of the transducer (E).
4.
Fit the transducer into the guide block – ensuring the lugs on the sides of the transducer are correctly
located into the slots on the sides of the guide block (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 Portaflow instrument using the coaxial cables provided. The RED cable
must be connected to the upstream transducer and the BLUE cable to the downstream transducer.
Portaflow 330 User Manual
(Issue 3.3)
9
2: Installation
2.3
Installing the USB Virtual Com. Port
The USB connection requires a virtual com port to be installed on the computer. The necessary driver can be
provided by Micronics 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 Portaflow 330 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 below.
Figure 2.4 Com. Port configuration
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 Portaflow 330 instrument via the USB port in
the same way as any other standard USB device.
10
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
Initial instrument setup
(Paragraph 3.1)
Battery charging, Set date/time, Language, Backlight
Connect and take basic flow readings
At a one-off location
At a frequent location
Manage site details
(Paragraph 3.2)
(Paragraph 3.3)
(Paragraph 3.4)
QUICK START
VIEW EDIT SITE DATA
Set up a named site
Enter data
Choose site / check data
Attach sensors
Attach sensors
FLOW READING
FLOW READING
Rename a site
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
Configure the interfaces
(Paragraph 3.6)
(Paragraph 3.7)
How to measure totalised flows – Paragraph 3.6.1
RS232 set-up – Paragraph 3.7.1
How to set up basic (manual) logging – Paragraph 3.6.2
USB set-up – Paragraph 3.7.2
How to set up auto-timed logging – Paragraph 3.6.3
4-20mA ON/OFF – Paragraph 3.7.3
How to set up logging ‘live’ to a PC – Paragraph 3.6.4
4-20mA Calibration – Paragraph 3.7.4
How to download saved data to a PC – Paragraph 3.6.5
Pulse ON/OFF – Paragraph 3.7.6
How to print data – Paragraph 3.8
Pulse calibration – Paragraph 3.7.8
Portaflow 330 User Manual
(Issue 3.3)
11
3: Operating Procedures
3.1
Setting-up the Instrument
3.1.1 Using the instrument for the first time
Before you use your Portaflow 330 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.
CHARGING
DD-MM-YY
HH:MM:SS
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 initialisation screen will be displayed,
giving details of the instrument’s serial
number and software revision details.
5.
Press ENTER to start the instrument.
6.
This is the MAIN MENU and is the starting
point for all the operations described in this
chapter.
Serial # V 00.00.00.00.00.00.00.
27
Press to start
DD-MM-YY
MAIN MENU
0000
HH:MM:SS
Quick start
View/Edit Site Data
Data Logger
Setup RS232 /USB
Setup Instrument
Read flow
Setting the Date & Time
1.
12
Select Setup Instrument from the MAIN
MENU. The screen shown here should be
displayed.
2.
Select Set Date & Time and click ENTER.
3.
A flashing cursor should appear under the
first date number. Enter the date sequence
in dd-mm-yy order then press ENTER.
4.
Repeat this action to set the time.
5.
Select Exit then press ENTER to return to
the MAIN MENU.
SETUP INSTRUMENT
DD-MM-YY HH:MM:SS
Dim: mm
: dd-mm-yy hh:mm:ss
Set Date & Time
Calibrate 4-20mA
Pulse output
Backlight
:
Factory settings
Change Language
Disabled
Exit
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
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 permantly. 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 ENTER.
SETUP INSTRUMENT
DD-MM-YY HH:MM:SS
Dim: mm
: dd-mm-yy hh:mm:ss
Set Date & Time
Calibrate 4-20mA
Pulse output
Backlight
:
Factory settings
Change Language
Disabled
Exit
3.2
3.
Select the required backlight operation.
4.
Press ENTER to return to the SETUP
INSTRUMENT screen.
5.
Select Exit then press ENTER to return to
the MAIN MENU.
BACKLIGHT
DD-MM-YY
HH:MM:SS
Disabled
10 seconds
30 seconds
1 minute
ON Permanently
Using the Quick Start Menu
If you want to perform a ‘one-off’ flow reading at a particular pipe location the Quick Start menu provides
the quickest way to set up the Portaflow 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 Portaflow 330, which then stores the site parameters (See Paragraph 3.4).
Before you can use the Portaflow 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 ENTER. You will then be presented with a series of
screens in which to enter the data mentioned above.
2.
Select the dimension units (millimetres or
inches) used to measure the pipe, then
press ENTER.
DIMENSION UNIT
DD-MM-YY
HH:MM:SS
Select the dimension units:
➥mm
Inches
Portaflow 330 User Manual
(Issue 3.3)
13
3: Operating Procedures
3.
Enter the pipe outside diameter dimension,
then press ENTER.
OUTSIDE DIAMETER
DD-MM-YY
Dimension:
mm
Pipe outside diameter?
4.
Enter the pipe wall thickness dimension,
then press ENTER.
PIPE WALL THICKNESS
58.0
DD-MM-YY
Dimension:
If the pipe has a lining, enter the lining
thickness.
If nothing is entered the instrument
automatically assumes there is no lining.
6.
Press ENTER to continue.
7.
Select the pipe wall material from the list
provided, then press ENTER.
If the material is not listed select Other and
enter the propagation rate of the pipe wall
material in metres/sec. Contact Micronics if
this is not known.
PIPE LINING THICKNESS
58.0
4.0
DD-MM-YY
Dimension:
HH:MM:SS
mm
Pipe outside diameter?
Pipe wall thickness?
Pipe lining thickness?
PIPE WALL MATERIAL
HH:MM:SS
mm
Pipe outside diameter?
Pipe wall thickness?
5.
HH:MM:SS
58.0
4.0
0.0
DD-MM-YY
HH:MM:SS
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)
8.
9.
If a lining thickness value was entered
earlier, this screen is displayed to request
that you enter the lining material type. If no
lining thickness was entered this screen will
be bypassed.
Select the lining material from the list
provided then press ENTER.
If the material is not listed select Other and
enter the propagation rate of the lining
material in metres/sec. Contact Micronics if
this is not known.
14
PIPE LINING MATERIAL
DD-MM-YY
HH:MM:SS
Select pipe lining material
Steel
Rubber
Glass
Epoxy
Concrete
Other (m/s)
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
10. Select the fluid type from the list provided
and press ENTER.
If the liquid is not listed select Other and
enter a propagation rate in metres/second.
FLUID TYPE
DD-MM-YY
HH:MM:SS
DD-MM-YY
HH:MM:SS
Select fluid type
Water
Glycol/water 50/50
Glycol/water 30/70
Lubricating oil
Diesel
Freon
Other (m/s)
11. If you need to alter the fluid temperature
from that shown select either °C or °F with
the cursor and press the ENTER key.
12. Enter the new temperature value and press
the ENTER key.
13. The new temperature should now be
indicated in both °C and °F.
FLUID TEMPERATURE
Enter Fluid Temperature
°C: 5.00
°F: 41.00
Continue..
14. Select Continue.. and press ENTER.
15. The SENSOR SEPARATION screen now
displays a summary of the entered
parameters and informs you of the type of
sensor to be used, the mode of operation
and the distance to set up between the
sensors.
In this example it recommends type A-ST (A
standard) sensors operating in the ‘Reflex’
mode spaced at 32.2mm apart.
Take a note of these details.
DD-MM-YY HH:MM:SS
SENSOR SEPARATION
Site
: Quickstart
Pipe
: 58.00 mm
Wall
: 4.00
Sensors
: A-ST
Reflex
Temperature : 10.00°C 50.00°F
Set sensor separation to
32.2 mm
Press to continue,UV to select sens.
Note: The SENSOR SELECTION menu can be entered by use of the Up/Down scroll keys. This allows
the type and mode of the sensors being used to be selected. This menu will be entered automatically if
the entered pipe OD and/or temperature are not valid for the currently selected sensors.
Note: Do not press ENTER until the transducers are fitted and connected to the instrument.
Attaching and connecting the transducers
16. 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.
17. 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.
Portaflow 330 User Manual
(Issue 3.3)
15
3: Operating Procedures
Taking a flow reading
18. Once the transducers have been fitted and
connected press the Enter key.
19. This will take you from the SENSOR
SEPARATION screen to the FLOW READING
screen via a signal-checking screen (shown
here).
20. 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.
Please wait..
Checking signals
****************************************
*
*
****************************************
FLOW READING
Signal
DD-MM-YY HH:MM:SS
Dim: mm
0.000
+Total: 0.00
–Total: 0.00
l/min
litres
litres
Flow monitoring
The FLOW READING screen is the one most used during normal monitoring operation. It shows the
instantaneous fluid flow together with totalised values (when enabled). In this mode you can select the flow
rate measurement units by pressing keys 7 (litres), 8 (Gallons, Barrels) or 9 (m³), or change the display to
show velocity by pressing key 4.
3.3
Using the System at a Regularly Monitored Location
Setting up the Portaflow system using the Quick Start method described in Paragraph 3.2 is easy and the
recommended method to use in a ‘one-off’ situation. But if you have a site location that you want to monitor
on a frequent basis it is better to set up a named ‘Site’ for that location so that you can recall it when needed
and so avoid the need to re-enter the site details every time you want to install the equipment there.
Note: See Paragraph 3.4 for details of how to set-up and manage site details.
Use this procedure to install the equipment at a named site.
16
1.
Select View Edit Site Data from the
MAIN MENU.
2.
Select Choose from list of sites.
3.
Select one of the sites listed and press
ENTER.
4.
The Site name will show the selected site
and the site parameters will be listed on the
screen.
5.
Scroll down through the menu list and enter/
change the data that might have changed
since the last time the site was accessed.
6.
When you are satisfied that the parameters
are correct select Save current site &
read flow.
DD-MM-YY HH:MM:SS
Dim: mm
Choose from list of sites
Site name
: MySite
Dimension units
: mm
Pipe outside diameter: 58.00
Pipe wall thickness : 4.00
Pipe lining thickness: 0.00
VIEW EDIT SITE DATA
Pipe wall material
: Mild Steel
Lining material
: --------Sensor set
: A-ST (see note)
Sensor mode
: Reflex
Fluid type
: Water
Save current site & read flow
Delete this Site
Download & save current site
Exit
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
Note: If you select a different Sensor set (e.g. A-ST) when entering new site data you could receive an
“invalid” error message if the previous Sensor set was operating at a temperature above 135ºC. If this occurs,
ignore the warning as it will disappear when you enter a temperature in the correct range for new sensors.
7.
If you need to alter the fluid temperature
from that shown select either °C or °F with
the cursor and press the ENTER key.
8.
Enter the new temperature value and press
the ENTER key.
9.
The new temperature should now be
indicated in both °C and °F.
FLUID TEMPERATURE
DD-MM-YY
HH:MM:SS
Enter Fluid Temperature
°C: 5.00
°F: 41.00
Continue..
10. Select Continue.. and press ENTER.
11. The SENSOR SEPARATION screen now
displays a summary of the entered
parameters and informs you of the type of
sensor to be used, the mode of operation
and the distance to set up between the
sensors. In this example it recommends
type A-ST (A standard) sensors operating in
the ‘Reflex’ mode spaced 32.2mm apart.
Take a note of these details.
DD-MM-YY HH:MM:SS
SENSOR SEPARATION
Site
: MySite
Pipe
: 58.00 mm
Wall
: 4.00
Sensors
: A-ST
Reflex
Temperature : 10.00°C 50.00°F
Set sensor separation to
32.2 mm
Press to continue,UV to select sens.
Note: If you press ENTER before the transducers are fitted and connected to the instrument, the
instrument will detect a low signal strength and may indicate an ERROR condition.
Attaching and connecting the transducers
12. 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.
13. Connect the red and blue coaxial cables between the sensors and the instrument, ensuring that the red
connector on the instrument is connected to the ‘upstream’ sensor.
Taking a flow reading
14. Once the transducers have been fitted and
connected press the ENTER key.
15. This will take you from the SENSOR
SEPARATION screen to the FLOW READING
screen via a signal-checking screen (shown
here).
16. 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.
Portaflow 330 User Manual
(Issue 3.3)
Please wait..
Checking signals
****************************************
*
*
****************************************
FLOW READING
Signal
DD-MM-YY HH:MM:SS
Dim: mm
0.000
+Total: 0.00
–Total: 0.00
l/min
litres
litres
17
3: Operating Procedures
Flow monitoring
The FLOW READING screen is the one most used during normal monitoring operation. It shows the
instantaneous fluid flow together with totalised values (when enabled). In this mode you can select the flow
rate measurement units by pressing keys 7 (litres), 8 (Gallons, Barrels) or 9 (m³), or change the display to
show velocity by pressing key 4.
3.4
Managing Named Sites
If you want to monitor a particular site location frequently you can set up a named ‘Site’ to store the
installation details, such as pipe dimensions and material, required to set-up the Portaflow 330 system.
These can then be recalled later when revisiting that particular location.
The instrument can store up to 20 sites, the first site is reserved for QUICK START and cannot be renamed;
subsequent sites are initially named EmptySite1 through to EmptySite19.
3.4.1 Setting up a new site
Key Point: Once you have set up a named site you are advised to log some data to
the site in order to avoid the possibilty of the site name being overwritten when the
QuickStart data is saved. See Paragraph 3.6.2 for details.
18
VIEW EDIT SITE DATA
DD-MM-YY HH:MM:SS
Dim: mm
Choose from list of sites
Site name
: EmptySite1
Dimension units
: mm
Pipe outside diameter: 58.00
Pipe wall thickness : 4.00
Pipe lining thickness: 0.00
1.
Select View Edit Site Data from the
MAIN MENU.
2.
Select Choose from list of sites.
3.
Select one of the EmptySites from the
presented list (e.g. EmptySite 1 as
shown).
4.
Select Site name and press ENTER.
5.
This opens the ALTER NAME screen.
ALTER NAME
6.
Select Alter the Site Name and you
will be presented with a screen which allows
you to enter a new name in much the same
way as when composing a mobile text
message.
Site name
7.
On completion press ENTER then select
Exit. This will take you back to the VIEW
EDIT SITE DATA screen.
8.
Scroll down through the menu list and enter/
change the pipe parameters and other data
pertaining to the site.
Note that this menu allows you to choose a
Sensor Set, unlike the QUICK START
menu which recommended the sensor set
to use. If you enter an inappropriate sensor
set in this menu you will be presented with
an error message later when you go to the
SENSOR SEPARATION screen.
DD-MM-YY
HH:MM:SS
: EmptySite1
Do you wish to:–
Alter the Site Name
Exit
DD-MM-YY HH:MM:SS
Dim: mm
Choose from list of sites
Site name
: MyNewSite
Dimension units
: mm
Pipe outside diameter: 58.00
Pipe wall thickness : 4.00
Pipe lining thickness: 0.00
VIEW EDIT SITE DATA
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
9.
When all the data is correct you can either:
a)
b)
c)
d)
Select Save current site &
read flow to continue fitting the
transducers and opening the FLOW
READING screen.
Select Delete this site to delete
the site name and values and restore
it to the original EmptySite name.
Select Download & save current
site to save the site details and
download them to a PC via RS232/
USB provided the RS232/USB link is
connected and correctly set-up.
Select Exit to return to the MAIN
MENU.
Pipe wall material
: Mild Steel
Lining material
: --------Sensor set
: A-ST
Sensor mode
: Reflex
Fluid type
: Water
Save current site & read flow
Delete this Site
Download & save current site
Exit
3.4.2 Changing a site name
To change a site name use the same method described above for generating a new site: but in this case
access a current site name to change rather than an EmptySite. If you change a site name while the site is
logging the logging will stop.
3.5
Instrument Calibration
The Portaflow is fully calibrated before it leaves the factory; however the following adjustments are provided
to allow you to further ‘fine tune’ your instrument to suit local conditions and application where necessary.
Apart from the zero flow offset adjustment, these are normally carried out only where the instrument is to be
used in a permanent or semi-permanent location.
3.5.1 Adjusting the zero cut-off
This adjustment allows you to set a minimum flow rate (m/s) below which the instrument will indicate ‘0’. The
default setting is 0.01 m/s but you may adjust this value if required.
1.
With the instrument operating in FLOW READING mode, press the Options key to access the FLOW
READING OPTIONS menu shown.
2.
Select Zero Cutoff (m/s) and press
ENTER.
3.
Enter the value for the Zero Cutoff (e.g.
0.06 m/s) then press ENTER.
4.
Scroll down to select Exit and press ENTER
to return to the FLOW READING screen.
Portaflow 330 User Manual
(Issue 3.3)
FLOW READING OPTION
Data review
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
DD-MM-YY
:
:
:
:
HH:MM:SS
0.00
0.00
10
Run
19
3: Operating Procedures
3.5.2 Adjusting the set zero flow offset
The Portaflow instrument operates by comparing the time taken to send an ultrasonic signal between two
transducers in either direction. A Set zero flow offset adjustment is provided to compensate for any
inherent differences between the two sensors, noise pick-up, internal pipe conditions etc. It can be used to
‘zero’ the flow indication under no-flow conditions.
If you have adjusted the Zero Cutoff point to anywhere above ‘0’ you must reset it
to ‘0’ before you can observe and adjust the Set zero flow offset, as its value is
very small. Once the Set zero flow offset has been calibrated you can then reapply
the Zero Cutoff if required.
1.
Stop the liquid flow.
2.
With the instrument in FLOW READING mode press the Velocity function key and observe the reading
(m/s). Any reading other than 0.000 indicates an offset error and in practice this will typically be in the
range ±0.005m/s (possibly higher on smaller diameter pipes). If a greater figure is shown it is worth
calibrating the offset to obtain a more accurate result. Continue as follows:
3.
Press the Options key to access the FLOW
READING OPTION screen shown.
4.
Select Set zero flow (m/s) and press
ENTER.
5.
Press ENTER on the subsequent screen to
accept the change, which will return you to
the screen shown.
6.
Scroll down to select Exit and press ENTER
to return to the FLOW READING screen.
FLOW READING OPTION
Data review
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
DD-MM-YY
:
:
:
:
HH:MM:SS
0.00
0.00
10
Run
Key Point: In order to cancel any applied offset you must either read flow via Quick
Start or switch the Portaflow instrument OFF & ON. Any value that you trim-out
using the offset adjustment will be added/subtracted from the flow reading across
the whole range.
3.5.3 Adjusting the calibration factor
Key Point: USE THIS FACILITY WITH CARE & ONLY WHERE NECESSARY
The Portaflow instrument is fully calibrated before leaving the factory and under normal circumstances does not require further calibration when used on site.
This facility can be used to correct the flow indication where unavoidable errors occur
due to the lack of a straight pipe or where the sensors are forced to be fitted close to
the pipe-end, valve, junction etc.
Any adjustment must be made using a reference flowmeter fitted in the system.
With the system running:
20
1.
Stop (Stall) the Portaflow’s totaliser facility and zero it (Paragraph 3.6.1).
2.
Run the Portaflow’s totaliser to measure the total flow over a 30-60 minute period, and note the total flow
indicated by the reference flow meter over the same period.
3.
Calculate the % error between the Portaflow and reference meters. If the error is greater than ±1%
calibrate the Portaflow as detailed below.
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
4.
Press the Options key to access the FLOW
READING OPTION screen shown.
5.
Scroll down and select Calibration
factor.
6.
Change the calibration factor according to
the error calculated in step 3. For example, if
the Portaflow was reading 1% high then
increase the Calibration factor value
by 0.010. Conversely, if the reading is 1%
low then decrease the calibration factor to
0.990.
7.
Press Enter to apply the change.
8.
Select Roughness factor or Exit as
required.
FLOW READING OPTION
Data review
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
Reset –Total
Calibration factor
Roughness factor
Diagnostics
Exit
DD-MM-YY
:
:
:
:
HH:MM:SS
0.00
0.00
10
Run
:
:
1.000
0.01
3.5.4 Adjusting the roughness factor
The roughness factor compensates for the condition of the internal pipe wall, as a rough surface will cause
turbulence and affects the flow profile of the liquid. In most situations it is not possible to inspect the pipe
internally and the true condition is not known. In these circumstances experience has shown that the
following values can be used:
Pipe Material
Roughness Factor
Non ferrous metal
Glass
Plastics
Light metal
0.01
Drawn steel pipes:
• Fine planed, polished surface
• Plane surface
• Rough planed surface
0.01
Welded steel pipes, new:
• Long usage, cleaned
• Lightly and evenly rusted
• Heavily encrusted
0.1
Cast iron pipes:
1.0
• Bitumen lining
• New, without lining
• Rusted / Encrusted
Portaflow 330 User Manual
(Issue 3.3)
21
3: Operating Procedures
With the system running in FLOW READING mode:
1.
Press the Options key to access the FLOW
READING OPTION screen shown.
2.
Scroll down and select Roughness
factor.
3.
Change the roughness factor according to
the pipe material and condition as described
above.
4.
Press Enter to apply the change.
FLOW READING OPTION
Data review
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
Reset –Total
Calibration factor
Roughness factor
Diagnostics
Exit
DD-MM-YY
:
:
:
:
:
:
HH:MM:SS
0.00
0.00
10
Run
1.000
0.01
3.5.5 Adjusting the damping factor
By averaging-out the flow rate over several seconds, the Damping factor can be used to smooth out
rapid changes in flow rate to prevent wild fluctuations in the displayed flow value. It has a range of 10, 15, 20,
30, 50, 100 seconds, with a default setting of 10.
With the system running in FLOW READNG mode:
1.
Press the Options key to access the FLOW
READING OPTION screen shown.
2.
Scroll down and select Damping (secs).
3.
This will open the DAMPING OPTIONS
screen.
FLOW READING OPTION
Data review
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
Reset –Total
Calibration factor
Roughness factor
Diagnostics
Exit
4.
5.
Select the value of the Damping factor
as required to remove any unwanted display
fluctuations. Increasing the value applies a
greater smoothing affect.
Press Enter to apply the selection and
return to the FLOW READING OPTIONS
screen.
DAMPING OPTIONS
DD-MM-YY
:
:
:
:
:
:
DD-MM-YY
HH:MM:SS
0.00
0.00
10
Run
1.000
0.01
HH:MM:SS
10 seconds
15 seconds
20 seconds
30 seconds
50 seconds
100 seconds
Key Point: If the damping factor is set too high the value displayed may appear
stable but it may exhibit large step changes when the value is updated.
22
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
3.6
Performing Monitoring & Logging Functions
3.6.1 How to measure totalised flows (manually)
The basic measurement indicated on the FLOW READING screen is the instantaneous flow rate, which in
some applications may vary over a period of time. Average flow rates are therefore often required in order to
get a better understanding of an application’s true performance. This is simply achieved by noting the total
flow over a specific period (for example 30-60 minutes) and then calculating the average flow rate over that
period of time.
FLOW READING OPTION
DD-MM-YY
HH:MM:SS
1.
Press the Options key to access the FLOW
READING OPTION screen shown.
2.
If the Totaliser is indicating Run, select it
and change it to Stall. Press ENTER.
3.
Select Reset +Total and press ENTER.
4.
Press ENTER on the subsequent screen to
accept the reset.
5.
Press ENTER again to return to the FLOW
READING OPTIONS menu.
6.
Select Reset –Total and press ENTER.
FLOW READING OPTION
DD-MM-YY
7.
Press ENTER on the subsequent screen to
accept the reset.
8.
Press ENTER again to return to the FLOW
READING OPTIONS menu.
:
:
:
:
9.
Note and record the current time.
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
Reset –Total
FLOW READING
DD-MM-YY HH:MM:SS
Dim: mm
Data review
Zero Cutoff (m/s)
Set zero flow (m/s)
Damping (secs)
Totaliser
Reset +Total
:
:
:
:
0.00
0.00
10
Stall
HH:MM:SS
0.00
0.00
10
Run
10. Select Totaliser and change it to Run.
Press ENTER.
Note: the totalisers begin to count up as
soon as Totaliser is put to Run.
11. Scroll down and select Exit to return to the
FLOW READING screen which will now
indicate the instantaneous flow together
with the totalised flow.
Note that in some installation the measured
flow can be in either direction. Where this is
the case the upstream flow is shown
separately in the –Total field.
Signal
12.34
+Total: 300.0
–Total: 0.00
l/min
litres
litres
Calculating the average flow
To calculate the average flow wait for the allotted monitoring period to expire then divide the indicated total
flow by the time taken. This will give you the average flow in m/s, galls/hour or whatever units you select.
Note that in a bi-directional flow situation you must calculate the difference between the indicated positive
and negative flow totals before carrying out the average flow rate calculation.
How to stop the totaliser temporarily
If you want to stop the totaliser temporarily for operational reasons, set the Totaliser option to Stall in
the FLOW READING OPTIONS screen as described above. This will stop the totaliser operation without
affecting its current values.
Portaflow 330 User Manual
(Issue 3.3)
23
3: Operating Procedures
3.6.2 How to set up the basic logging application to memory
This procedure shows you how to set up a basic logging session under manual start/stop control. The logged
data is saved to the instrument’s memory and can be downloaded to a PC at a later time.
Starting point
This procedure assumes that the Portaflow instrument has been correctly installed and is operating in the
FLOW READING mode.
Setting up and starting the logging
1.
With the Portaflow operating in FLOW READING mode, check that the indicated flow units are the same
as those you want to appear on the logger output (e.g. l/min).
2.
Press the Logger function key to access
the REAL TIME LOGGER screen.
3.
Select Log data to and choose Memory
to store the log to the instrument’s internal
memory.
4.
Select Logging interval and enter the
required period (e.g. 10 seconds).
5.
Select Clear log if you want to discard
any existing logging data.
6.
Select START NOW.
7.
This screen appears only if a log already
exists for the QuickStart site. It allows
you to either delete or save the existing
log, or cancel the START NOW request.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
START NOW
Set Auto start
Clear log
Exit
ERR:Log not empty
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
Memory
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
DD-MM-YY HH:MM:SS
Dim: mm
Press to confirm deletion
Press U to save log and continue
Press V to cancel
If you choose to save the existing log it will be saved to the highest number site that does not currently have
an attached log (e.g. EmptySite19, EmptySite18.... etc). The name of the site to which the log is saved
will be changed to CopyQS_xx (where xx is a numerical value which is incremented each time a log is
saved).
For example: if EmptySite19 is available when you elect to save the QuickStart log, the log is saved to
EmptySite19 and the sitename is changed to CopyQS_1.
Key Point: When setting up a named site it is advisable to run a brief logging
session on the new site to establish a data log file, as this will prevent the site name
being overwritten when saving the QuickStart log, as described above.
24
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
8.
The VIEW LOG AS TEXT screen displays
the log events in date-stamped chronological
order.
Note: Press key 5 to go to the top line of
logged data or key 6 to go to the bottom
line.
9.
Press the ENTER key to return to the REAL
TIME LOGGER screen. Then select Exit to
return to the FLOW READING screen.
Logging will continue to take place in the
background.
DD-MM-YY HH:MM:SS
VIEW LOG AS TEXT
Logging to memory
Dim: mm
Log:Quickstart
Date
Time
Flow
DD-MM-YY
hh:mm:ss
xxx.xx l/m
DD-MM-YY
hh:mm:ss
xxx.xx l/m
DD-MM-YY
hh:mm:ss
xxx.xx l/m
DD-MM-YY
hh:mm:ss
xxx.xx l/m
-------DD-MM-YY
hh:mm:ss
xxx.xx l/m
Key Point: There can be only one set of logged data per site. If a new data log is
started on a site it will clear the existing data.
Monitoring the logged events as a graphic
10. If you want to view the logging progress
graphically rather than as text, press the
Logger function key to get to the REAL
TIME LOGGER screen.
11. Select Graph Y axis max and enter a
value equal to the expected maximum flow.
12. Select View log as graph. This will
open the VIEW LOG AS GRAPH screen
shown below.
13. You can select the data at any point in time
by scrolling along the time axis of the graph
using the LEFT/RIGHT scroll keys (5 & 6).
The data values for the selected point are
then shown to the left of the graph. Keep the
scroll key pressed for the cursor to move
automatically.
14. If you want to change the value of the Y axis
to improve the resolution of the graph press
the UP/DOWN scroll keys. The maximum
values will then increase/decrease as
appropriate.
15. To exit the VIEW LOG AS GRAPH screen
and return to the REAL TIME LOGGER
screen press ENTER.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
START NOW
Set Auto start
Clear log
Exit
VIEW LOG AS GRAPH
50.00
Log: Quickstart
Point: XXX/XXX
Value: xx.xx
dd-mm-yy hh:mm:ss
–50.00
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
Memory
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
DD-MM-YY HH:MM:SS
Dim: mm
Monitoring the logged events at a later time
16. If you wish to monitor the logging progress at any time while you are operating in FLOW READING mode,
press the Logger function key as described above to switch to the REAL TIME LOGGER screen. You
can then select View log as text or View log as graph, as required, without interfering with the
logging operation.
Portaflow 330 User Manual
(Issue 3.3)
25
3: Operating Procedures
Stop logging
17. From the FLOW READING screen, press the
Logger function key to access the REAL
TIME LOGGER screen.
18. Select STOP NOW to cease logging.
Note that the START NOW and STOP NOW
options toggle depending on which was last
selected.
19. Select Exit to return to the FLOW
READING screen.
Note that the logged data will remain stored in
the instrument’s memory and can be accessed
at any time as described above.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
STOP NOW
Set Auto start
Clear log
Exit
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
Memory
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
3.6.3 How to set up automatic (timed) logging mode
This procedure shows you how to set up an auto logging session under timed start/stop control. The logged
data is saved to the instrument’s memory and can be downloaded to a PC at a later time.
Starting point
This procedure assumes that the Portaflow has been correctly installed and is operating in the FLOW
READING mode. Also that the instrument’s date and time are correctly set.
Setting up, starting and cancelling auto logging
Key Point: When entering the Start and Stop times in this procedure, you must
enter ‘00’ in the seconds field rather than leave it blank, otherwise an error message
is displayed.
Key Point: If you enter a Start time later than the Stop time you will see an error
message until the stop time has been set to be later. This does not however affect
the operation of the equipment once the correct times have been set.
1.
26
With the Portaflow operating in FLOW READING mode, check that the indicated flow units are the same
as those you want to appear on the logger output (e.g. l/min).
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
2.
Press the Logger function key to access
the REAL TIME LOGGER screen.
3.
Select Log data to and choose Memory.
This will store the log to the internal memory.
4.
Select Logging interval and enter the
required period.
5.
Select Start date & time and enter the
date and time you wish logging to
commence. Note this must be in the future.
Note: If the log is not empty then a warning
screen will be displayed, and when a key is
pressed the menu will be displayed with
the cursor at the Clear Log item. The log
must be cleared before new times can be
entered.
6.
7.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
START NOW
Set Auto start
Clear log
Exit
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
Memory
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
Select Stop date & time and enter the
date and time you wish logging to cease.
Note this must be later than the start time.
If the instrument is to be left unattended for a long logging period which could possibly fill the memory,
select the Memory Rollover option to either Stop or Overwrite. This determines what happens to the
stored data if the memory becomes full. Similarly, select Clear log if you want to ensure that maximum
memory is available.
Note: if you select to clear all logs you will lose all the currently held log data.
8.
Select Set auto start. This enables the
auto logging application.
Note: If Set Auto start is enabled with
valid start and stop times then this entry
will change to Cancel Auto start.
9.
To cancel the automatic logging session
before it commences, click the Cancel
Auto Start.
10. Select Exit to return to the FLOW READING
screen.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
START NOW
Cancel Auto Start
Clear log
Exit
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
Memory
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
Monitoring the logged events
11. If you wish to view the logging progress at any time while you are operating in FLOW READING mode,
press the Logger function key as described above to access the REAL TIME LOGGER screen. You can
then select View log as text or View log as graph, as required, without interfering with the
logging operation. This is described in detail in procedure Paragraph 3.6.2.
Portaflow 330 User Manual
(Issue 3.3)
27
3: Operating Procedures
Manually stopping the auto logging session
12. The logging session will stop automatically
at the programmed Stop date & time.
13. If you wish to manually stop logging earlier
than programmed, press the Logger
function key to access the REAL TIME
LOGGER screen then select STOP NOW to
cease logging.
14. Select Exit to return to the FLOW
READING screen.
Note: The logged data will remain stored
in the instrument’s memory and can be
viewed at any time as described above.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
STOP NOW
Set Auto start
Clear log
Exit
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
Memory
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
3.6.4 How to log directly to a PC
Selection made during logging set-up
1.
2.
In the previous procedures the logging data
was routed to the Portaflow 330’s internal
memory where it was stored for later
download to a PC/printer. However, you
could have sent it directly to the PC or
printer for ‘live’ data display by selecting
RS232 in the Log data to option in the
REAL TIME LOGGER screen.
REAL TIME LOGGER
4-20mA O/P is ON.
Unit
Log name
Log data to
Logging interval
Start date & time
Stop date & time
In order for this to work correctly the
Portaflow 330 must be connected to the PC
and the RS232/USB link already
established.
Remaining time
Memory Rollover
Graph Y axis max.
View log as text
View log as graph
STOP NOW
Set Auto start
Clear log
Exit
:
:
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
l/min
Quickstart
RS232
10 seconds
dd-mm-yy hh:mm:ss
dd-mm-yy hh:mm:ss
MM DD HH MM SS
: mm dd hh mm ss
: Overwrite
: 50
Swapping data destinations during a logging session
When a logging session is in progress the Portaflow 330 is normally in the FLOW READING mode. In this
mode you can switch the logging data destination by pressing the Logger function key and then selecting
either Memory or RS232 in the Log data to field – see the screen above. You can also select Both, to
route the data to both destinations simultaneously.
Key Point: This will only work if the Portaflow 330 is connected to the PC and the
RS232 link has already been established. If the RS232 protocol has not been
configured you can access the RS232 set-up screen by pressing the Comms button.
28
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
3.6.5 How to download logged data to a PC
This procedure describes how to download stored data to a PC. It assumes that the Portaflow 330 is already
connected to the PC’s serial port and that RS232/USB communication has been established, as described in
Paragraph 3.7.1.
1.
Access the MAIN MENU.
Note: If this is done from the FLOW READING screen any logging currently taking place will be terminated.
2.
Select View Logged Data from the MAIN
MENU.
3.
Select Choose from list of sites
and select the name of the site to download.
4.
If you want to view the log prior to
downloading it you can do so using the
View log as text or View log as
graph options.
5.
When you are ready to begin downloading
the log select Download log.
6.
From the DOWNLOAD LOG screen select USB
or RS232 then select Send from the
subsequent confirmation screen.
7.
The selected logged data is now
downloaded to the PC.
8.
Upon completion select Exit to return to the
VIEW LOGGED DATA screen.
9.
On the VIEW LOGGED DATA screen you can
now Clear the log if required or Exit
directly back to the MAIN MENU.
VIEW LOGGED DATA
DD-MM-YY HH:MM:SS
Dim: mm
Choose from list of sites
View log as text
View log as graph
Graph Y axis max. :
1.00
Download log
Clear log
Exit
DOWNLOAD LOG
DD-MM-YY HH:MM:SS
Dim: mm
Select Serial port or printer & press USB
RS232
Exit
Key Point: When using the USB to download data, make sure that the USB driver
has been installed and the correct COM port has been set (see Paragraph 2.3).
Portaflow 330 User Manual
(Issue 3.3)
29
3: Operating Procedures
3.7
Configuring the Portaflow 330 Interfaces
3.7.1 How to set-up an RS232 connection
If you want to download a stored data log, or output live data logging, to a PC you must first establish RS232
communication between the PC and the data logger. (Download is also possible using USB.)
This procedure provides step-by-step instructions for setting up a HyperTerminal connection, which is a
standard Windows® XP application (not available on Vista). The default location of HyperTerminal is:
Start>All Programs>Accessories>Communications>HyperTerminal
Setting up a HyperTerminal connection
1.
Open HyperTerminal. The Connection
Description dialogue box will appear.
2.
Enter a name for the connection
(Portaflow Download in the example)
then click OK.
3.
Select a COM port, then click OK.
Note: The available COM ports will vary
between individual PC installations.
4.
Enter values for the Port Settings as shown.
5.
Click on OK.
6.
The ‘Portaflow Download’ Terminal settings
will now be saved.
Note: When you next start a HyperTerminal
session you can select the ‘Portaflow
Download’ terminal from the File>Open menu
rather than having to re-enter the parameters.
30
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
7.
The main HyperTerminal
window will now become
active (note the connection
name now shown in the title
bar).
8.
Leave this window open
while you configure the
Portaflow 330’s RS232
parameters.
Configuring the Portaflow 330 instrument
9.
Select Setup RS232 / USB from the MAIN
MENU. This will access the SETUP RS232/
USB screen shown here.
10. Set the RS232 parameters as shown
opposite.
Note: The selected Baud Rate must also be
available on the receiving terminal.
SETUP RS232 / USB
Handshaking
Baud Rate
Data Bits
Stop Bits
Parity
New line
Printer test
Exit
DD-MM-YY HH:MM:SS
Dim: mm
:
None
:
38400
:
8
:
2
:
None
:
CR+LF
:
Testing the RS232 connection
11. Ensure the Portaflow 330 is
connected to the PC’s
serial port using the cable
provided.
12. In the SETUP RS232/USB
screen select Printer
test.
13. The Portaflow 330’s serial
number should now appear
in the HyperTerminal
window.
This proves that the link is
working.
3.7.2 How to set-up a USB connection
In order to use a USB connection you must first install the special USB driver as detailed in Paragraph 2.3.
This will set up a virtual port through which the Portaflow 330 can communicate.
When you make the connection with the computer use the same technique as described above for setting up
an RS232 communications session through HyperTerminal. But in this case when you are asked to select a
Com Port choose the virtual port set up by the driver installation.
Once this is done, provided the Portaflow and computer communications protocols are set to the same
values (Handshaking, Start bits, Stop bits, Parity etc) the two devices should be able to communicate in the
same manner as described for the RS232.
Portaflow 330 User Manual
(Issue 3.3)
31
3: Operating Procedures
3.7.3 How to turn the 4-20mA output OFF/ON
1.
With the instrument operating in the FLOW
READING mode, press the 4-20mA function
key. This will access the 4-20mA OUTPUT
screen.
2.
The ON/OFF status of the 4-20mA output is
shown on line 2 of the display.
3.
To change the ON/OFF status select
Output Range and press ENTER.
4.
5.
Select Off, to turn OFF the 4-20mA Output
or select one of the output ranges to turn it
ON.
Press ENTER to return to the 4-20mA
OUTPUT screen.
4-20 mA OUTPUT
4-20 mA O/P is ON
mA Output Reading
Output Range
Units
Flow at max. output
Flow at min. output
Output mA for error
DD-MM-YY HH:MM:SS
Dim: mm
:
0.00
:
4-20
:
l/min
:
0.00
:
0.00
:
22.00
Exit
4-20 mA OUTPUT
DD-MM-YY HH:MM:SS
Dim: mm
Off
4-20mA
0-20mA
0-16mA
3.7.4 4-20mA signal calibration and ranging
Key Point: The 4-20mA output has been calibrated in the factory and should not
require further adjustment. In the rare event that re-calibration is necessary, this
procedure should be carried out only by a trained engineer.
This procedure describes how to calibrate the 4-20mA output and ‘scale’ it to operate over a defined flow-rate
range.
Signal calibration
1.
2.
Select Setup Instrument from the MAIN
MENU, to access the SETUP INSTRUMENT
screen.
Select Calibrate 4-20mA.
SETUP INSTRUMENT
DD-MM-YY HH:MM:SS
Dim: mm
: dd-mm-yy hh:mm:ss
Set Date & Time
Calibrate 4-20mA
Pulse output
Backlight
:
Factory settings
Change Language
Disabled
Exit
3.
4.
32
Connect a calibrated ammeter to the 420mA output and adjust the UP/DOWN Scroll
keys (Coarse) and LEFT/RIGHT Scroll keys
5 & 6 (fine) until the output is exactly 4.0mA.
The DAC should indicate approximately
8000.
Press ENTER when done.
CALIBRATE 4mA
DD-MM-YY HH:MM:SS
Dim: mm
Adjust the output current to 4mA
Use UV to set, 5/6 to trim
DAC Value:
Press
8000
when done
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
5.
With the meter still connected to the 4-20mA
output adjust the Scroll keys to obtain an
output of exactly 20mA.
The DAC should indicate approximately
40000.
6.
Press ENTER when done.
DD-MM-YY HH:MM:SS
Dim: mm
Adjust the output current to 20mA
Use UV to set, 5/6 to trim
CALIBRATE 20mA
DAC Value:
Press
40000
when done
4-20mA Signal scaling
Note: The 4-20mA can be set to represent a particular flow range. It is also possible to enter a negative figure
for the minimum output and this would enable a reverse flow to be monitored.
7.
With the instrument operating in the FLOW
READING mode, press the 4-20mA function
key. This will access the 4-20mA OUTPUT
screen.
8.
Select Flow at max. output and enter a
value of the flow rate that you want to
associate with a 20mA output.
9.
Select Flow at min. output and enter a
value of the flow rate that you want to
associate with a 4mA output.
This could be ‘0’.
DD-MM-YY HH:MM:SS
Dim: mm
:
0.00
:
4-20
:
l/min
:
0.00
:
0.00
:
22.00
4-20 mA OUTPUT
4-20 mA O/P is ON
mA Output Reading
Output Range
Units
Flow at max. output
Flow at min. output
Output mA for error
Exit
10. Select Output mA for error and enter a value (max of about 23mA) that you want the 4-20mA output
to produce in the event of an error (e.g. if the flow-rate is outside the set range).
11. Upon completion press ENTER to return to the FLOW READING screen.
3.7.5 How to convert the measured current to flow rate
Assume the maximum flow rate is Fmax (l/min) and the minimum flow rate Fmin is ‘0’ (l/min), as shown.
Fmax
[0-16mA scale]
Flow (l/min)
[0-20mA scale]
[4-20mA scale]
Fmin
I (mA)
4
8
12
16
20
To calculate the flow rate (l/min) for a measured current I(mA) then:
0-20mA
0-16mA
4-20mA
I × ( F max – F min )
- + F min
Flow rate = -----------------------------------------20
I × ( F max – F min )
- + F min
Flow rate = -----------------------------------------16
( I – 4 ) × ( F max – F min )
- + F min
Flow rate = -------------------------------------------------------( 16 )
Portaflow 330 User Manual
(Issue 3.3)
33
3: Operating Procedures
3.7.6 How to turn the pulse output OFF/ON
1.
With the instrument operating in the FLOW
READING mode, press the Pulse function
key to access the PULSE OUTPUT screen.
2.
A Pulse output is ON message
appears in the second line of the display.
3.
Select Exit and press ENTER to return to
the FLOW READING screen.
PULSE OUTPUT
Pulse output is ON
Flow units
Output
Vol per pulse
Pulse width (ms)
Exit
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
litres
Off
10.00
10
3.7.7 Generating a ‘Test’ pulse
If the PULSE OUTPUT menu screen is accessed from the SETUP INSTRUMENT menu you can generate a
‘test’ pulse by selecting Flow units and pressing the Option key.
Note: This does not apply if the PULSE OUTPUT menu is accessed by pressing the Pulse key when
operating in the FLOW READING mode.
3.7.8 Pulse output signal calibration
1.
With the instrument operating in the FLOW
READING mode, press the Pulse function
key to access the PULSE OUTPUT screen.
PULSE OUTPUT
Pulse output is ON
Flow units
Output
Vol per pulse
Pulse width (ms)
Exit
:
:
:
:
DD-MM-YY HH:MM:SS
Dim: mm
litres
Off
10.00
10
2.
To change the Flow units shown in this
menu you must return to the FLOW
READING screen and select the required
units usings keys 7,8 and 9.
3.
Select Vol per pulse and enter the required value. (In the example shown, a pulse is produced every
10 litres of flow).
Note: The pulse Output must be Off in order to change the Volume per pulse.
3.8
4.
Select a Pulse width (in ms) to suit the particular application – e.g. electro-mechanical counter. Refer to
the manufacturer’s data sheet for the minimum pulse width.
5.
Select Exit and press ENTER to return to the FLOW READING screen.
Printing
Logged data can be printed using an RS232-compatible printer.
3.8.1 How to print logged data using the RS232 printer
This procedure shows you how to set up and use the RS232 printer to print logged data.
Setting up an RS232 connection
1.
Connect the Portaflow 330 to the printer using the printer cable supplied. This cable is fitted with a 9-way
D-Type plug terminated as follows:
Pin 1 – N/C (No connection)
Pin 3 – RxD data from printer to Portaflow 330
Pin 5 – Signal ground
Pin 7 – N/C
Pin 9 – N/C
34
Pin 2 – TxD data from Portaflow 330 to printer
Pin 4 – N/C
Pin 6 – N/C
Pin 8 – N/C
Portaflow 330 User Manual
(Issue 3.3)
3: Operating Procedures
2.
3.
Select Setup RS232 / USB from the MAIN
MENU. This will access the SETUP RS232/
USB screen shown here.
Set the RS232 parameters to comply with
those for the printer.
Note: The parameters shown here are for
the Seiko DPU-414 Thermal Printer.
SETUP RS232 / USB
Handshaking
Baud Rate
Data Bits
Stop Bits
Parity
New line
Printer test
Exit
DD-MM-YY HH:MM:SS
Dim: mm
:
Xon/Xoff
:
1200
:
8
:
1
:
None
:
CR+LF
:
4.
Ensure that the printer has sufficient paper, is switched ON and ON LINE.
5.
To check that the Portaflow 330 printer interface is operational, select Printer test from the SETUP
RS232/USB menu. If the RS232 interface is working correctly the following message will be printed:
Micronics Ltd
<unit serial number>
If nothing is printed, check that the RS232 parameter settings are correct for the printer and that the
PF330 TxD and RxD signals are compatible with the printer’s RS232 interface. A gender changer may
be required to swap the TxD and RxD signals.
Printing logged data
1.
Select View Logged Data from the MAIN
MENU. This will display the VIEW LOGGED
DATA screen shown.
2.
Select Choose from list of sites
and select the site name for the log you
want to print.
3.
When you are ready to begin printing the log
select Download log.
DD-MM-YY HH:MM:SS
Dim: mm
Choose from list of sites
View log as text
View log as graph
Graph Y axis max. :
1.00
Download log
Clear log
Exit
DD-MM-YY HH:MM:SS
Dim: mm
Select Serial port or printer & press USB
RS232
Exit
4.
From the DOWNLOAD LOG screen select
RS232. This will open the SETUP RS232/
USB screen shown below.
DOWNLOAD LOG
5.
Select Send from the SETUP RS232/USB
screen. The printer should now start printing.
SETUP RS232/USB
6.
The message screen will be displayed while
printing takes place (see next page).
Send
Exit
Portaflow 330 User Manual
(Issue 3.3)
VIEW LOGGED DATA
DD-MM-YY
HH:MM:SS
35
3: Operating Procedures
7.
Printing will continue until all logged data is
output or until the key is pressed.
Note: The printer will continue printing until its
print buffer is empty, which may take a few
minutes.
36
SETUP RS232/USB
DD-MM-YY
HH:MM:SS
Data is being downloaded on RS232
This screen will clear
when download is completed.
Press to cancel Download
Portaflow 330 User Manual
(Issue 3.3)
4: Maintenance & Repair
This instrument does not contain any user-serviceable parts. The following notes are provided as a guide to
general equipment care
Do not disassemble this unit unless advised by Micronics.
Return the unit to an approved service agent or place of purchase
for further advice.
WARNING
1.
Ensure the unit is switched off and disconnected from the mains, then wipe the exterior of the instrument
with a clean, damp cloth or paper towel. The use of a solvent may damage the surface.
2.
The instrument contains a rechargable battery, dispose safely and in accordance with the local
regulations in force in the country of operation.
3.
Ensure all cables and connectors are kept clean and free from grease or contaminants. Connectors may
be cleaned with a general purpose cleaner if necessary.
4.
Avoid the use of excessive grease/ultrasonic couplant on the sensors as this may impair the
performance of the equipment. Excessive grease/couplant can be removed from the sensors and guide
rails using an absorbent paper towel and a general purpose solvent cleaner.
5.
We recommend that the ultrasonic couplant is replaced on the sensors every 6 months, especially on
pipes where the application is too hot to touch. If the signal level drops below 30% this is also an
indication that the sensors need re-greasing.
6.
Regularly check all cables/parts for damage. Replacement parts are available from Micronics.
7.
Ensure the person who services your instrument is qualified to do so. If in doubt, return the instrument to
Micronics with a detailed report on the nature of any problem.
8.
Ensure that suitable precautions are taken when using any materials to clean the instrument/sensors.
9.
The instrument and sensors should be calibrated at least once every 12 months. Contact Micronics or
your local service agent for details.
10. When returning product to Micronics make sure it is clean and please notify Micronics if the instrument
has been in contact with any hazardous substances.
11. If the instrument was supplied with dust or dirt caps make sure they are re-fitted when the instrument is
not in use.
Portaflow 330 User Manual
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37
4: Maintenance & Repair
38
Portaflow 330 User Manual
(Issue 3.3)
5: Troubleshooting
5.1
Overview
If you have a problem with your flow monitoring system it can be due to any of the following:
Faulty instrument
If you suspect the instrument is faulty you can check it out using a test block as described in Paragraph 5.4.
This will establish that the instrument is functional and receiving a healthy signal from the connected
transducers.
Incorrect setup
A low, or zero, signal could be caused by incorrect set-up such as:
•
•
•
•
Incorrect site data entered into the instrument.
Incorrect or non-matching ultrasonic transducers selected for use.
Incorrectly fitted transducers – lack of couplant applied, incorrect spacing, insecure attachment.
Poor connections between the probes and the instrument.
Application problem
If you are certain that the instrument is healthy and suitably set-up for the current site; and the probes are
properly assembled and fitted correctly, there could be an application problem concerned with the site.
Check such conditions such as:
Poor pipe outer surface quality
• Uneven surface preventing good surface contact with the transducer.
• Flaking paint (should be removed).
• Variable air gap in concrete-covered pipes affecting the ultrasonic signal quality.
Poor internal pipe construction
• Rough internal pipe walls affecting fluid flow (see roughness factor).
• Internal welds positioned in the transducer signal path affecting the signal quality.
• The ‘drippings’ in galvanised-dipped pipes or other irregularities interfering with the signal path.
Incorrect probe location
• Transducers located too close to bends or valves, disturbing the flow profile.
• Transducers located too close to insertion probes, disturbing the flow profile.
• For horizontal pipework transducers should not be positioned on the top of the pipe.
Poor fluid conditions within the pipe
• Fluid contains bubbles, high particle density or sludge.
• Air in the top of the pipe.
Low fluid flow within the pipe
• Pipe obstructions.
• Malfunctioning valve not opening fully (or closed inadvertently).
Liquid content problems
• Multiple liquid contents do not comply accurately to expected sound speed criteria.
• Very hot pipe almost turns water to steam and therefore exhibits the wrong speed characteristics –
could be due to reduced pipe pressure.
• Flashover – liquid turns into a gas because of lower than required pressure.
Portaflow 330 User Manual
(Issue 3.3)
39
5: Troubleshooting
5.2
General Troubleshooting Procedure
START
Recharge the battery.
Is the display blank?
Yes
If battery won't recharge then
replace the charger (if faulty) or
return the instrument for repair.
No
Turn instrument OFF/ON.
Is the display
scrambled or
hung up?
Yes
If the display is still scrambled/
hung up press the microprocessor
reset button. Return instrument
for repair if fault still present.
No
Note any active messages.
Are any
status messages
shown?
Yes
Refer to the message table in this
chapter to interpret the message
and view suggested response.
No
Measurement differs from expected value.
Ensure the temperature is set correctly.
Ensure transducers are positioned in accordance
with the recommended distance from bends etc.
Unstable measurements.
Problem probably due to non-constant fluid flow.
Check the following:
No (or poor) signal.
Ensure that the transducer cables are connected
correctly.
Ensure that sufficient acoustic couplant has been
applied to the transducers.
- the pipe data has been entered correctly.
Ensure flow velocity >0.01m/s.
- the fluid type has been entered correctly.
- the correct transducer type has been selected.
If triple reflex mode is selected, try selecting
double or single reflex instead.
- the pipe diameter is within specifications of the
selected transducers.
- the pipe is completely full.
Check the instrument using the test block.
- the pipe surface is not corroded, or protective
surface loose.
- no particles in the fluid.
Figure 5.1 Troubleshooting chart
40
Portaflow 330 User Manual
(Issue 3.3)
5: Troubleshooting
5.3
Warning & Status Messages
FLOW RATE ERRORS
No flow signal
Interpretation: This message appears when the transducers cannot send or receive
signals to each other.
Response: Firstly check that all cables are connected, transducers are on the pipe
correctly with sufficient couplant on the face.
This condition could also be due to a partially empty pipe, aerated liquid, particulate
content too high or when the condition of the pipe being measured is poor.
Flow signal is poor
Interpretation: This warning appears when the signal is lower than 25%.
Response: This could be due to an application problem, a poor quality pipe – see
also the conditions for No flow signal (above). Check for sufficient couplant.
Zero cut-off error!
Interpretation: You have entered an out-of-range value in the Zero cutoff field
in the Options menu.
Response: Enter a valid number.
Totaliser beyond
maximum!
Interpretation: The totaliser has overflowed its maximum count. The counter will
roll-over and restart from zero but this message alerts you to the fact.
Response: Reset the totaliser as described in Paragraph 3.6.1.
PULSE ERRORS
Pulse Rate > Max
Interpretation: The flow rate exceeds the capability of the pulse output – i.e. too
many pulses per second are required than can be achieved.
Response: Narrow the pulse width time or increase the volume per pulse, as
described in Paragraph 3.7.8.
Pulse volume error!
Interpretation: You have entered an out-of-range value in the Pulse volume
error field in the PULSE OUTPUT menu – see Paragraph 3.7.8.
Response: Enter a valid number.
Pulse width error
Interpretation: You have entered an out-of-range value in the Pulse width
error field in the PULSE OUTPUT menu – see Paragraph 3.7.8.
Response: Enter a valid number.
Portaflow 330 User Manual
(Issue 3.3)
41
5: Troubleshooting
4-20mA ERRORS
mA out > Max
Interpretation: The actual flow is higher than the maximum set on the mA range.
Response: Re-scale the 4-20mA output to be able to cope with the higher flow –
see Paragraph 3.7.4.
Calibration 20mA
Error!
NOTE: The 4-20mA output is calibrated before the instrument leaves the factory and
should not require further adjustment.
Interpretation: You have adjusted the DAC outside its accepted range when
calibrating the 20mA signal output.
Response: Re-calibrate the 4-20mA output – see Paragraph 3.7.4.
Calibration 4mA Error!
NOTE: The 4-20mA output is calibrated before the instrument leaves the factory and
should not require further adjustment.
Interpretation: You have adjusted the DAC outside its accepted range when
calibrating the 4mA signal output.
Response: Re-calibrate the 4-20mA output – see Paragraph 3.7.4.
DATA LOGGING ERRORS
Log not empty!
Interpretation: When using QuickStart and manually starting a log, this message is
displayed to warn you that a log already exists. The screen will offer the option to
cancel the logging, or save the log to another site.
Response: Attempt to save the existing log, then re-start logging. If logging still fails
to start, and the error message remains, then either all the sites are in use or all the
Logger memory is full. Check for any unwanted log files and delete them.
Log memory full
Interpretation: This occurs when all the data logger memory locations are filled.
The effect on the logging process will depend on the setting of the Memory
rollover field in the REAL TIME LOGGER screen (which may be set to Stop or
Overwrite).
Response: Clear the logger memory, as described in Paragraph 3.6.3.
BATTERY ERRORS
Battery Low
Interpretation: The battery has discharged to below 30% remaining. This leaves the
instrument with approximately 4 hours remaining, depending on power usage,
before it needs recharging.
Response: Recharge the internal battery at the earliest opportunity. Do not leave
the instrument for a prolonged period with a fully discharged battery.
Battery Exhausted
Interpretation: The battery is approaching a fully discharged state and the
instrument is about to store the internal data and shut-down.
Response: Recharge the battery.
42
Portaflow 330 User Manual
(Issue 3.3)
5: Troubleshooting
SET-UP ERRORS
Pipe OD out of range
Interpretation: You have entered an out-of-range value for the pipe outside
diameter dimension – i.e. larger or smaller than the unit or sensor can be used on.
Response: Enter a valid number.
Wall thickness out of
range
Interpretation: You have entered an out-of-range value for the pipe wall thickness
dimension – accepted range is 1mm - 75mm.
Response: Enter a valid number.
Lining thickness out of
range
Interpretation: You have entered an out-of-range value for the lining thickness
dimension – acceptable range is 0mm - 25mm.
Response: Enter a valid number.
Temperature range
Interpretation: You have entered an out-of-range value for the fluid Temperature.
Accepted temperature range -20°C to +300°C.
Response: Enter a valid number.
Invalid Date or Time
Interpretation: The entered Date or Time is invalid, or when setting up ‘timed’ data
logging the Stop time is set earlier than the Start time.
Response: Enter a valid Date and Time.
Sensors: INVALID
Interpretation: The selected temperature is higher than the maximum allowed for
the sensor type.
Response: Select alternative sensors or change the temperature.
Mode: Err Typ
Interpretation: The selected sensors are invalid and the mode cannot be verified.
Response: Select a valid sensor type and choose a mode that gives a non-zero
separation distance.
Portaflow 330 User Manual
(Issue 3.3)
43
5: Troubleshooting
5.4
Test Block
A test block is included with the Portaflow 330 equipment to
allow the transducers and inter-connecting cables to be
functionally checked.
1.
Switch ON the instrument.
2.
Select Quick start and enter the parameters shown
in the table below for the appropriate transducer type
(A or B):
Parameter
A Sensors
B Sensors
Pipe outside diameter
30.0mm
50.0mm
Pipe wall thickness
14.0mm
22.0mm
0.00
0.00
Pipe wall material
Plastic
Plastic
Fluid type
Water
Water
Mode
Diagonal
Diagonal
Temp
20°C
20°C
Pipe lining thickness
Figure 5.2 Test block
3.
When the above data is entered, the SENSOR SEPARATION screen will be displayed.
4.
Use the UP/DOWN scroll key to go to the SENSOR SELECTION menu. Select the appropriate sensor (the
default will be "A") and press ENTER to return to the SENSOR SELECTION menu.
5.
Select Sensor mode and position the cursor at Diagonal and press ENTER to return to the SENSOR
SELECTION menu.
6.
Select Exit and press ENTER to return to the SENSOR SEPARATION screen.
7.
Check that the parameters displayed are correct.
8.
Apply acoustic couplant to the sensors and attach them to the test block with the connectors positioned
towards the centre of the test block as shown, and temporarily secure them in place using elastic bands
or tape.
9.
Connect the sensors to the Portaflow 330 instrument using the cables provided.
10. Press ENTER to go to the FLOW READING screen.
11. Select the Options key to go to the FLOW READING OPTION menu and set the Damping to at least 10
seconds.
12. Select Exit and press ENTER to return to the FLOW READING menu.
13. The flow reading value displayed is not important. The fact that a reading is obtained indicates that the
instrument is functioning. This value may fluctuate but this is normal.
14. The signal strength indicator at the left of the display should show 3–4 bars.
5.5
Microprocessor Reset Facility
In the rare event that the Portaflow 330 instrument appears to totally hang-up, or displays total gibberish, you
can reset its microprocessor by carefully inserting a straightened paperclip into the pinhole located in the
right-hand side of the instrument to operate the internal reset switch. Hold the paperclip perpendicular to the
instrument while doing this.
44
Portaflow 330 User Manual
(Issue 3.3)
5: Troubleshooting
5.6
Diagnostics Display
This feature is designed for advanced users and is intended to provide information that will aid the user to
diagnose problems – e.g. no signal strength.
When operating in the FLOW READING mode you can access a diagnostics screen by pressing the Options
function key and then selecting Diagnostics from the FLOW READING OPTIONS screen. This will display
the operating values for the following parameters.
Calculated time (µs)
This is a value the instrument predicts will be the time in µsecs that it should take for the acoustic wave to
propagate across a particular pipe size. This value is ascertained from the data entered by the user. i.e. Pipe
size, material, sensor set etc.
Actual time (µs)
This is the value the instrument measures as the time taken for the acoustic wave to propagate across the
pipe. It is used to see if the signal is being taken from the burst, at the correct time to get the strongest signal.
This value is normally a few µs below the calculated µs value. If, however, this value is much greater than the
calculated time then there is a problem with the set-up.
Flow (m/s)
This displays flow velocity in m/sec to 3 decimal places.
Signal strength
This is the averaged value of Signal and should be a value between 800 and 1600 – where 800 is
approximately 50%, and 1600 is approximately 100%.
Gain
Gain values are typically in the range 600 to 850.
Switches
Typical Switches values are None and *10. On small pipes (and when using the test block) the value should
be None. A Switch value of *100 indicates poor sensor set-up or poor connections.
UP/DN time difference
The difference in transit times between the upstream and downstream signals due to the fluid flow.
Fluid propagation rate
This is the sound speed of the fluid calculated using the data entered by the user.
Sensor separation
The same value as displayed in the setup screen.
Portaflow 330 User Manual
(Issue 3.3)
45
5: Troubleshooting
46
Portaflow 330 User Manual
(Issue 3.3)
Appendix A: Specification
GENERAL
NEW! DSP Measurement Technique:
Transit time.
Timing Resolution:
50 pico-second, continuous signal level indication on display.
Improved! Flow Velocity Range:
Minimum Velocity 0.1m/s; Max Velocity 20m/s: Bi-directional.
Turn Down Ratio:
100:1
Accuracy:
±0.5% to ±2% of flow reading for flow rate >0.2m/s and Pipe ID >75mm.
±3% of flow reading for flow rate >0.2m/s and Pipe ID in range 13mm - 75mm.
±6% of flow reading for flow rate < 0.2m/s.
Repeatability:
±0.5% of measured value or ±0.02m/s whichever is the greater.
NEW! Reynolds Number Correction:
Flow velocity corrected for Reynolds number over entire velocity range.
Response Time:
< 500ms depending on pipe diameter.
Selectable Flow Units:
VELOCITY: m/sec, ft/sec.
VOLUME: l/s, l/min, l/h, gal/min, gal/h, USgals/min, USgals/h, Barrel/h, Barrel/day, m³/s,
m³/min, m³/h.
Selectable Volume Units:
l, gal, USgals, Barrel, m³.
Total Volume:
12 Digits - forward and reverse.
APPLICABLE FLUID TYPES
Fluid Condition:
Clean liquids or oils that have less than 3% by volume of particulate content. Applications
include river water, sea water, potable water, demineralised water, glycol/water mix,
hydraulic systems and diesel oil.
APPLICABLE PIPE TYPES
Pipe Materials:
Any sonic conducting medium such as Carbon Steel, Stainless Steel, Copper, UPVC, PVDF,
Concrete, Galvanised Steel, Mild Steel, Glass, Brass. Including Lined Pipes - Epoxy,
Rubber, Steel, Plastic.
Pipe Dimension (outside diameter):
Min 13mm; Max 5000mm with D sensor set.
Pipe Wall Thickness:
1mm - 75mm.
Pipe Lining:
Applicable pipe linings include Rubber, Glass, Concrete, Epoxy, Steel.
Pipe Lining Thickness:
0mm – 25mm.
Pipe Wall Temperature Range:
Standard sensor operating temperature is -20°C to +135°C.
Optional high temperature sensor operating temperature is -20°C to +200°C.
TRANSDUCER SETS
Standard:
Portaflow 330 User Manual
(Issue 3.3)
Temperature Range -20°C to +135°C.
'A-ST' (standard) 13 mm…115 mm pipe O.D. (2MHz).
'B-ST' (standard) 50 mm…2000 mm pipe O.D. (1MHz).
'C-ST' (standard) 1500 mm…5000 mm pipe O.D. (1MHz).
'D'* 1500 mm…5000 mm pipe O.D. * Temperature Range -20°C to +80°C (0.5MHz).
47
High Temperature:
Temperature Range -20°C to +200°C
'A-HT' (High Temp) 13 mm…115mm pipe O.D. (2MHz)
'B-HT' (High Temp) 50 mm…2000mm pipe O.D. (1MHz)
Improved! DATA LOGGER
Data Logged:
Log application details, flow rate.
Logs data selected in setup, e.g l, gals, USgals, m³.
No. data points:
98K.
Time Stamping:
All data points are time stamped.
No. Sites:
20 sites.
No. Data Points Per Site:
All free memory can be allocated to any site up to a max of 98,000 data points.
Programmable Logging Interval:
5 secs to 1hr – Updating on screen the end time of memory remaining as sample units are
selected. At overflow overwrite old data - or user selectable stop logging when memory is
full. Logged data downloadable to PC via USB cable or RS232. Transfer to Microsoft
Windows or Micronics user-compatible software package (optional).
LANGUAGES
Standard Supported Languages:
English, French, German, Italian, Spanish, Portuguese, Russian, Norwegian, Dutch,
Swedish.
OUTPUTS
NEW! USB Interface:
Supports USB 2.0 Full Speed (12Mbits/sec) mode, USB software driver provided.
Printer/Terminal:
Serial RS232-C inc. handshaking.
Analogue Output:
Resolution:
Alarm Currents:
Isolation:
Maximum Load:
4–20mA, 0–20mA, 0–16mA.
0.1% of full scale.
Any between 0–26mA.
1500V Opto-isolated.
620 Ohms.
Pulse Output TTL:
Pulse Repetition Rate:
Pulse Width:
Number Available: Opto-isolated MOSFET relay.
Up to 500 pulses/sec (depending on pulse width).
500ms for 1 pulse/sec.
5ms for 100 pulses/sec.
150mA.
Max Current:
ELECTRICAL
Supply Voltage:
Input Voltage Range:
9–24Vdc.
Power Consumption:
10.5W.
Battery:
Technology:
5-cell NiMH.
Capacity:
3.8AHr.
Operating time:
Typically 20 hours continuous with backlight and 4-20mA output OFF.
Recharge Time:
6.5 Hours.
Service Life:
>500 charge/discharge cycles.
Power Supply/Charger:
Manufacturer:
48
ECOPAC Model ECO-181WP12.
Portaflow 330 User Manual
(Issue 3.3)
Input Voltage Range:
90–264Vac.
Input Frequency Range:
47–63Hz.
Output Voltage:
12Vdc.
Max. Output Current:
1.5A.
Approvals:
UL, CUL, TUV, CB & CE.
MECHANICAL
Carrying case:
Rating:
All components are contained in a hard-wearing IP67 rated carrying case with a protective
moulded foam insert.
Enclosure:
Material:
Flame retardant injection moulded ABS.
Dimensions:
264mm x 168mm x 50mm.
Weight (Including Battery):
1.1 kg.
Protection:
IP54.
Keypad:
No. Keys:
16.
Display:
Format:
240 x 64 pixel graphic display, high contrast black-on-white, with backlight.
Viewing Angle:
Min 30°, typically 40°.
ENVIRONMENTAL
Operating Temperature:
–20°C to +50°C.
Storage Temperature:
–25°C to +65°C.
Operating Humidity:
90% RH MAX at +50°C.
Charging Temperature:
0°C to +40°C.
APPROVALS
Safety:
BS EN 61010.
EMC:
BS EN 61326 - 1:2006, BS EN 61326-2-3:2006.
Battery Charger:
EN61204 - 3.
SHIPPING INFORMATION
Box Dimensions:
410mm x 205mm x 355mm.
Weight:
7.5 kg.
Volumetric Weight:
5. kg.
Micronics reserve the right to alter any specification without notification.
PORTAFLOW™ 330 and PF330 are identical.
Portaflow 330 User Manual
(Issue 3.3)
49
A.1
50
CE Declaration of Conformity
Portaflow 330 User Manual
(Issue 3.3)
Portaflow 330 User Manual
(Issue 3.3)
51
52
Portaflow 330 User Manual
(Issue 3.3)
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