Valeport BFM001 User manual

MODEL 001 & 002 FLOWMETER
OPERATING MANUAL
Document ID
MANUAL-1550859975-1 | issue: 1.1
Date:
August 2021
This confidential document was prepared by the staff of Valeport Limited, the Company, and is the
property of the Company, which also owns the copyright therein. All rights conferred by the law of
the copyright and by virtue of international copyright conventions are reserved to the Company.
This document must not be copied, reprinted or reproduced in any material form, either wholly or in
part, and the contents of this document, and any method or technique available there from, must
not be disclosed to any other person whatsoever without the prior written consent of the Company.
© 2021 Valeport Ltd
Valeport Ltd
St Peter's Quay
Totnes TQ9 5EW
United Kingdom
Phone:
email:
Web:
[phone]
[email protected]
www.valeport.co.uk
As part of our policy of continuous development, we reserve the right to alter, without prior notice, all
specifications, designs, prices and conditions of supply for all our equipment

Contents
©2021 –Valeport Ltd
Page | b
Table of Contents
1Design & Configuration................................................................................................1
1.1 Basic Design .....................................................................................................................1
1.2 Operational Use ................................................................................................................1
2Assembly Instructions..................................................................................................2
2.1 Wading Set........................................................................................................................2
2.2 Suspension Set.................................................................................................................2
3Maintenance Instructions.............................................................................................3
3.1 To replace an Impeller ......................................................................................................3
3.1.1 To remove Impeller..........................................................................................................3
3.1.2 To replace Impeller..........................................................................................................3
3.2 To Replace an Impeller Shaft ...........................................................................................4
3.3 To Replace a Reed Switch Assembly ..............................................................................4
3.4 To Test the Free Running of the Impeller Assembly........................................................4
4Operation with 0012B Control Display Unit ..................................................................5
4.1 Introduction........................................................................................................................5
4.1.1 Physical Specification......................................................................................................5
4.1.2 Connectors......................................................................................................................5
4.1.3 Measurement Methods....................................................................................................5
5Operation.....................................................................................................................7
5.1 Switch On..........................................................................................................................7
5.2 Running the Model 0012B ................................................................................................7
5.3 Setting Up Running Mode.................................................................................................9
5.4 Changing Sampling Period...............................................................................................9
5.5 Options Menu..................................................................................................................10
5.6 Logging Menu..................................................................................................................11
5.6.1 Change Date\Time ........................................................................................................11
5.6.2 Viewing Stored Data......................................................................................................12
5.6.3 Extracting Data..............................................................................................................12
5.7 User Calibration Coefficients ..........................................................................................13
5.8 Reading Calibration Coefficients ....................................................................................13
5.9 Setting Calibration Coefficients.......................................................................................14
5.9.1 General Control Codes #000 - #014..............................................................................15
5.9.2 Table 1: Calibration Function Numbers and Meaning....................................................15
5.9.3 How to Program Calibration Coefficients.......................................................................15
6Flowmeter Spares......................................................................................................18
6.1 Gauging Accessories......................................................................................................19
7Figures.......................................................................................................................20
7.1 Figure 1 - Sectional Diagram BFM001...........................................................................20
7.2 Figure 2 - BFM001 Impeller Shaft Setting ......................................................................21
7.3 Figure 3 - Sectional Dagram of BFM002........................................................................22
7.4 Figure 4 - BFM002 Impeller Shaft Setting ......................................................................23
7.5 Figure 5 - Reed Switch Assembly...................................................................................24
8EU Declaration of Conformity - CE Marking...............................................................25

Contents
Page | c
©2021 –Valeport Ltd
Appendices..................................................................................................................26
A-1 Group Calibration of the 8011 Series Impeller............................................................26
A-1.1 Definition..........................................................................................................................26
A-1.2 Application.......................................................................................................................26
A-1.3 Recognition .....................................................................................................................26
A-1.4 Rating Equations and Table............................................................................................26
A-1.5 Reliability.........................................................................................................................27
A-1.6 Individual Calibration.......................................................................................................27
A-1.7 Further Details.................................................................................................................27
A-2 Group Calibration of the 1178 Series Impeller............................................................28
A-2.1 Summary.........................................................................................................................28
A-2.2 Method and Result of Group Calibration........................................................................29
A-2.2.1 Extract from Full Report.................................................................................................29
A-2.2.2 Acknowledgements .......................................................................................................29

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 1
1 Design & Configuration
The Valeport "Braystoke flowmeter” (BFM) 001 and BFM002 flowmeters have been designed to
withstand long periods of operation underwater and to need little maintenance with as few moving
parts as possible. They are designed to accurately measure water velocity in open channels with
flows varying from 0.03 m/s to 10 m/s (BFM001), or 0.05m/s to 5m/s (BFM002). The calibration of
the meters is based upon Group Calibrations carried out by HR Wallingford to standards
established by the British Standards Institution.
The flowmeters are available with both Wading and Suspension Sets to allow the equipment to be
employed in a wide variety of applications.
1.1 Basic Design
Refer to Figure 1 (BFM001) and Figure 3 (BFM002).
The basic principle of the Meter is to open and close a reed switch by rotating magnets around it,
to open and close a circuit producing a pulse. The pulse count is displayed on one of the liquid
crystal displays in the Control Unit. A bias magnet fitted into the meter hub produces a strong
magnetic field and allows only one pulse per impeller revolution. The only moving part of the Meter
is the neutrally buoyant impeller, which houses the magnets. The bearings fitted to this impeller are
made from PTFE plastic and are water lubricated. Since the impeller has very little weight in water,
the load on the bearings is negligible. The impeller and hub incorporate an anti‑weed system that
prevents weed entangling around the impeller shaft. Once the chamber around the impeller shaft
and bore have filled with water, very little or no silt will enter the bearings.
1.2 Operational Use
The flowmeter may be used in two different ways according to operational requirements, and
equipment supplied:
A. Wading ‑where the water depth permits, the operator may use the Meter clamped to the
wading rods, wading across the river or stream and making velocity measurements at the
required intervals and depths. The centimetre markings on the wading rods permit the
Meter to be accurately positioned at the required height in the water column, and also to
establish the total water depth to enable profile depths to be calculated.
B. Suspension ‑in deeper water the Meter may be suspended from a cable over a bridge or
parapet to make the required velocity measurements.

Section 2 | Assembly Instructions
Page | 2
©2021 –Valeport Ltd
2 Assembly Instructions
2.1 Wading Set
To assemble:
i. Remove wading rods from case and screw together.
ii. Screw rods into base.
iii. Remove suspension pin from Meter, and slide Meter on to rods, setting at required position.
iv. Screw on direction knob, adjusting Meter so that the impeller points in the direction indicated by
the arrow/dot on the direction knob. This makes operation of the unit easier when the Meter
cannot be seen in murky water.
v. Clip the wading signal cable into the Meter (see Figure 1) and plug the jack connector into the
Control Unit.
vi. Ensure that the battery is connected inside the Control Unit and the Meter is now ready for use.
Refer to Section Operational Use to learn how to operate the meter and control unit.
2.2 Suspension Set
To assemble:
i. Remove wading rod locking screw from the Meter body and screw in tailfin.
ii. Remove suspension pin, slide suspension bar through the Meter and set the bar at the required
height using the suspension pin.
iii. Clip the suspension cable to the top end of the suspension bar using the stainless steel shackle
provided, and clip the reed switch assembly into the Meter.
iv. If a Columbus Sinker Weight is being used, attach this to the bottom of the suspension bar.
v. Plug the jack connector into the Control Unit, ensure the battery is connected inside the Control
Unit and the Meter is ready for use.
The Balance Weight on the tailfin is pre-set for use in fresh water. The Meter should be suspended
in the water to be gauged and a check made that the Meter lies horizontally. The balance of the
unit may be adjusted by moving the balance weight on the tailfin, using the Allen key provided.
Refer to Section Operational Use to learn how to operate the meter and control unit.
Non‑Valeport Control Units
It is advised that if the revolution counter being used is not of Valeport origin, no more than 5
milliamps are passed through the reed switch, to avoid damage. Valeport cannot accept
responsibility for damage incurred when using non‑Valeport Control Units

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 3
3 Maintenance Instructions
The BFM001 and 002 flowmeters have been designed to require minimum maintenance under
normal operating conditions. The Control Unit and wading/suspension cables should require no
maintenance other than routine inspection and cleaning. It is recommended that the flowmeter
itself is thoroughly washed and cleaned in fresh water after each deployment. If the unit has been
used in silt‑laden water, the impeller should be removed and the impeller bearings and shaft also
washed in clean water. This will significantly extend the life of the impeller and shaft.
On no account should a sharp instrument be used in the cleaning process. For extreme
conditions, particularly where there are metallic particles in suspension, impellers with extended
skirts are available. Before repacking into the carrying cases, all items should be completely dried
to prevent any tarnishing of the equipment whilst in transit or storage. Instructions are detailed
below for routine maintenance procedures:
3.1 To replace an Impeller
Refer to Figure 1 (BFM001) and Figure 3 (BFM002).
3.1.1 To remove Impeller
i. Unscrew the nose cone of the impeller anticlockwise to remove.
ii. With a 3mm spanner, hold the nut nearest to the washer, and with another spanner release the
other nut.
iii. Remove both nuts, washer and impeller.
iv. Clean the hub face and the impeller shaft to remove any silt or dirt.
v. Check the wear condition of the shaft to ensure the bearing areas are clean and smooth.
If there is significant wear on the shaft, it should be replaced.
3.1.2 To replace Impeller
i. Stand the meter down on its end face with the shaft pointing upwards, and replace impeller with
the nose cone fitted.
ii. Unscrew the nose cone to allow the impeller to rest against the main body hub face.
iii. Hold the impeller down against the hub face and slowly screw down the nose cone until it
begins to lift the impeller away from the hub face.
iv. Check that the clearance between the nose cone and the impeller end face is within tolerance
(0.5 to 0.75 mm, 0.02 to 0.03 in). If the distance is outside this range, then the shaft will need to
be adjusted.
v. Remove the nose cone and fit the washer and nuts supplied, setting the gap between the
washer and front hub of the impeller to 1.5 mm (0.062 in).
vi. Replace nose cone, checking gap as in item iv. Finger tight only is sufficient; undue force may
cause damage.
At no time should any lubricant be applied to the shaft or bearings. The only lubrication needed
is given by the water the unit is used in.

Section 3 | Maintenance Instructions
Page | 4
©2021 –Valeport Ltd
3.2 To Replace an Impeller Shaft
Refer to Figures 2 (BFM001) and Figure 4 (BFM002).
i. Remove the impeller as described above.
ii. With a ring spanner, unscrew anti-clockwise the shaft lock nut and remove the shaft.
iii. Clean main body hub face to remove any silt or dirt.
iv. With a little Loctite applied to the shaft thread, replace the shaft and tighten the lock nut to give
the initial setting of the point of the shaft to the main body hub face.
v. Refit the impeller as described above, and check that the tolerances are correct.
vi. If shaft length requires adjusting, remove impeller, slacken lock nut, adjust shaft accordingly
and re-tighten.
vii. Finally, check that pulses are being received by the Control Unit.
3.3 To Replace a Reed Switch Assembly
Refer to Figure 5 - Reed Switch Assembly.
i. Hold reed switch adapter (cable end), unscrew the housing in an anticlockwise direction. If it is
tight, a pair of pliers may be used, but great care should be taken.
ii. When fitting the replacement reed switch assembly, ensure that the 'O' ring is clean and in
position.
3.4 To Test the Free Running of the Impeller Assembly
i. Stand the Meter on a flat surface with the impeller pointing vertically.
ii. Spin the impeller by hand and observe it slowing down. The time to stop is unimportant, but is
normally about 20 seconds.
iii. The impeller should stop spinning smoothly with no jerking being observed.
iv. When it stops, a slight tap on the flat surface will allow the impeller to rotate slightly until the
magnets come into line.
The above condition applies when the unit is dry and in perfect condition. If the impeller stops
spinning suddenly or fails to spin smoothly, the impeller shaft may be bent or the clearances may
require adjustment (see Figures 2/Figure 4)

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 5
4 Operation with 0012B Control Display Unit
4.1 Introduction
The Valeport Model 0012B Impeller Current Display Unit is a Real Time Speed display unit,
offering user selectable measurement of pulse against time averaging (moving, fixed or free
running) for all contact closure current meters, including those of other manufacturers. The 0012B
contains calibration details for the Valeport meters BFM001, 002, 004, 007 and 050, and allows
calibration coefficients for 4 other meters to be programmed in. User specific names for other
meter calibrations can also be entered for ease of user identification.
The 0012B also calculates standard deviation of the measured average data, battery low indicator
and optional . A logging facility is also optional, with a solid state memory providing 100 records.
4.1.1 Physical Specification
Size:
244mm (L) x 163mm (H) x 94mm (W)
Weight:
2kg
Material:
Moulded ABS Plastic
Sealed:
IP67 (10 seconds at 0.3 metres)
Strap:
Adjustable Shoulder Strap
Power:
8 'C' cells, providing life of approximately 400 hours (100 hours with backlight)
Temperature:
Operating range, -5 to +50°C.
4.1.2 Connectors
Jack Plug:
For connection to existing Valeport current meters
4-Way Mil Spec:
RS 232 connection for PC. Input for loading of calibration data and output of
real time averages or stored data (if logging option is fitted).
Pressure Valve:
Passive waterproof pressure equalising valve, to compensate for changes in
temperature.
4.1.3 Measurement Methods
4.1.3.1 Average Data
The average rates and speeds are computed as follows:
In TIME mode:
The number of whole pulses measured / average time set in seconds
In PULSE mode:
The number of pulses set / measured elapsed time for the pulses
If an average period is terminated early, then the calculation is carried out as follows:
In TIME and PULSE mode:
The number of whole pulses completed / elapsed time for the pulses [measured to 0.001
secs]
4.1.3.2 Real Time Data

Section 4 | Operation with 0012B Control Display Unit
Page | 6
©2021 –Valeport Ltd
The REAL TIME rate and speed are calculated from the time for one pulse, resolved to 0.0001
secs.
In TIME mode, the real time is calculated and displayed every second.
In PULSE mode, the real time is calculated every pulse but the display is only updated every 0.5
seconds [approx.].
4.1.3.3 Standard Deviation
The STANDARD DEVIATION [SD] is calculated from real time samples taken during the averaging
period (once per second in TIME mode or once per pulse in PULSE mode).
4.1.3.4 Averaging Modes
The unit performs one average, on a time or pulse basis. At the end of the average period the unit
stops and displays the average and SD, and will commence another averaging period when
requested by pressing START.
This is fixed average with automatic restart of average at the end of each period. The average and
SD from the previous period are displayed and held during the subsequent period, until updated.
The average and SD are calculated over the last period [pulses or time as set], and is updated
every second or pulse as appropriate. In TIME mode the display update is every second, but in
PULSE mode the fastest display update is about every 0.5 secs, although the calculation may be
done more quickly. When STOP is selected, the display is frozen at the last average that has been
computed.
If the measurement period is terminated prematurely (by pressing the STOP key), the average
values and standard deviation will be calculated from the last measurement parameter (pulses in
PULSE mode, seconds in TIME mode).
4.1.3.5 Data Output
In fixed average a data string of average data is outputted at the end of averaging period.
In moving average the last saved average is outputted when the user presses the STOP key.
In free running mode the data is outputted at the end of each fixed average period and when the
user presses the STOP key.
The data string includes meter type, rev/sec, speed, standard deviation, pulses, time.

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 7
5 Operation
5.1 Switch On
ON
Switch unit On using ON button. This is acknowledged by a beep from
the unit. This key is also used to toggle the unit Off at any point during
operation. Switching the unit On causes the following display to appear:
OPTIONS SET-UP
This key selects the OPTIONS SETUP menu, which allows the user to
set up various hardware configurations (Logging On/Off [optional],
Beeper On/Off and Backlight On/Off [optional]). This menu also allows
access to the USER CALIBRATION menu, and to the LOGGING
SETUP menu. For further information refer to Section: Options Menu
CONTINUE
Places the unit in Run Mode. See Section: Running the Model 0012B
5.2 Running the Model 0012B
Pressing CONTINUE at the title screen, or pressing EXIT at any of the OPTION SET-UP screens
(see Section: Options Menu) reveals one of the six possible displays shown below, depending on
what mode the unit was in when last used.
DISPLAY 1: FIXED AVERAGE, USER SET TIME DISPLAY:
DISPLAY 2: FIXED AVERAGE, USER SET PULSE COUNT DISPLAY:
I M P E L L E R C U R R E N T M E T E R D IS P L A Y M E T E R
V A L E P O R T M O D E L 0 0 1 2 B
V E R S I O N 3 . 0 0
< < < O P T I O N S S E T U P C O N T I N U E > > >

Section 5 | Operation
Page | 8
©2021 –Valeport Ltd
DISPLAY 3: MOVING AVERAGE, USER SET TIME DISPLAY:
DISPLAY 4: MOVING AVERAGE, USER SET PULSE COUNT DISPLAY:
DISPLAY 5: FREE RUNNING, TIME DISPLAY:
DISPLAY 6: FREE RUNNING, PULSE COUNT DISPLAY:
An explanation of the different averaging modes can be found in section: Measurement Methods
SETUP
Press this key to alter current sampling regime. See Section: Setting Up Running
Mode.
START
Unit will begin sampling in mode currently set. The real time data will be displayed
at the bottom of the screen, and a count of either pulses or seconds displayed at
the top. If the unit is in logging mode, the current record number will be displayed
at the top right hand side of the screen. If the data interface lead is connected, the
end of average values will also be sent to the PC.
STOP
Press to cease sampling. This will force an early end to an averaging period
LOW BATT
When there is 10 hours of battery life remaining (with backlight), this message will
be displayed at the bottom right hand corner of the screen (see DISPLAY 1 for an
example). The message will remain until batteries are replaced

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 9
5.3 Setting Up Running Mode
Selecting SET-UP in the Run Menu reveals the following display.
A further example screen is shown below.
M/SEC FT/SEC
Toggles between measuring the Speed in metres and feet per second.
FIXED MOVING
FREE
Toggles the averaging mode between the three states. Refer to Section:
Measurement Methods for further details.
PULSES TIME
Toggles the averaging period counting mode between pulses and seconds.
CHANGE
Allows access to the CHANGE SAMPLING menu, which enables the user to
alter the number of seconds or pulses in the averaging period. See Section:
Changing Sampling Period.
METER
The type of meter currently selected is displayed here. Toggle between the
available meters by pressing the key. Pre-programmed meters available are
the BFM001, 002, 004 (19mm), 004 (28mm), 007 & 050. For details of how to
program the calibration details of another meter, refer to Section: Options
Menu.
ACCEPT
When the sampling regime is correctly set up, press this key to return to the
RUN menu (Section: Running the Model 0012B).
5.4 Changing Sampling Period
Selecting CHANGE in the Sampling Set-up screen reveals one of the following displays,
depending on whether pulses or seconds have been selected for the sampling regime.

Section 5 | Operation
Page | 10
©2021 –Valeport Ltd
INCR DECR
Toggles between increasing and decreasing the number of seconds/pulses
when the relevant key is pressed.
100'S
Changes the number of 100's of pulses/seconds in the averaging period.
10'S
Changes the number of 10's of pulses/seconds in the averaging period.
1's
Changes the number of 1's of pulses/seconds in the averaging period.
EXIT
Returns to the RUN MENU SETUP screen.
5.5 Options Menu
Pressing OPTIONS SET-UP at the Title Screen reveals the following display.
LOGGING
YES/NO
Optional. If fitted, this key switches the logging facility On and Off. Up to 100
records may be stored.
BEEPER ON/OFF
Toggles audible acknowledgment of pulses On and Off.
BACKLIGHT
ON/OFF
Optional. If backlight is fitted, this key toggles it On and Off. Refer to Section:
Physical Specification for details of battery life with and without backlight.
LOGGING MENU
Allows access to LOGGING MENU (if option fitted). This enables the user to
view or erase stored data, to extract it to a PC (via data interface lead), and to
set the unit date and time. Proceed to Section: Logging Menu
USER CAL
Allows access to USER CALIBRATION MENU. This enables the user to read
or input their own calibration coefficients or impeller name. Proceed to
Section: User Calibration Coefficients
EXIT
Puts the unit into Run Mode, using the hardware configurations selected (see
Section: Running the Model 0012B).
O P T I O N S M E N U
< < < L O G G I N G Y E S / N O L O G G I N G M E N U > > >
< < < B E E P E R O N / O F F U S E R C A L > > >
< < < B A C K L I G H T O N / O F F E X I T > > >

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 11
5.6 Logging Menu
Selecting LOGGING MENU at the OPTIONS MENU reveals the following display.
SET DATE/TIME
Allows access to the CHANGE DATE/TIME screen. This allows the user to
alter the unit's internal clock, for the purpose of correctly time stamping the
recorded data. See Section: Change Date\Time
RESET #IDENT
Sets the memory pointer to record #1. The next record that is logged will be
#1, replacing what was stored there before.
VIEW DATA
Allows user to see logged data. See Section: Viewing Stored Data
EXTRACT DATA
Allows user to upload stored data to a PC. See Section: Extracting Data
ERASE MEMORY
Clears all stored data from the unit. A screen will appear, requesting
confirmation that the user wishes to erase memory. Press YES to continue,
or EXIT to return to LOGGING MENU. If YES is pressed, a message will
confirm that memory has been erased. Press EXIT to return to LOGGING
MENU.
EXIT
Returns user to OPTIONS MENU. Refer to Section: Options Menu
5.6.1 Change Date\Time
Selecting SET DATE/TIME at the LOGGING MENU reveals the following display.
INCREASE
Increases the currently selected number by 1.
DECREASE
Decreases the currently selected number by 1.
NEXT
Selects the next number in the time/date sequence.
EXIT
Returns user to LOGGING MENU. Refer to Section: Logging Menu
L O G G I N G M E N U
< < < S E T D A T E / T I M E E X T R A C T D A T A > > >
< < < R E S E T # I D E N T E R A S E M E M O R Y > > >
< < < V I E W D A T A E X I T > > >
C H A N G E D A T E / T I M E
< < < N E X T I N C R E A S E > > >
T I M E : H H : M M D E C R E A S E > > >
D A T E : D D / M M / Y Y Y Y
E X I T > > >

Section 5 | Operation
Page | 12
©2021 –Valeport Ltd
5.6.2 Viewing Stored Data
Selecting VIEW DATA at the LOGGING MENU reveals a display similar to that shown below. If no
data has been stored, the message NO DATA STORED will be displayed.
The display shows the record number, impeller type, units in which velocity is measured (metres or
feet per second), run mode, and time at which the record was stored.
UP
Toggles the record to be viewed up by one.
DOWN
Toggles the record to be viewed down by one
EXIT
Returns to the LOGGING MENU. Refer to Section: Logging Menu
VIEW
Allows user to view the record currently selected. A display of the format
shown below will be seen. Press EXIT on this screen to return to the VIEW
DATA screen, allowing another record to be seen.
5.6.3 Extracting Data
Selecting EXTRACT DATA at the LOGGING MENU reveals the following display.
Connect the unit to a PC via the data interface lead supplied. Run a terminal emulation program
on the PC, ensuring that communications are correctly set to 4800 baud, 8 data bits, 1 stop bit, no
parity bits. If the data should be saved, make sure that the data is directed to a file name. It is
uploaded as a text file, so can be read into a word processor or spreadsheet application.
UPLOAD
Begins to upload data to PC. Screens similar to those shown below will
appear
EXIT
Returns to LOGGING MENU. Refer to Section: Logging Menu
# I D E N T 1 2
I M P E L L E R T Y P E 0 0 2 U P > > >
U N I T S M E T R E S
R U N M O D E F I X E D A V E R A G E T I M E D O W N > > >
3 1 / 1 2 / 1 9 9 9 2 3 : 5 9 : 5 9
< < < V I E W E X I T > > >
# I D E N T X X
r e v / s e c X X . X X
s p e e d X . X X X
s t d d e v X . X X X
p u l s e s X X X X
t i m e X X X . X
E X I T > > >
E X T R A C T D A T A
U P L O A D > > >
P L E A S E C O N N E C T P C
E X I T > > >

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 13
When data uploading is finished, the following screen appears, showing the #IDENT of the last
record to be uploaded.
EXIT
Returns to LOGGING MENU. Refer to Section: Logging Menu
5.7 User Calibration Coefficients
Selecting USER CAL at the OPTIONS MENU reveals the following display.
READ USER
CAL
Allows the user to read the name and calibration coefficients of the currently
selected impeller. Proceed to Section: Reading Calibration Coefficients
SET USER CAL
Allows the user to install the name and calibration coefficients of a new
meter. See Section: Setting Calibration Coefficients
EXIT
Puts the unit into Run Mode. Refer to Section: Running the Model 0012B
5.8 Reading Calibration Coefficients
Selecting READ USER CAL reveals the calibration data of the meter currently selected in the
sample mode. The format of the screen depends on the type of calibration used. Below are
examples of LINE FIT and POLYNOMIAL FIT displays.
U P L O A D I N G D A T A
# I D E N T X X
F I N I S H E D U P L O A D I N G D A T A
# I D E N T X X
E X I T > > >
S E T U S E R C A L > > >
R E A D U S E R C A L > > >
E X I T > > >
L I N E F I T I M P E L L E R T Y P E
S L O P E 1 O F F S E T 1
E N D 1 S L O P E 2
O F F S E T 2 E N D 2
S L O P E 3 O F F S E T 3
E N D 3 S L O P E 4
O F F S E T 4 E N D 4 E X I T > > >

Section 5 | Operation
Page | 14
©2021 –Valeport Ltd
EXIT
Puts the unit into Run Mode. Refer to Section: Running the Model 0012B
5.9 Setting Calibration Coefficients
Selecting SET USER CAL reveals the following display.
Connect a PC to the Model 0012B using the data interface lead.
Using a terminal emulation program, program in the required calibration coefficients using the
control codes and format detailed below:
The Model 0012B will not be able to display speed data if the pulse output from the impeller
exceeds 50Hz. The operating ranges of all Valeport impellers fall well within this, but if inputting
calibration data for a different meter, check that the expected pulse frequency is below 50Hz. If a
larger frequency is anticipated, contact Valeport Limited.
P O L Y N O M I A L F I T I M P E L L E R T Y P E
C O E F F 7 C O E F F 6
C O E F F 5 C O E F F 4
C O E F F 3 C O E F F 2
C O E F F 1 C O E F F 0
E X I T > > >
P L E A S E C O N N E C T E X T E R N A L P C

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 15
5.9.1 General Control Codes #000 - #014
Code
Followed By
space and
Operation
Access
#000
Exit calibration set-up mode
All
#001
New calibration
string<cr>
OTHER 1 IMPELLER
Changes calibration to New_calibration string sent must
be to the required format using spaces as separators
All
#002
New calibration
string<cr>
OTHER 2 IMPELLER
Changes calibration to New_calibration string sent must
be to the required format using spaces as separators
All
#003
New calibration
string<cr>
OTHER 3 IMPELLER
Changes calibration to New_calibration string sent must
be to the required format using spaces as separators
All
#004
New calibration
string<cr>
OTHER 4 IMPELLER
Changes calibration to New_calibration string sent must
be to the required format using spaces as separators
All
#011
New name
string<cr>
OTHER 1 IMPELLER
Changes the name of other 1 impeller from other 1 to new
name string - for ease of user identification.
All
#012
New name
string<cr>
OTHER 2 IMPELLER
Changes the name of other 2 impeller from other 2 to new
name string - for ease of user identification.
All
#013
New name
string<cr>
OTHER 3 IMPELLER
Changes the name of other 3 impeller from other 3 to new
name string - for ease of user identification.
All
#014
New name
string<cr>
OTHER 4 IMPELLER
Changes the name of other 4 impeller from other 4 to new
name string - for ease of user identification.
All
5.9.2 Table 1: Calibration Function Numbers and Meaning
Calibration Function No.
OPERATION
DEFINED
0
Not defined
NO
1
Straight line fit
YES
2
Polynomial fit
YES
5.9.3 How to Program Calibration Coefficients.
First, decide if your calibration is a polynomial equation or a series of straight line fits. For line fits,
proceed to Section: Straight Line Fits. For polynomial fits, proceed to Section: Polynomial Fits.

Section 5 | Operation
Page | 16
©2021 –Valeport Ltd
5.9.3.1 Straight Line Fits.
In a terminal emulation program (for example TERMINAL in Windows), set the communications to
4800 baud, 8 data bits, 1 stop bit, 0 parity bits. Also, check that the correct comms port on the PC
is being used. If necessary, check that the Local Echo is On, or you will not be able to see what
you are typing appear on the screen.
With the 0012B CDU connected to the PC via the interface lead provided, select USER CAL from
the OPTIONS MENU and then SET USER CAL. Check the PC connection.
In the terminal emulation program, the message 'Enter Calibration Data' appears.
The calibration data should then be entered as follows:-
#CODE Ident_number Coefficient1 Offset1 Max_lt1 Coefficient2 Offset2 Max_lt2 Coefficient3
Offset3 Max_lt3 Coefficient4 Offset4 Max_lt4<cr>
where
#CODE
=
the set calibration function code (from Section: General Control Codes
Ident_number
=
Calibration Function No. For a line fit, this will be 1. (See Table 1
above).
Coefficient
=
slope of the line.
Offset
=
the line constant
Max_lt
=
the end point beyond which the present straight line parameters no
longer operate
All straight line fits are considered to be four line fits, and therefore sufficient coefficients must
always be entered to ensure correct calculation of the calibration factor. For line fits less than four
line fits the unused parameters should be filled in with zeros.
For example, the calibration for the BFM001 is a two straight line fit, with equations:
V = 0.013 + 0.2512n (up to 0.32 revs/sec)
V = 0.008 + 0.2667n (from 0.32 up to 11.28 revs/sec)
where V is velocity in m/s and n is revolutions per second.
To enter this calibration in OTHER3, the following would be typed. Note the space after each
number:
#003 1 0.2512 0.013 0.32 0.2667 0.008 11.28 0 0 0 0 0 0
To change the name of the meter, type the correct #CODE followed by the new name (upper and
lower cases are recognised). For example, to change the name from OTHER3 to BFM001, enter:
#013 BFM001
When all required data has been input, enter #000, and the 0012B will automatically return to the
Options Menu.

Model 001 & 002 Flowmeter Operating Manual
MANUAL-1550859975-1 | issue: 1.1
©2021 –Valeport Ltd
Page | 17
5.9.3.2 Polynomial Fits.
In a terminal emulation program (for example TERMINAL in Windows), set the communications to
4800 baud, 8 data bits, 1 stop bit, 0 parity bits. Also, check that the correct comms port on the PC
is being used. If necessary, check that the Local Echo is On, or you will not be able to see what
you are typing appear on the screen.
With the 0012B CDU connected to the PC via the interface lead provided, select USER CAL from
the OPTIONS MENU and then SET USER CAL. Check the PC connection.
In the terminal emulation program, the message 'Enter Calibration Data' appears.
The calibration data should then be entered as follows:-
#CODE Ident_number C7 C6 C5 C4 C3 C2 C1 C0<cr>
where
#CODE
=
the set calibration function code see Section: General Control Codes
Ident_number
=
Calibration Function No. For a polynomial fits, this will be 2. (See
Table 1 above).
C<number>
=
X Coefficient factor
(X7 * C7) +( X6*C6) + (X5 * C5) + (X4 * C4) + (X3 * C3) + (X2 * C2) + (X1 * C1) + C0
All polynomial fits are considered to be seventh order fits (i.e. of the format above), and therefore
sufficient coefficients must always be entered to ensure correct calculation of the calibration factor.
For polynomial fits less than seventh order, the unused parameters should be filled in with zeros.
For example, your calibration equation may be:
V = 0.001n5 + 0.003n4 + 0.6n3 + 7.03n2 + 0.6n +4.1
where V is velocity in m/s and n is revolutions per second.
To enter this calibration in OTHER3, the following would be typed. Note the space after each
number:
#003 2 0 0 0.001 0.003 0.6 7.03 0.6 4.1
To change the name of the meter, type the correct #CODE followed by the new name (upper and
lower cases are recognised). For example, to change the name from OTHER3 to BFM001, enter:
#013 BFM001
When all required data has been input, enter #000, and the 0012B will automatically return to the
Options Menu.