KeypadThe keypad is used to set the flowmeter. The function of the keys are as follows:
Display
TOP UP KEYThis key (hold 2 sec.) is used to switch between operator
menu and setup menu. In the converter setup menu, a short
press will cause a return to the previous menu.
FORWARD KEYThis key is used to step forward through the menus. It is the
only key normally used by the operator.
BACKWARD KEYThis key is used to step backward through the menus.
CHANGE KEYThis key changes the settings or numerical values.
SELECT KEYThis key selects the figures to be changed.
LOCK/UNLOCK KEYThis key allows the operator to change settings and gives
access to submenus.
The display is alphanumerical and indicates flow values, flowmeter settings and error messsages.
The upper line is for primary flow readings and will always show either mass flowrate, volume
flowrate, density, temperature, totalizer 1 or totalizer 2. The line is divided into 3 fields.
S: Sign field
P: Primary field for numerical value
U: Unit field
The center line is the title line (T) with individual information according to the selected operator or
setup menu.
The lowest line is the subtitle line (ST) which either will add information to the title line or keep
individual information independent of the title line.
Document 06EN003327 Rev. -
F: The alarm field. Two flashing triangles will appear by a fault condition.
M: The mode field. The symbols indicate the following.
Communication modeBasic settings
Service modeOutput
Operator menuExternal input
Product identitySensor characteristic
Language modeReset mode
L: The lock field. Indicates the function of the lock key.
Ready for changeAccess to submenu (Press )
Value lockedRESET MODE: Zero setting of
51 FlexCOR
totalizers and initialization of setting
™ Model CMF Series
Commissioning
Fluid Components Intl
7.2Menu build-up
The menu structure of a specific type of transmitter is shown in a menu overview map.
Details of how a specific parameter is set is shown in a menu detail map for the specific parameter.
The menu structure is valid for the title and subtitle line only. The upper line is for primary readings
only and will always be active with either mass flow rate, volume flowrate, density, temperature,
totalizer 1 or totalizer 2.
The menu is built up in two parts. An operator menu and a setup menu.
Operator menu
The operator menu is for daily operation. The operator menu is customized in the operator menu
setup. The signal converter always starts in the operator menu no. 1. The page forward and page
backward keys are used to step through the operator menus.
Setup menu
The setup menu is for commissioning and service only.
The setup menu is accessed by pressing the top up key for 2 seconds. The setup menu will operate
in two modes:
-View mode
-Setup mode
View mode is a read only mode. The pre-selected settings can only be scanned.
Setup mode is a read and write mode. The pre-selected settings can be scanned and changed.
Access to the setup mode is protected with a password. The factory set password is 1000.
Access to a submenu in the set up menu is gained by the lock key. A short press on the top up key
will bring back the previous menu. A long press (2 sec.) on the top up key will exit the setup menu
and bring back the operator menu no. 1.
7.2.1 Password
Commissioning
The SETUP MENU can be operated in two different modes:
VIEW MODE (Read only)
CHANGE MODE (Read and write mode)
The view mode is always accessed by pressing the forward key when in the password menu.
Access to change mode is protected by a user code. The user code is factory set to 1000, but can
be changed to any value between 1000 and 9999 in the change password menu.
The factory setting of 1000 can be re-established as follows:
-Switch off power suppply
-Press the TOP UP key while switching on the power supply
The user code is reset to 1000.
FlexCOR™Model CMF Series 52
Document 06EN003327 Rev. -
Fluid Components Intl
Document 06EN003327 Rev. -
53 FlexCOR
Commissioning
™ Model CMF Series
Fluid Components Intl
7.4Basic settings
Menu detail
Commissioning
FlexCOR™Model CMF Series 54
Document 06EN003327 Rev. -
Fluid Components Intl
Basic settings
Menu description
Setting of min./max.
values and units
Example; programming
of max. mass flow
The basic setting menu is used for basic configuration of the mass flow meter with a choice of units,
minimum and maximum limits for display and analog/digital outputs for all measurement
parameters, i.e. mass flow, volume flow, fraction, temperature and density.
Numerical values are entered by placing the cursor in the field that is to be set using the SELECT
key. Press unlock and the value can be changed using the change key. The desired value is locked
by activating LOCK.
Positioning of the decimal point is carried out by placing the cursor below the decimal point using
the SELECT key. The position can be set using the set key. The LOCK key is activated and the
decimal point is now positioned.
Selecting the unit: Place the cursor below the unit using SELECT key. Set the desired unit using
CHANGE key. Activate the LOCK key to save the setting. Place the cursor below the time scale
using SELECT key and choose the desired time scale using CHANGE, then save the desired value
by activating the LOCK key.
The maximum and minimum values set will then apply to all current and frequency/pulse outputs,
e.g. where the min. value will correspond to 0/4 mA depending on the setting of the current output
and the max. will correspond to 20 mA.
As example we want to change the default setting of the maximum mass flow on a CMF-A from
20 Kg/h to .45 lb/min.
Keypad operationImplementationDisplay on Transmitter
Push for 2 sec.To access thePassword
user password0000
Push onceTo unlock passwordCHANGE
0000
Push onceTo enter 1000 asCHANGE
password1000
Push onceTo lock password and toCONV.SETUP MODE>
enter the menuBasic settings
Push onceTo enter basic settingFlow direction
submenuPositive
Push onceTo go to mass flowMassflow max.
max. setting000020. kg/h
Push onceTo change num.Massflow max.
value000020. kg/h
Push 4 timesTo move the cursorMassflow max.
to the num. position000020. kg/h
PushUntil 4 appearsMassflow max.
000040. kg/h
Push onceTo move the cursor toMassflow max.
the next num. position000040. kg/h
PushTill 5 appearsMassflow max.
000045. kg/h
Push onceTo move the cursor toMassflow max.
the decimal point000045. kg/h
PushTo position the decimalMassflow max.
point correct0000.45 kg/h
Push 3 timesTo move cursorMassflow max.
to "Kg" unit0000.45 kg/h
Push twiceTo change units to lb.Massflow max.
0000.45Lb/h
Push onceTo move cursor toMassflow max.
the "h" unit0000.45Lb/h
Push 3 timesTo change "h" to "min"Massflow max.
0000.45 Lb/min
PushTo lock the new settingMassflow max.
of the mass flowmeter000.45 Lb/m
Push twiceTransmitter reverts to
standard operation
Commissioning
Document 06EN003327 Rev. -
55 FlexCOR
™ Model CMF Series
Fluid Components Intl
Setting the totalizer
Setting the low-flow cut-off
Setting the empty pipe limit
Setting the noise filter
Setting the error level
The instrument is equipped with two independent totalizers that can be set for totalizing mass flow,
fraction A, faction B or volume.
Forward: only flow in a positive direction is totalized.
Reverse: only flow in a negative flow direction is totalized.
Net: the total net flow is measured.
In certain applications flow signals are not required below a given flow. In this menu a
0 to 10% cut-off of the maximum flow can be selected. By default the meter is set to 1.5%.
If detection of an empty pipe or of a density value is needed, it can be set under this menu option.
If the set density value is measured this will activate a relay or the digital output. In addition will
be recorded in the error log.
The instrument carries out signal processing internally using a patented FFT (Fast Fourier
Transformation) algorithm. This technology allows noisy sensor signals to be filtered. For
example, if the instrument is exposed to a strongly pulsating flow, varying pumping frequencies
or strong pressure gradient, etc. this can in certain cases result in noise on the pick-up signals,
with measurement error as a result. This measurement error can be reduced by increasing the
filtration under the menu option noise filter. Setting 5 represents the maximum possible filtration
and setting 1 represents the minimum possible filtration.
The instrument contains a particularly informative error monitoring system that the user can
configure according to need. The system is described in more detail in the section on error
handling.
Commissioning
FlexCOR™Model CMF Series 56
Document 06EN003327 Rev. -
7.5.1 Outputs setting
menu
Current output
Fluid Components Intl
Menu detail
The current output should be set to off when not used, otherwise an error will be pending if the meter
detects an open loop.
Digital output
Pulse
Digital output
Frequency
The digital output menu can be used for generating a frequency proportional output signal, for
pulse signal (totalizing), indicating error level/number, limit or flow direction or as batch output. Only
one function can be implemented for each output section.
Document 06EN003327 Rev. -
57 FlexCOR
Commissioning
™ Model CMF Series
Fluid Components Intl
Digital output
Error level
Digital output
Error number
Digital output
Limit/direction
Menu detail
If the error statusis to be output at the digital output there
are two options. Select error level to output the system’s
current error status or error number if a specific error is
to be indicated by the digital output.
Both types of error message are described in more
detail in the section error system.
Acceptance level is set in the basic settings.
Digital output
Flow direction
1 set point
2 set points
Commissioning
2 separate set points
Limit switches are available for both digital and relay output and can be used for mass flow, fraction,
volume flow, temperature or density.
To set the output to show flow direction then select: 1 set point at 0% flow; hysteresis 5%.
To have a flow, temperature, density or fraction area monitored via the digital output then select
2 set points.
If 2 set points have to activate two separate outputs, each set point has to be selected individually
one for digital output and the other for relay output.
FlexCOR™Model CMF Series 58
Document 06EN003327 Rev. -
Digital output
Batch menu
Fluid Components Intl
Menu detail
Batch
Menu description
Batch menu
Batching can be set to mass or volume. The desired quantity is called the batch quantity.
Batch compensation allows addition/subtraction of a fixed quantity in order to compensate for
valve delays, etc.
Compensation to be carried out dynamically, i.e. independently of the flow rate in the system, the
transmitter can calculate the system’s time constant – this is known as the lead const.
Batch time error is used to monitor that a batch is executed within the specified period, which is
set by max. batch time. If the batch is not completed within the time set an error message will output
by the Errorlog/pending.
Batch overrun error monitors that the quantity passing through the valve when it is closed does
not exceed the quantity set. This function can detect irregular valve function due to blockage, failure
to close due to wear, etc. The error is notified by the errorlog/pending function.
Batch counter is used to set the batch display. If up is selected the display counts from 0 up to
the selected batch quantity. If down is selected it counts down from batch quantity to 0 for each
batch. The operator can follow the progress when running in a batch application.
Commissioning
Document 06EN003327 Rev. -
59 FlexCOR
™ Model CMF Series
Fluid Components Intl
7.5.2 Relay output
7.5.3 External input
Menu detail
The output functions error level, error number and direction/limit can also be implemented on the
relay output. Programming of the realy output is identical as is the digital output.
Commissioning
External input menu
The transmitter has one digital input available. If the input is activated with a logic signal
(11 - 30 V d.c.) the meter carries out the activity selected under the menu option. The following
functions can be selected:
Start batch. If the transmitter is used for batching this can be activated automatically by this
function.
Hold/continue is also used in connection with batching and on being activated for the first time
will pause the batch. When activated again it will continue the batch.
Stop batch will stop the batch, i.e. the digital output goes to logic 0. The batch is then reset.
Zero adjust activates the automatic 0-point adjustment.
Reset totalizer can be used to reset internal totalizer 1, 2 or both.
Force output forces all outputs to adopt the value selected in the menu. For example, if 100% is
selected, this means that on activation of external output the current output will show 20 mA and
the frequency output will show 10,000 kHz if set to 0 - 10 kHz.
Freeze input freezes all the current measured values in the display and outputs.
FlexCOR™Model CMF Series 60
Document 06EN003327 Rev. -
7.5.4 Sensor
characteristics
Fluid Components Intl
Menu detail
Correction factors
When the SENSORPROM® memory unit is installed only the parameters correction factor,
density offset, fraction offset and table slope can be changed.
If you wish to change the mass flow measurement a percentage shift can be set under the menu
option correction factor. The change affects all flow-related values.
If you wish to change the density measurement a percentage shift can be set under the menu option
density factor.
If an offset needs to be added to the density measurement this is done with density offset.
If the fraction flowmeter function is used it is possible to customize the function in accordance with
the following equation:
Fraction = Ax + B, where
A = Table slope
B = Fraction offset
x = Measured fraction
Commissioning
Document 06EN003327 Rev. -
61 FlexCor
™ Model CMF Series
Fluid Components Intl
7.5.5 Reset mode
Menu detail
Reset mode
Menu description
Commissioning
Reset mode
In the reset mode menu the totalizer 1 and 2 and the batch cycle counter can be reset.
0-point adjustment
0-point adjustment of the flow meter is done in the zero adjust menu. The adjustment can be made
automatically where the meter measures and calculates the correct 0-point. In manual mode the
0-point can be programmed if this is known. Normally the automode is used.
Zero adjust time determines the period of time for the automatic 0-point adjustment. As default
a period of 30 sec. is used which normally is enough for a stable 0-point mesurement. If the
flowmeter is used where small flow rates are measured very accurately, a longer integration time
can be selected, to obtain better 0-point measurement.
Setting the 0-point is carried out by activating zero adjust. A number of individual 0-point
measurements are made. The 0-point found is shown as zero adjust. The value zero sigma
shows the standard deviation of the individual measurements made. The standard deviation (zero
sigma) must be within a window, which is pre-defined by Fluid Components Intl. This window is
called sigma limit. If the standard deviation is outside the window the following message is shown
in the display: “Zero sigma exceeds sigma limit”. In this case check the installation, ensure that
the pipe is full and that there is absolute 0-flow present. Then repeat the 0-point adjustment. The
new 0-point is automatically stored in the SENSORPROM
®
and will remain at power down
situations.
FlexCor™ Model CMF Series 62
Document 06EN003327 Rev. -
Example; setting the
0-point
Fluid Components Intl
Keypad operationImplementationDisplay
Push for 3 sec.To access thePassword
user password0000
Push onceTo unlock passwordCHANGE
0000
Push onceTo enter 1000 asCHANGE
password1000
Push onceTo lock password and toCONV.SETUP MODE>
enter the menuBasic settings
Push 4 timesTo go to resetReset
mode menumode
Push onceTo enter the resetTotalizer 1 reset
mode menuxxx. G
Push twiceTo go to zeroZero adjust
adjust menu
Push onceTo enter the zeroZero adjust
adjust menuAuto
Push twiceTo go to zeroZero adjust
adjust activation+xxxxxx kg/h
Push onceTo activate the 0-pointZero adjust
adjustment routine+xxxxxx kg/h
Transmitter preformsCounting up from 0
0-point adjustmentto 100%
New 0-point is calculatedZero adjust
and stored in SENSORPROM
Push twice/Transmitter reverts to
hold 3 sec.standard operation
â
+yyyyyy kg/h
Menu detail
Document 06EN003327 Rev. -
63 FlexCor
Commissioning
™ Model CMF Series
Fluid Components Intl
7.5.6 Service mode
Menu detail
Commissioning
All previous settings are re-initialized when service mode is exited using the top up key.
The error system
The error system is divided into an error pending list and a status log list. Time is gained as days,
min. and hours since the error has occurred.
The first 9 pending errors are stored in error pending. When an error is removed it is removed from
error pending.
The last 9 errors are stored in the error log. When an error is removed it is still kept in error log. Errors
in error log is kept in 180 days.
Error pending and error log are accessible when enabled in the operator menu.
FlexCOR™Model CMF Series 64
Document 06EN003327 Rev. -
Fluid Components Intl
Service mode
Menu description
Service mode
The service mode menu can be used to check the flowmeters operation or as diagnostic tools
for trouble shooting.
Flow rate indicates the actual flow rate in %, while tests are being conducted in SERVICE MODE.
Low flow cut-off can be used to supress fluctuating flow transients while experimenting.
Current output can be used to simulate a given flow, temperature, density signal etc. The feature
can be used to check/calibrate connected equipment. Under current output forced a value
between 0 and 24 mA can be set.
If 3 current outputs are used the function can also be used for identification of the individual outputs
by activating these in turn.
Digital output can also be simulated. If the output is selected as limit functions or batch a high or
low state can be simulated. If the digital output is used as flow, density or temperature output, a
signal of 1 to 12,500 Hz can be simulated.
Relay output is used to simulate the relay as on or off.
Special information is used for making diagnosis of the sensor function under the present
operating conditions. This makes it possible to reveal errors caused by errors in the sensor itself
or errors due to application conditions disturbing the sensor function.
Driver signal indicates the current which is necessary to drive the sensor. The driver current is
dependant of sensor size. In the table below the typical values for normal operation conditions are
displayed. The driver current will increase if there is damping in the application, such as air/gas
bubbles, hydraulic generated noise such as flow pulsations or dampning created by mechanical
noise such as vibrations. The driver output circuit can deliver 36 mA maximum.
Pick-up 1/2 amplitude indicates the signal level at the two pick-up’s. In normal operation
conditions the level should be greater than 50 mV. A lower value indicates damping in the system
and can be due to air/gas bubbles in the sensor.
The signal on pick-up 1 and 2 should be within the same value ±20 mV. A bigger difference
indicates noise in the system due to hydraulic or mechanical errous conditions.
Sensor frequency gives the resonant frequency of the sensor in Hz. The frequency is dependent
on dimension as well as the density of the liquid measured, see table below. Values more than
±20 Hz away of the values in the table indicate problems, check cabling, connection and operation
conditions.
Sensor temperature gives the actual temperature of the sensor. The function can be used to see
whether possible errors occur because the sensor is exposed to an excessively high temperature.
Futhermore, errors due to missing/wrong connection of the temperature transmitter between
sensor and converter can be detected.
Sensor zero can be used to check whether the zero point of the meter is satisfactory.
Operating time indicates how many days the signal converter has been in operation.
Commissioning
Document 06EN003327 Rev. -
65 FlexCOR
™ Model CMF Series
Fluid Components Intl
7.5.7 Operator menu
setup
Menu setup
The upper line is always active and can never be deselected.
Commissioning
The two lower lines are for individual operator information. The forward key is used by the operator
to scroll through information.
-A closed lock key in the operator menu setup, means that the menu is enabled when viewing
the operator menu.
-A open lock key symbol, means that the menu is not available in the operator menu.
The middle line can either be used as a heading “Text line” for the lower line, or as a value reading.
A flow reading can be individually selected for each menu.
The lower line may be used for an additional flow reading to the reading already available in the
upper line.
FlexCOR™Model CMF Series 66
Document 06EN003327 Rev. -
7.5.8 Product identity
7.5.9 Change password
Fluid Components Intl
Menu setup
Software version of add-on module is only available if the add-on module has been installed.
7.5.10 Language mode
Commissioning
Document 06EN003327 Rev. -
67 FlexCOR
™ Model CMF Series
Fluid Components Intl
7.5.11HART
communication
(Add-on module)
®
Menu setup
Commissioning
FlexCOR™Model CMF Series 68
Document 06EN003327 Rev. -
7.6.1 Operator menu
Flowrate
Fluid Components Intl
The 1st displayline will always be active and show the value enabled in the operator menu setup.
and 3th display lines are individually set in the operator menu. The page forward key steps
through the enabled settings.
-Mass flow rate
-Volume flow rate
-Density
-Temperature
-Totalizer
-Totalizer reset
-Batch control
-Batch cycle counter
-Batch cycle counter reset.
7.6.2 Totalizer
7.6.3 Batch
A totalizer is reset by pressing the lock key when the corresponding totalizer reset window is open.
A batch can be started, paused or stopped from the operator menu, in addition to the externally
operated batch control. The batch is controlled using the lock and the top up keys.
Commissioning
The lock key:
-Starts the batch
-Holds the batch (pause) when pressed during batching
-Continue the batch when pressed during a pause.
Batch cycle counter
Batch cycle counter reset
Document 06EN003327 Rev. -
The top up key resets a batch completely during a pause.
The accumulated number of performed batches can be viewed when enabled in the operator
menu setup.
The batch cycle counter is reset by pressing the lock key in the “batch cycle cnt reset” menu.
69 FlexCOR
™ Model CMF Series
Fluid Components Intl
7.7.1 Parameters
Commissioning
ParameterFactory settingSettings available
Password
The converter system is equipped with an error and status log system with 4 groups of information.
-Information without a functional error
-Warnings which may cause malfunction in the application. The cause of the error may
disappear on its own
-Permanent errors which may cause malfunction in the application.
-Fatal error which is essential for the operation of the flowmeter
2 menus are available in the service and operator menus for registration of information and errors
-Error pending
-Status log
Error pending
The first 9 standing errors are stored in “error pending”. When an error is removed it clears from
“error pending”.
The acceptance level for “error pending” can be individual configured to a particular application.
The acceptance level is set in the “basic setting” in the setup menu.
Acceptance levels
-Fatal error: Fatal errors are registered as errors
-Permanent errors (Permanent and fatal errors are registered as errors)
-Warning (Default value): Warnings, permanent and fatal errors are registered as errors
The error information is displayed in the title and subtitle line. The title line will show the time since
occurrence of error. The subtitle line will flash between an error text and a remedy text. The error
text will indicate type of error (I, W, P or F), error no. and the error text. The text will inform the operator
of the action to take to remove the error.
Commissioning
Status Log
Like “error pending” except that information, warnings, permanent and fatal errors are always
stored in the “status log”. The “status log” stores the last 9 message during the last 180 days.
Alarm field
The alarm field on the display will always flash with an error pending.
Error output
The digital and relay output can be individually activated by an error (error level). The relay output
is default selected to error level. An output can also be selected to activate on a single error number.
The alarm field, error output and error pending will always operate together.
The analog output will turn to a 1 mA level when in the 4-20 mA mode.
Operator menu
Error pending and status log are as default enabled in the operator menu.
FlexCOR™Model CMF Series 72
Document 06EN003327 Rev. -
Fluid Components Intl
7.8.2 List of error
numbers
Error Error text#CommentOutputsInput
No.Remedy textstatusstatus
1I1 - Power on
OKPower on has activatedActiveActive
2I2 - Add-on Module
AppliedA new module has been added to the systemActiveActive
3I3 - Add-on ModuleAn add-on module is defective or has been removed.
InstallThis can also be an internal add-on moduleActiveActive
4I4 - Param. correctedA less vital parameter in the converter has been
OKreplaced by its default valueActiveActive
20W20 - Totalizer 1During initialization the check of the saved totalizer
Reset manuallyvalue has failed. It is not possible to rely on the
20W20 - Totalizer 2During initialization the check of the saved totalizer
Reset manuallyvalue has failed. It is not possible to rely on the
21W21 - Pulse overflowActual flow is too big compared with pulse width andReduced
Adjust pulse settingsmass/pulsepulse width Active
22W22 - Batch timeoutDuration of batching has exceeded a predefinedBatch out-
Check installationmax. timeput on zero Active
23W23 - Batch overrunBatch quantity has exceeded a predefined maximumBatch out-
Check installationoverrun mass or volumeput on zero Active
24W24 - Batch neg. flow
Check flow directionNegative flow direction during batchActiveActive
30W30 - Flowsaturated
Adjust max. flowFlow is above Q
31W31- Empty pipePipe is emptyZeroActive
32W32 - Temp. to highThe temperature of the fluid has exceeded the max.
Adjust temperaturetemperature rating of the sensor (180 °C)ActiveActive
33W33 - Temp. to lowThe temperature of the fluid has exceeded the min.
Adjust temperaturetemperature rating of the sensor (-50 °C)ActiveActive
34W34 - Zero Adj. failThe zero-point adjustment values are outside the limit
Check flow = zerobecause there is not zero flow in the sensor. Check
35W35 - Current Out 1Current output exceeds 120%. Ensure that the sensor is
Check max. settingscorrectly sized and check max. flow settingActiveActive
36W36 - Freq/Pulse Out1Freq/Pulse output exceeds 120%. Ensure that the sensor
Check max. settingsis correctly sized and check max. flow settingActiveActive
40P40 - SENSORPROM
InsertSENSORPROM® unit not installedActiveActive
41P41 - Parameter rangeA parameter is out of range.
Switch off and onThe error will disappear at the next power-onActiveActive
42P42 - Current outputCurrent loop is disconnected or the loop resistance
Check cablesis too bigActiveActive
43P43 - Internal errorInternal error
Switch off and onActiveActive
49P49 - Protec. viol.Too many errors occured at the same time.
Switch off and onSome errors are not detected correctlyActiveActive
50P50 - Temp. cableError in temperature sensor, check cables and
Check cableconnectorsActiveActive
51P51 - Pick-up 1Pick-up 1 amplitude too low. Check cables or application
Check cable/install.for damping (air/gas in liquid)ActiveActive
52P52 - Pick-up 2Pick-up 2 amplitude too low. Check cables or application
Check cable/install.for damping (air/gas in liquid)ActiveActive
60F60 - CAN comm. errorCAN bus communication error. An add-on module, the
Converter/add-on moduledisplay module or the converter is defectiveZeroInactive
err.It is not possible to rely on the data in SENSORPROM
IDThe SENSORPROM® unit ID do not comply with the
type of product.ZeroInactive
It is not possible to read from the SENSORPROM
®
unit is from another
®
®
Commissioning
Document 06EN003327 Rev. -
Error code level:
W = Warning, F = Fatal, P = Permanent
73 FlexCOR
™ Model CMF Series
Fluid Components Intl
8.Trouble shooting
8.1Transmitter
SymptomOutputErrorCauseRemedy
signalscode
Empty displayMinimum1. Supply voltage1. Check supply voltage
2. Transmitter defective2. Replace Transmitter
No flow signalMinimum1. Current output deselected1. Activate current output
2. Digital output deselected2. Activate digital output
3. Reverse flow direction3. Change direction
W31Measuring pipe emptyEnsure that the measuring
pipe is full
F60Internal errorReplace Transmitter
UndefinedP421. No load on current output1. Check cables/connections
2. Transmitter defective2. Replace Transmitter
P41Initializing errorSwitch off Transmitter, wait
5 seconds and switch on again
Indicates flowUndefinedMeasuring pipe emptySelect empty pipe limit
with no flowEnsure that the measuring
in pipe pipe is full of liquid
UnstableUnstable1. Pulsating flow1. Increase time constant
flow signal
2. Air bubbles in medium2. Ensure medium does not
contain air bubbles
3. Vibrations3. Ensure that the sensor is
mounted on a rigid frame
without vibrations
4. Pump noise4. Ensure that pump
frequency is different from
resonance frequency of
sensor
Measuring error UndefinedFaulty zero-pointMake new zero-point
adjustment
Loss of totalizerOKW20Initializing errorReset totalizer manually
T. s.
data
FlexCOR™ Model CMF Series 74
P40No SENSORPROM® unitInstall SENSORPROM® unit
F61Deficient SENSORPROM
unit
F62Wrong SENSORPROM
unit
F63Defective SENSORPROM
unit
F80-83 Loss of internal dataReplace Instrument
MaximumW30Flow exceeds 120% of Q
W21Pulse overflow
· Mass/pulse too smallChange mass/pulse
· Pulse width too largeChange pulse width
®
Replace SENSORPROM® unit
®
Replace SENSORPROM® unit
®
Replace SENSORPROM® unit
max.
Check Q
(Basic Settings)
max.
Document 06EN003327 Rev. -
Fluid Components Intl
8.2Check for air in the
system
In case of large air collections non-homogenesously distributed in the sensor, the air in the liquid
can disturb the flowmeter and lead to incorrect measurement, whereas homogenesously
distributed air and solids will not disturb measurement.
1) 0-point unstable or exceeding limit (SIGMA LIMIT, refer to reset menu)
2) Measurement of mass flow rate incorrect ?
3) Output signal unstable
4) Error symbol on (type W31, W34, F70, F71)
If one or more of the above symptoms is observed, the cause can be that there is air in the liquid.
Air in the system can be checked through the following tests:
1. Use of Service Mode
Go to the service mode menu and read the values under the menu driver amplitude. Compare
the values with the table listed in section 7.5. If the current is higher than specified it might be
because there are air bubbles in the liquid.
2. Increase of pump pressure
Close the valve, if any, after the sensor. Start the pump and consequently increase the pump
pressure. If the 0-point becomes more stable there are non-homogenseously distributed air
bubbles in the system.
3. Connection of pick-up signals in parallel (only possible for 19“ versions)
The fault can also be found by connecting pick-up 1 and pick-up 2 in parallel. Move the leads on
terminal 85 to terminal 87 on the connection PCB. This will send the same pick-up signal into both
channels in the converter.
If the 0-point becomes more stable by one of the above mentioned examples the conclusion is
that there is air in the system which affects the flowmeter operation.
8.3Check of 0-point
accuracy
Air generation souces
The air can typically be generated by the following causes:
1) Suction pressure of pump too low (pump cavitates)
2) Blocked filter or other obstruction ahead of sensor. This can produce cavitation and air
formation
3) Volatile liquid producing air bubbles at low pressure
4) Pressure in sensor too low because too low a pressure in the piping after the sensor
5) Incorrect location of sensor, refer to Chapter 4 "Installation of sensor".
Check whether the 0-point is within the accuracy specifications given by Fluid Components Intl.
Check as follows:
Go to the basic settings menu, set low flow cut-off to 0%. Go to totalizer 1, select bidirectional mode
and select massflow.
Go back to operator menu, reset the totalizer 1 (if selected in the operator menu, otherwise reset
the totalizer in the reset menu).
Go to totalizer 1 in the operator menu and monitor the value. The totalizer now displays the actual
0-point of the system. Read the totalizer value after 1 min. mutiply the value with 60, this will give
the value xxxx.x kg/h. This can for the sensor dimension in question be compared with the
specifications given under Section 2.3 “Meter uncertainty”, max. zero point error.
Document 06EN003327 Rev. - 75 FlexCOR™ Model CMF Series
T. s.
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