WIKA FLC-406 User manual

Operating Instructions
EN
Battery-powered signal converter for magnetic-inductive flow meters
model FLC-406
Battery-powered signal converter FLC-406

2WIKA Operating Instructions - Battery-powered signal converter FLC-406
81500989 .01 06/2023 EN
EN
© 06/2023 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA® is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!
Keep for later use!
WIKA Operating Instructions - Battery-powered
signal converter for magnetic-inductive flow meters
model FLC-406
Page 3 - 27
Additional languages available on www.wika.com

3WIKA Operating Instructions - Battery-powered signal converter FLC-406
81500989.01 06/2023 EN
EN
Contents
Table of contents
1. Introduction 4
1.1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Manufacturer’s statement . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Packing check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Preliminary notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Product description 5
2.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Measurement characteristics . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Converter 6
3.1 System start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 User interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Display of the totalizer overflow counter . . . . . . . . . . . . . . . . . . . . . 9
3.4 Cellular communication . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 First activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Display test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.7 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4. Battery life 15
5. Auto diagnostics 16
6. PC interface software 17
6.1 Firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Download attempt log . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7. GSM 19
7.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2 GSM connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3 Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.4 Phone number and email settings . . . . . . . . . . . . . . . . . . . . . . . 20
7.5 Scheduling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.6 Data saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.7 Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8. 4-20 mA output module 22
9. Bluetooth - Modbus module 23
9.1 Bluetooth communication . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2 PC connection through software interface . . . . . . . . . . . . . . . . . . . . 23
10.Converter installation 25
10.1 Grounding recommendation . . . . . . . . . . . . . . . . . . . . . . . . . 25
10.2 Separate configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10.3 Remote configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11.Dismounting, return and disposal 27
11.1 Dismounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.2 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
11.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4WIKA Operating Instructions - Battery-powered signal converter FLC-406
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EN
1. Introduction
1. Introduction
1.1 Conventions
In order to draw the attention of all personnel working with
the equipment supplied by Euromisure, the points of particular
importance described in this manual are highlighted with
graphic signs that will make them easily identifiable.
CAUTION / WARNING!
...indicates vital information and points to be
observed. Please refer to the related documents.
NOTE
...indicates information and points of particular
importance to be observed.
1.2 General information
WARNING!
It is very important that all personnel working
with the equipment have read and understood
the instructions and indications provided in this
manual, and that they follow them prior to using
the equipment itself. The manufacturer assumes
no responsibility for the consequences resulting
from improper use by the operators.
The operator shall bear responsibility for the suitability of the
device for the specific purpose.
The warranty will be considered void in cases of improper
installation and use of the devices (systems).
■The manufacturer will not be liable for any kind of damage
resulting from the use of its products, including, but
not limited to those deemed direct, indirect, incidental,
punitive and consequential.The installation, connection,
commissioning and maintenance must be performed by
staff specifically qualified and authorized for that purpose.
■The personnel in charge of the installation must make sure
that the measurement system is properly connected as
per the wiring diagram indicated in this document.
■The manufacturer shall bear no responsibility for any
damages or injuries resulting from any misunderstanding
of this manual. In order to avoid possible accidents to
persons or things caused by incorrect interpretation
of the instructions, the user must not proceed with
operations and/or interventions on the converter if there
are uncertainties or doubts regarding the operation(s)
to be performed. We recommend contacting Assistance
Service for clarifications in this regard for more precise
instructions.
For applications that require high working pressures or
substances that may be hazardous to people, environment,
equipment or anything else if a pipe breakage occurs,
Euromisure recommends to take necessary precautions,
such as adequate positioning and protection or installation of
a guard or safety valve, before installing the converter.
The device contains live electrical components, thus the
installation, monitoring and maintenance must be carried
out by qualified and experienced staff fully aware of all the
necessary precautions. Before opening any inner part,
disconnect the power supply. The flow meter consists of
metal and plastic parts, all of which must be in compliance
with local rules and requirements concerning waste disposal.
1.3 Manufacturer’s statement
■Stresses and loads possibly caused by earthquakes,
traffic, strong winds, fire damages, vibrations and natural
disasters were not taken into account in the phase of
designing.
■Do not install the device so that it acts as a focus for
pipeline stresses.Take into account any external loads in
the device configuration.
■Do not exceed the pressure and/or temperature ratings
indicated on the product lable or in this Operating Manual
during operation.
1.4 Packing check
At the moment of purchase and/or upon the receipt of the
product, the buyer is strongly advised to check the quality
of the packaging, which must be intact without visible dents,
and completely and correctly closed.
When opening the packaging, also check that the product
complies with the information on the packing list in terms of
completeness of components/accessories.
1.5 Preliminary notes
The main parts that make up the magnetic-inductive flow
meter are:
■The sensor - installed in the pipes with the use of flanges
or threaded connections.
■The converter - installed on the sensor (in the Compact
version) or in its proximity (in the Remote version)
connected by two cables.
See the following paragraphs for more detailed indications
on correct use and installation.
1.6 Product identification
Each FLC-406 converter supplied by Euromisure has an
adhesive product lable, on which the following information
are reported.
■Model: sensor and converter model;
■CE conformity mark;
■S/N: serial number that identifies the converter and the
sensor;
■Y: year of construction;
■Size: nominal diameter, standard and nominal pressure
flanges;
■Q3: nominal flow rate and ratio R (Qnom / Qmin);
■Power Supply: supply voltage and/or battery;
■MAP: instrument nominal pressure;

5WIKA Operating Instructions - Battery-powered signal converter FLC-406
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1. Introduction / 2. Product description
2. Product description
2.1 General description
FLC-406 is an electronic converter that, paired with an
Euromisure magnetic-inductive sensor, is able to display
measured flow rate on the LCD screen together with one
of the 4 totalizers available; other information and some basic
settings are directly accessible using the 4-button interface.
Two independent positive and negative pulse outputs allow
connection with any external meter (max 30 V AC or DC / 100
mA).The required power supply is between 12 and 24 V DC
and a battery pack can be connected to attain uninterrupted
service even in the event of power failure. A GSM module
can also be installed to allow remote transmission of
measurements.
NOTE
The data transmitted remotely are not
considered legally relevant and have the sole
purpose of providing a remote viewing.
The integrity and correctness of the data
transmitted are not covered by MID certification.
2.2 Coupling
The maximum diameter of the sensor that can be paired with
the FLC-406 is 600 mm. Backup battery life is affected by the
size of the sensor.The flow meter can be ordered both
in a compact and separate version, with a maximum length
of 30 mt cable.
2.3 Measurement charateristics
■Flow speed range: from 0.015 m/s to 10 m/s.
■Liquid conductivity: > = 20 uS / cm.
■Sampling: 3.125 Hz nominal powered unit (depends on
the diameter); battery mode (low power): from 1/5 Hz at
1/60 Hz (default 1/15 Hz).
2.4 Data storage
All parameters, totalizers and the register are stored in a
non-volatile memory.
2.5 Display
The LCD screen can display an 8 and a 6-digit number plus
different information icons, allowing the user to view different
information and set many parameters.The details of what
can be shown are:
■Instant flow
■Positive totalizer (T+)
■Negative totalizer (T- )
■Partial Positive (P+)
■Partial negative (N-)
■Date and time
■Converter temperature
■Code and value of the corresponding parameter.
2.6 Battery
Lithium batteries are primary energy sources with high
energy content, and are designed to satisfy the highest
possible safety standards. However, they can represent
a potential hazard if subject to improper electrical or
mechanical use. In many cases, this is associated with a
production of excessive heat, in which the increased internal
pressure could damage the cells. The following precautions
should therefore be observed when handling and using
lithium batteries:
■Do not short circuit, charge, overcharge or connect to
incorrect polarity.
■Do not expose the battery to temperatures higher than
those specified.
■Do not crush, puncture or open cells or disassemble
■Press. loss class: max pressure drop class in the sensor;
■Env. class: environmental class;
■EMC class: Electromagnetic Compatibility class;
■T: totalizer that cannot be reset;
■P: resettable partial totalizer.
WARNING!
The product lable must not be removed,
damaged or impaired. It must also be kept clean
from dirt and miscellaneous adhesions.
The information reported represent the only safe
and unambiguous way to recognize the type of
converter in your possession. Product lable

6WIKA Operating Instructions - Battery-powered signal converter FLC-406
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2. Product description / 3. Converter
3. Converter
1Infrared port
2Push buttons 1-4
3Status LED
4Cable glands for pulse and other I/O
1
2
3
4
battery packs.
■Do not weld or braze on the battery body or battery packs.
■Do not expose the contents to water.
Lithium batteries are regulated under the United Nations
Model Regulations on Transport of Dangerous Goods (United
Nations model rules on the transport of dangerous goods),
UN ST/SGAC document. 10-1, latest edition.
The UN document n. 3091 class 9 covers lithium batteries
packed with equipment or within it.The UN document no.
3090 class 9 covers the transport of stand-alone batteries.
The following basic precautions should therefore be followed
when transporting lithium batteries:
■Transport only in special packages with special shipping
labels and documents.
■Use caution when handling, transporting and packing.
■The gross mass of the package must be limited according
to the type of transport. In general, a gross mass of less
than 5 kg is acceptable for all forms of transport.
■The batteries comply with the requirements stated in
"UN Manual of tests and criteria, Part III, subsection
38.3" for transport by air and in accordance with ADR
regulations for transport by truck / ship.
WARNING!
Remove the battery from the transmitter before
sending the flow meter to Euromisure in case
of maintenance work in warranty.
5Sensor signal
6Sensor coils
7Positive pulse output
8Negative pulse output
9SIM gate
10 Grounding connection
11 Battery pack connection
12 LED Power indicator
13 12/24 V input
56
7
8
9
10
11
12
13

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3. Converter
3.1 System start
Once the physical installation of the instrument is complete,
the electronic converter can be switched on by connecting
the 12/24 V power supply and/or by connecting the battery
pack to the connector. Different information is displayed to
the user and a basic configuration is required.
3.1.1 Bootloader version and checksum
The bootloader is a separate software required to download
new firmware to the converter.
3.1.2 Firmware version and checksum
It refers to the main firmware.
3.1.3 Battery replacement notification
If the unit is powered by a new battery pack, it is necessary
to select «YES» by pressing P4 to reset the battery energy
meter. If the unit has just been disconnected and turned back
on with the same battery pack, the correct selection is "NO"
(P1).
3.1.4 Date and time setting
Check and, if necessary, adjust the date and time.
The flashing values can be setted using P3 / P4.
P2 selects the next value in the sequence: year> month>
day> hour> minute.
After selecting the last value, a further press of P2 confirms
the value and go to the next screen.
P1 confirms the current settings and exits.
3.1.5 Main display screen
The converter is now ready.
The positive totalizer appears on the first line and the
instantaneous flow rate on the second.
The current technical unit is shown on the right side.
3.2 User interface
Starting from the main display screen (flow rate and total
positive total), the 4 buttons can be used to perform various
operations. In detail:
- Scroll through the display options of the first and second lines.
- P3: scrolls the instantaneous flow rate, T+ in maximum
resolution, T- in maximum resolution, the time and the board
temperature. See the following sequence.

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3. Converter
- P4: scrolls the totalizers (reduced resolution) and the date
in this order: T +> T-> P +> P-> date.
- P2: scrolls the number of active alarms (first row) / total
alarms (second row) In a normal working condition no alarms
will be signaled.
If one (or more) alarm condition is registered, it will be
scrolled.
- P1: entering the password to access the function selection
(the preset value is 000000).
Use P4/P3 to increase/decrease the current value of the digit.
Go to the next digit with P2. When the last digit is entered, a
further press of P2 will unlock access to the function selection
if the entered password is correct, otherwise the figure will
return to the first one.
- Function selection code: each value corresponds to a menu
or a parameter set function (see Par. 3.7 'Functions').
For selecting the function code use P4/P3; use P2 to enter
the selected code. Pressing P1 returns to the main screen.

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Within a specific function, the functionality of the buttons may
be different; in this example, P4/P3 increases and decreases
the value of the parameter shown on the first line, P2
confirms the value and returns when the function is selected.
P1 stops the operation and returns to the main screen.
3.3 Display of the totalizer overflow counter
If the totalizers reach the display saturation value, they
perform the rollover and continue to count; while one of the
four totalizers is displayed, pressing P2 and P3 together will
show its overflow counter.
3. Converter
3.4 Cellular communication
NOTE
This function is available only if optional cellular
hardware is installed.
Some basic information on cellular activity is shown directly
on the FLC-406 display. See the following details:
Cellular signal level
None / Insufficielt
Low
Ok
Optimal
- new parameter/command received. Press P2 to
confirm.

10 WIKA Operating Instructions - Battery-powered signal converter FLC-406
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3. Converter
3.5 First activation
Depending on the instrument configuration, the converter can
be shipped with the battery pack disconnected or already
connected.
■If disconnected: the unit is automatically operational once
connected (see page 11).
■If already connected: the unit is hibernated and must be
activated.
To activate a hibernated unit, the P2 and P3 keys must be
kept pressed for 5 seconds.
First activation
3.6 Display test
The integrity of the LCD display can be checked by pressing
P1 and P4 together from the current measurement screen;
all segments of the display will be activated and deleted in
sequence. In addition the version and revision, bootloader
revision (VV.RR b) / firmware version and revision (VV.RR f)
and the corresponding checksum are displayed.
The previous measurement screen will be restored at the end
of this operation.

11WIKA Operating Instructions - Battery-powered signal converter FLC-406
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3.7 Functions
A list of all the functions available by the user interface is shown below.
FUNC DESCRIPTION ACTION P1 ACTION P2 ACTION
P3
ACTION P4 MIN
VALUE
MAX
VALUE
NOTES
01 Instant flowrate unit Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 1 6 1=m;
2=m3;
3=L;
4=ML;
5 =ft3;
6=gal;
7=BBL.
Setting 1 (meters) the time
base is automatically set
to 1 s.
02 Time base unit Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 1 4 1=s;
2=m;
3=h;
4=d
03 Counter unit Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 1 4 1=m3;
2=L;
3=ML;
4=gal;
5=BBL;
6=Aft;
7=Ain
04 Zero calibration Back to main
screen
Cancel
operation
+ return to
function
selection
No action Start calibration - - The display shows the
time left to complete the
operation. At the end of
the operation, the main
screen is displayed.
05 Ka factor Back to main
screen
Return to
function
selection
Back
to main
screen
Back to main
screen
-10.0 10.0
06 Sensor diameter Back to main
screen
Return to
function
selection
Back
to main
screen
Back to main
screen
1 4000 The parameter is
electrically blocked; read
only.
07 Pulse volume Back to main
screen
Return to
function
selection
Back
to main
screen
Back to main
screen
1 10000 The parameter is
electrically blocked; read
only.
08 Pulse technical unit Back to main
screen
Return to
function
selection
Back
to main
screen
Back to main
screen
1 4 1=mL;
2=L;
3=m3;
4=gal
09 Pulse duration Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 5 500 Expressed in ms
(seconds/1000).
10 Measurement
frequency
Back to main
screen
Confirm +
return to
function
selection.
Decrease
value
Increase value 5 60 Interval between two
measurements [s].
11 Date and time Back to the
previous field;
if in years
setting field,
back to main
screen.
Forward to
the next field;
if in minutes
setting field,
back to main
screen.
Decrease
value
Increase value 2015/01/01
00:00
2099/31/12
23:59
12 Damping Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 2 100 Number of samples
averaged.
13 Bypass Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 2 95 Bypass filter threshold, %
of full scale.
3. Converter

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FUNC DESCRIPTION ACTION P1 ACTION P2 ACTION
P3
ACTION P4 MIN
VALUE
MAX
VALUE
NOTES
14 Peak cut Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 1 90 Pulse suppression filter
threshold,% of full scale.
15 Cut off Back to main
screen
Confirm +
return to
function
selection
Back
to main
screen
Back to main
screen
0.00 10.00 [m/s] - the parameter
is electrically locked.
16 Flowrate display
digits
Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 0 4 Number of decimal digits
of the instant flow shown
on the display.
17 Totalizers display
digits
Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 0 4 Number of decimal places
of the totalizers
18 Empty pipe
threshold
Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 200 5000
19 Full scale Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 1.0 10.0 Full scale expressed in
m/s (not connected to the
diameter value).
20 Partial positive
totalizer reset
Back to main
screen
Return to
function
selection
No action Partial positive
tot. reset (must
be hold pressed
for 5 s).
No action No action The display shows the
positive partial totalizer.
21 Partial negative
totalizer reset
Back to main
screen
Return to
function
selection
No action Partial negative
tot. reset
(Must be hold
pressed for 5 s)
No action No action The display shows the
negative partial totalizer.
22 Firmware version Back to main
screen
Return to
function
selection
No action No action - - Show the current version.
Firmware revision.
23 Firmware
checksum
Back to main
screen
Return to
function
selection
No action No action - - Shows the installed
firmware CRC32.
24 Empty pipe
detection mode
Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 0 3 0: Disabled;
1: Enabled on the fourth
electrode;
2: Enabled on the
measuring electrodes;
3: Enabled on both
25 Password setup Back to main
screen
Forward to
the next digit,
confirm and
return
Decrease
value
Increase value 000000 999999
26 Bootloader version Back to main
screen
Return to
function
selection
No action No action - - Shows the current version.
Revision of the bootloader.
27 Bootloader
checksum
Back to main
screen
Return to
function
selection
No action No action - - Show the current
bootloader CRC32
28 Line frequency Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 0 1 Set the frequency of the
power supply
■0: 50 Hz
■1: 60 Hz
29 Load user
parameters
Back to main
screen
Return to
function
selection
Decrease
value
(Long press)
load user
parameters
- - Replaces the parameters
of the instrument with
those saved as user copy.
30 Save user
parameters
Back to main
screen
Return to
function
selection
Decrease
value
(Long press)
save user
parameters
- - Save the instrument
parameters as a user
copy.
3. Converter

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FUNC DESCRIPTION ACTION P1 ACTION P2 ACTION
P3
ACTION P4 MIN
VALUE
MAX
VALUE
NOTES
31 Load factory
parameters
Back to main
screen
Return to
function
selection
Decrease
value
(Long press)
load factory
parameters
- - It replaces the parameters
of the instrument with the
factory ones.
32 Damping in low
power mode
Back to main
screen
Confirm +
return to
function
selection
Decrease
value
Increase value 1 100 Number of samples to be
averaged over.
33 Auto power off Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 7 Shutdown time
■0=20 s;
■1=1 min;
■2=3.
34 Sensor offset Back to main
screen
Return to
function
selection
No action No action -99999999 99999999 It shows the offset of the
paired sensor.
35 Log of firmware
download attempts
Back to main
screen
Return to
function
selection
Show
previous
record
Show next
record
Oldest
registry (0)
Last registry
available
It shows log of firmware
download attempts.
36 Service code Not
accessible
Not
accessible
Not
accessible
Not accessible Not
accessible
Not
accessible
Function not accessible;
an attempt to access will
show "denied" on the
screen.
37 Negative
pulse output
configuration
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 3 0: Negative flow;
1: Positive Flow;
2: Net Positive flow;
3: Error report.
38 Selection of the
measurement to
map on 4-20 mA
output
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 4 0: Flow;
1: Full scale percent;
2: Pressure;
3: Temperature T1
4: Temperature T2
39 Measurement
value to be
mapped on 4 mA
output
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1000 Measurement value to be
mapped on 4mA output
(enabled only with 4-20 mA
card).
40 Measurement
value to be
mapped on 20mA
output
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1000 Measurement value to be
mapped on 20 mA output
(enabled only with 4-20 mA
card)
41 Flow send Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1 0: signals error in case of
reverse flow
42 Flow simulation Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1 0: flow simulation disabled
1: flow simulation enabled
(enabled only with 4-20 mA
card)..
43 Flow simulation
value
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1000 Value of the flow to be
simulated (enabled only
with 4-20 mA card).
44 Bluetooth access
interval
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 9 0: Always off;
1: On every 30 s;
2: On every 60 s;
3: On every 2 min;
4: On every 5 min;
5: On every 10 min;
6: On every 15 min;
7: On every 30 min;
8: On every 60 min;
9: Always on
(Enabled only with
Bluetooth-Modbus card).
3. Converter

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3. Converter
FUNC DESCRIPTION ACTION P1 ACTION P2 ACTION
P3
ACTION P4 MIN
VALUE
MAX
VALUE
NOTES
45 Bluetooth access
duration
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 3 30 Duration in seconds of the
Bluetooth access
(enabled only with
Bluetooth-Modbus card
installed).
46 MODBUS access
interval
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 12 0: Always off;
1: On every 5 s;
2: On every 10 s;
3: On every 15 s;
4: On every 30 s;
5: On every 1 min;
6: On every 2 min;
7: On every 5 min;
8: On every 10 min;
9: On every 15 min;
10: On every 30 min;
11: On every 60 min;
12: Always on
(enabled only with
Bluetooth-Modbus card
installed).
47 MODBUS access
duration
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 1 30 Duration in seconds of the
Modbus access
(enabled only with
Bluetooth-Modbus card
installed).
48 MODBUS baud
rate
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 6 Baud rate Modbus
0: 2400;
1: 4800;
2: 9600;
3: 19200;
4: 38400;
5: 57600;
6: 115200 (default)
(enabled only with
Bluetooth-Modbus card
installed).
49 Number of
MODBUS bits
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1 Number of modbus bits
0: 8 data bits
1: 7 data bits
50 MODBUS parity Back to main
screen
Return to
function
selectio0n
Decrease
value
Increase value 0 2 MODBUS parity
0: None
1: Odd
51 MODBUS stop bit Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 1 MODBUS stopbit
0: 1 bit stop
1: 2 bit stop
(enabled only with
Bluetooth-Modbus card
installed).
52 MODBUS address Back to main
screen
Return to
function
selection
Decrease
value
Increase value 0 255 MODBUS address
(enabled only with
Bluetooth-Modbus card
installed).
53 MODBUS
byte-order
Back to main
screen
Return to
function
selection
Decrease
value
Increase value 1 5 MODBUS byte order
0: little endian
1: big endian
2: little endian byte swap.
■= editable
■= read only

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4. Battery life
4. Battery life
The converter is supported by an optional lithium battery
pack and can operate for over 10 years in battery mode
(depending on the configuration and working conditions).
The residual life comes estimated by calculating the use of
energy for the duration of the tool, so when the battery is
replaced it is necessary to reset the battery usage counter.
When switched on, the unit automatically takes the user to
a screen selection (see SYSTEM START). Frequent unit
waking up or entering very long shutdown times (feature 33
in the previous table) can shorten the expected battery life.
Battery levels
Battery charged
25% or lless
10% or less
Expected battery life (years) according to sensor diameter and sampling rate

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5. Auto diagnostics
5. Auto diagnostics
During the measurement process, the FLC-406 detects automatically if error condition occurs and possibly stops the operation
by reporting an alarm indication on the display. The following table describes the various conditions of alarm and converter
behavior.
Detected anomaly Possible cause Converter behavior Icon displayed and
corresponding error code
Excitation failure. ■Damaged sensor cables;
■Sensor disconnected;
■Damaged sensor coils.
The measurement is forced to 0 and
the error condition is displayed and
recorded.
101
Empty pipe detected on the fourth
electrode.
■The sensor is not completely full
of liquid;
■An air intake causes turbulence;
■Sensor disconnected;
■Damaged sensor cables;
■Low liquid conductivity.
The measurement is forced to 0 and
the error condition is displayed and
recorded.
To save battery, the excitation
of the coils is stopped until the error
condition is overcome.
102
Empty pipe detected / invalid
measurement on the measuring
electrodes.
■The sensor is at least half empty;
■Air drawn in due to turbulence;
■Sensor disconnected;
■Damaged sensor cables;
■Low liquid conductivity;
■An electrical leak on the process
influences the measurement;
■A high source of electromagnetic
interference influences the
measurement.
The measurement is forced to 0 and
the error condition is displayed and
recorded.
To save battery, the excitation of
the coils is stopped until the error
condition is overcome.
103
The temperature exceeds the
converter nominal operating range.
■The surrounding temperature is
above the working range;
■The converter is installed with
direct sunlight exposure.
The error condition is displayed.
201
Wet electronic board. The cap or a cable gland has not
been closed properly causing water
or moisture condensation in the
converter housing
The error condition is displayed.
202
Supply voltage out of limit. ■The battery is damaged or
discharged;
■An incorrect power source is
connected to the converter.
The error condition is displayed.
301
Pulse overlap Pulse settings are not compatible
with the measured process.
The error condition is displayed.
401
Communication error with 4-20 mA
board
■Current loop interrupted;
■Problems on connection cable
between 4-20 mA board and
measurement board;
■4-20 mA board malfunction
The error condition is displayed.
501
Incorrect Bluetooth parameters
warning.
Bluetooth power-on interval too
short, battery life will be reduced
considerably.
601
The firmware checksum differs from
the expected value.
The memory of the internal program
has changed.
The error condition is displayed and
the program execution stopped.
801

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Detected anomaly Possible cause Converter behavior Icon displayed and
corresponding error code
The parameters checksum differs
from the expected value.
Parameter data is corrupt. The error condition is displayed and
the program execution stopped.
802
A watchdog reset has been
performed
A disturbance has resulted in
unmanaged behavior in the regular
execution of the software.
The error condition is displayed and
the program execution stopped.
901
5. Auto diagnostics / 6. PC interface software
6. PC interface software
The supplied PC communication software is based on a
proprietary protocol; its use is possible with the interface
IrCOMM (USB to infrared adapter) and allows to:
■View live measurements in real time;
■View all parameters;
■Modify the editable parameters;
■Download the internal data logger;
■Update the firmware.
Main Dashboard - real live values and basic information
Graphic - Recording of live measurements/Visualization
Data LOG - Internal process log download and CSV file export
Configuration - Parameters setting & configuration

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6. PC interface software
Access the download attempt log from the main display.
Screen 1: displays the record number and corresponding download ID.
Screen 2: displays the date (YYYY.MM.DD) and the time the attempt was
made.
Screen 3: shows if the attempt was successful (SUCCESS) or not (FAIL).
The last completed step is also reported.
Screen 4: shows the checksum and version of the firmware downloaded. If
the operation was not successful, FFFFFFFF can be shown as a checksum.
6.1 Firmware update
To update a newer firmware release, select the firmware
".hex" file and press "Download new firmware to converter".
The progress of the firmware download is displayed while
the instrument shows the sequence of internal operations.
The previously installed firmware is saved in backup on a
dedicated memory area, therefore in case of error during
unloading, the converter will automatically restore the normal
functionality. During the operation the red LED turns on lights
up when the FLASH memory is cleared or written. At the end
of the process, the unit will restart automatically.
Firmware updating steps
0 Firmware check installed
1 Awaiting download request
2 Download request received
3 Clear download memory
4 Firmware download
5 Checking the downloaded firmware
6 Checking the downloaded firmware
7 Firmware update installed
8 Backup of the new firmware installed
9 Updating OK
10 Firmware reset installed (only during startup)
11 Firmware reset installed (after error during update)
6.2 Download attempt log
Any attempt to download the firmware is recorded in the
internal memory. The log can store over 500 records: once
completed, further downloads are not allowed. The download
attempt log can be viewed on the converter display function
35 or by pressing P1 and P3 together on the main display
screen. Each log information scrolls automatically in 4
screens. P3 and P4 can be pressed at any time to go to the
previous or next saved recording.

19WIKA Operating Instructions - Battery-powered signal converter FLC-406
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6. PC interface software / 7. GSM
«Safe EEPROM secured»: the calibration and measurement parameters
saved in the EEPROM memory are protected from writing attempts.
7. GSM
The GSM module is an expansion of the FLC-406 electronic
converter, which makes possible:
■Remote transmission of information available in the
measuring instrument;
■Data reception for remote management of the instrument
itself;
■Modification of some parameters;
■Converter FW update.
7.1 Main features
7.1.1 Fully autonomous operation
The module works as a completely autonomous unit,
similar to an external GSM data logger: at regular intervals
(minimum 60 s) it acquires the measurement data from the
FLC-406 and saves them in its internal Flash memory.
7.1.2 Battery powered
Power is supplied via a battery pack with 2 batteries.
Nominal battery life 5 years, with guaranteed minimum of
1 year regardless of module configuration.
7.1.3 Worldwide compatibility
The internal modem (Telit HE910-GL) was chosen to
guarantee worldwide operation at least for bands B5,
B8, B2, B1, B4; Frequencies [MHz] 800/850, 900, AWS
1700.1900.2100. Europe, Australia, New Zealand, Brazil,
North America.
7.1.4 Data sending mode
Sending measurement data includes the following modes;
SMS, E-mail; Email with attachment (containing the latest log
lines).
7.1.5 Data transmission interval
The programmable data transmission interval is independent
for each mode. The minimum interval is every hour. In case of
error, the management of sending and attempts is completely
delegated to the module.
7.1.6 Parameter configuration
The operating parameters are configured via the FLC-406
optical interface and via the MC User Interface software.
7.2 GSM connection
The software starts communication with the GSM module
and downloads all its parameters by pressing the button .
6.2.1 Additional information displayed
The checksum of the firmware or EEPROM data (parameters
and / or totalizers)

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7. GSM
7.3 Device settings
All communication parameters are set up by pressing the
button .
Press the button to save the data on the form.
NOTE
Without this operation, no data on the form will
change.
7.4 Phone number and email settings
Up to 5 mobile numbers / email addresses can be set.