Fluidwell F190-A-OS User manual

F190-A-OS
MULTI-PURPOSE MONITOR
with high / low alarms, analog and pulse outputs
Signal input sensor: (0)4-20 mA
Signal outputs: (0)4-20 mA ref. sensor signal or percentage
Alarm outputs: four level alarms
Options: Intrinsically safe, Modbus communication, and backlight
F-Series - Field mounted indicators for safe and hazardous areas.
More info: www.fluidwell.com/fseries

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SAFETY INSTRUCTIONS
•Any responsibility is lapsed if the instructions and procedures as described in this manual
are not followed.
•LIFE SUPPORT APPLICATIONS: The F190-A-OS is not designed for use in life support
appliances, devices, or systems where malfunction of the product can reasonably be
expected to result in a personal injury. Customers using or selling these products for use
in such applications do so at their own risk and agree to fully indemnify the manufacturer
and supplier for any damages resulting from such improper use or sale.
•Electro static discharge does inflict irreparable damage to electronics! Before installing or
opening the F190-A-OS, the installer has to discharge himself by touching a well-
grounded object.
•The F190-A-OS must be installed in accordance with the EMC guidelines (Electro
Magnetic Compatibility).
•Connect a proper grounding to the metal enclosure as indicated if the F190-A-OS has an
incoming power or signal line which carries a hazardous live voltage.
The Protective Earth (PE) wire may never be disconnected or removed.
•Intrinsically Safe applications: follow the instructions as mentioned in Chapter 5.
Certificates and related documents are available on our website or from your distributor.
DISPOSAL OF ELECTRONIC WASTE
•The WEEE Directive requires the recycling of disposed electrical and electronic
equipment in the European Union. When the WEEE Directive does not apply to your
region, we support its policy and ask you to be aware on how to dispose of this product.
•The crossed out wheelie bin symbol as illustrated and found on our products tells that
this product shall not be disposed of into the general waste system or into a landfill.
•At the end of its life, equipment shall be disposed of according to the local regulations
regarding waste of the electrical and the electronic equipment.
•
helpdesk for information on the product disposal.
SAFETY RULES AND PRECAUTIONARY MEASURES
•The manufacturer accepts no responsibility whatsoever if the following safety rules and
precautions, instructions and the procedures as described in this manual are not
followed.
•Modifications of the F190-A-OS implemented without preceding written consent from the
manufacturer, will result in the immediate termination of product liability and warranty
period.
•Mounting, electrical installation, start-up and maintenance of this device may only be
carried out by trained persons authorized by the operator of the facility. Persons must
read and understand this manual before carrying out its instructions.
•This device may only be operated by persons who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
•Check the mains voltage and information on the manufacturer's plate before installing the
F190-A-OS.
•Check all connections, settings and technical specifications of the various peripheral
devices with the F190-A-OS supplied.
•Open the enclosure only if all leads are free of potential.
•Never touch the electronic components (ESD sensitivity).
•Never expose the system to heavier conditions than allowed according to the
classification of the enclosure (see manufacture's plate and chapter 4.2.).
•If the operator detects errors or dangers, or disagrees with the safety precautions taken,
he should inform the owner or principal responsible.
•The local labor and safety laws and regulations must be adhered to.

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ABOUT THE MANUAL
This manual is divided into two main sections:
▪The daily use of the unit is described in chapter 2 "Operation". These instructions are meant for
users.
▪The following chapters and appendices are exclusively meant for electricians/technicians. These
provide a detailed description of all software settings and hardware installation guidance.
This manual describes the standard unit as well as the available options. For additional information,
please contact your supplier.
A hazardous situation may occur if the F190-A-OS is not used for the purpose it was
designed for or is used incorrectly. Please carefully note the information in this manual
indicated by the pictograms:
A "warning !" indicates actions or procedures which, if not performed correctly, may lead to
personal injury, a safety hazard or damage of the F190-A-OS or connected instruments.
A "caution !" indicates actions or procedures which, if not performed correctly, may lead to
personal injury or incorrect functioning of the F190-A-OS or connected instruments.
A "note !" indicates actions or procedures which, if not performed correctly, may indirectly
affect operation or may lead to an instrument response which is not planned.
WARRANTY AND TECHNICAL SUPPORT
For warranty and technical support for your products, please contact your supplier, visit our internet
site www.fluidwell.com or contact us at sup[email protected].
Hardware version : 03.01.xx
Software version : 03.05.xx
Manual : FW_F190-A-OS_M_v2201-01_EN.docx
© Copyright 2023 : Fluidwell B.V. - the Netherlands
Information in this manual is subject to change without prior notice. The
manufacturer is not responsible for mistakes in this material or for incidental
damage caused as a direct or indirect result of the delivery, performance or
use of this material.
© All rights reserved. No parts of this publication may be reproduced or used
in any form or by any means without written permission of your supplier.

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TABLE OF CONTENTS
SAFETY INSTRUCTIONS.................................................................................................................... 2
DISPOSAL OF ELECTRONIC WASTE............................................................................................... 2
SAFETY RULES AND PRECAUTIONARY MEASURES ................................................................... 2
ABOUT THE MANUAL ........................................................................................................................ 3
WARRANTY AND TECHNICAL SUPPORT........................................................................................ 3
TABLE OF CONTENTS....................................................................................................................... 4
1INTRODUCTION........................................................................................................................ 6
1.1 System description........................................................................................................... 6
2OPERATIONAL ......................................................................................................................... 8
2.1 General information.......................................................................................................... 8
2.2 Control panel.................................................................................................................... 8
2.3 Operator information and functions.................................................................................. 8
3CONFIGURATION ................................................................................................................... 10
3.1 Introduction..................................................................................................................... 10
3.2 Programming SETUP-level............................................................................................ 10
3.2.1 Entering SETUP-level........................................................................................10
3.2.2 Navigating through SETUP-level.......................................................................10
3.2.3 Programming sequence.....................................................................................11
3.2.4 Returning to OPERATOR-level.......................................................................... 12
3.3 Configuration settings .................................................................................................... 12
3.3.1 Setup menu - Settings........................................................................................ 12
3.3.2 Menu 1 Value.................................................................................................. 13
3.3.3 Menu 2 Alarm.................................................................................................. 14
3.3.4 Menu 3 Hysteresis .......................................................................................... 15
3.3.5 Menu 4 - Display................................................................................................ 17
3.3.6 Menu 5 - Power management............................................................................ 17
3.3.7 Menu 6 - Sensor.................................................................................................17
3.3.8 Menu 7 - Analog output...................................................................................... 19
3.3.9 Menu 8 - Relays.................................................................................................20
3.3.10 Menu 9 - Communication (option)....................................................................21
3.3.11 Menu A - Others............................................................................................... 21
4INSTALLATION ....................................................................................................................... 22
4.1 General directions..........................................................................................................22
4.2 Installation - surrounding conditions .............................................................................. 22
4.3 Handling the F-Series Enclosure ................................................................................... 23
4.3.1 Identification.......................................................................................................23
4.3.2 Opening / removing the cover............................................................................ 24
4.3.3 Closing / replacing the cover.............................................................................. 24
4.4 Mechanical installation................................................................................................... 25
4.4.1 Dimensions Aluminum and stainless steel enclosures................................... 25
4.4.2 Dimensions Non-metallic enclosures..............................................................26
4.4.3 Mounting ............................................................................................................ 27
4.5 Electrical installation....................................................................................................... 28
4.5.1 Electrical safety..................................................................................................28
4.5.2 Protective Earth (PE) connections.....................................................................28
4.5.3 Field wiring connections..................................................................................... 29
4.5.4 Power supply wiring ...........................................................................................29
4.5.5 Sensor supply .................................................................................................... 30
4.6 Terminal connectors safe area applications Type XX / XF......................................... 31
4.6.1 Terminal 03-05: Sensor input.............................................................................31
4.6.2 Terminal 08-09: Analog output...........................................................................32
4.6.3 Terminal 10-17: Alarm output R1 to R4............................................................. 32
4.6.4 Terminal 26-31: Type CB / CH / CI - Communication (option) .........................33
5MAINTENANCE....................................................................................................................... 34
5.1 General directions..........................................................................................................34
5.2 Instructions for repair ..................................................................................................... 34
APPENDIX A TECHNICAL SPECIFICATION ................................................................................ 35
APPENDIX B PROBLEM SOLVING............................................................................................... 38

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APPENDIX C COMMUNICATION VARIABLES .............................................................................39
APPENDIX D DECLARATION OF CONFORMITY .........................................................................44
INDEX OF THIS MANUAL..................................................................................................................45
LIST OF FIGURES IN THIS MANUAL...............................................................................................45

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1 INTRODUCTION
1.1 SYSTEM DESCRIPTION
Functions and features
The level monitor model F190-A-OS is a microprocessor driven instrument designed to display and
monitor any process sensor signal. It can generate up to four alarms and output analog signal
related to the signal.
This product has been designed with a focus on:
▪several mounting possibilities with aluminum or GRP enclosures for harsh industrial
surroundings
▪ability to process all types of sensor signals
▪transmitting possibilities with analog and communication outputs.
Sensor input
One sensor with a (0)4-20mA signal output can be connected to the F190-A-OS. To power the
sensor, several options are available.
Standard outputs
▪Max. four configurable alarm outputs: high-, low-, high-high- or low-low-signal alarm.
▪Linear 4-20mA analog output to represent the actual sensor output or percentage. The signal
limits can be tuned.
Fig. 1: Typical application

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Configuration of the unit
The F190-A-OS is designed for use in many types of applications. For that reason, a setup menu is
available to program the F190-A-OS according to your specific requirements.
The setup includes several important features, such as span, engineering units, signal selection,
power management etc. All settings are stored in a non-volatile memory and therefore saved in the
event of a power failure.
Display information
The unit has a LCD with (optional) backlight to show the process information, status and alarm
messages. The display refresh rate is programmed in the setup menu.
At a key press, the display refresh rate will switch to FAST for 30 seconds. When 'OFF' is selected,
the display goes off after 30 seconds after the last key press. The display temporarily comes on after
a key press.
Options
The following options are available: full Modbus communication RS232/485/TTL, panel mount, wall
mount and weather proof enclosures, flame proof enclosure and LED backlight.

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2 OPERATIONAL
2.1 GENERAL INFORMATION
This chapter describes the daily use of the F190-A-OS. This instruction is meant for users /
operators.
•This device may only be operated by persons who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
•Take careful notice of the "Safety rules, instructions and precautionary measures" in the
front of this manual.
2.2 CONTROL PANEL
The control panel has three keys. The following keys are available:
Fig. 2: Control panel.
Functions of the keys
PROG-key
This key is used to program and save new values or settings.
The PROG-key is also used to gain access to SETUP-level; please read chapter 3.
SELECT-key
This key is used to SELECT the displayed information, like level and height.
CLEAR-key
This key is used to CLEAR values.
2.3 OPERATOR INFORMATION AND FUNCTIONS
In general, the F190-A-OS will always function at Operator level. The information displayed is
dependent upon the SETUP-settings. The signal from the connected sensor is processed by the
F190-A-OS in the background, whichever screen refresh rate setting is chosen. After pressing a key,
the display will be updated very quickly during a 30 second period, after which it will slow-down
again.
Fig. 3: Example of display information during process.
For the Operator, the following functions are available:
▪Display process value / percentage
This is the main display information of the F190-A-OS. After the selection of any other
information, it will always return to this main display automatically. The displayed information
depends on the configuration setting. When "-------" is shown, the value is too high to be
displayed.
The arrows indicate the increase/decrease of the level trend.

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▪How to program the alarm thresholds
The F190-A-OS can give an alarm message on the display. When set to on, at the same time,
the digital outputs can give a signal for processing by an external device. Note that it is also
possible to set or change the alarm thresholds from the setup menu.
This procedure is applicable to all the alarm thresholds. Only the procedure for ALARM LL is
required submenu.
Action
Result
Remark
1
From any operator page,
press the SELECT/key, to
find the submenu: ALARM LL.
•The submenu shows:
ALARM LL.
-
2
Press the PROG/ENTER key
to access the submenu:
ALARM LL.
•The PROGRAM indicator
blinks continuously.
If you wait too long, the
program mode goes off and
changes are not saved.
3
Use the SELECT/key to
increase the digit. Use the
CLEAR/key to go to the
next number.
•The PROGRAM indicator
blinks continuously.
•You can select the
required alarm threshold.
The 0 (zero) in front of the
number will not show when
the setting is saved.
The alarm is only shown on
the display. For an alarm on
an external device, set the
function of the digital output.
4
Press the PROG/ENTER key
to confirm the selection.
•The PROGRAM indicator
goes off.
•The selection is saved.
•The display shows the
selected alarm threshold.
If you do not press the
PROG/ENTER key to
confirm, your selection is not
saved.
▪Process alarm
When the process signal is outside the allowed range, an alarm message will be displayed at the
bottom line of the display indicating the type of alarm: LO-LO ALARM, LO ALARM,
HI ALARM or HI-HI ALARM.
The alarm is terminated automatically as soon as the signal is in its range again. Due to the setup
configuration it might be that the process is outside its range without an immediate alarm.
▪Clear Alarm outputs
The Operator has the possibility to clear the alarm outputs, e.g. to turn off an alarm bell. This
feature can be enabled individually for each output in SETUP-menu 8. When the clear action is
performed, all enabled outputs that are connected to an active alarm status will be cleared.
To do so, press the CLEAR/key at operator level when the actual measurement value is
shown. The text "CLEAR OUTPUTS" is shown and pressing the CLEAR/key again will clear
the outputs. To avoid a reset at this stage, press any other key or wait for 20 seconds.
Be aware that only the output(s) is cleared; the alarm itself remains available and visible
on the display. When the same or an additional alarm (re-)occurs, the output(s) is
triggered again!
▪Alarm
When the alarm indicator is shown, refer to Appendix B: Problem Solving.

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3 CONFIGURATION
3.1 INTRODUCTION
This and the following chapters are exclusively meant for electricians and non-operators. In these,
an extensive description of all software settings and hardware connections are provided.
•Mounting, electrical installation, start-up and maintenance of this device may only be
carried out by trained persons authorized by the operator of the facility. Persons must
read and understand this manual before carrying out its instructions.
•This device may only be operated by persons who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
•Make sure, the measuring system is correctly wired up according to the wiring diagrams.
Protection against accidental contact is no longer assured when the enclosure cover is
removed or the panel cabinet has been opened (danger from electrical shock). The
enclosure may only be opened by trained persons authorized by the operator of the
facility.
•Take careful notice of the "Safety rules, instructions and precautionary measures" in the
front of this manual.
3.2 PROGRAMMING SETUP-LEVEL
Changing the settings of the F190-A-OS may have an influence on the current operation of
the device, even when SETUP-level is still active.
Make sure that the unit is not being used for any application when altering the settings.
3.2.1 ENTERING SETUP-LEVEL
Configuration of the F190-A-OS is done at SETUP-level, which can be reached at all times while the
F190-A-OS remains fully operational. At SETUP-level the display will deactivate the RUN indicator
and activate the SETUP indicator.
Use the control panel to access SETUP-level
PROG-key
To enter SETUP-level, press the PROG-key for 7 seconds at OPERATOR-level.
During this time, the symbols  will be displayed.
When SETUP-level is entered, a password might be required to continue. You can
enter the password by following the procedure for programming values as described in
the following paragraphs.
A password may be required to enter SETUP.
Without this password access to SETUP is denied.
3.2.2 NAVIGATING THROUGH SETUP-LEVEL
Each function has a unique menu-number, which is displayed below the SETUP indicator at the
bottom of the display. The menu-number is a combination of two figures, e.g. 1.2. The first number
indicates the function-group and the second number indicates the function. Additionally, each
function and function-group is expressed with a keyword.
Fig. 4: SETUP matrix structure
1.1
1.2
2.1.
2.1
1.3
2.2
3.1
3.
FUNCTION GROUP
FUNCTION
FW-4100-000001-001-EN

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Use the control panel to navigate through SETUP-level
PROG-key
When a function is selected, this key is used to start the programming sequence.
When only a function group is selected (and no function), this key is used to scroll back
a function group (e.g. 3 →2 →1 →3).
SELECT-key
This key is used to select the next function in the list (e.g. 1 →1.1 →1.2 →1). When
the top of the list is reached, it will wrap around and return to the function group
selection.
CLEAR-key
This key is used to select the previous function in the list (e.g. 1.2 →1.1 →1 →2).
When the bottom of the list is reached, it will return to the function group selection.
When only a function group is selected (and no function), this key is used to scroll to
the next function group. (e.g. 1 →2 →3 →1).
3.2.3 PROGRAMMING SEQUENCE
After selecting a function at SETUP-level, a new value can be programmed using the control panel.
A function either contains a value (a number with optionally a decimal point, e.g. 123.45) or a list
with items (e.g. Disable Enable).
For each function that needs to change, navigate to that function and follow the steps indicated
below. During the programming sequence, the display will deactivate the SETUP indicator and
activate the PROGRAM indicator.
When programming new values, alterations will only be set after the PROG-key has been
pressed to confirm the new value! (STEP 3)
Step 1: Starting the programming sequence
PROG-key
When a function is selected at SETUP-level, this key is used to start the programming
sequence.
Step 2a: Changing a value
SELECT-key
This key is used to increment the selected digit.
When the entered value is out of range, the increase sign or decrease-sign will
be displayed while you are programming. If this value is confirmed by pressing the
PROG-key, the value will be brought within a valid range automatically.
CLEAR-key
This key is used to select the next digit. If a decimal point can be set, this will be
included in the sequence as well (e.g. [decimal point] →digit 1 →digit 2→digit 3 →
[decimal point].
SELECT-key + CLEAR-key
The combination of the SELECT-key and CLEAR-key is used to select a negative
value. When a value can also be entered as a negative number, pressing the SELECT-
key and CLEAR-
Step 2b: Changing the selected item in a list
SELECT-key
This key is used to select the next item in the list (e.g. Disable →Enable).
At the end of the list, the selection will wrap around to the first selection.
CLEAR-key
This key is used to select the previous item in the list (e.g. Enable →Disable ).
At the bottom of the list, the selection will wrap around to the last selection.
Step 3: Finishing the programming sequence
PROG-key
During the programming sequence, this key is used to confirm the new value and
return to SETUP-level. To cancel the operation, either press the PROG-key for 3
seconds or wait for 20 seconds: the programming sequence is cancelled and the
former value is reinstated.

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3.2.4 RETURNING TO OPERATOR-LEVEL
When all settings are configured correctly, the unit can be returned to OPERATE-level.
Please keep a record of all settings for later reference.
Use the control panel to return to OPERATE-level
PROG-key
In order to return to the operator level, press the PROG-key for three seconds.
When no keys are pressed for 2 minutes, SETUP-level will be left automatically.
3.3 CONFIGURATION SETTINGS
All settings of the F190-A-OS can be set via the control panel.
The following paragraphs give a detailed description of each setting.
3.3.1 SETUP MENU - SETTINGS
SETUP FUNCTIONS AND VARIABLES
1
VALUE
1.1
UNIT
L- NL- mL - M3- AM3- NM3 - mg - g - Kg - TON- GAL - USGAL - IGAL - lb - bbL-cf -
scf - p - rev - °C - °F - K - % -M - mm - CM - mtr - inch - Ft –Yd - PSI - psig - mbar -
bar - barg –bara –KPA –KPAG - INHG –mmHg - MH2O –INH2O- Ph –mV –mA -
uS –PPM –RPM - no unit - custom
1.2
TIME UNIT
sec –min –hour –day - /xxx –‘- - -'
1.3
CUSTOMER UNIT
xxxxxxxx (eight alphanumeric characters)
1.4
DECIMALS
0000000; 111111.1; 22222.22; 3333.333
1.5
SPAN
0.000001 –999,999
1.6
DECIMALS SPAN
0 - 6
1.7
OFFSET
-999,999 - +999,999
2
ALARM
2.1
INPUT
Process value - percentage
2.2
INP ZERO
default - no relays - ignore
2.3
FUNCTION LOW-LOW
disable - alarm - pump - ctrl - valve - level - relay - output - signal
2.4
FUNCTION LOW
disable - alarm - pump - ctrl - valve - level - relay - output - signal
2.5
FUNCTION HIGH
disable - alarm - pump - ctrl - valve - level - relay - output - signal
2.6
FUNCTION HIGH-HIGH
disable - alarm - pump - ctrl - valve - level - relay - output - signal
2.7
SETPOINT LOW-LOW
-999.999 - 999,999
2.8
SETPOINT LOW
-999.999 - 999,999
2.9
SETPOINT HIGH
-999.999 - 999,999
2.A
SETPOINT HIGH-HIGH
-999.999 - 999,999
2.B
RESETPOINT LOW-LOW
-999.999 - 999,999
2.C
RESETPOINT LOW
-999.999 - 999,999
2.D
RESETPOINT HIGH
-999.999 - 999,999
2.E
RESETPOINT HIGH-HIGH
-999.999 - 999,999
3
HYSTERESIS
3.1
DELAY ALARM LOW-LOW
0.0 - 999.9 seconds
3.2
DELAY ALARM LOW
0.0 - 999.9 seconds
3.3
DELAY ALARM HIGH
0.0 - 999.9 seconds
3.4
DELAY ALARM HIGH-
HIGH
0.0 - 999.9 seconds
3.5
HYSTERESIS MODE
disable - balanced - unbalanced - absolute
3.6
HYSTERESIS LOW-LOW
0 - 999,999
3.7
HYSTERESIS LOW
0 - 999,999
3.8
HYSTERESIS HIGH
0 - 999,999
3.9
HYSTERESIS HIGH-HIGH
0 - 999,999
4
DISPLAY
4.1
ALARM SET
operator; setup; hidden; off
4.2
FUNCTION
process value, percentage
4.3
LIGHT
0% (off); 20%; 40%; 60%; 80%; 100% (full brightness)
4.4
BL ALARM
off; on; flash
5
POWER MANAGEMENT
5.1
LCD NEW
fast; 1 sec; 3 sec; 15 sec; 30 sec; off
5.2
BATTERY MODE
operational; shelf

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6
SENSOR
6.1
FORMULA
interpol - square root
6.2
FILTER
1 - 99
6.3
CUT-OFF
0.0 - 99.9%
6.4
CALIBRATE LOW
(0)4mA
6.5
CALIBRATE HIGH
20mA
7
ANALOG
7.1
OUTPUT
disable; enable
7.2
INPUT
process value, percentage
7.3
LEVEL-MIN
-999,999 –999,999
7.4
LEVEL-MAX
-999,999 –999,999
7.5
CUT-OFF
0.0 - 9.9%
7.6
TUNE-MIN
0 - 9999
7.7
TUNE-MAX
0 - 9999
7.8
FILTER
01 - 99
8
RELAYS
8.1
RELAY TEST
disable, all off, all on, relay 1, relay 2, relay 3, relay 4
8.2
RELAY 1
off; lo-lo; lo; hi; hi-hi; all
8.3
RELAY 2
off; lo-lo; lo; hi; hi-hi; all
8.4
RELAY 3
off; lo-lo; lo; hi; hi-hi; all
8.5
RELAY 4
off; lo-lo; lo; hi; hi-hi; all
8.6
OUTPUT RELAY1
default - fail-safe - pulse
8.7
OUTPUT RELAY2
default - fail-safe - pulse
8.8
OUTPUT RELAY3
default - fail-safe - pulse
8.9
OUTPUT RELAY4
default - fail-safe - pulse
8.A
CLEAR RELAY 1
disable - enable
8.B
CLEAR RELAY 2
disable - enable
8.C
CLEAR RELAY 3
disable - enable
8.D
CLEAR RELAY4
disable - enable
9
COMMUNICATION
9.1
MODE
bus-rtu; bus-asc; off
9.2
SPEED
1200 - 2400 - 4800 - 9600 - 9600HP - 19200 –38400 –57600
9.3
DATABITS
8 bits, 7 bits
9.4
PARITY
none, even. odd
9.5
ADDRESS
1 - 247
9.6
TRANSMIT DELAY
0 –255 ms
A
OTHERS
A.1
MODEL
F190-A-OS
A.2
SOFTWARE VERSION
03.05.xx
A.3
SERIAL NO.
nnnnnnn
A.4
PASSWORD
0000 - 9999
A.5
TAG-NR
0000000 - 9999999
3.3.2 MENU 1 VALUE
1
VALUE
1.1
UNIT
Select the engineering unit for the indication of the displayed value and
alarm values.
When you change the engineering unit, you must recalculate and
reprogram the span also. The calculation is not done automatically.
1.2
TIME UNIT
/SEC
/MIN
/HR
/DAY
/XXX
- - -
Selects the period setting for the engineering unit (Setup 1.1). The
following can be selected.
Unit per second
Unit per minute
Unit per hour
Unit per day
Unit per customized period. A slash and three characters are available

No period set. Required to have all eight characters available with Setup
1.3.
1.3
CUSTOM
A customized text of up to eight characters can be entered to be displayed
on the lower part of the LCD. For every character there is a choice of
numbers, letters and special characters.

FW_F190-A-OS_M_v2201-01_EN.docx
Page 14
To enable the / (slash), select the /XXX entry at SETUP 1.2. When a
different time unit is selected, the last 3 custom characters will be
overwritten.
Note: To clear the full set of characters: press CLEAR and SELECT
simultaneously during 3 seconds.
1.4
DECIMALS
This setting is used to set the amount of digits behind the decimal point for
the unit indication.
1.5
SPAN
With the span, the sensor signal is converted to a quantity. The span is
based on the engineering unit (Setup 1.1) and the level at 20 mA (or max
signal). Enter the span with the decimals (set in Setup 1.6). The more
accurate the span, the more accurate the functioning of the system will be.
Example 1: Calculating the Span.
Assume that the sensor generates 20 mA at a pressure of 18.95 bar, the
selected unit is mbar. The span is thus 18,950 mbar. Enter for the span:
"18950" and for the span decimals "0".
Example 2: Calculating the Span.
Assume that the sensor generates 20 mA at a level of 652.31 USGAL, and
the selected unit is ". The span is 652.31.
Enter for the span: "65231" and for the span decimals "2".
1.6
DECIMALS SPAN
This setting is used to set the number of digits behind the decimal point for
the span.
1.7
OFFSET
Enter the quantity present at minimum sensor signal ((0)4 mA).Note: a
negative level may be entered by pressing middle and right buttons
simultaneously.
3.3.3 MENU 2 ALARM
The following settings and the settings of SETUP Menu 3 Hysteresis determine how the process
value will be monitored. Settings that are connected to a specific alarm point, are indicated on the
display together with the type of alarm, abbreviated to LL, LO, HI and HH.
Note: Please be aware of the following:
•The alarm monitoring function can be disabled completely with SETUP 4.1. When the function is
enabled, the monitoring setpoints can be reviewed and programmed at operator level,
depending on the selection at SETUP 4.1.
•For transistor / relay output functions: read SETUP Menu 8 Relay Output
•All setpoints and reset points can be entered with a negative value as well. Press the middle and
right button simultaneously to toggle the minus-sign during editing.
2
ALARM
2.1
INPUT
The alarm function can be set to monitor either the process value or the
percentage value.
All values entered for setpoint, reset point and hysteresis must be in the
same format. Changing this setting requires them all to be updated.
2.2
INP ZERO
DEFAULT
NO RELAY
IGNORE
The behavior of the monitoring function for low and low-low alarms can be
adjusted for those cases where the sensor input signal is at its lowest value
(4mA, 0% or below its cut-off point), for example an empty tank.
The following can be selected:
Normal behavior: a low / low-low alarm condition will switch the alarm
output(s) and the alarm is shown on the display.
A low / low-low alarm condition will NOT switch the alarm output(s) but the
alarm status is indicated on the display.
A low / low-low alarm condition is completely ignored: no output will be
switched and no indication on the display.
2.3
FUNCTION LOW-
LOW
These settings are used to enable or disable the low-low, low, high and
high-high alarm monitoring functions individually.
To disable the function, select disable. To enable the function, select what
text should be displayed on the display when this alarm occurs.
The following can be selected:
disable - alarm - pump - ctrl - valve - level - relay - output - signal
2.4
FUNCTION LOW
2.5
FUNCTION HIGH
2.6
FUNCTION HIGH-
HIGH

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Page 15
2.7
SETPOINT LOW-
LOW
When low-low, low, high or high-high alarm monitoring is enabled at
SETUP 2.3 to SETUP 2.6, the setpoints are set with these settings.
An alarm will be generated as long as the actual value is:
LOW-LOW lower or equal to this setpoint.
LOW lower or equal to this setpoint.
HIGH higher or equal to this setpoint.
HIGH-HIGH higher or equal to this setpoint.
2.8
SETPOINT LOW
2.9
SETPOINT HIGH
2.A
SETPOINT HIGH-
HIGH
Note: SETUP-
ABSOLUTE at SETUP 3.5.
2.B
RESETPOINT
LOW-LOW
When low-low, low, high or high-high alarm monitoring is enabled at
SETUP 2.3 to SETUP 2.6 and the Hysteresis mode is set to Absolute at
SETUP 3.5, the reset points are set with these settings.
An alarm will be removed when the actual value becomes:
LOW-LOW higher or equal to this reset point.
LOW higher or equal to this reset point.
HIGH lower or equal to this reset point.
HIGH-HIGH lower or equal to this reset point.
Note: If a reset point conflicts with a setpoint (an alarm would be removed
and generated at the same time), the setpoint has higher priority.
2.C
RESETPOINT LOW
2.D
RESETPOINT HIGH
2.E
RESETPOINT
HIGH-HIGH
3.3.4 MENU 3 HYSTERESIS
3
HYSTERESIS
3.1
DELAY TIME LOW-
LOW
These settings allow an alarm generated by the low-low, low, high and
high-high alarm monitoring functions to be ignored during the set time
period. When the alarm situation still persists after this time, the alarm will
be reflected on the display and outputs as configured.
When the hysteresis mode (SETUP 3.5) is set to disabled, removal of a
previously generated alarm is done immediately.
If the hysteresis mode is set to a mode other than disabled, the delay time
is also used to delay the removal of a previously generated alarm. When
the alarm situation is still absent after this time, the alarm status will be
removed from the display and outputs if applicable.
3.2
DELAY TIME LOW
3.3
DELAY TIME HIGH
3.4
DELAY TIME HIGH-
HIGH
Note: If no hysteresis is required but a delay before removing an alarm is
also needed, this can be achieved by setting the hysteresis mode to either
Balanced or Unbalanced and setting the hysteresis values to zero (0).
3.5
HYSTERESIS
MODE
The hysteresis mode gives the opportunity to separate the alarms setpoint
and reset point from each other. This can prevent fast toggling of alarms
and alarm outputs.
Additionally, when a delay time is set (SETUP 3.1 - 3.4), fluctuations that
would otherwise cause an alarm will also be filtered out.
Hysteresis can also be used to reduce small process actions and combine
them into single larger actions. For example, filling a tank to 80% and then
enabling the pump to empty the tank to 50%, instead of continuously
turning the pump on and off.
The hysteresis mode is selected for all alarms together. The available
hysteresis modes are explained and illustrated in following the table.

FW_F190-A-OS_M_v2201-01_EN.docx
Page 16
MODE
LOW ALARMS
HIGH ALARMS
DISABLED
This mode is used when only simple setpoints are required. An alarm is generated
when the process value reaches the setpoint. The alarm is removed when the process
value passes the setpoint again in the right direction.
In this mode, the delay time is only active when an alarm is set, not when it is reset.
BALANCED
This mode is mostly used for control functions, e.g. a pump. It will allow the process
value to fluctuate within a band set by the hysteresis value, around the entered
setpoint.
When the setpoint is changed, the hysteresis band moves along with it.
In this mode, the delay time is active both when an alarm is set and when it is reset.
UNBALANCED
This mode is usually used for alarm monitoring applications. It causes an alarm to be
generated as soon as the process value reaches the entered setpoint. The alarm will
be removed when the process value changes in the right direction with the value set
for hysteresis.
When the setpoint is changed, the point at which the alarm is removed moves along
with it.
In this mode, the delay time is active both when an alarm is set and when it is reset.
ABSOLUTE
This mode can be used when the application requires independent setpoints and reset
points to be available.
An alarm is generated as soon as the process value reaches the entered setpoint and
the alarm will be removed when the process value crosses the reset point again.
When the setpoint is changed, the reset point remains at the same position; equally,
when the reset point is changed, the setpoint remains at the same position. This is
particularly useful when it is desired to change the setpoint at operator level but the
reset point must remain at the same position.
In this mode, the delay time is active both when an alarm is set and when it is reset.

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Page 17
3.6
HYSTERESIS LOW-
LOW
When the Hysteresis mode is set to Balanced or Unbalanced at SETUP
3.5, the hysteresis values are set with these settings.
Note: If a hysteresis value is set to zero (0), alarm generation is identical to
when the hysteresis mode is set to DISABLED, but the delay time is
activated both when an alarm is set and when it is reset.
3.7
HYSTERESIS LOW
3.8
HYSTERESIS HIGH
3.9
HYSTERESIS HIGH-
HIGH
Note: SETUP-
HYSTERESIS MODE is set to BALANCED or UNBALANCED at SETUP
3.5.
3.3.5 MENU 4 - DISPLAY
4
DISPLAY
4.1
ALARM SET
OPERATOR
SETUP
HIDDEN
OFF
Determines where alarm level can be set.
•Alarm can be set at OPERATOR level and at SETUP level
•Alarm can only be set at SETUP level
•Alarm levels cannot be displayed at OPERATOR level
•Alarm is switched off
4.2
FUNCTION
VALUE
PERCENTAGE
Selects the information to be displayed.
The process value is displayed, together with the set engineering unit.
Percentage of full scale process value is displayed
4.3
LIGHT
The backlight brightness can be adjusted from 0% (off) to 100% (full
brightness) in steps of 20%.
4.4
BL ALARM
Sets the backlight functionality during alarm condition. With setting ON,
backlight is red during alarm. With setting FLASH backlight flashes
red/white during alarm.
3.3.6 MENU 5 - POWER MANAGEMENT
5
POWER MANAGEMENT
5.1
LCD NEW
Sets the display refresh rate. Whenever a key is pressed, the display
refresh rate 
set rate. When 'OFF' is selected, the display temporarily comes on after a
key press and it will go off after 30 seconds after the last key press.
The calculation of the display-information influences the power
consumption significantly. When the application does not require a fast
display refresh rate, it is strongly advised to select a slow rate.
Please note that no information will be lost at low refresh rates: all sensor
input will be processed in the background.
5.2
BATTERY MODE
The F190-A-OS has two modes: operational or shelf.
After "shelf" has been selected, the F190-A-OS can be stored for several
years; it will not process the sensor signal; the display is switched off but all
settings are stored, also without additional battery.
To wake up the F190-A-OS again, press the SELECT/key two times.
3.3.7 MENU 6 - SENSOR
6
SENSOR
6.1
FORMULA
The F190-A-OS can process the analog input in two ways:
linear interpolated or as square root.
•Interpolation: the signal is processed linear: R = S x I
•Square root: for differential pressure: R = S I
where:
R = The calculated value
S= Span: the maximum value at 20mA. The span is programmed with
setting 1.5.
I = Input: the scaled analog value; in these formulas value 0 (zero) for
(0)4mA and value 1 (one) for 20mA.

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6.2
FILTER
The analog output signal of a sensor represents the actual process value.
This signal is measured several times a second. The value measured is a
"snap-shot" of the real value as it will be fluctuating.
With the help of this digital filter a stable and accurate reading can be
obtained while the filter level can be set to a desired value.
The filter principle is based on three input values: the filter level (01-99),
the last measured analog value and the last average value. The higher the
filter level, the longer the response time on a value change will be.
FILTER VALUE
RESPONSE TIME ON STEP CHANGE OF ANALOG VALUE (% OF END VALUE)
50%
75%
90%
99%
01
filter disabled
filter disabled
filter disabled
filter disabled
02
0.3
0.5
1.0
1.8
03
0.5
1.0
1.5
3
05
1.0
1.8
2.8
5.3
10
1.8
3.5
5.6
11
20
3.5
7.0
11
23
30
5.3
10
17
34
50
8.8
17
29
57
75
13
26
43
86
99
17
34
57
114
6.2
CUT-OFF
To ignore small signals, f.i. from vibration, a low signal cut-off can be set as
percentage over the full range of 16mA (or 20mA). When the analog value
is less than the programmed percentage, the level will be set to zero. The
cut-off value can be programmed in the range of 0.0 - 99.9%.
SPAN
SETUP 1.3
REQUIRED
CUT-OFF
CUT-OFF
SETUP 6.2
REQUIRED OUTPUT
450 L
25 L
25/450 x 100% = 5.5%
16 mA x 5.5% + 4 mA = 4.88 mA
6.3
CALIB LO
This setting is used to calibrate the input value for (0)4mA as the signal
from the sensor might not be exact 4.0 mA (or 0.0 mA) at minimum signal.
This function will set the sensor signal at minimum signal.
Be very sure that the offered signal is correct before the calibration is
executed as this function has major influences on the accuracy of the
system!
CALIB
DEFAULT
CAL SET
After pressing PROG, three settings can be selected.
The input will be calibrated with the actual "(0)4mA" value. After pressing
enter, CAL SET will be shown as soon as the calibration is completed.
From that moment, the analog value must be more than the calibrated
value before the signal will be processed.
Re-installs the factory value.
Selects the last calibrated value.
6.4
CALIB HI
This setting is used to calibrate the input value for 20 mA as the signal from
the sensor might not be exact 20.0 mA at maximum signal. This function
will set the sensor signal at maximum signal.
Be very sure that the offered signal is correct before the calibration is
executed as this function has major influences on the accuracy of the
system!
CALIB
DEFAULT
CAL SET
After pressing PROG, three settings can be selected.
The input will be calibrated with the actual "20 mA" value. After pressing
enter, CAL SET will be shown as soon as the calibration is completed.
From that moment, the analog value must be lower than the calibrated
value for reliable measurement.
Re-installs the factory value.
Selects the last calibrated value.

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Page 19
3.3.8 MENU 7 - ANALOG OUTPUT
A linear 4-20 mA signal output signal is generated that represents the process value. The
relationship between sensor signal and the analog output is set with the following settings.
7
ANALOG OUTPUT
7.1
OUTPUT
If the analog output is not used, select disable to minimize the power
consumption.
Option AP: When a power supply is available but the output is disabled, a
3.5 mA signal will be generated.
7.2
INPUT
Sets the source for the analog output: level, height or percentage of full
scale input signal.
7.3
MINIMUM OUT
Enter the input signal at which the output should generate the minimum
signal (0)4 mA or 0 V - in most applications at (0)4 mA sensor signal.
7.4
MAXIMUM OUT
Enter the input signal at which the output should generate the maximum
signal (20 mA or 10 V) - in most applications at 20 mA sensor signal.
7.5
CUT-OFF
A low level cut-off can be set as a percentage of the full range of 16 mA, 20
mA or 10 V.
When the signal is less than the cut-off value, the output current will be the
minimum signal (4 mA, 0 mA, 0 V). Examples:
MIN OUT
SETUP 7.3
MAX OUT
SETUP 7.4
CUT-OFF
SETUP 7.5
REQUIRED LEVEL
OUTPUT
0 L
100 L
2%
(100-0)*2% = 2.0 L
4+(16*2%) = 4.32 mA
20 L
800 L
3.5%
(800-20)*3.5%= 27.3 L
4+(16*3.5%)=4.56 mA
7.6
TUNE-MIN
The (0)4 mA or 0 V value can be tuned precisely with this setting. The
initial minimum analog output value is (0) 4mA or 0 V. However, this value
might differ slightly due to ambient influences such as temperature for
example.
Before tuning the signal, make sure that the analog signal is idle (not
used) for any application!
After pressing PROG, the current will be about 4 mA (0 mA or 0 V). The
current can be increased / decreased with the arrow keys and is directly
active. Press ENTER to store the new value.
If required, you can program the analog output 'up-side-down'. The (0)4
mA or 0 V represents the maximum level and the 20 mA or 10 V
represents the minimum level.
7.7
TUNE-MAX
The 20 mA or 10 V value can be tuned precisely with this setting. The initial
maximum analog output value is 20 mA or 10 V However, this value might
differ slightly due to ambient influences such as temperature for example.
Before tuning the signal, make sure that the analog signal is idle (not
used) for any application!
After pressing PROG, the current will be about 20 mA or 10 V. The current
can be increased / decreased with the arrow keys and is directly active.
Press ENTER to store the new value.
If required, you can program the analog output 'up-side-down'. The (0)4
mA or 0 V represents the maximum level and the 20 mA or 10 V
represents the minimum level.
7.8
FILTER
This setting is used to stabilize the output signal. With the help of this
digital filter a more stable but less actual representation of the level can be
obtained.
The filter principle is based on three input values: the filter level (01-99),
the last calculated level and the last average value. The higher the filter
level, the longer the response time on an input step change will be.
FILTER VALUE
RESPONSE TIME ON STEP CHANGE OF ANALOG VALUE (% OF END VALUE)
50%
75%
90%
99%
01
filter disabled
filter disabled
filter disabled
filter disabled
02
0.1 sec
0.2 sec
0.4 sec
0.7 sec
03
0.2 sec
0.4 sec
0.6 sec
1.2 sec
05
0.4 sec
0.7 sec
1.1 sec
2.1 sec

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Page 20
10
0.7 sec
1.4 sec
2.2 sec
4.4 sec
20
1.4 sec
2.8 sec
4.5 sec
9.0 sec
30
2.1 sec
4 sec
7 sec
14 sec
50
3.5 sec
7 sec
11 sec
23 sec
75
5.2 sec
10 sec
17 sec
34 sec
99
6.9 sec
14 sec
23 sec
45 sec
3.3.9 MENU 8 - RELAYS
8
RELAYS
8.1
RELAY TEST
Normal function of the outputs can be overridden for a short period. This
function is typically used during installation.
Selecting an output immediately switches the selected output on.
DISABLE testing is disabled, normal functioning of outputs resumed
ALL OFF all outputs are switched off
ALL ON all outputs are switched on
RELAY 1/2/3/4 output 1, 2, 3 or 4 is switched on.
After testing, select DISABLE to restore normal functioning. When SETUP
is left or the device is restarted, this setting is automatically set to default
DISABLE.
8.2
FUNCTION RELAY
1
Couples one or all alarms to output R1. See also SETUP 3.3 to 3.6
8.3
FUNCTION RELAY
2
Couples one or all alarms to output R2. See also SETUP 3.3 to 3.6
8.4
FUNCTION RELAY
3
Couples one or all alarms to output R3. See also SETUP 3.3 to 3.6
8.5
FUNCTION RELAY
4
Couples one or all alarms to output R4. See also SETUP 3.3 to 3.6
8.6
OUTPUT RELAY 1
Assign the way outputs R1 R4 behave when an alarm is generated.
The following can be selected:
DEFAULT The output is switched on when an alarm is present and off
when the alarm is removed.
FAIL-SAFE The output is switched on when no alarm is present and off
when the alarm is removed.
This has the advantage that during a power failure, external
systems will detect an alarm since the output cannot be
switched on anymore.
PULSE When an alarm is present, the output toggles on and off with
a frequency of 0.25 Hz (2 seconds on, 2 seconds off). This
allows for a horn to be connected that will blow with an
interval to raise more attention.
When the alarm is removed, the output is turned off.
8.7
OUTPUT RELAY 2
8.8
OUTPUT RELAY 3
8.9
OUTPUT RELAY 4
Clearing the alarm status of the outputs may be allowed in Operator mode. The following settings
enable or disable the clearing of alarms in Operator mode.
Clearing an alarm switches off the related output while the alarm status is still present. The alarm
indication on the display will not be cleared. In case an alarm reoccurs the output will be switched on
again. See Clear Alarm outputs on page 9 for an instruction how to clear alarms in Operator mode.
8.A
CLEAR 1
Enables or disables clearing the alarm status of R1, in Operator mode.
8.B
CLEAR 2
Enables or disables clearing the alarm status of R2, in Operator mode.
8.C
CLEAR 3
Enables or disables clearing the alarm status of R3, in Operator mode.
8.D
CLEAR 4
Enables or disables clearing the alarm status of R4, in Operator mode.