Fluidwell F Series User manual

F173-A
LEVEL INDICATOR WITH LINEARIZATION
AND HIGH / LOW ALARMS
Signal input sensor: (0)4-20mA
Signal outputs: (0)4-20mA/ 0-10V ref. level, height, percentage
Alarm outputs: maximum four level alarms
Options: Intrinsically Safe, Modbus communication, 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 F173-A 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 unit, the installer has to discharge himself by touching a well-grounded
object.
▪This unit must be installed in accordance with the EMC guidelines (Electro Magnetic
Compatibility).
▪Do connect a proper grounding to the metal enclosure as indicated if the F173-A has an
incoming power line which carries a 115-230V AC. The Protective Earth (PE) wire may
never be disconnected or removed.
▪Intrinsically safe applications: follow the instructions as mentioned in Chapter 5 and
consult “Fluidwell F1..-..-XI - Documentation for Intrinsic safety”.
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.
•Please contact your local dealer, national distributor or the manufacturer’s Technical 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 F173-A 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 unit.
▪Check all connections, settings and technical specifications of the various peripheral devices
with the F173-A 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 the classification of the
enclosure (see manufacture's plate and chapter 4).
▪If the operator detects errors or dangers, or disagrees with the safety precautions taken, then
inform the owner or principal responsible.
▪The local labor and safety laws and regulations must be adhered to.

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ABOUT THE OPERATION 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 F173-A is not used for the purpose it was designed for
or is used incorrectly. Please carefully note the information in this operating 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 F173-A or connected instruments.
A "caution !" indicates actions or procedures which, if not performed correctly, may lead to
personal injury or incorrect functioning of the F173-A 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 Fluidwell products,
visit our internet site www.fluidwell.com or contact us at [e-mail].
Hardware version : 03.01.xx
Software version : 03.05.03
Manual : FW_F173A_v1901_02_EN.docx
© Copyright 2021 : Fluidwell BV - 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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CONTENTS MANUAL
Safety instructions ................................................................................................................................ 2
Disposal of electronic waste................................................................................................................. 2
Safety rules and precautionary measures............................................................................................ 2
About the operation manual ................................................................................................................. 3
Warranty and technical support............................................................................................................ 3
Contents manual................................................................................................................................... 4
1. Introduction....................................................................................................................... 5
1.1. System description of the F173-A............................................................................... 5
2. Operational....................................................................................................................... 6
2.1. General ....................................................................................................................... 6
2.2. Control panel............................................................................................................... 6
2.3. Operator information and functions............................................................................. 7
3. Configuration.................................................................................................................... 9
3.1. Introduction ................................................................................................................. 9
3.2. Programming SETUP-menu....................................................................................... 9
3.2.1. General ....................................................................................................................... 9
3.2.2. Overview functions SETUP MENU...........................................................................12
3.2.3. Explanation of SETUP menu 1 –Level .................................................................... 13
3.2.4. Explanation of SETUP menu 2 –Height................................................................... 14
3.2.5. Explanation of SETUP menu 3 –Alarm.................................................................... 14
3.2.6. Explanation of SETUP menu 4 –Display ................................................................. 15
3.2.7. Explanation of SETUP menu 5 –Power Management............................................. 15
3.2.8. Explanation of SETUP menu 6 –Sensor.................................................................. 16
3.2.9. Explanation of SETUP menu 7 –Linearization.........................................................18
3.2.10. Explanation of SETUP menu 8 –Analog output....................................................... 19
3.2.11. Explanation of SETUP menu 9 –Relay output......................................................... 20
3.2.12. Explanation of SETUP menu A –Communication.................................................... 21
3.2.13. Explanation of SETUP menu B –Others.................................................................. 21
4. Installation......................................................................................................................22
4.1. General directions.....................................................................................................22
4.2. Installation - surrounding conditions .........................................................................22
4.3. Dimensions- Enclosure.............................................................................................23
4.4. Installing the hardware.............................................................................................. 25
4.4.1. General installation guidelines..................................................................................25
4.4.2. Protective Earth (PE) connections............................................................................ 26
4.4.3. Aluminum enclosure - Field mounted ....................................................................... 27
4.4.4. Aluminum enclosure - Panel mounted......................................................................28
4.4.5. Plastic (GRP) enclosure..................................... Fout! Bladwijzer niet gedefinieerd.
4.4.6. Terminal connectors .................................................................................................29
4.4.7. sensor supply............................................................................................................ 30
5. Intrinsically safe applications..........................................................................................35
5.1. General information and instructions........................................................................ 35
5.2. Terminal connectors Intrinsically safe applications................................................... 37
5.3. Configuration examples Intrinsically Safe applications.............................................39
5.4 Battery replacement instructions...............................................................................41
5.4.1. Safety instructions..................................................................................................... 41
5.4.2. Replace the battery (hazardous area) ...................................................................... 41
5.4.3. Disposal of batteries ................................................................................................. 41
6. Maintenance................................................................................................................... 42
6.1. General directions.....................................................................................................42
6.2. Repair........................................................................................................................ 42
6.3. Repair policy ............................................................................................................. 42
Appendix A: Technical specification...................................................................................................43
Appendix B: Problem solving.............................................................................................................. 46
Appendix C: Communication variables...............................................................................................47
Appendix D. Declaration of Conformity...............................................................................................52
Index of this manual............................................................................................................................ 53
List of figures in this manual............................................................................................................... 53

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1. INTRODUCTION
1.1. SYSTEM DESCRIPTION OF THE F173-A
Functions and features
The level indicator F173-A is a microprocessor driven instrument designed to display the linearized
level and percentage as well as monitoring the level with four alarm values for a low-low, low, high
and high-high level. This product has been designed with a focus on:
▪ultra-low power consumption to allow long-life battery powered applications (type PB / PC),
▪intrinsic safety for use in hazardous applications (type XI),
▪several mounting possibilities with aluminum or GRP enclosures for harsh industrial
surroundings,
▪ability to process all types of signals,
▪transmitting possibilities with analog, alarm and communication (option) outputs.
Sensor input
This manual describes the unit with one analog (0)4-20mA input for the level sensor "-A version".
To power the sensor, several options are available.
Standard outputs
▪Configurable alarm outputs: two, three or four alarm outputs, depending on the configuration
ordered. The functionality of the output can be user defined.
▪Configurable passive linear (0)4-20mA / 0-10V analog output with 10-bits resolution representing
the actual level. The minimum and maximum signal output can be tuned.
Fig. 1: Typical application for the F173-A.

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Configuration of the unit
The F173-A was designed to be implemented in many types of applications. For that reason, a
SETUP-menu is available to configure your F173-A according to your specific requirements.
SETUP includes several important features, such as Span, measurement units, signal settings etc.
All setting as are stored in EEPROM memory and will not get lost in case of power break-down or
empty battery.
To extend the battery-life time (option), please make use of the power-management functions as
described in chapter 3.2.3.
Display information
The unit has a large LCD to show the measuring units, the status information, the trend-indication
and the key-word messages.
Options
Following options are available: isolated or active 4-20mA / 0-10V / 0-20mA analog output, full
Modbus communication RS232/485 (also battery powered), intrinsic safety, mechanic relays or
active outputs, power- and sensor-supply options, panel-mount, wall-mount and weather-proof
enclosures, flame proof enclosure.
2. OPERATIONAL
2.1. GENERAL
▪The F173-A may only be operated by personnel 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.
This chapter describes the daily use of the F173-A. This instruction is meant for users / operators.
2.2. CONTROL PANEL
The following keys are available:
Fig. 2: Control panel.
Functions of the keys
This key is used to program and save new values or settings.
It is also used to get access to the SETUP-menu ; please read chapter 3.
This key is used to SELECT other display information or to increase a value.
The arrow-key is used to configure the unit; please read chapter 3.
This key is used to SELECT other display information or to select a digit.
The arrow-key is used configure the unit; please read chapter 3.

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2.3. OPERATOR INFORMATION AND FUNCTIONS
In general, the F173-A will always act at Operator level. The information displayed is dependent
upon the SETUP-settings. The signal generated by the connected sensor is measured by the
F173-A 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 level / height / percentage
This is the main display information of the F173-A. After selecting 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.
▪Programming the high / low alarm values
Remark: this function might not be accessible: it depends on the configuration of the unit. The
alarm value is related to level, height or percentage (depends on configuration setting).
When the SELECT-key is pressed a few times, the alarm values for low and high will be
displayed. To change the alarm value, following procedure must be execute:
1) press PROG: the word "PROGRAM" will be flashing,
2) use to select the digits and to change the blinking digit,
3) set the new alarm value by pressing the PROG/ENTER key.
Fig. 4: Example of display information during programming.
When data is altered but PROG/ENTER has not been pressed yet, then the alteration can
still be cancelled by waiting for 20 seconds or by pressing PROG/ENTER for a few seconds:
the former value will be reinstated.
▪Alarm
When the actual value 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 level is in its range again. Due to the
setup configuration it might be that the level is outside its range without an immediate alarm.
RUN

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▪Clear Alarm outputs
The Operator has the possibility to clear the alarm outputs, e.g. to turn off an alarm bel. This
feature can be enabled individually for each output in SETUP-menu 9. 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!
▪Low-battery alarm
When the battery voltage drops, it must be replaced.
Only original batteries supplied by the manufacturer may be used, else the guarantee and
liability will be terminated. The remaining lifetime after the first moment of indication is
generally several days.
Fig. 5: Example of low battery alarm.
▪Alarm
When the "ALARM"-flag is displayed on the screen without an additional alarm message, an
internal alarm has occurred. Please consult 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 the instrument may only
be carried out by trained personnel authorized by the operator of the facility. Personnel
must read and understand this Operating Manual before carrying out its instructions.
▪The F173-A may only be operated by personnel who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
▪Ensure that the measuring system is correctly wired up according to the wiring
diagrams. The enclosure may only be opened by trained personnel.
▪Take careful notice of the " Safety rules, instructions and precautionary measures " in
the front of this manual.
3.2. PROGRAMMING SETUP-MENU
3.2.1. GENERAL
Configuration of the F173-A is done via the SETUP-menu. The SETUP-menu is reached by
pressing the PROG/ENTER key for 7 seconds; at which time, both arrows will be displayed. In
order to return to the operator level, PROG will have to be pressed for three seconds. Alternatively, if
no keys are pressed for 2 minutes, the unit will exit the SETUP-menu automatically.
The SETUP-menu can be reached at all times while the F173-A remains fully operational.
Note: A password may be required to enter SETUP.
Without this password access to SETUP is denied.
To enter the SETUP-menu:

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Matrix structure of the SETUP-menu:
SCROLLING THROUGH SETUP-MENU
Selection function-group and function:
SETUP is divided into several function groups and functions.
Each function has a unique number, which is displayed below the word "SETUP" at the bottom of
the display. The number is a combination of two figures. The first figure indicates the function-group
and the second figure the function. Additionally, each function is expressed with a keyword.
After selecting a sub-function, the next main function is selected after scrolling through all "active"
sub-functions (e.g. 1, 11, 12, 13, 14, 1, 2, 3, 31 etc.).

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To change or a select a value or value:
To change a value, use to select the digits and to increase that value.
To select a setting, both and can be used.
When the new value is not valid, the increase signor decrease-signwill be displayed while you
are programming.
When data is altered but ENTER is not pressed, then the alteration can still be cancelled by waiting
for 20 seconds or by pressing ENTER for three seconds: the PROG-procedure will be left
automatically and the former value reinstated.
Note: alterations will only be set after ENTER has been pressed!
To return to OPERATOR-level:
In order to return to the operator level, PROG will have to be pressed for three seconds. Also, when
no keys are pressed for 2 minutes, SETUP will be left automatically.

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3.2.2. OVERVIEW FUNCTIONS SETUP MENU
SETUP FUNCTIONS AND VARIABLES
1
LEVEL
1.1
UNIT
L - m3 - kg - lb - GAL - USGAL - bbl - no unit
1.2
DECIMALS
0000000 -111111.1 - 22222.22 - 3333.333
1.3
SPAN
0.000001 - 999,999 unit
1.4
DECIMALS SPAN
0 - 6
1.5
OFFSET
-999,999 - +999,999 units
2
HEIGHT
2.1
UNIT
mm - cm - m - mtr - inch - ft - mmwk - mmwc - cmwk - cmwc -
mwk - mwc - inwc - ftwc - mbar - bar - psi - no unit.
2.2
DECIMALS
0 - 1 - 2 (Ref: displayed value)
2.3
SPAN
0.000001 - 999,999 unit
2.4
DECIMALS SPAN
0 - 6
2.5
OFFSET
-999,999 - +999,999 units
3
ALARM
3.1
INPUT
level - height - percentage
3.2
EMPTY
default - no relays - ignore
3.3
ALARM LOW-LOW
-999.999 - 999,999
3.4
ALARM LOW
-999.999 - 999,999
3.5
ALARM HIGH
-999.999 - 999,999
3.6
ALARM HIGH-HIGH
-999.999 - 999,999
3.7
DELAY ALARM LOW-LOW
0.0 - 999.9 seconds
3.8
DELAY ALARM LOW
0.0 - 999.9 seconds
3.9
DELAY ALARM HIGH
0.0 - 999.9 seconds
3.A
DELAY ALARM HIGH-HIGH
0.0 - 999.9 seconds
4
DISPLAY
4.1
ALARM SET
operator –setup –hidden –off
4.2
FUNCTION
level - level and height - level and percentage –height –
height and percentage, percentage
4.3
LIGHT BACKLIGHT
0 –20 –40 –60 –80 –100%
4.4
BACKLIGHT ALARM
off - on –flash
5
POWER MANAGEMENT
5.1
LCD UPDATE
fast - 1 sec - 3 sec - 15 sec - 30 sec - off
5.2
BATTERY MODE
operational - shelf
6
SENSOR
6.1
FILTER
1 - 99
6.2
CUT-OFF
0.0 - 99.9%
6.3
CALIBRATE LOW (4mA)
default –calibrate –cal set
6.4
CALIBRATE HIGH (20mA)
default –calibrate –cal set
7
LINEARIZATION
7.1
% / M-FACTOR 1
0.00% –99.99% / 0.000001 –9.999999
7.2
% / M-FACTOR 2
0.00% –99.99% / 0.000001 –9.999999
..
..
……..
7.F
% / M-FACTOR 15
0.00% –99.99% / 0.000001 –9.999999
7.G
LINEARIZATION
disable –enable
8
ANALOG
8.1
OUTPUT
disable - enable
8.2
INPUT
level - height - percentage
8.3
LEVEL MINIMUM
-999.999 - 999,999
8.4
LEVEL MAXIMUM
-999.999 - 999,999
8.5
CUT-OFF
0.0 - 9.9%
8.6
TUNE MIN - 4mA / 0V
0 - 9,999
8.7
TUNE MAX- 20mA / 10V
0 - 9,999
8.8
FILTER
1 - 99

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9
RELAYS
9.1
RELAY TEST
disable –all off –all on –relay 1 –relay 2 –relay 3 –relay 4
9.2
RELAY 1
off - low-low - low - high - high-high - all
9.3
RELAY 2
off - low-low - low - high - high-high - all
9.4
RELAY 3
off - low-low - low - high - high-high - all
9.5
RELAY 4
off - low-low - low - high - high-high - all
9.6
CLEAR 1
disable - enable
9.7
CLEAR 2
disable - enable
9.8
CLEAR 3
disable - enable
9.9
CLEAR 4
disable - enable
A
COMMUNICATION
A.1
MODE
off –bus asc –bus rtu
A.2
SPEED
1200 - 2400 - 4800 - 9600 –9600HP - 19200 - 38400
A.3
DATABITS
7 bits - 8 bits
A.4
PARITY
none - even - odd
A.5
ADDRESS
1 –247
A.6
TRANSMIT DELAY
0 –255 ms
B
OTHERS
B.1
MODEL
F173-A
B.2
SOFTWARE VERSION
xx-xx-xx
B.3
SERIAL NO.
xxxxxxx
B.4
PASSWORD
0000 - 9999
B.5
TAGNUMBER
0000000 - 9999999
3.2.3. EXPLANATION OF SETUP MENU 1 –LEVEL
Note: The linearization influences the operator values for level and percentage and not the height.
UNIT
1.1
SETUP –1.1 determines the measurement unit for the displayed level
and alarm values. The following units can be selected:
L - m3 - kg - lb. - GAL - USGAL - bbl - _ (no unit).
Alteration of the measurement unit will have consequences for operator
and SETUP-level values.
Please note that the Span has to be adapted as well; the calculation is not
done automatically.
DECIMALS
1.2
This setting determines for level the number of digits following the decimal
point. The following can be selected:
0000000 - 111111.1 - 22222.22 - 3333.333
SPAN
1.3
With the span, the sensor signal is converted to a quantity.
The span for level is determined on the basis of the selected
measurement unit at 20mA. The more accurate the span, the more
accurate the functioning of the system will be.
Example 1 Calculating the span for level
Let us assume that the sensor generates 20mA at a level
of 2,481.3 Liters, the selected unit is "Liters".
The span is 2481.3
Enter for SETUP –1.3: "2481.3".
Example 2 Calculating the span for level
Let us assume that the sensor generates 20mA at a level
of 652.31 USGAL, the selected unit is USG.
The span is 652.31. Enter for SETUP –1.3: "652.31.
DECIMALS SPAN
1.4
This setting determines the number of decimals for Span (SETUP 1.3).
The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
OFFSET
1.5
Enter here the "not measured" quantity which is below the sensor, in case
a pressure transducer e.g. is used to measure the quantity.
Also, a negative offset can be entered: do press the middle and right
button simultaneously.

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3.2.4. EXPLANATION OF SETUP MENU 2 –HEIGHT
If desired the height of the level column can be calculated and displayed.
Note: The linearization influences the operator values for level and percentage and not the height.
UNIT
2.1
SETUP –2.1 determines the measurement unit for height:.
The following units can be selected:
mm - cm - m - mtr - inch - ft - mmwk - mmwc - cmwk - cmwc
mwk - mwc - inwc - ftwc - mbar - bar - psi - no unit.
Alteration of the measurement unit will have consequences for operator
and SETUP-level values.
Please note that the Span (2.3) has to be adapted as well; the calculation
is not done automatically.
DECIMALS
2.2
This setting determines for height the number of digits following the
decimal point. The following can be selected:
00000 - 1111.1 - 2222.22
SPAN
2.3
With the span, the sensor signal is converted to a height.
The span for height is determined on the basis of the selected
measurement unit at 20mA.
The more accurate the span, the more accurate the functioning of the
system will be :
Example Calculating the span for height > next page
Let us assume that the sensor generates 20mA at a level
of 2,481.3 cm, the selected unit is "cm".
The span is 2481.3
Enter for SETUP –2.3: "2481.30".
DECIMALS SPAN
2.4
This setting determines the number of decimals for Span (SETUP 2.3).
The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
OFFSET
2.5
Enter here the "not measured" height which is below the sensor, in case a
pressure transducer is used for example to measure the level.
Also, a negative offset can be entered: do press the middle and right
button simultaneously.
3.2.5. EXPLANATION OF SETUP MENU 3 –ALARM
With these settings, it is determined how the level will be monitored and the functionality of the
transistor / relay outputs be determined.
Please be aware that the alarm levels can be programmed at operator level as well. Moreover, the
function can be locked or hidden (setup 4.1).
Note: for transistor / relay output functions: read SETUP Menu 9 –Relay Output
INPUT
3.1
The alarm function can be set to monitor either level, height or percentage
(of the sensor input signal).
EMPTY
3.2
The behavior of the monitoring function for low and low-low alarm values
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 when the
tank is empty.
The following can be selected:
DEFAULT: Normal behavior: a low / low-low alarm condition switches
on the alarm output(s) and the display will indicate the
alarm status.
NO RELAY: A low / low-low alarm condition will NOT switch on the
alarm output(s), the alarm status is indicated on the display.
IGNORE: A low / low-low alarm condition is completely ignored: no
output will be switched and no indication on the display.
ALARM LOW - LOW
3.3
The low-low alarm is set with this setting. An alarm will be generated as
long as the value lower as this value.
ALARM LOW
3.4
The low alarm is set with this setting. An alarm will be generated as long
as the value is lower as this value.

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ALARM HIGH
3.5
The high alarm is set with this setting. An alarm will be generated as long
as the value is higher as this value.
ALARM HIGH - HIGH
3.6
The high-high alarm is set with this setting. An alarm will be generated as
long as the value is higher as this value.
DELAY TIME ALARM
LOW - LOW
3.7
An alarm generated by SETUP 3.3 “low-low” can be ignored during X-time
period. If the actual value is still incorrect after this delay time, then an
alarm will be generated.
DELAY TIME ALARM
LOW
3.8
An alarm generated by SETUP 3.4 “low” can be ignored during X-time
period. If the actual value is still incorrect after this delay time, then an
alarm will be generated.
DELAY TIME ALARM
HIGH
3.9
An alarm generated by SETUP 3.5 “high” can be ignored during X-time
period. If the actual value is still incorrect after this delay time, then an
alarm will be generated.
DELAY TIME ALARM
HIGH - HIGH
3.A
An alarm generated by SETUP 3.6 “high-high” can be ignored during
X-time period. If the actual value is still incorrect after this delay time, then
an alarm will be generated.
3.2.6. EXPLANATION OF SETUP MENU 4 –DISPLAY
ALARM SET
4.1
This function determines if the level alarm values can be set at both
Operator level and SETUP-level (operator), SETUP-level only (setup), are
hidden for the operator (hidden) or disabled (off).
FUNCTION
4.2
Determine the displayed information:
Level: only the level is displayed with the big digits
Level and height: as LEVEL plus the height at the bottom line.
Level and percentage: as LEVEL plus the percentage of the level value
Height: only the height is displayed with the big digits
Height and percentage: as height plus the percentage of the level value.
Percentage: only the percentage is displayed with the big digits
The functions below will only effect the optional LED-backlight.
LIGHT
4.3
If a LED backlight has been supplied, the intensity can be set in the range
0 –100%
BACKLIGHT ALARM
4.4
In case the F173-A generates an alarm, the backlight can be set to
change to red. Following selections are available:
OFF: this function is disabled
ON: during an alarm the color is red.
FLASH: during an alarm the color flashes red / white.
3.2.7. EXPLANATION OF SETUP MENU 5 –POWER MANAGEMENT
When used with the internal battery option (type PB / PC), the user may hold the concern of reliable
measurement over a long period of time. The F173-A has several smart power management
functions to extend the battery life time significantly. Two of these functions can be set:
LCD NEW
5.1
The calculation of the display-information influences the power
consumption significantly. When the application does not require a fast
display update, it is strongly advised to select a slow refresh-rate.
Please understand that NO information will be lost; the signal will be
processed and the output-signals will be generated in the normal way.
The following can be selected:
Fast - 1 sec - 3 sec - 15 sec - 30 sec - off.
Example 3: Battery life-time
battery life-time with FAST update: about 1 years.
battery life-time with 1 sec update: about 3 years.
Note: after a button has been pressed by the operator - the display
refresh-rate will always be FAST during 30 seconds. When "OFF" is
selected, the display will be switched-off after 30 seconds and will be
switched-on as soon as a button has been pressed.
BATTERY-MODE
5.2
The unit has two modes: operational or shelf.
After "shelf" has been selected, the unit can be stored for several years; it
will not process the signal, the display is switched-off but all settings are
stored. In this mode, power consumption is extremely low.
To wake-up the unit again; press the SELECT-key twice.

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3.2.8. EXPLANATION OF SETUP MENU 6 –SENSOR
FILTER
6.1
The analog output signal of a sensor represents the actual level. This
signal is measured several times a second by the F173-A. The value
measured is a "snap-shot" of the real level 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 principal is based on three input values: the filter level (01-99),
the last measured sensor input signal and the last average value. The
higher the filter level, the longer the response time on a value change will
be. Below, several filter levels with their response times are indicated:
FILTER VALUE
RESPONSE TIME ON STEP CHANGE OF ANALOG VALUE.
TIME IN SECONDS
50% INFLUENCE
75% INFLUENCE
90% INFLUENCE
99% INFLUENCE
01
filter disabled
filter disabled
filter disabled
filter disabled
02
0.3 seconds
0.5 seconds
1.0 seconds
1.8 seconds
03
0.5 seconds
1.0 seconds
1.5 seconds
3 seconds
05
1.0 seconds
1.8 seconds
2.8 seconds
5.3 seconds
10
1.8 seconds
3.5 seconds
5.6 seconds
11 seconds
20
3.5 seconds
7.0 seconds
11 seconds
23 seconds
30
5.3 seconds
10 seconds
17 seconds
34 seconds
50
8.8 seconds
17 seconds
29 seconds
57 seconds
75
13 seconds
26 seconds
43 seconds
86 seconds
99
17 seconds
34 seconds
57 seconds
114 seconds
CUT-OFF
6.2
To ignore e.g. vibration, a low-level cut-off can be set as percentage over
the full range of 16mA (or 20mA). When the sensor input signal is less
than required with this setting, the signal will be ignored.
The cut-off value can be programmed is the range 0.0 - 99.9%.
Example:
SPAN
(setup 1.3)
REQUIRED
CUT-OFF
CUT-OFF
(setup 6.2)
REQUIRED OUTPUT
450 L
25 L
25/450 x 100%=5.5%
16mA x 5.5% + 4mA = 4.88mA
TUNE MIN / 4MA
6.3
With this setting it is possible 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 measure the real output value at minimum signal.
▪Warning: 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!
After pressing PROG, three settings can be selected:
▪CALIBRATE: with this setting, the input will be calibrated with the
actual "(0)4mA" value. After pressing enter, CAL SET will be
displayed as soon as the calibration is completed. From that moment,
the sensor input signal must be higher than the calibrated value
before the signal will be processed.
▪DEFAULT: with this setting, the manufactures value is re-installed.
▪CAL SET: to select the last calibrated value.

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TUNE MAX / 20MA
6.4
With this setting it is possible to calibrate the input value for 20mA as the
signal from the sensor might not be exact 20.0 mA at maximum signal.
This function will measure the real output value at maximum level.
▪Warning: 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!
After pressing PROG, three settings can be selected:
▪CALIBRATE: with this setting, the input will be calibrated with the
actual "20mA" value. After pressing enter, CAL SET will be displayed
as soon as the calibration is completed. From that moment, the
sensor input signal must be lower than the calibrated value for a
reliable measurement.
▪DEFAULT: with this setting, the manufactures value is re-installed.
▪CAL SET: to select the last calibrated value.

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3.2.9. EXPLANATION OF SETUP MENU 7 –LINEARIZATION
The linearization function is available to correct for the tank shape, to approach the real contents of
the tank at any height, beyond the general Span entered with setup 13.
A maximum of fifteen linearization-positions can be entered while the interpolation will calculate any
other position in-between.
For each linearization position, the percentage of signal and the Meter-Factor (MF) must be entered.
The linearization influences the operator values for level and percentage and not the height.
The Meter Factor for each linearization step is calculated with following formula:
Meter-Factor = measured level
calculated level
It is advised to enter the percentages in increasing order, however it is not necessary. Please have a
look at following example to understand the method of linearization:
695.9
1195.3
2635.0
4250.0 Level in
Liters
Signal
mA
No.1:
The real quantity is 695.9 L @ 5.60mA
(5.60 - 4.00) / (20.00 - 4.00) x 100% = 10.00% of signal
At 10% of the signal, you would expect: 4250.0 x 10% = 425.0 L
The M-Factor for No.1 is: 695.9 / 425.0 = 1.636471
No.2:
The real quantity 1195.3 L @ 8.11mA
(8.11 - 4.00) / (20.00 - 4.00) x 100% = 25.69% of signal
At 25.69% of the signal, you would expect: 4250.0 x 25.69% = 1091.7 L
The M-Factor for No.2 is: 1195.3 / 1091.7 = 1.094898
No.3:
The real quantity is 2635.0 L @ 14.88mA
(14.88 - 4.00) / (20.00 - 4.00) x 100% = 68.00% of signal
At 68.00% of the signal, you would expect: 4250.0 x 68.00% = 2890.0 L
The M-Factor for No.3 is: 2635.0 / 2890.0 = 0.911765
No.1
No.2
No.3
0.00
0.0
4.00
(0%) 5.60
(10.00%)
8.11
(25.69%) 14.88
(68.00%) 20.00
(100%)
In this example:
Span: 4250 Liter
Signal calibrated on: 4-20mA

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% / M-FACTOR
7.1 TO 7.F
The percentage is displayed at the bottom line of the display.
With value 0% the M-Factor is disabled.
The M-Factor is displayed at the top-line of the display. The minimum
value to be entered is 0.000001 and the maximum value is 9.999999.
Please note that this value has always six decimals while the "dot" is not
displayed.
Most M-factors will be around 1.000000 like 0.945354 or 1.132573.
DISABLE / ENABLE
7.G
With this setup function, you can easily enable / disable the linearization
function.
3.2.10. EXPLANATION OF SETUP MENU 8 –ANALOG OUTPUT
A linear 4-20mA signal (type AB: 0-20mA or type AU: 0-10V) output signal is generated according
with a 10 bits resolution.
DISABLE / ENABLE
8.1
The analog output can be disabled.
In case of a passive analog output type AP, 3.5mA will be generated if a
power supply is available but the output is disabled.
INPUT
8.2
The analog output can be set either for level, height or percentage (of
level).
MINIMUM OUTPUT
8.3
Enter here the value according which the output should generate a 4mA
signal (or 0mA / 0V) - in most applications at minimum signal.
MAXIMUM OUTPUT
8.4
Enter here the value according which the output should generate a 20mA
(or 10V) - in most applications at maximum signal.
CUT-OFF
8.5
A low-level cut-off can be set as percentage over the full range of 16mA
(or 20mA / 10V).
When the value is less than the cut-off value, the current will be 4mA.
Examples:
4MA
(SETUP 8.3)
20MA
(SETUP 8.4)
CUT-OFF
(SETUP 8.5)
REQUIRED LEVEL
OUTPUT
0 L
100 L
2%
(100-0)*2% = 2.0 L
4+(16*2%) = 4.32mA
20 L
800 L
3.5%
(800-20)*3.5%= 27.3 L
4+(16*3.5%)=4.56mA
TUNE MIN / 4MA
8.6
The initial minimum analog output value is 0/4mA or 0V. However, this
value might differ slightly due to external influences such as temperature
for example. The 0/4mA or 0V value can be tuned precisely with this
setting.
▪Before tuning the signal, be sure that the analog signal is not
being used for any application!
After pressing PROG, the current will be about 4mA (or 0mA / 0V). The
current can be increased / decreased with the arrow-keys and is directly
active. Press ENTER to store the new value.
Remark: the analog output value can be programmed “up-side-down” if
desired, so 20mA at minimum level for example!
TUNE MAX / 20MA
8.7
The initial maximum analog output value is 20mA (or 10V). However, this
value might differ slightly due to external influences such as temperature
for example. The 20mA value (or 10V) can be tuned precisely with this
setting.
▪Before tuning the signal, be sure that the analog signal is not
being used for any application!
After pressing PROG, the current will be about 20mA. The current can be
increased / decreased with the arrow-keys and is directly active. Press
ENTER to store the new value.
Remark: the analog output value can be programmed “up-side-down” if
desired, so 4mA at maximum level for example!

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FILTER
8.8
This function is used to stabilize the analog output signal.
The output value is update eight times per second. With the help of this
digital filter a more stable but less actual reading can be obtained.
The filter principal is based on three input values: the filter level (01-99),
the last analog output value and the last average value. The higher the
filter level, the longer the response time on a value change will be.
Below, several filter levels with their response times are indicated:
FILTER VALUE
RESPONSE TIME ON STEP CHANGE OF ANALOG VALUE.
TIME IN SECONDS
50% INFLUENCE
75% INFLUENCE
90% INFLUENCE
99% INFLUENCE
01
filter disabled
filter disabled
filter disabled
filter disabled
02
0.1 second
0.2 second
0.4 second
0.7 second
03
0.2 second
0.4 second
0.6 second
1.2 seconds
05
0.4 second
0.7 second
1.1 seconds
2.1 seconds
10
0.7 second
1.4 seconds
2.2 seconds
4.4 seconds
20
1.4 seconds
2.8 seconds
4.5 seconds
9.0 seconds
30
2.1 seconds
4 seconds
7 seconds
14 seconds
50
3.5 seconds
7 seconds
11 seconds
23 seconds
75
5.2 seconds
10 seconds
17 seconds
34 seconds
99
6.9 seconds
14 seconds
23 seconds
45 seconds
3.2.11. EXPLANATION OF SETUP MENU 9 –RELAY OUTPUT
With “SETUP 3”, four alarm levels can be entered. Based on the options ordered, the F173-A will
have 2, 3 or 4 alarm outputs.
If the unit is Intrinsically Safe, it will have two alarm outputs. If type OS (relay board) has been
supplied, it will have four alarm outputs. Otherwise, it will have three alarm outputs.
RELAYTST
9.1
With RELAY TEST, the normal control of the relays will be overridden for
a short period of time. This function is typically used during installation to
check wiring and performance.
Select the desired relay or “all on” to switch the relay immediately. When
“all off”is selected, all outputs are disabled.
After testing, select “disable” to return to normal operation function.
The following can be selected:
disable –all off –all on –relay 1 –relay 2 –relay 3 –relay 4
Please note: when SETUP is left or the device is restarted, this setting is
automatically restored to ‘disable’ so normal operation is restarted.
RELAY 1
9.2
Assign the output function to output R1.
The following can be selected:
low-low - low - high - high-high alarm - all alarms - off
RELAY 2
9.3
Assign the output function to output R2.
The following can be selected:
low-low - low - high - high-high alarm - all alarms - off
RELAY 3
9.4
Assign the output function to output R3.
The following can be selected:
low-low - low - high - high-high alarm - all alarms - off
RELAY 4
9.5
Assign the output function to output R4.
The following can be selected:
low-low - low - high - high-high alarm - all alarms - off
The functions below allow the operator to clear the alarm outputs, while the cause of the alarm is still
be available. Clearing will only switch-off the appropriate alarm output(s) but not the visible alarm
indication on the display! In case the alarm situation reoccurs or a new alarm arises, the alarm
relay(s) are triggered again. See chapter 2: Clear alarm outputs for an instruction on how to clear the
alarm outputs at operator level.
CLEAR 1
9.6
Enable this setting when the Operator is allowed to clear the alarm output
status of RELAY 1. The following can be selected:
disable –enable
CLEAR 2
9.7
Enable this setting when the Operator is allowed to clear the alarm output
status of RELAY 2. The following can be selected:
disable –enable