Fluidwell F Series User manual

F114-A
RATIO INDICATOR AND MONITOR
WITH TOTALIZER / FLOWRATE INDICATION
Signal input flowmeters: (0)4-20mA
Signal outputs: 4-20mA ref. ratio or flowrate
Alarm outputs: maximum four ratio alarms
Options: Intrinsically Safe, Modbus communication
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 F114-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 aluminum casing as indicated if the F114-A has
been supplied with the 115-230V AC power-supply type PM. The green / yellow wire
between the back-casing and removable terminal-block may never be removed.
Intrinsically Safe applications: follow the instructions as mentioned in Chapter 5 and
consult “Fluidwell F1..-..-XI - Documentation for Intrinsic Safety”.
DISPOSAL
At the end of its life this product should be disposed of according to local regulations regarding
waste electronic equipment. If a battery is present in this product it should be disposed of
separately. The separate collection and recycling of your waste equipment will help to conserve
natural resources and ensure that it is recycled in a manner that protects the environment.
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 F114-A implemented without preceding written consent from the
manufacturer, will result in the immediate termination of product liability and warranty period.
Installation, use, maintenance and servicing of this equipment must be carried out by authorized
technicians.
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 F114-A supplied.
Open the casing 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 casing
classification (see manufacture's plate and chapter 4.2.).
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 operation 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 operation manual describes the standard unit as well as most of the options available. For
additional information, please contact your supplier.
A hazardous situation may occur if the F114-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 F114-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 F114-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.
Hardware version : 02.01.xx
Software version : 02.05.xx
Manual : HF114AEN_v0501_04
© Copyright 2011 : 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
Safety rules and precautionary measures ....................................................................................................... 2
1. Introduction ................................................................................................................................. 5
1.1. System description of the F114-A.......................................................................................... 5
2. Operational.................................................................................................................................. 7
2.1. General .................................................................................................................................. 7
2.2. Control panel.......................................................................................................................... 7
2.3. Operator information and functions ....................................................................................... 8
3. Configuration............................................................................................................................. 10
3.1. Introduction .......................................................................................................................... 10
3.2. Programming SETUP-level.................................................................................................. 10
3.2.1. General ................................................................................................................................ 10
3.2.2. Overview functions SETUP level ......................................................................................... 13
3.2.3. Explanation OF SETUP-functions........................................................................................ 14
1 - Total A ....................................................................................................................... 14
2 - Flowrate A.................................................................................................................. 15
3 - Total B ...................................................................................................................... 16
4 - Flowrate B................................................................................................................. 16
5 - Ratio .......................................................................................................................... 17
6 - Alarm ......................................................................................................................... 18
7 - Display ....................................................................................................................... 18
8 - Power management .................................................................................................. 19
9 - Flowmeter A............................................................................................................... 20
A - Flowmeter B .............................................................................................................. 22
B - Analog output ............................................................................................................ 23
C - Relay output .............................................................................................................. 24
D - Communication (optional) ......................................................................................... 24
E - Others........................................................................................................................ 24
4. Installation ................................................................................................................................. 25
4.1. General directions................................................................................................................ 25
4.2. Installation / surrounding conditions .................................................................................... 25
4.3. Dimensions- Enclosure ........................................................................................................ 26
4.4. Installing the hardware......................................................................................................... 28
4.4.1. Introduction .......................................................................................................................... 28
4.4.2. Voltage selection sensor supply .......................................................................................... 29
4.4.3. Terminal connectors ............................................................................................................ 30
5. Intrinsically safe applications..................................................................................................... 37
5.1. General information and instructions ................................................................................... 37
5.2. Terminal connectors Intrinsically Safe applications ............................................................. 38
5.2. Terminal connectors Intrinsically Safe applications: ............................................................ 38
5.3. Configuration examples Intrinsically Safe applications........................................................ 40
5.4 Battery replacement instructions.......................................................................................... 42
6. Maintenance.............................................................................................................................. 43
6.1. General directions................................................................................................................ 43
6.2. Repair................................................................................................................................... 43
Appendix A: Technical specification .............................................................................................................. 44
Appendix B: Problem solving......................................................................................................................... 48
Appendix C: Communication variables.......................................................................................................... 49

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1. INTRODUCTION
1.1. SYSTEM DESCRIPTION OF THE F114-A
Functions and features
The ratio indicator / monitor model F114-A is a microprocessor driven instrument designed to
calculate, display and monitor the ratio between two flows as well as the flowrates and totals.
This product has been designed with a focus on:
ultra-low power consumption to allow long-life battery powered applications (option PB),
intrinsic safety for use in hazardous applications (option XI),
several mounting possibilities with aluminum or GRP enclosures for harsh industrial
surroundings,
ability to process all types of flowmeter signals,
transmitting possibilities with analog / pulse and communication (option) outputs.
Flowmeter input
This manual describes the unit with a (0)4-20mA input from the flowmeter "-A version". Other
versions are available to process pulse or 0-10V flowmeter signals.
Two flowmeters with a (0)4-20mA output can be connected to the F114-A. To power the sensors,
several options are available
Standard outputs
Max. four configurable alarm outputs: high-, low-, high-high- or low-low-ratio alarm. Switched as
long as the ratio is too high or too low.
Configurable (0)4-20mA or 0-10V analog output with 10-bits resolution mirroring the actual ratio
or flowrate. The minimum and maximum signal output levels can be tuned.
Fig. 1: Typical application for the F114-A.
Overview typical application F114
mA
4-20mA output
or optional
0-20mA / 0-10V
RS232/RS485
Modbus
(option)
R1:
alarm output R2:
alarm output
R3:
alarm output
R4:
alarm output
e.g. sounde
r
e.g. sounde
r
e.g. sounde
r
e.g. sounde
r

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Configuration of the unit
The F114-A was designed to be implemented in many types of applications. For that reason, a
SETUP-level is available to configure your F114-A according to your specific requirements.
SETUP includes several important features, such as Span, measurement units etc. All setting are
stored in EEPROM memory and will not be lost in the event of power failure or a drained 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 transflective LCD with all kinds of symbols and digits to display measuring units,
status information, trend-indication and key-word messages.
Ratio, flowrate and totals are displayed with the large 17mm digits.
A backup of the total’s is made in EEPROM memory every minute.
Options
The 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, mechanical relay or
active outputs, power- and sensor-supply options, panel-mount, wall-mount and weather-proof
enclosures, flame proof enclosure.

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2. OPERATIONAL
2.1. GENERAL
The F114-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 F114-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 gain access to SETUP-level; please read chapter 3.
This key is used to SELECT the flowrates, totals and alarm values.
The arrow-key is used to configure the unit; please read chapter 3.
Press this key twice to CLEAR the value for total.
The arrow-key is used to configure the unit; please read chapter 3.

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2.3. OPERATOR INFORMATION AND FUNCTIONS
In general, the F114-A will always function at Operator level. The information displayed is dependant
upon the SETUP-settings. All pulses generated by the connected flowmeter are measured by the
F114-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.
Not all information can be displayed at once, but first after pressing the select-key. At the bottom-left
of the display, the actual liquid number (A or B) is displayed when necessary.
RUN RUN
Fig. 3: Example of display information during process.
For the Operator, the following functions are available:
Display ratio:
This is the main display information of the F114. After selecting other information, it will return
to the main display automatically.
The ratio is calculated by measuring two flows: flow A and flow B. The displayed ratio can
indicate:
-the actual flowrate of the additive compared to the flowrate of the main flow, or
-the actual flowrate of the additive compared to the flowrate of the total flow (sum of the
additive+main flow).
The arrows indicate the increase/decrease of the ratio.
Programming the ratio alarm values
Note: This function might not be immediately accessible due to a configuration setting.
When the SELECT-key is pressed a few times, following ratio alarm values are displayed:
low-low ratio alarm (LL): enter here 1-0.010 for example,
low ratio alarm: enter here 1-0.2 for example,
high ratio alarm: enter here 1-1.0 for example,
high-high ratio alarm (HH): enter here 1-1.2 for example.
To change the alarm value, the following procedure must be executed:
1) press PROG: the word "PROGRAM" will flash or a pass code will be requested,
2) use to select the digits and to increase that value,
3) confirm the new alarm value by pressing ENTER.
Fig. 4: Examples display information in % and 1:x during programming the high ratio value.
RUN RUN

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When data is altered but ENTER has not been pressed yet, then the alteration can still be
cancelled by waiting for 20 seconds or by pressing ENTER during three seconds: the former
value will be reinstated.
Ratio alarm
When the actual ratio is outside the allowed range, an alarm message will be displayed
indicating the type of alarm: "LO RATIO”, "HI RATIO", "LO-LO RATIO" or "HI-HI RATIO".
The alarm is terminated automatically as soon as the ratio is within its range again.
Display flowrate:
Note: This function might not be immediately accessible due to a configuration setting.
The actual flowrate of each flowmeter is displayed after pressing select several times. When "-
------" is shown, the flowrate is too high to be displayed. The arrows indicate the
increase/decrease of the flowrate.
Display total:
Note: This function might not be immediately accessible due to a configuration setting.
The actual total quantity of each flowmeter is displayed after pressing select several times.
Clear Total:
When the total quantity is displayed, the value can be initialized. To do so, press CLEAR
twice. After pressing CLEAR once, the text "PUSH CLEAR" is displayed while the display
information is flashing. To avoid initialization in that stage, press a different key or wait for 20
seconds.
Low-battery alarm
When the battery voltage drops, it must be replaced. At first "low-battery" will flash, but as
soon as it is displayed continuously, the battery MUST be replaced shortly after!
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 up to some weeks.
Fig. 5: Example of low-battery alarm.
Alarm 01-03:
When "alarm" is displayed, please consult Appendix B: problem solving.
RUN

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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 F114-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 housing 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-LEVEL
3.2.1. GENERAL
Configuration of the F114-A is done at SETUP-level. SETUP-level 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 SETUP automatically.
SETUP can be reached at all times while the F114-A remains fully operational.
Note: A pass code may be required to enter SETUP. Without this pass code access to SETUP is
denied.
To enter SETUP-level:

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Matrix structure SETUP-level:
SCROLLING THROUGH SETUP-LEVEL
Selection of 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 sub-function. Additionally, each function is expressed with a keyword.
After selecting a sub-function, the next main function is selected by 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 select a value:
To change a value, use to select the digits and to increase that value.
To select a setting, both and can be used.
If the new value is invalid, 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 LEVEL
SETUP FUNCTIONS AND VARIABLES
1 TOTAL
A
11 UNIT L - m3 - kg - lb - GAL - USGAL - bbl - no unit
12 DECIMALS 0 - 1 - 2 - 3 (Ref: displayed value)
13 SPAN 0.000001 - 999,999 unit/second
14 DECIMALS SPAN 0 - 6
2 FLOWRATE
A
21 UNIT mL, L, m3, mg, g, kg, ton, GAL, bbl, lb, cf, rev, no unit, SCF, nm3, nL,
P
22 TIME UNIT sec - min - hour - day
23 DECIMALS 0 - 1 - 2 - 3 (Ref: displayed value)
24 SPAN 0.000001 - 999,999 unit/time-unit
25 DECIMALS SPAN 0 - 6
3 TOTAL B
31 SPAN 0.000001 - 999,999 unit/second
32 DECIMALS SPAN 0 - 6
4 FLOWRATE B
41 SPAN 0.000001 - 999,999 unit/second
42 DECIMALS SPAN 0 - 6
5 RATIO
51 RATIO b/a - b/a+b - b-a/a - b-a/b - b/a-b
52 FUNCTION 1:_ - percentage
53 DECIMALS RATIO 0 - 1 - 2 - 3 (Ref: displayed value)
54 FILTER 0 - 99
6 ALARM
61 FLOWZERO default - no relays - ignore
62 ALARM LOW-LOW 0000.000 - 9,999,999
63 ALARM LOW 0000.000 - 9,999,999
64 ALARM HIGH 0000.000 - 9,999,999
65 ALARM HIGH-HIGH 0000.000 - 9,999,999
66 DELAY ALARM low-low 0.1 - 999.9 seconds
67 DELAY ALARM LOW 0.1 - 999.9 seconds
68 DELAY ALARM HIGH 0.1 - 999.9 seconds
69 DELAY ALARM high-high 0.1 - 999.9 seconds
7 DISPLAY
71 FUNCTION disabled - rate - total - both
72 ALARMSET Operate - Setup – Hidden – Off
8 POWER MANAGEMENT
81 LCD UPDATE fast - 1 sec - 3 sec - 15 sec - 30 sec - off
82 BATTERY MODE operational - shelf
9 FLOWMETER A
91 FORMULA interpolation, square root
92 FILTER 00 - 99
93 CUT-OFF 0.0 - 99.9%
94 CALIBRATE LOW default - calibrate - calibrate set
95 CALIBRATE HIGH default - calibrate - calibrate set
A FLOWMETER B
A1 FORMULA interpolation, square root
A2 FILTER 00 - 99
A3 CUT-OFF 0.0 - 99.9%
A4 CALIBRATE LOW default - calibrate - calibrate set
A5 CALIBRATE HIGH default - calibrate - calibrate set
B ANALOG
B1 OUTPUT disable - enable
B2 OUTPUT SELECT ratio - flow A - flow B
B3 (0)4mA / 0V 0000.000 - 9,999,999
B4 20mA / 10V 0000.000 - 9,999,999
B5 TUNE MIN - 4mA / 0V 0 - 9,999
B6 TUNE MAX- 20mA / 10V 0 - 9,999

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C RELAYS
C1 RELAY 1 off, lo-lo, lo, hi, hi-hi, all
C2 RELAY 2 off, lo-lo, lo, hi, hi-hi, all
C3 RELAY 3 off, lo-lo, lo, hi, hi-hi, all
C4 RELAY 4 off, lo-lo, lo, hi, hi-hi, all
D COMMUNICATION
D1 SPEED / BAUDRATE 1200 - 2400 - 4800 - 9600
D2 ADDRESS 1 - 255
D3 MODE RTU - off
E OTHERS
E1 TYPE / MODEL F114-A
E2 SOFTWARE VERSION xx.xx.xx
E3 SERIAL NO. xxxxxxx
E4 PASSWORD 0000 - 9999
E5 TAGNUMBER 0000000 - 9999999
3.2.3. EXPLANATION OF SETUP-FUNCTIONS
1 - TOTAL A
With the exception of Span and decimal Span, all “Total settings” are valid for both flowmeters.
MEASUREMENT UNIT
11
SETUP - 11 determines the measurement unit for total, accumulated total
and pulse output. 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
12
The decimal point determines for total, accumulated total and pulse output
the number of digits following the decimal point.
The following can be selected:
0000000 - 111111.1 - 22222.22 - 3333.333
SPAN
13
With the span, the flowmeter signal is converted to a quantity. The span
for Total is determined on the basis of the measurement unit (setting 11)
and the flowrate per second at 20mA.
Enter the span in whole numbers (decimals are set with SETUP 14). The
more accurate the span, the more accurate the functioning of the system
will be.
Example 1: Calculating the span for Total.
Let us assume that the flowmeter generates 20mA at a flowrate
of 2,481.3 Liters/minute and the selected unit is "cubic meters /
m3".
The rate per second is 2,481.3÷60 is 41.355 L/sec. This is
0.041355 m3/sec., which is the span.
Enter for SETUP - 13: "041355" and for SETUP - 14 - decimals
span "6".
Example 2: Calculating the span for Total
Let us assume that the flowmeter generates 20mA at a rate of
652.31 USGAL per hour, the selected unit is barrels.
There are 42 gallons in one barrel; so the rate is 652.31/42 is
15.53119 barrels/hour. This is 0.0043142 barrels/second, which
is the span.
Enter for SETUP - 13: "004314" and for SETUP - 14 "6".

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DECIMALS SPAN
14
This setting determines the number of decimals for the Span
(SETUP 13). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this function influences the accuracy of the Span
indirectly.
This setting has NO influence on the displayed number of digits for total
(SETUP 12)!
2 - FLOWRATE A
The settings for total and flowrate are entirely separate. In this way, different units of measurement
can be used for each e.g. cubic meters for total and liters for flowrate.
The display update time for flowrate is one second or more.
With the exception of Span and decimal Span, all “Flowrate settings” are valid for both flowmeters.
MEASUREMENT UNIT
21
SETUP - 21 determines the measurement unit for flowrate.
The following units can be selected:
mL - L - m3 - mg - g - kg - ton - GAL - bbl - lb - cf - REV - no unit -
scf - Nm3 - NL - P.
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.
TIME UNIT
22
The flowrate can be calculated per second (SEC), minute (MIN), hour
(HR) or day (DAY).
DECIMALS
23
This setting determines for flowrate the number of digits following the
decimal point. The following can be selected:
00000 - 1111.1 - 2222.22 - 3333.333
SPAN
24
With the span, the flowmeter signal is converted to a quantity.
The span for flowrate is determined on the basis of the selected
measurement unit and time unit at 20mA.
Enter the span in whole numbers (decimals are set with SETUP 25).
The more accurate the span, the more accurate the functioning of the
system will be.
Example 1 Calculating the span for flowrate
Let us assume that the flowmeter generates 20mA at a
flowrate of 2,481.3 Liters/minute, the selected unit is
"Liters" and time unit "minute".
The span is 2481.3
Enter for SETUP - 24: "248130" and for SETUP - 25 -
decimals span "2".
Example 2 Calculating the span for flowrate
Let us assume that the flowmeter generates 20mA at a
rate of 652.31 USGAL per hour, the selected unit is USG
and the time unit is minute.
The span is 652.31 / 60 minutes is 10.87183 (GPM).
Enter for SETUP - 24: "108718" and for SETUP - 25 "4".
DECIMALS SPAN
25
This setting determines the number of decimals for Span
(SETUP 24). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this SETUP - influences the accuracy of the Span
indirectly.
This setting has NO influence on the displayed number of digits for
"flowrate" (SETUP 23)!

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3 - TOTAL B
SPAN
31
With the span, the flowmeter signal is converted to a quantity.
The span for Total is determined on the basis of the measurement unit
(setting 11) and the flowrate per second at 20mA.
Enter the span in whole numbers (decimals are set with SETUP 14).
The more accurate the span, the more accurate the functioning of the
system will be.
For examples: please read SETUP 13
DECIMALS SPAN
32
This setting determines the number of decimals for the Span
(SETUP 31). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this function influences the accuracy of the Span
indirectly.
This setting has NO influence on the displayed number of digits for total
(SETUP 12)!
4 - FLOWRATE B
SPAN
41
With the span, the flowmeter signal is converted to a quantity.
The span for flowrate is determined on the basis of the selected
measurement unit and time unit at 20mA (setup 21 and 22).
Enter the span in whole numbers (decimals are set with SETUP 42).
The more accurate the span, the more accurate the functioning of the
system will be.
For examples: please read SETUP 24.
DECIMALS SPAN
42
This setting determines the number of decimals for the Span
(SETUP 41). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
Please note that this SETUP - influences the accuracy of the Span
indirectly.

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5 - RATIO
FORMULA
51
The definition of the ratio displayed is set with this function. The ratio can
be expressed as:
1) the flowrate of the "additive flow" compared to the flowrate of the
"main flow", or as
2) the flowrate of the "additive flow" compared to the flowrate of the
"total flow"
Further, it is necessary to take the position of flowmeter "A" and flowmeter
"B" into account.With the K-factor, the flowmeter pulse signals are
converted to a flowrate.
DISPLAY RATIO
52
The ratio can be displayed as a percentage (PCT) or a ratio as 1-____.
This setting also influences the analog output refl. the ratio.
DECIMALS RATIO /
PERCENTAGE
53
The ratio or percentage will be displayed with maximum of five digits:
1 : xxxxx or 99999%.
If you have a ratio of 1:5 than two or three decimals might be required.
If you have a ratio of 1:1000, than you might prefer no decimals.
If you have a ratio of 2% than two or three decimals might be required.
If you have a ratio of 120%, than you might prefer no decimals.
FILTER
54
With this digital filter the calculated ratio between both flows can be
stabilized 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
calculated ratio (ten times a second) 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 there response times are indicated:
FILTER VALUE RESPONSE TIME ON STEP CHANGE.
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

HF114AEN_v0501_04
Page 18
6 - ALARM
With these settings, it is determined how the ratio will be.
Note: for alarm relay output functions: read SETUP A “relays”.
FLOW ZERO
61
When the flowrate of BOTH flows is zero, then it is possible to ignore or
disable the ratio monitoring. The following settings can be selected:
DEFAULT: in case of a low-ratio alarm and zero flow, it will switch the
alarm output and indicate the alarm on the display.
NO RELAY: in case of a low-ratio alarm and zero flow, it won't switch
the alarm output but will indicate the alarm on the display
only.
IGNORE: in case of a low-ratio alarm and zero flow, it won't switch
the alarm output and nothing will be indicated on the
display.
ALARM VALUE
LOW - LOW
62
The low-low alarm is set with this setting. An alarm will be generated as
long as the ratio lower as this.
With value 0.0 this function is disabled.
ALARM VALUE
LOW
63
The low alarm is set with this setting. An alarm will be generated as long
as the ratio lower as this.
With value 0.0 this function is disabled.
ALARM VALUE
HIGH
64
The high alarm is set with this setting. An alarm will be generated as long
as the ratio higher as this.
With value 0.0 this function is disabled.
ALARM VALUE
HIGH - HIGH
65
The high-high alarm is set with this setting. An alarm will be generated as
long as the ratio higher as this.
With value 0.0 this function is disabled.
DELAY TIME ALARM
LOW - LOW
66
An alarm generated by SETUP 32 “low-low” can be ignored during X-time
period. If the actual ratio is still incorrect after this delay time, then an
alarm will be generated.
DELAY TIME ALARM
LOW
67
An alarm generated by SETUP 33 “low” can be ignored during X-time
period. If the actual ratio is still incorrect after this delay time, then an
alarm will be generated.
DELAY TIME ALARM
HIGH
68
An alarm generated by SETUP 34 “high” can be ignored during X-time
period. If the actual ratio is still incorrect after this delay time, then an
alarm will be generated.
DELAY TIME ALARM
HIGH - HIGH
69
An alarm generated by SETUP 35 “high-high” can be ignored during X-
time period. If the actual ratio is still incorrect after this delay time, then an
alarm will be generated.
7 - DISPLAY
FUNCTION
71
Additionally to the ratio, the flowrate and a resettable totalizer of channel
A and channel B can be displayed. Following can be selected:
disabled: total and flowrate will not be displayed.
rate: only flowrate A and B will be displayed
total: only total A and B will be displayed.
both: all flowrates and totals will be displayed.
SET ALARM
72
Additionally to the ratio, it can be monitored with four ratio alarms.
Following can be selected:
off: ratio monitoring is switched-off and will not be displayed.
operator: the ratio alarm value will be display and can be changed by the
operator.
setup: the ratio alarm value will be display and can NOT be changed by
the operator but only on SETUP level.
hidden: the ratio alarm value will not be display and can NOT be changed
by the operator but only on SETUP level.

HF114AEN_v0501_04
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8 - POWER MANAGEMENT
When used with the internal battery option, the user can expect reliable measurement over a long
period of time. The F114-A has several smart power management functions to extend the battery life
time significantly. Two of these functions can be set:
LCD NEW
81
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; every pulse will be
counted 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 a coil pick-up, 1KHz. pulses and FAST
update: about 2 years.
battery life-time with a coil pick-up, 1KHz. pulses and 1 sec
update: about 5 years.
Note: after a button has been pressed by the operator - the display
refresh rate will always switch to FAST for 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
82
The unit has two modes: operational or shelf.
After "shelf" has been selected, the unit can be stored for several years; it
will not count pulses, the display is switched off but all settings and totals
are stored. In this mode, power consumption is extremely low.
To wake up the unit again, press the SELECT-key twice.

HF114AEN_v0501_04
Page 20
9 - FLOWMETER A
SIGNAL
91
The F114-A can process the 4-20mA signal in two ways:
Interpolation: the signal is processed linear
R = S x I
Square root: for differential pressure
R = S √I
where:
R = Rate: the calculated flowrate
S = Span: the maximum flowrate at 20mA. The span is programmed
with setting 24 for flowrate
and with setting 13 for total.
I = Input: the scaled analog value; in these formulas value 0 (zero)
for (0)4mA and value 1 (one)
for 20mA.
FILTER
92
The analog output signal of a flowmeter does mirror the actual flow. This
signal is measured several times a second by the F114-A. The value
measured is a "snap-shot" of the real flow 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 analog 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 there 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
Continued next page >>>