Fluidwell F112-a User manual

F112-A

FLOWRATE INDICATOR / TOTALIZER

WITH LINEARIZATION

Signal input flowmeter: (0)4-20mA

Signal outputs: 4-20mA ref. flowrate and pulse ref. total.

Options: Intrinsically safe, Modbus communication, external reset and

backlight.

F-Series - Field mounted indicators for safe and hazardous areas.

More info: www.fluidwell.com/fseries

FW_F112A_v1702_02_EN

Page 2

SAFETY INSTRUCTIONS

Any responsibility is lapsed if the instructions and procedures as described in this

manual are not followed.

LIFE SUPPORT APPLICATIONS: The F112-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 F112-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 F112-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 F112-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 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 F112-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 F112-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 F112-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 s[email protected].

Hardware version : 03.01.xx

Software version : 03.04.xx

Manual : FW_F112A_v1702_02_EN

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.

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 manual.................................................................................................................................. 3

Warranty and technical support............................................................................................................ 3

Contents manual................................................................................................................................... 4

1. Introduction.................................................................................................................... 5

1.1. System description ........................................................................................................ 5

2. Operational.................................................................................................................... 6

2.1. Control panel ................................................................................................................. 6

2.3. Operator information and functions............................................................................... 7

3. Configuration ................................................................................................................. 8

3.1. How to program the F112-A.......................................................................................... 8

3.1.1. Setup menu - Settings.................................................................................................10

3.1.2. Explanation of SETUP-menu 1 - Total ........................................................................11

3.1.3. Explanation of SETUP-menu 2 - Flow rate .................................................................11

3.1.4. Explanation of SETUP-menu 3 - Display ....................................................................12

3.1.5. Explanation of SETUP-menu 4 - Power management................................................ 12

3.1.6. Explanation of SETUP-menu 5 - Flowmeter ............................................................... 12

3.1.7. Explanation of Setup menu 6 - Linearize ....................................................................13

3.1.8. Explanation of SETUP menu 7 - Analog .....................................................................14

3.1.9 Explanation of SETUP menu 8 - Pulse .......................................................................15

3.1.10. Explanation of SETUP-menu 9 - Communication (option)....................................16

3.1.11. Explanation of SETUP-menu A - Others............................................................... 16

4. Installation.................................................................................................................... 17

4.1. General directions .......................................................................................................17

4.2. Installation / surrounding conditions............................................................................ 17

4.3. Dimensions- Enclosure................................................................................................ 18

4.4. Installing the hardware ................................................................................................20

4.4.1. General installation guidelines.....................................................................................20

4.4.2. Aluminum enclosure - Field mounted..........................................................................21

4.4.3. Aluminum enclosure - Panel mounted ........................................................................ 21

4.4.4. Plastic (GRP) enclosure .............................................................................................. 22

4.4.5. Terminal connectors....................................................................................................23

4.4.6. Sensor supply..............................................................................................................23

5. Intrinsically safe applications.......................................................................................29

5.1. General information and instructions........................................................................... 29

5.2. Terminal connectors Intrinsically safe applications..................................................... 31

5.3. Configuration examples Intrinsically safe applications................................................33

5.4 Battery replacement instructions................................................................................. 35

5.4.1. Safety instructions ....................................................................................................... 35

5.4.2. Replace the battery (hazardous area).........................................................................35

5.4.3. Disposal of batteries....................................................................................................35

6. Maintenance................................................................................................................ 36

6.1. General directions ....................................................................................................... 36

6.2. Repair.......................................................................................................................... 36

6.3. Repair policy................................................................................................................ 36

Appendix A: Technical specification ................................................................................................37

Appendix B: Problem solving...........................................................................................................40

Appendix C: Communication variables............................................................................................ 41

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 flow rate / totalizer model F112-A is a microprocessor driven instrument designed to display the

flow rate, the total and the accumulated total.

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),

ability to process all types of flowmeter signals;

transmitting possibilities with analog, pulse and communication outputs;

several mounting possibilities with GRP or aluminum enclosures for industrial surroundings.

Flowmeter input

This manual describes the unit with a (0)4-20mA input from the flowmeter. Other versions are

available to process pulse signals.

One flowmeter with a (0)4-20mA output can be connected to the F112-A. To power the sensor,

several options are available.

Standard outputs

Pulse output to transmit a pulse that represents a linearized totalized quantity as programmed.

Linear (0)4-20mA or 0-10V analog output to represent the actual flow rate as programmed. The

(0)4-20mA or 0-10V signal limits can be tuned.

Fig. 1: Typical application

Configuration

The F112-A is designed for use in many types of applications. For that reason, a setup menu is

available to program the F112-A according to your specific requirements.

The setup includes several important features, such as span, engineering units, signal selection,

power management (to extend battery life-time), etc. All settings are stored in a non-volatile memory

and therefore kept in the event of a power failure or an exhausted battery.

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.

A backup of the total and accumulated total in EEPROM memory is made every minute.

Options

The following options are available: isolated or active (0)4-20mA / 0-10V analog output, full Modbus

communication RS232/485/TTL (also battery powered), intrinsic safety, mechanical relay or active

output, power- and sensor-supply options, panel -mount, wall-mount and weather-proof enclosures,

flame proof enclosure and LED backlight.

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2. OPERATIONAL

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.

This chapter describes the daily use of the F112-A. This instruction is meant for users / operators.

2.1. CONTROL PANEL

The control panel has three keys. The available keys are:

Fig. 2: Control Panel

Functions of the keys

This key is used to program and save new values or settings.

The PROG/ENTER key is also used to gain access to the setup menu (read

chapter 3).

This key is used to select the accumulated total and the temperature.

The SELECT/key is also used to increase a value after the PROG/ENTER key has

been pressed (read chapter 3).

This key is used to reset the total.

The CLEAR/key is also used to select a digit or an option after the PROG/ENTER

key has been pressed (read chapter 3).

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2.3. OPERATOR INFORMATION AND FUNCTIONS

In general, the F112-A operates in the operator

mode. The shown information depends on the

settings which are made in the setup menu.

The signal from the connected sensor is processed

by the F112-A in the background, independent from

the selected display refresh rate.

Fig. 3: Process information (typical)

For the Operator, the following functions are available:

Display (linearized) flow rate / total or flow rate

This is the main display information of the F112-A . After the selection of any other information, it

will always return to this main display automatically. Total is shown on the upper line of the

display and flow rate on the bottom line. When selected in the setup menu, the display shows the

flow rate only. When you press the select key, the total shows momentarily.

Clear total

The value for total can be reset. To do so, press the CLEAR/key twice. When the key is

pressed once, the text "PUSH CLEAR" is shown. To avoid a reset at this stage, press another

key other than the CLEAR/key or wait for 20 seconds. A reset of the total does not influence

the accumulated total.

Type IB: When a Normally Closed (NC) contact is used, the local clear total function is

disabled and a clear total is only possible with the external reset command.

Display (linearized) accumulated total

When the SELECT/key is pressed, total and accumulated total are shown. The accumulated

total cannot be reset. The value will count up to 99,999,999,999. The unit and number of

decimals are shown according to the settings for the total.

Low-battery alarm

Only use original batteries. Original batteries can be ordered at the manufacturer.

The use of unapproved batteries will void the warranty.



At the end of the battery’s life-time, the

voltage starts to drop. When the voltage

becomes too low, the battery indicator comes

on. When the battery indicator is on, install a

new and fresh battery as soon as possible.

Fig. 4: Low-battery alarm (typical)

Alarm

When the alarm indicator is shown, refer to Appendix B: Problem Solving.

RUN

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3. CONFIGURATION

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 housing cover is

removed or the panel cabinet has been opened (danger from electrical shock). The

housing 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.

The setup menu is used to program the F112-A .

The setup menu is accessible at all times while the F112-A remains fully operational. Be aware that

in this case any change to the settings may have an influence on the operation.

It is possible to prevent access to the SETUP menu with a password. A password may be

required to enter the SETUP menu. Without this password, access to SETUP is denied.

3.1. HOW TO PROGRAM THE F112-A

The setup menu has different

submenus. Each submenu has an

unique number which is shown in

front of the menu name.

Each setting has an unique two-

digit number which is shown in

front of the setting. The first digit

refers to the submenu and the

second digit refers to the setting.

Note that sometimes the name of

the setting is shown on the upper

line of the display.

How to enter the setup menu

When the setup menu is protected by a password, the F112-A asks for a password to access the

setup menu. When in the operator mode, press and hold the PROG/ENTER key for 7 seconds to

access the setup menu.

How to navigate in the setup menu

The setup menu has different submenus to program the F112-A . For navigation, the submenus

and the settings are identified with numbers (for the submenu: e.g. 1; for the setting: e.g. 12.).

The CLEAR/► key and the PROG/ENTER key are used for navigation. The explanation

assumes that you are in the submenu TOTAL.

Action

Result

Remark

Press the CLEAR/► key

to select the next

submenu.

The submenu FLOW

RATE shows

Press again to go to the

next submenu.

The submenu DISPLAY

shows.

Momentarily, press the

PROG/ENTER key to

select the previous

submenu.

The submenu FLOW

RATE shows

The PROG/ENTER key is

used as a ◄key.

Press again to go to the

previous submenu.

The submenu TOTAL

shows

The PROG/ENTER key is

used as a ◄key.

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The SELECT/▲ key and the CLEAR/► key are used for navigation.

The explanation assumes that you are in the submenu TOTAL. When you are:

in the first setting and you navigate to the previous setting, the F112-A goes back to the related

main menu.

in the last setting and you navigate to the next setting, the F112-A goes to the related main

menu.

Action

Result

Remark

Press the SELECT/▲

key to select the first

setting.

The setting UNIT shows.

Press the SELECT/▲

key again to go to the

next setting.

The setting DECIMALS

shows.

Press the CLEAR/► key

to select the previous

setting.

The setting UNIT shows.

Press the CLEAR/►key

again to go to the

previous setting.

The submenu TOTAL

shows

This is normal behavior

because the setting UNIT is

the first setting of the

submenu TOTAL.

How to make a setting

Changes are only saved when you press the PROG/ENTER key.

The explanation assumes that you are in the submenu TOTAL and the setting UNIT. When you do

not want to save the change, wait for approximately 20 seconds or press and hold the

PROG/ENTER key for approximately 3 seconds.

Action

Result

Remark

Momentarily, press the

PROG/ENTER key.

The PROG indicator blinks.

The engineering unit L shows.

To access the setting.

Press the SELECT/▲ key

to select the next

engineering unit.

The PROG indicator blinks.

The engineering unit m3shows.

If you wait too long, the

program mode goes off and

changes are not saved, this

is normal behavior.

Press the SELECT/▲ key

to select the next

engineering unit.

The PROG indicator blinks.

The engineering unit US GAL

shows.

Press the CLEAR/► key

to select the previous

engineering unit

The PROG indicator blinks.

The engineering unit m3shows.

To confirm the changes:

Momentarily, press the

PROG/ENTER key.

The PROG indicator goes off.

The change is saved.

The engineering unit m3shows.

If you do not press the

PROG/ENTER key to

confirm, your selection is not

saved.

To discard the changes:

Press and hold the

PROG/ENTER key for

approximately 3 seconds.

The PROG indicator goes off.

The change is discarded.

The engineering unit L shows.

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3.1.1. SETUP MENU - SETTINGS

TOTAL

unit

L; m3; kg; lb; GAL; USGAL; bbl; no unit

decimals

0000000; 111111.1; 22222.22; 3333.333

span

0.000001 - 999,999

decs span

0 - 6

FLOWRATE

unit

mL; L; m3; mg; g; kg; ton; gal; bbl; lb; cf; rev; - - - - (no unit);

scf; nm3; nL; p

time

/sec; /min; /hour; /day

decimals

0000000; 111111.1; 22222.22; 3333.333

span

0.000001 - 999,999

decs span

0 - 6

DISPLAY

function

total; rate

light

0% (off); 20%; 40%; 60%;- 80%; 100% (full brightness)

POWER MANAGEMENT

LCD new

fast; 1 sec; 3 sec; 15 sec; 30 sec; off

battmode

operational; shelf

FLOWMETER

formula

interpolation; square root

filter

01 - 99

cut-off

0.0 - 99.9%

calib-lo

default; calibrate; calibrate set

calib-hi

default; calibrate; calibrate set

LINEARIZATION

% / M-FACTOR 1

0.01% –99.99% / 0 –9.999999

% / M-FACTOR 2

0.01% –99.99% / 0 –9.999999



% / M-FACTOR 15

0.01% –99.99% / 0 –9.999999

linearization

enable; disable

ANALOG

output

disable; enable

rate-min

000.000 - 999999

rate-max

000.000 - 999999

cut-off

0.0 - 9.9%

tune-min

0 - 9999

tune-max

0 - 9999

filter

01 - 99

PULSE

width

0.001 - 9.999

decimals

0000000; 111111.1; 22222.22; 3333.333

amount

0.001 - 9999999

COMMUNICATION

speed

1200; 2400; 4800; 9600; 9600HP; 19200; 38400

address

1 –247

mode

bus-rtu; bus-asc; off

databits

8 bits; 7 bits

parity

none; even; odd

OTHERS

model

F112-A

software version

nn:nn:nn

serial no.

nnnnnnn

password

0000 - 9999

tag-nr

0000000 - 9999999

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3.1.2. EXPLANATION OF SETUP-MENU 1 - TOTAL

UNIT

This setting is used to select the engineering unit for the indication of the total, the

accumulated total and the pulse output.

When you change the engineering unit , you must recalculate and reprogram the

span for the (accumulated) total. When you recalculate and reprogram the span, the

history for (accumulated) total is not correct anymore, because the (accumulated)

total is not recalculated. For future reference, best practice is to make a note of the

accumulated total before you program the recalculated span.

DECIMALS

This setting is used to set the amount of digits behind the decimal point for the

(accumulated) total indication.

SPAN

This setting is used to set the span for the total. With the span, the

flowmeter signal is converted to a quantity. The span for Total is based on

the engineering unit (SETUP 11) and the flow rate per second at 20mA

(or max signal). Enter the span with the decimals (decimals are not shown

yet and are set in SETUP 14). The more accurate the span, the more

accurate the functioning of the system will be.

0BExample 1: Calculating the Span.

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 the span: "004314" and for the span decimals "6".

0BExample 2: Calculating the Span.

Assume that the flowmeter generates 20mA at a flow rate of 2,481.3 Liters/minute

and the selected unit is "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 the span: "041355" and for the span decimals "6".

When you recalculate and enter a new span, the history for

(accumulated) total is not correct anymore, because the

(accumulated) total is not recalculated. for future reference. Best

practice is to make a note of the accumulated total before you enter

the recalculated span.

DECS SPAN

This setting is used to set the amount of digits behind the decimal point for the

span.

3.1.3. EXPLANATION OF SETUP-MENU 2 - FLOW RATE

The settings for total and flow rate are entirely separate. In this way, different engineering units can

be used for each e.g. cubic meters for total and liters for flow rate.

UNIT

This setting is used to select the engineering unit for the indication of the flow rate.

Alteration of the engineering unit will have consequences for

operator and setup values, they will not be automatically recalculated

to the value of the new selected unit. The span has to be adapted as

well; the calculation is not done automatically.

TIME

This setting is used to set the time unit for the flow rate calculation. Note that the

flow rate is given in engineering unit/time unit, e.g. liters/minute (l/min).

When you change this setting, also recalculate and change the settings for

the analog rate-min and analog rate-max.

DECIMALS

This setting is used to set the amount of digits behind the decimal point for the flow

rate indication.

SPAN

This setting is used to set the span for the total. With the span, the

flowmeter signal is converted to a quantity. The span for Total is based on

the engineering unit (SETUP 21) and the flow rate per second at 20mA (or

max signal). Enter the span with the decimals (decimals are not shown yet

and are set in SETUP 25). The more accurate the span, the more accurate

the functioning of the system will be.

DECS SPAN

This setting is used to set the amount of digits behind the decimal point for the

span.

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Page 12

3.1.4. EXPLANATION OF SETUP-MENU 3 - DISPLAY

FUNCTION

This setting can be set to display (linearized) total or (linearized) rate.

When 'total' is selected, simultaneously, total is shown with the large

digits and flow rate with the smaller digits. When SELECT is pressed,

the accumulated total is shown temporarily.

When 'rate' is selected, only flow rate will be shown with the large

digits together with its measuring unit. When SELECT is pressed, the

total and the accumulated total are shown temporarily.

LIGHT

The backlight brightness can be adjusted from 0% (off) to 100% (full

brightness) in steps of 20%.

When the F112-A is only loop powered, the backlight is disabled. An

external power supply is required to supply the backlight.

3.1.5. EXPLANATION OF SETUP-MENU 4 - POWER MANAGEMENT

When used with the internal battery option (type PB/PC), the user can expect reliable measurement

over a long period of time. The F112-A has several smart power management functions to extend

the battery life time significantly. Two of these functions can be set.

LCD NEW

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 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.

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.

Example battery life-time with a coil pick-up:

FAST update: about 2 years;

1 sec update: about 5 years.

BATTERY MODE

The F112-A has two modes: operational or shelf.

After "shelf" has been selected, the F112-A can be stored for several years; it will

not process the sensor signal; the display is switched off but all settings and totals

are stored. In this mode, power consumption is extremely low.

To wake up the F112-A again, press the SELECT/key two times.

3.1.6. EXPLANATION OF SETUP-MENU 5 - FLOWMETER

FORMULA

The F112-A can process the (0)4-20mA signal in two ways:

Interpolation or Square root:

Interpolation: the signal is processed linear: R = S x I

Square root: for differential pressure: R = S √I

where:

R= Rate: the calculated flow rate

S= Span: the maximum flow rate at 20mA. The span is programmed with

setting 24 for flow rate 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

The analog output signal of a sensor represents the actual temperature.

This signal is measured several times a second. The value measured is a

"snap-shot" of the real temperature 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.

CUT-OFF

To ignore e.g. leakage of the flow or vibration, a low-flow cut-off can be

set as percentage over the full range of 16mA (or 20mA / 10V). When the

analog value is less than the programmed percentage, with this setting,

the flow rate will be set to zero. The cut-off value can be programmed is

the range 0.0 - 99.9%.

EXAMPLE:

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FUNCTION

(SETUP

51)

SPAN

(SETUP

13/24)

REQUIRED

CUT-OFF

(SETUP 53)

REQUIRED OUTPUT

interpolation

450 L/min

25 L/min

25/450 x 100%=5.5%

16mA x 5.5% + 4mA = 4.88mA

square root

450 L/min

25 L/min

(25/450)2 x 100%=0.3%

16mA x 0.3% + 4mA = 4.05mA

CALIB-LO

This setting is used to calibrate the input value for (0)4mA as the signal

from the flowmeter might not be exact 4.0 mA (or 0.0 mA) at flow rate

zero. This function will measure the real output value at flow zero.

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:

CALIB: with this setting, 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.

DEFAULT: with this setting, the manufactures value is re-installed.

CAL SET: to select the last calibrated value.

CALIB-HI

This setting is used to calibrate the input value for 20mA as the signal

from the flowmeter might not be exact 20.0 mA at maximum flow rate.

This function will measure the real output value at maximum flow rate.

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:

CALIB: with this setting, the input will be calibrated with the actual

"20mA" value. After pressing enter, CAL SET will be shown as soon

as the calibration is completed. From that moment, the analog value

must be less 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.

3.1.7. EXPLANATION OF SETUP MENU 6 - LINEARIZE

The linearization function is available to approach the real flow curve better as with the general

K-Factor (KF0). This to obtain a more accurate flow rate, total and accumulated total as well as the

analog and pulse output at any flowmeter frequency. A maximum of 15 linearization-positions can be

entered while the interpolation will calculate any other position in-between.

For each linearization position, the percentage of the signal and a Meter Factor (MF) must be

entered. The lowest percentage and MF you enter will be valid from (0)4mA. The highest percentage

and MF will be valid till 20mA. 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 calculation and the method of

linearization:

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FREQUENCY /

M-FACTOR

61 TO 6F

The percentage is shown at the bottom line of the display.

With value 0%, the M-Factor is disabled. The M-Factor (MF) is shown at the

top-line of the display. The minimum value to be entered is 0.000001 and the

maximum value is 9.999999.

The MF is mostly a figure around 1.000000, like 0.945354 or 1.132573 and

always has six decimals, but the decimal separator is not shown.

LINEARIZE

This setting is used to enable or disable the linearization function.

3.1.8. EXPLANATION OF SETUP MENU 7 - ANALOG

A linear 4-20mA signal (option AB: 0-20mA or option AU: 0-10V) output signal is generated that represents the flow rate.

The settings for the flow rate influence the analog output directly. The relationship between the flow

rate and the analog output is set with the following settings.

OUTPUT

If the analog output is not used, select disable to minimize the power

consumption (e.g. save battery life-time).

Option AP: When a power supply is available but the output is disabled, a

3.5mA signal will be generated.

RATE-MIN

Enter here the flow rate at which the output should generate the minimum

signal (0)4mA or 0V - in most applications at zero flow. The number of

decimals shown depend upon setup 23. The engineering units/time (e.g.

L/min) are dependent upon setup 21 and 22.

RATE-MAX

Enter here the flow rate at which the output should generate the maximum

signal (20mA or 10V) - in most applications at maximum flow. The number

of decimals shown depend upon setup 23. The engineering units/time

(e.g. L/min) are dependent upon setup 21 and 22.

CUT-OFF

To ignore leakage of the flow for example, a low flow cut-off can be set as

a percentage of the full range of 16mA, 20mA or 10V.

When the flow is less than the required rate, the current will be the

minimum signal (0)4mA or 0V.

Example: Calculate the cut-off.

Rate-min: 0L/min [4mA], Rate-max: 100 L/min [16mA], Cut-off: 2%

Required rate [L/min]: (rate-max - rate-min)*cut-off: (100-0)*2%=2.0L/min

Output [mA]: rate-min + (rate-max*cut-off): 4+(16*2%)=4.32mA

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TUNE-MIN

The (0)4mA or 0V value can be tuned precisely with this setting. The

initial minimum analog output value is (0)4mA or 0V. However, this value

might differ slightly due to ambient influences such as temperature for

example.

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 (0mA or 0V). 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)4mA or 0V represents the maximum flow rate and the 20mA or 10V

represents the minimum flow rate.

TUNE-MAX

The 20mA or 10V value can be tuned precisely with this setting. The initial

maximum analog output value is 20mA or 10V However, this value might

differ slightly due to ambient influences such as temperature for example.

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 or 10V. 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)4mA or 0V represents the maximum flow rate and the 20mA or 10V

represents the minimum flow rate.

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 flow rate

can be obtained.

The filter principal is based on three input values: the filter level (01-99),

the last calculated flow rate 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.

TIME IN SECONDS

INFLUENCE

50%

75%

90%

99%

filter disabled

0.1 sec

0.2 sec

0.4 sec

0.7 sec

0.2 sec

0.4 sec

0.6 sec

1.2 sec

0.4 sec

0.7 sec

1.1 sec

2.1 sec

0.7 sec

1.4 sec

2.2 sec

4.4 sec

1.4 sec

2.8 sec

4.5 sec

9.0 sec

2.1 sec

4 sec

7 sec

14 sec

3.5 sec

7 sec

11 sec

23 sec

5.2 sec

10 sec

17 sec

34 sec

6.9 sec

14 sec

23 sec

45 sec

3.1.9 EXPLANATION OF SETUP MENU 8 - PULSE

One transistor or mechanic relay output is available as a scaled pulse output according to the total.

WIDTH

The pulse width determines the time that the output will be active; in other

words the pulse duration. Value “zero” will disable the pulse output.

The pulse signal always has a 50% duty cycle, hence the minimum time

between the pulses is equal to the pulse width setting. If the frequency

should go out of range –when the flow rate increases for example –an

internal buffer will be used to “store the missed pulses”: As soon as the

flow rate slows down, the buffer will be “emptied”.

It might be that pulses will be missed due to a buffer-overflow, so it is

advised to program this setting within its range!

DECIMALS

This setting is used to set the amount of digits behind the decimal point for the

amount.

AMOUNT

A pulse will be generated every time a certain quantity is added to the

total. Enter this quantity here while taking the decimals for pulse into

account.

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3.1.10. EXPLANATION OF SETUP-MENU 9 - COMMUNICATION (OPTION)

This product is designed for the connection to a communication network. Products with a

communication option do not include cyber security functions. Fluidwell cannot take any

responsibility for the cyber security, omissions or errors in the communication safety. To maintain a

secure operation, automation and control, it is the sole responsibility of the owner to install and

manage the appropriate safety measures to protect the network, the product and the communication

against any kind of security breaches.

The functions described below deal with hardware that is not part of the standard delivery.

Programming of these functions does not have any effect if this hardware has not been installed.

Consult Appendix C and the Modbus communication protocol description for a detailed explanation.

SPEED

This setting is used to set the Baudrate.

9600 is a low power setting, 9600HP is a high power setting (Modbus compliant).

ADDRESS

This setting is used to set the communication address for the F112-A.

MODE

This setting is used to set the Modbus transmission mode. Select OFF to disable

the communication.

DATABITS

This setting determines for communication the number of data bits.

Select 8 bit for BUS-RTU and 7 bits for BUS-ASC.

PARITY

As demanded by the connected equipment, select a parity bit (odd, even or none).

3.1.11. EXPLANATION OF SETUP-MENU A - OTHERS

For support and maintenance it is important to have information about the characteristics of the F112-A. Your

supplier will ask for this information when support is required.

MODEL

This setting shows the model name.

SOFTWARE VERSION

This setting shows the version number of the firmware (software).

SERIAL NO

This setting shows the serial number.

PASSWORD

This setting is used to set a password (pin code) to limit the access for the

setup menu. Only persons who know the pin code can access the setup

menu. The pin code 0000 disables the pin code to allow for access by any

person.

TAG-NR

This setting is used to set a tag number for the F112-A .

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4. INSTALLATION

4.1. General directions