Fluidwell F126-EL Owner's manual

F126-P-EL-TP

FLOW COMPUTER

with temperature compensation for corrected liquid volume

Signal input flowmeter: pulse, Namur and coil

Signal input temperature: Pt100, 2 or 3- wire

Signal outputs: (0)4-20mA / 0-10V ref. corrected flow rate and pulse ref.

total

Options: Intrinsically safe, Modbus communication and backlight

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

More info: www.fluidwell.com/fseries

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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 F126-P-EL-TP 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 F126-P-EL-TP, the installer has to discharge himself by touching a well-

grounded object.

• The F126-P-EL-TP must be installed in accordance with the EMC guidelines (Electro

Magnetic Compatibility).

• Connect a proper grounding to the metal enclosure as indicated if the F126-P-EL-TP has

an incoming power or signal line which carries a hazardous live voltage.

The Protective Earth (PE) wire may never be disconnected or removed.

• Intrinsically Safe applications: follow the instructions as mentioned in Chapter 5.

Certificates and related documents are available on our website or from your distributor.

DISPOSAL OF ELECTRONIC WASTE

• The WEEE Directive requires the recycling of disposed electrical and electronic

equipment in the European Union. When the WEEE Directive does not apply to your

region, we support its policy and ask you to be aware on how to dispose of this product.

• The crossed out wheelie bin symbol as illustrated and found on our products tells that

this product shall not be disposed of into the general waste system or into a landfill.

• At the end of its life, equipment shall be disposed of according to the local regulations

regarding waste of the electrical and the electronic equipment.

• 

helpdesk for information on the product disposal.

SAFETY RULES AND PRECAUTIONARY MEASURES

• The manufacturer accepts no responsibility whatsoever if the following safety rules and

precautions, instructions and the procedures as described in this manual are not

followed.

• Modifications of the F126-P-EL-TP 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

F126-P-EL-TP.

• Check all connections, settings and technical specifications of the various peripheral

devices with the F126-P-EL-TP supplied.

• Open the enclosure only if all leads are free of potential.

• Never touch the electronic components (ESD sensitivity).

• Never expose the system to heavier conditions than allowed according to the

classification of the enclosure (see manufacture's plate and chapter 4.2.).

• If the operator detects errors or dangers, or disagrees with the safety precautions taken,

he should inform the owner or principal responsible.

• The local labor and safety laws and regulations must be adhered to.

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ABOUT THE MANUAL

This manual is divided into two main sections:

▪ The daily use of the unit is described in chapter 2 "Operation". These instructions are meant for

users.

▪ The following chapters and appendices are exclusively meant for electricians/technicians. These

provide a detailed description of all software settings and hardware installation guidance.

This manual describes the standard unit as well as the available options. For additional information,

please contact your supplier.

A hazardous situation may occur if the F126-P-EL-TP is not used for the purpose it was

designed for or is used incorrectly. Please carefully note the information in this manual

indicated by the pictograms:

A "warning !" indicates actions or procedures which, if not performed correctly, may lead to

personal injury, a safety hazard or damage of the F126-P-EL-TP or connected instruments.

A "caution !" indicates actions or procedures which, if not performed correctly, may lead to

personal injury or incorrect functioning of the F126-P-EL-TP or connected instruments.

A "note !" indicates actions or procedures which, if not performed correctly, may indirectly

affect operation or may lead to an instrument response which is not planned.

WARRANTY AND TECHNICAL SUPPORT

For warranty and technical support for your products, please contact your supplier, visit our internet

site www.fluidwell.com or contact us at support@fluidwell.com.

Hardware version : 03.01.xx

Software version : 03.03.xx

Manual : FW_F126-P-EL-TP_M_v2201-01_EN.docx

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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TABLE OF CONTENTS 
SAFETY INSTRUCTIONS.................................................................................................................... 2 
DISPOSAL OF ELECTRONIC WASTE ............................................................................................... 2 
SAFETY RULES AND PRECAUTIONARY MEASURES ................................................................... 2 
ABOUT THE MANUAL ........................................................................................................................ 3 
WARRANTY AND TECHNICAL SUPPORT ........................................................................................ 3 
TABLE OF CONTENTS ....................................................................................................................... 4 
INTRODUCTION ........................................................................................................................ 6 
1 System description ........................................................................................................... 6 
OPERATIONAL ......................................................................................................................... 8 
1 General information .......................................................................................................... 8 
2 Control panel .................................................................................................................... 8 
3 Operator information and functions .................................................................................. 8 
CONFIGURATION ................................................................................................................... 10 
1 Introduction ..................................................................................................................... 10 
2 Programming SETUP-level ............................................................................................ 10 
2.1 Entering SETUP-level ........................................................................................ 10 
2.2 Navigating through SETUP-level ....................................................................... 10 
2.3 Programming sequence ..................................................................................... 11 
2.4 Returning to OPERATOR-level .......................................................................... 12 
3 Configuration settings .................................................................................................... 12 
3.1 Setup menu - Settings........................................................................................ 12 
3.2 Menu 1 - Total .................................................................................................... 13 
3.3 Menu 2 - Flow rate ............................................................................................. 13 
3.4 Menu 3 - Display ................................................................................................ 14 
3.5 Menu 4 - Power management ............................................................................ 14 
3.6 Menu 5 - Flowmeter ........................................................................................... 15 
3.7 Menu 6  Temperature....................................................................................... 15 
3.8 Menu 7  Formula .............................................................................................. 16 
3.9 Menu 8 - Analog output ...................................................................................... 16 
3.10 Menu 9 - Pulse output ...................................................................................... 17 
3.11 Menu A - Communication (option) ................................................................... 18 
3.12 Menu B - Others ............................................................................................... 18 
INSTALLATION ....................................................................................................................... 19 
1 General directions .......................................................................................................... 19 
2 Installation - surrounding conditions .............................................................................. 19 
3 Handling the F-Series Enclosure ................................................................................... 20 
3.1 Identification ....................................................................................................... 20 
3.2 Opening / removing the cover ............................................................................ 21 
3.3 Closing / replacing the cover .............................................................................. 21 
4 Mechanical installation ................................................................................................... 22 
4.1 Dimensions  Aluminum and stainless steel enclosures ................................... 22 
4.2 Dimensions  Non-metallic enclosures .............................................................. 23 
4.3 Mounting ............................................................................................................ 24 
5 Electrical installation ....................................................................................................... 25 
5.1 Electrical safety .................................................................................................. 25 
5.2 Protective Earth (PE) connections ..................................................................... 25 
5.3 Field wiring connections ..................................................................................... 26 
5.4 Power supply wiring ........................................................................................... 26 
5.5 Sensor supply .................................................................................................... 27 
6 Terminal connectors safe area applications  Type XX / XF ......................................... 28 
6.1 Terminal 00-02: Power supply ........................................................................... 28 
6.2 Terminal 05-06: Scaled pulse output R1............................................................ 29 
6.3 Terminal 07-08: Analog output ........................................................................... 30 
6.4 Terminal 09-11: Flowmeter input ....................................................................... 31 
6.5 Terminal 20-22: Pt100 input ............................................................................... 33 
6.6 Terminal 26-31: Type CB / CH / CI - Communication  (option) ......................... 34 
INTRINSICALLY SAFE APPLICATIONS ............................................................................... 35 
1 Identification ................................................................................................................... 35 
2 Electrical installation in hazardous area ......................................................................... 36 

 
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5.2.1 General information and instructions .................................................................. 36 
5.2.2 Installations based on ATEX or IECEx certificate .............................................. 37 
5.2.3 Electrical data  Annex 1 .................................................................................... 38 
5.2.4 Power supply wiring ............................................................................................ 40 
5.2.5 Sensor supply ..................................................................................................... 40 
5.3 Terminal connectors Intrinsically Safe applications  Type XI ....................................... 41 
5.3.1 Terminal 26-29: Type CT - Communication ....................................................... 41 
5.4 Configuration examples Intrinsically safe applications ................................................... 42 
6 MAINTENANCE ........................................................................................................................ 44 
6.1 General directions ........................................................................................................... 44 
6.2 Instructions for repair ...................................................................................................... 44 
6.3 Battery replacement instructions .................................................................................... 45 
6.3.1 Safety instructions .............................................................................................. 45 
6.3.2 Replace the battery ............................................................................................. 46 
6.3.3 Disposal of batteries ........................................................................................... 46 
APPENDIX A TECHNICAL SPECIFICATION ................................................................................. 47 
APPENDIX B PROBLEM SOLVING ............................................................................................... 51 
APPENDIX C COMMUNICATION VARIABLES ............................................................................. 52 
APPENDIX D DECLARATION OF CONFORMITY ......................................................................... 55 
INDEX OF THIS MANUAL.................................................................................................................. 56 
LIST OF FIGURES IN THIS MANUAL ............................................................................................... 57 
 

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1 INTRODUCTION

1.1 SYSTEM DESCRIPTION

Functions and features

The flow rate / totalizer model F126-P-EL-TP is a microprocessor driven instrument for the

calculation of standard volumetric flow or mass flow for liquid applications using flow equations.

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 flowmeter signals

▪ transmitting possibilities with analog / pulse and communication outputs.

Flowmeter and temperature sensor input

This manual describes the unit with a passive or active pulse, Namur or sine wave (coil) signal input

from the flowmeter. The temperature is input from a Pt100 sensor.

To power the flow meter, several options are available.

Standard outputs

▪ Pulse output to transmit a pulse that represents a 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

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Configuration of the unit

The F126-P-EL-TP is designed for use in many types of applications. For that reason, a setup menu

is available to program the F126-P-EL-TP according to your specific requirements.

The setup includes several important features, such as K-Factors, engineering units, signal

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

volatile memory and therefore saved 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

2.1 GENERAL INFORMATION

This chapter describes the daily use of the F126-P-EL-TP. This instruction is meant for users /

operators.

• This device may only be operated by persons who are authorized and trained by the

operator of the facility. All instructions in this manual are to be observed.

• Take careful notice of the "Safety rules, instructions and precautionary measures" in the

front of this manual.

2.2 CONTROL PANEL

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

Fig. 2: Control panel.

Functions of the keys

PROG-key

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

The PROG-key is also used to gain access to SETUP-level; please read chapter 3.

SELECT-key

This key is used to SELECT the displayed information, like accumulated total and flow

rate.

CLEAR-key

This key is used to CLEAR the value of total.

2.3 OPERATOR INFORMATION AND FUNCTIONS

In general, the F126-P-EL-TP will always function at Operator level. The information displayed is

dependent upon the SETUP-settings. The signal from the connected sensor is processed by the

F126-P-EL-TP 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.

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For the Operator, the following functions are available:

▪ Display compensated flow rate and/or compensated total

This is the main display information of the F126-P-EL-TP. 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.

When "-------" is shown, then the flow rate value is too high to be shown. The arrows  indicate

the increase/decrease of the flow rate trend.

▪ 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.

▪ Display accumulated compensated 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.

▪ Display line temperature

When the SELECT/ key is pressed two times, the actual temperature is shown.

▪ Range error

As soon as the input value is out of the calibrated PT100 measurement range, the alarm indicator

shows. When the SELECT/ key is pressed a few times, the alarm code is shown in the alarm

display. This alarm is also activated at a wire break or faulty sensor.

Standard range for Pt100 is -100°C - +200°C, extended range ( type ZV) is -200° - +800°C.

▪ Low-battery alarm

When the battery voltage drops, the "low-battery" icon will be displayed continuously. The battery

MUST be replaced shortly after!

The remaining lifetime after the first moment of indication is generally several days up to some

weeks. See paragraph 6.3 for further information on battery replacement.

Fig. 4: Example of low-battery alarm.

▪ Alarm

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

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3 CONFIGURATION

3.1 INTRODUCTION

This and the following chapters are exclusively meant for electricians and non-operators. In these,

an extensive description of all software settings and hardware connections are provided.

• Mounting, electrical installation, start-up and maintenance of this device may only be

carried out by trained persons authorized by the operator of the facility. Persons must

read and understand this manual before carrying out its instructions.

• This device may only be operated by persons who are authorized and trained by the

operator of the facility. All instructions in this manual are to be observed.

• Make sure, the measuring system is correctly wired up according to the wiring diagrams.

Protection against accidental contact is no longer assured when the enclosure cover is

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

enclosure may only be opened by trained persons authorized by the operator of the

facility.

• Take careful notice of the "Safety rules, instructions and precautionary measures" in the

front of this manual.

3.2 PROGRAMMING SETUP-LEVEL

Changing the settings of the F126-P-EL-TP may have an influence on the current operation

of the device, even when SETUP-level is still active.

Make sure that the unit is not being used for any application when altering the settings.

3.2.1 ENTERING SETUP-LEVEL

Configuration of the F126-P-EL-TP is done at SETUP-level, which can be reached at all times while

the F126-P-EL-TP remains fully operational. At SETUP-level the display will deactivate the RUN

indicator and activate the SETUP indicator.

Use the control panel to access SETUP-level

PROG-key

To enter SETUP-level, press the PROG-key for 7 seconds at OPERATOR-level.

During this time, the symbols  will be displayed.

When SETUP-level is entered, a password might be required to continue. You can

enter the password by following the procedure for programming values as described in

the following paragraphs.

A password may be required to enter SETUP.

Without this password access to SETUP is denied.

3.2.2 NAVIGATING THROUGH SETUP-LEVEL

Each function has a unique menu-number, which is displayed below the SETUP indicator at the

bottom of the display. The menu-number is a combination of two figures, e.g. 1.2. The first number

indicates the function-group and the second number indicates the function. Additionally, each

function and function-group is expressed with a keyword.

Fig. 5: SETUP matrix structure

1.1

1.2

2.1.

2.1

1.3

2.2

3.1

3.

FUNCTION GROUP

FUNCTION

FW-4100-000001-001-EN

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Use the control panel to navigate through SETUP-level

PROG-key

When a function is selected, this key is used to start the programming sequence.

When only a function group is selected (and no function), this key is used to scroll back

a function group (e.g. 3 → 2 → 1 → 3).

SELECT-key

This key is used to select the next function in the list (e.g. 1 → 1.1 → 1.2 → 1). When

the top of the list is reached, it will wrap around and return to the function group

selection.

CLEAR-key

This key is used to select the previous function in the list (e.g. 1.2 → 1.1 → 1 → 2).

When the bottom of the list is reached, it will return to the function group selection.

When only a function group is selected (and no function), this key is used to scroll to

the next function group. (e.g. 1 → 2 → 3 → 1).

3.2.3 PROGRAMMING SEQUENCE

After selecting a function at SETUP-level, a new value can be programmed using the control panel.

A function either contains a value (a number with optionally a decimal point, e.g. 123.45) or a list

with items (e.g. Disable  Enable).

For each function that needs to change, navigate to that function and follow the steps indicated

below. During the programming sequence, the display will deactivate the SETUP indicator and

activate the PROGRAM indicator.

When programming new values, alterations will only be set after the PROG-key has been

pressed to confirm the new value! (STEP 3)

Step 1: Starting the programming sequence

PROG-key

When a function is selected at SETUP-level, this key is used to start the programming

sequence.

Step 2a: Changing a value

SELECT-key

This key is used to increment the selected digit.

When the entered value is out of range, the increase sign  or decrease-sign  will

be displayed while you are programming. If this value is confirmed by pressing the

PROG-key, the value will be brought within a valid range automatically.

CLEAR-key

This key is used to select the next digit. If a decimal point can be set, this will be

included in the sequence as well (e.g. [decimal point] → digit 1 → digit 2→ digit 3 →

[decimal point].

SELECT-key + CLEAR-key

The combination of the SELECT-key and CLEAR-key is used to select a negative

value. When a value can also be entered as a negative number, pressing the SELECT-

key and CLEAR-

Step 2b: Changing the selected item in a list

SELECT-key

This key is used to select the next item in the list (e.g. Disable → Enable).

At the end of the list, the selection will wrap around to the first selection.

CLEAR-key

This key is used to select the previous item in the list (e.g. Enable → Disable ).

At the bottom of the list, the selection will wrap around to the last selection.

Step 3: Finishing the programming sequence

PROG-key

During the programming sequence, this key is used to confirm the new value and

return to SETUP-level. To cancel the operation, either press the PROG-key for 3

seconds or wait for 20 seconds: the programming sequence is cancelled and the

former value is reinstated.

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3.2.4 RETURNING TO OPERATOR-LEVEL

When all settings are configured correctly, the unit can be returned to OPERATE-level.

Please keep a record of all settings for later reference.

Use the control panel to return to OPERATE-level

PROG-key

In order to return to the operator level, press the PROG-key for three seconds.

When no keys are pressed for 2 minutes, SETUP-level will be left automatically.

3.3 CONFIGURATION SETTINGS

All settings of the F126-P-EL-TP can be set via the control panel.

The following paragraphs give a detailed description of each setting.

3.3.1 SETUP MENU - SETTINGS

SETUP FUNCTIONS AND VARIABLES

1

TOTAL

1.1

UNIT

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

1.2

DECIMALS

0000000; 111111.1; 22222.22; 3333.333

1.3

K-FACTOR

0.000001 - 9999999

1.4

DECIMALS K-FACTOR

0 - 6

2

FLOW RATE

2.1

UNIT

mL; L; m3; mg; g; kg; ton; gal; bbl; lb; cf; rev; - - - - (no unit); scf; nm3; nL; p

2.2

TIME

/sec; /min; /hour; /day

2.3

DECIMALS

0000000; 111111.1; 22222.22; 3333.333

2.4

K-FACTOR

0.000001 - 9999999

2.5

DECIMALS K-FACTOR

0 - 6

2.6

FILTER

0 - 99

2.7

PERIOD

0 - 99

3

DISPLAY

3.1

FUNCTION

total; rate

3.2

LIGHT

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

4

POWER MANAGEMENT

4.1

LCD NEW

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

4.2

BATTERY MODE

operational; shelf

5

FLOWMETER

5.1

SIGNAL

npn; npn-lp; reed; reed-lp; pnp; pnp-lp; namur; coil-hi; coil-lo; 8-1 DC; 12 DC; 24 DC

6

TEMPERATURE

6.1

DISPLAY

°C; °F; K

6.2

NO OF WIRES

2, 3

6.3

FILTER

01 - 99

7

FORMULA

7.1

EQUATION

EL (fixed)

7.2

THERMAL EXPANSION

0.000000 – 9.999999 (10-3/K)

7.3

T-NORMAL

0.000 – 9999.999 (K)

8

ANALOG

8.1

OUTPUT

disable; enable

8.2

RATE-MIN

000.000 - 999999

8.3

RATE-MAX

000.000 - 999999

8.4

CUT-OFF

0.0 - 9.9%

8.5

TUNE-MIN

0 - 9999

8.6

TUNE-MAX

0 - 9999

8.7

FILTER

01 - 99

9

PULSE

9.1

WIDTH

0.001 - 9.999

9.2

DECIMALS

0000000; 111111.1; 22222.22; 3333.333

9.3

AMOUNT

0.001 - 9999999

A

COMMUNICATION

A.1

SPEED

1200; 2400; 4800; 9600

A.2

ADDRESS

1 - 255

A.3

MODE

bus-rtu; bus-asc; off

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B

OTHERS

B.1

MODEL

F126-P

B.2

SOFTWARE VERSION

03.03.xx

B.3

SERIAL NO.

nnnnnnn

B.4

PASSWORD

0000 - 9999

B.5

TAG-NR

0000000 - 9999999

3.3.2 MENU 1 - TOTAL

1

TOTAL

1.1

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 K-factor for the (accumulated) total. When you recalculate

and reprogram the K-Factor, 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 K-Factor.

1.2

DECIMALS

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

the (accumulated) total indication.

1.3

K-FACTOR

This setting is used to set the K-Factor for the total. With the K-Factor, the

flowmeter pulse signals are converted to a quantity. The K-Factor is based

on the number of pulses generated by the flowmeter per selected

engineering unit, for example m3. A more accurate K-Factor (more

decimals, as set in decimals K-Factor) allows for a more accurate

operation of the system.

Example 1: Calculating the K-Factor.

The flowmeter generates 2.4813 pulses per liter and the selected unit is

m3. A cubic meter consists of 1000 liter which gives 2.4813 pulses*1000

liter=2481.3 pulses per m3. So, the K-Factor is 2481.3. Enter for the

Flowmeter K-Factor: 24813 and for the flowmeter K-Factor decimals: 1.

Example 2: Calculating the K-Factor.

The flowmeter generates 6.5231 pulses per gallon and the selected

engineering unit is gallons. So, the K-Factor is 6.5231. Enter for the

Flowmeter K-Factor: 65231 and for the Flowmeter K-Factor decimals: 4.

When you recalculate and reprogram a new K-Factor, 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 K-

Factor.

1.4

DECIMALS K-

FACTOR

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

the K-Factor.

3.3.3 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.

2

FLOW RATE

2.1

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 K-Factor has to be adapted as well; the calculation

is not done automatically.

2.2

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.

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

the analog rate-min and analog rate-max.

2.3

DECIMALS

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

the flow rate indication.

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 14

2.4

K-FACTOR

This setting is used to set the K-Factor for the flow rate. With the K-Factor,

the flowmeter pulse signals are converted to a quantity. The K-Factor is

based on the number of pulses generated by the flowmeter per selected

engineering unit, for example m3. A more accurate K-Factor (more

decimals, as set in decimals K-Factor) allows for a more accurate

operation of the system.

2.5

DECIMALS K-

FACTOR

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

the K-Factor.

2.6

FILTER

This setting is used to stabilize the flow rate reading. 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 calculated flow rate and the last average value.

The higher the filter level, the longer the response time on a value change

will be. In practice it is best to use trial and error to find the best setting for

your application.

2.7

PERIOD

This setting is used to calculate the flow rate by counting the number of

pulses within a certain time window, for example 1 second. The longer the

time the more accurate the flow rate will be.

This setting does influence the update time for the analog output directly. If

the output response is too slow, decrease the number of pulses.

The shorter the update time, the higher the power consumption of the unit

will be (important for battery powered applications).

3.3.4 MENU 3 - DISPLAY

3

DISPLAY

3.1

FUNCTION

This setting can be set to display total or rate.

• When 'total' is selected, total is shown with the large digits together

with 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.

3.2

LIGHT

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

brightness) in steps of 20%.

When the F126-P-EL-TP is only loop powered, the backlight is disabled.

An external power supply is required to supply the backlight.

3.3.5 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 F126-P-EL-TP has several smart power management functions to

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

4

POWER MANAGEMENT

4.1

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:

• 1kHz pulse and FAST update: about 2 years;

• 1kHz pulse and 1 sec update: about 5 years.

4.2

BATTERY MODE

The F126-P-EL-TP has two modes: operational or shelf.

After "shelf" has been selected, the F126-P-EL-TP 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 F126-P-EL-TP again, press the SELECT/ key two times.

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 15

3.3.6 MENU 5 - FLOWMETER

5

FLOWMETER

5.1

SIGNAL

With this setting the type of flowmeter output is selected. The settings with

LP (low-pass) filter are used to apply a build-in noise reduction.

Selections "active pulse" offer a detection level of 50% of the supply

voltage.

TYPE OF SIGNAL

EXPLANATION

RESISTANCE

FREQ. / mVPP

REMARK

NPN

NPN input

100 kΩ pull-up

max. 6 kHz.

(open collector)

NPN - LP

NPN with low pass

filter

100 kΩ pull-up

max. 1.2 kHz.

(open collector) less

sensitive

REED

Reed-switch input

1 MΩ pull-up

max. 1.2 kHz.

REED - LP

Reed-with low pass

filter

1 MΩ pull-up

max. 120 Hz.

Less sensitive

PNP

PNP input

100 k pull-down

max. 6 kHz.

PNP - LP

PNP with low pass

filter

100 k pull-down

max. 1.2 kHz.

Less sensitive

NAMUR

NAMUR input

820  pull-down

max. 4 kHz.

External power

required

COIL-HI

High sensitive coil

input

-

min. 20 mVpp

Sensitive for

interference!

COIL-HI (type ZF)

min. 10 mVpp

COIL-HI (type ZG)

min. 5 mVpp

COIL LO

Low sensitive coil

input

-

min. 80 mVpp

Normal sensitivity

8-1 DC

Active pulse input

detection level 8.2 V

DC

3k9 

max. 10 kHz.

External power

required

12 DC

Active pulse input

detection level 12 V

DC

4 k

max. 10 kHz.

External power

required

24 DC

Active pulse input

detection level 24 V

DC

3 k

max. 10 kHz.

External power

required

3.3.7 MENU 6  TEMPERATURE

6

TEMPERATURE

6.1

DISPLAY

Sets the temperature unit shown on display.

6.2

NO OF WIRES

Choose the number of wires used for connecting the Pt100 sensor.

6.3

FILTER

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

This signal is measured several times per 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.

FILTER VALUE

RESONSE TIME ON STEP CHANGE OF ANALOG VALUE (% OF END VALUE)

50%

75%

90%

99%

01

filter disabled

10

14 sec

28 sec

44 sec

88 sec

20

28 sec

56 sec

90 sec

180 sec

30

42 sec

82 sec

136 sec

272 sec

50

70 sec

136 sec

228 sec

456 sec

75

104 sec

208 sec

344 sec

688 sec

99

136 sec

274 sec

454 sec

908 sec

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 16

3.3.8 MENU 7  FORMULA

7

FORMULA

7.1

EQUATION

Fixed as LL stands for Equation Liquid.

The formula used to calculate the normalized liquid volume is

Qn=Q*(1+(Tn-T))

where

Qn calculated volume at reference conditions

Q measured volume (= totalized flow)

 thermal expansion coefficient Setup 7.2

Tn reference temperature Setup 7.3

T measured temperature

7.2

THERMAL EXP.

COEFFICIENT

Enter the thermal expansion  the liquid measured. The

value to be entered has to be multiplied by 109. For example, enter the

value 0.00110 as 1100000, or 0.00031 as 0310000.

A value of 0000000 disables the volume correction.

7.3

T-NORMAL

Enter the reference temperature (in degrees K). For converting the

measured volume to 15ºC enter 288.15.

3.3.9 MENU 8 - ANALOG OUTPUT

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

represents the flowrate. 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.

8

ANALOG OUTPUT

8.1

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

3.5 mA signal will be generated.

8.2

RATE-MIN

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

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

decimals shown depend upon setup 2.3. The engineering units/time (e.g.

L/min) are dependent upon setup 2.1 and 2.2.

8.3

RATE-MAX

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

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

number of decimals shown depend upon setup 2.3. The engineering

units/time (e.g. L/min) are dependent upon setup 2.1 and 2.2.

8.4

CUT-OFF

A low flow cut-off, e.g. to ignore leakage, can be set as a percentage of the

full range of 16 mA, 20 mA or 10 V.

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

minimum signal (4 mA, 0 mA, 0 V). Example:

RATE-MIN

4 mA

RATE-MAX

20 mA

CUT-OFF

%

REQUIRED RATE

OUTPUT

0 L/min

100 L/min

2%

(100-0)*2% = 2.0 L/min

4+(16*2%) = 4.32 mA

20 L/min

800 L/min

3.5%

(800-20)*3.5%= 27.3 L/min

4+(16*3.5%)=4.56 mA

8.5

TUNE-MIN

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

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

might differ slightly due to ambient influences such as temperature for

example.

Before tuning the signal, make sure that the analog signal is idle (not

used) for any application!

After pressing PROG, the current will be about 4 mA (0 mA or 0 V). The

current can be increased / decreased with the arrow keys and is directly

active. Press ENTER to store the new value.

If required, you can program the analog output 'up-side-down'. The (0)4

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

represents the minimum flow rate.

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 17

8.6

TUNE-MAX

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

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

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

Before tuning the signal, make sure that the analog signal is idle (not

used) for any application!

After pressing PROG, the current will be about 20 mA or 10 V. The current

can be increased / decreased with the arrow keys and is directly active.

Press ENTER to store the new value.

If required, you can program the analog output 'up-side-down'. The (0)4

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

represents the minimum flow rate.

8.7

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 (% OF END VALUE)

50%

75%

90%

99%

01

filter disabled

02

0.1 sec

0.2 sec

0.4 sec

0.7 sec

03

0.2 sec

0.4 sec

0.6 sec

1.2 sec

05

0.4 sec

0.7 sec

1.1 sec

2.1 sec

10

0.7 sec

1.4 sec

2.2 sec

4.4 sec

20

1.4 sec

2.8 sec

4.5 sec

9.0 sec

30

2.1 sec

4 sec

7 sec

14 sec

50

3.5 sec

7 sec

11 sec

23 sec

75

5.2 sec

10 sec

17 sec

34 sec

99

6.9 sec

14 sec

23 sec

45 sec

3.3.10 MENU 9 - PULSE OUTPUT

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

accumulated total.

9

PULSE OUTPUT

9.1

WIDTH

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

words the pulse duration. Value 

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





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

advised to program this setting within its range!

9.2

DECIMALS

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

the amount.

9.3

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.

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 18

3.3.11 MENU A - COMMUNICATION (OPTION)

The F126-P-EL-TP can optionally be equipped with a communication interface using the Modbus

protocol (Type CB/CH/CI/CT). Please consult Appendix C for a more detailed explanation of the

protocol, data types and available registers.

A

COMMUNICATION

A.1

SPEED

This setting is used to set the baud rate and should match the speed used

on the communications bus.

The following communication speeds can be selected:

1200  2400  4800  9600

A.2

ADDRESS

This setting is used to configure the bus address of your device on the

communications bus. This address can vary from 001-255.

A.3

MODE

This setting is used to configure the Modbus communication mode of your

device on the communications bus.

The following modes can be selected: ASCII RTU  OFF

3.3.12 MENU B - OTHERS

B

OTHERS

B.1

MODEL

For support and maintenance it is important to have information about the

characteristics of the F126-P-EL-TP. Your supplier will ask for this

information in the case of a serious breakdown or to assess the suitability

of your model for upgrade considerations.

B.2

SOFTWARE

VERSION

B.3

SERIAL NO.

B.4

PASSWORD

All SETUP values can be password protected.

This protection is disabled with value 0000 (zero).

A 4 digit password can be programmed, for example 1234.

B.5

TAG-NR

For identification of the unit and communication purposes, a unique tag

number of maximum 7 digits can be entered.

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 19

4 INSTALLATION

4.1 GENERAL DIRECTIONS

• 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.

• The F126-P-EL-TP 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.

• Ensure that the measuring system is correctly wired up according to the wiring diagrams.

Protection against accidental contact is no longer assured when the enclosure cover is

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

enclosure may only be opened by trained personnel.

• Take careful notice of the "Safety rules, instructions and precautionary measures" at the

front of this manual.

The F1-Series can be supplied as suitable for Safe Area or Hazardous Area. This is indicated in the

model code (shown on the product label) by the Type X* designator, with following options:

• Type XX: Suitable for safe area applications only (e.g. F126-P-EL-TP-XX)

Follow the mechanical and electrical installation instructions shown in chapter 4.

• Type XF: Suitable for explosion proof / flame proof applications (e.g. F126-P-EL-TP-XF)

Follow the electrical installation instructions as shown in chapter 4 and

the mechanical installation instructions of the enclosure that are supplied separately.

• Type XI: Suitable for intrinsically safe applications (e.g. F126-P-EL-TP-XI)

Follow the general mechanical and electrical installation instructions of chapter 4

and the specific installation instructions of chapter 5.

4.2 INSTALLATION - SURROUNDING CONDITIONS

Take the relevant IP classification of the

enclosure into account (see identification plate).

Even an enclosure rated for IP67 / TYPE 4(X)

should NEVER be exposed to strongly varying

(weather) conditions.

When used in very cold surroundings or varying

climatic conditions, inside the instrument case,

take the necessary precautions against moisture.

Mount the F-Series onto a solid structure to avoid

vibrations.

For use in Safe and Hazardous Areas (or Locations), the following conditions apply:

Relative humidity:

< 90% RH

Outdoor use:

suitable for outdoor use

IP and TYPE rating:

IP65 (panel mount), IP67 (field mount) and Type 4X

Supply voltage fluctuation:

As indicated by the supply range (e.g. 10V to 30V),

otherwise +/- 10% unless stated otherwise

Means of protection:

Intrinsically safe:

IS

Ordinary locations:

Class I (PE connected metal enclosure)

Class II (non-metallic enclosure)

Over-voltage category:

II (when supplied from mains)

Pollution degree:

2 (internal environment), 3 (external environment)

Ambient:

Intrinsically safe:

-40 °C to +70 °C, -40 °F to +158 °F

(limited to +50 °C, 122 °F for EPL Da)

Ordinary locations:

-40 °C to +80 °C, -40 °F to +176 °F

Altitude:

up to 2000 m

FW_F126-P-EL-TP_M_v2201-01_EN.docx

Page 20

4.3 HANDLING THE F-SERIES ENCLOSURE

4.3.1 IDENTIFICATION

The F1-Series can be supplied as suitable for Safe Area or Hazardous Area. Suitability for

Intrinsic Safety is indicated in the model code by Type XI (e.g. F126-P-EL-TP-XI).

For Intrinsically Safe applications: Installation and identification labels are shown in chapter 5.

Identification label

To identify your F1-Series device, all field mount enclosures have a weatherproof identification label

placed on the outside of the unit.

Fig. 6: Identification  Example of F1-Series identification label (safe area)

Installation label

A second label is located on the inside and shows additional installation data. For panel mount

enclosures, the outside label is not available, so the inside label also serves as identification label.

After installation, the inside label is only visible from the rear side of the panel.

Fig. 7: Identification  Example of F1-Series installation label (safe area)

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Fluidwell F126-EL Owner's manual

Fluidwell F126-EL Owner's manual

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