Fluidwell F077 Owner's manual

User Manual

F077-A

LEVEL MONITOR

WITH LINEARIZATION AND HIGH / LOW LEVEL ALARMS

Signal input: (0)4-20 mA sensor signal

Signal output: one level alarm

Options: intrinsically safe

backlight

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

More info: www.fluidwell.com/fseries

User Manual F077-A

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TABLE OF CONTENTS

1 ABOUT THIS MANUAL............................................................................................................ 4

1.1 How to use this manual .................................................................................................. 4

1.2 Use of pictograms........................................................................................................... 4

1.3 Warranty and technical support ...................................................................................... 4

1.4 Model Reference ............................................................................................................ 4

2 SAFETY.................................................................................................................................... 5

2.1 Personal safety ............................................................................................................... 5

2.2 End-user responsibilities................................................................................................. 5

2.3 Potential equipment damage .......................................................................................... 5

2.4 Disposal of electronic waste ........................................................................................... 5

3 INTRODUCTION....................................................................................................................... 6

3.1 System description ......................................................................................................... 6

3.2 Product features ............................................................................................................. 6

3.2.1 General characteristics................................................................................................... 6

3.2.2 Input................................................................................................................................ 7

3.2.3 Output............................................................................................................................. 7

3.2.4 Options ........................................................................................................................... 7

3.3 Installation example ........................................................................................................ 7

4 OPERATION............................................................................................................................. 8

4.1 Introduction ..................................................................................................................... 8

4.1.1 Operating modes ............................................................................................................ 8

4.2 Control panel .................................................................................................................. 8

4.2.1 Display............................................................................................................................ 8

4.2.2 Backlight (Type ZB) ........................................................................................................ 9

4.3 Displayed information ..................................................................................................... 9

4.3.1 Level, height or percentage ............................................................................................ 9

4.4 Setting alarm thresholds ................................................................................................. 9

4.5 Operator alarms.............................................................................................................. 9

4.5.1 Level alarm ..................................................................................................................... 9

4.5.2 Range error..................................................................................................................... 10

4.5.3 Low battery ..................................................................................................................... 10

4.5.4 Internal error ................................................................................................................... 10

5 CONFIGURATION.................................................................................................................... 11

5.1 Introduction ..................................................................................................................... 11

5.2 Configuring using SETUP mode..................................................................................... 11

5.2.1 Entering SETUP mode ................................................................................................... 11

5.2.2 Navigating the SETUP menu.......................................................................................... 11

5.2.3 Changing configuration settings ..................................................................................... 12

5.2.4 Returning to Operator Mode........................................................................................... 12

5.3 SETUP menu overview................................................................................................... 13

5.4 SETUP menu explanations............................................................................................. 14

5.4.1 Menu 1: Level ................................................................................................................ 14

5.4.2 Menu 2: Height .............................................................................................................. 14

5.4.3 Menu 3: Alarm ............................................................................................................... 15

5.4.4 Menu 4: Display ............................................................................................................. 15

5.4.5 Menu 5: Power management ......................................................................................... 16

5.4.6 Menu 6: Sensor ............................................................................................................. 17

5.4.7 Menu 7: Linearization .................................................................................................... 18

5.4.8 Menu 8: Others .............................................................................................................. 19

6 INSTALLATION........................................................................................................................ 20

6.1 Installation / environmental conditions............................................................................ 20

6.2 Handling the F077-A enclosure ...................................................................................... 21

6.2.1 Identification.................................................................................................................... 21

6.2.2 Opening, assembling and closing the F-Series .............................................................. 22

6.3 Mechanical installation.................................................................................................... 24

6.3.1 Mechanical dimensions .................................................................................................. 24

6.3.2 Mounting the F-Series .................................................................................................... 26

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6.4 Electrical installation ....................................................................................................... 27

6.4.1 Electrical safety............................................................................................................... 27

6.4.2 Protective earth (PE) connections .................................................................................. 27

6.4.3 Field wiring connections ................................................................................................. 28

6.4.4 Power supply .................................................................................................................. 29

6.4.5 Sensor supply................................................................................................................. 29

6.5 Terminal connectors safe area applications - Type PX, PD, PL..................................... 30

6.5.1 Terminals 1-2 (6): level sensor input .............................................................................. 31

6.5.2 Terminals 4-5: Power supply - type PX and PD ............................................................. 31

6.5.3 Terminal 6: Sensor power supply - Type PD.................................................................. 31

6.5.4 Terminals 7-8: Alarm output - Type OT .......................................................................... 32

6.5.5 Terminals 9-10: Backlight power supply - Type ZB ........................................................ 32

6.6 Terminal connectors safe area applications - Type PF, PM ........................................... 33

6.6.1 Terminals GND-1-2: Power supply................................................................................. 33

6.6.2 Terminals 3-4: Alarm output ........................................................................................... 33

6.6.3 Terminals 5-7: level sensor input.................................................................................... 34

7 INTRINSICALLY SAFE APPLICATIONS ................................................................................ 35

7.1 Identification.................................................................................................................... 35

7.2 Electrical installation in hazardous areas........................................................................ 36

7.2.1 Installations based on FM or CSA Certificate................................................................. 36

7.2.2 Electrical data - Control drawing..................................................................................... 37

7.2.3 Installations based on ATEX or IECEx Certificate.......................................................... 39

7.2.4 Electrical data - Annex 1................................................................................................. 40

7.2.5 Power supply .................................................................................................................. 41

7.2.6 Sensor supply................................................................................................................. 41

7.3 Terminal connectors hazardous area applications ......................................................... 41

7.4 Configuration examples Intrinsically Safe applications................................................... 42

7.4.1 F077-A-OT-PX-XI-ZB - Ex ia IIC/IIIC.............................................................................. 42

7.4.2 F077-A-OT-PD-XI-ZB - Ex ia IIC/IIIC.............................................................................. 42

7.4.3 F077-A-OT-PL-XI-ZB - Ex ia IIC/IIIC .............................................................................. 43

8 MAINTENANCE........................................................................................................................ 44

8.1 General directions........................................................................................................... 44

8.2 Instructions for repair ...................................................................................................... 44

8.3 Battery replacement........................................................................................................ 45

8.3.1 Safety instructions .......................................................................................................... 45

8.3.2 Battery replacement procedure ...................................................................................... 46

8.3.3 Disposal of batteries ....................................................................................................... 46

APPENDIX A - TECHNICAL SPECIFICATION .............................................................................. 47

A.1 General ........................................................................................................................... 47

A.2 Input................................................................................................................................ 49

A.3 Output ............................................................................................................................. 49

A.4 Operational ..................................................................................................................... 49

APPENDIX B - TROUBLESHOOTING ........................................................................................... 51

APPENDIX C - LEGAL INFORMATION ......................................................................................... 52

C.1 Declarations of Conformity ............................................................................................. 52

User Manual F077-A

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1 ABOUT THIS MANUAL

1.1 HOW TO USE THIS MANUAL

This operation manual is divided into two main parts:

● The daily use of the F077-A is described in Section 4: Operation[»8]. These instructions are

meant for users / operators.

● All subsequent sections and appendices are meant for electricians/technicians. These provide a

detailed description of all software settings and hardware installation guidance.

Always follow the instructions in this manual, especially the safety information. For additional

information, please contact your supplier.

1.2 USE OF PICTOGRAMS

A hazardous situation may occur if the unit is not used for the purpose it was designed for or is used

incorrectly. The following pictograms inform you of important information:

A warning indicates a hazardous situation that could cause injury or death.

A caution indicates a condition that could cause:

● moderate/minor personal injury or equipment damage.

● incorrect functioning of the unit or connected instruments.

A note informs you of important information.

1.3 WARRANTY AND TECHNICAL SUPPORT

For warranty and technical support on your Fluidwell products, visit our internet site

www.fluidwell.com or contact us at [email protected].

1.4 MODEL REFERENCE

Hardware version: 03.03.xx

Software version: 03.03.xx

Document version: FW_F077-A_M_v0501-02_EN

Information in this document 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.

by any means without written permission of your supplier.

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2 SAFETY

2.1 PERSONAL SAFETY

● Explosion hazard: Never open the unit when explosive atmosphere is present, and the unit is

connected to a power supply or consuming device like the internal battery supply.

● Risk of electric shock: Only open the unit if all leads are free of potential electrical energy.

● Immediately inform the person responsible for the installation if you disagree with the safety

precautions or if you detect errors or danger.

● Intrinsically Safe applications: follow the instructions as mentioned in Section 7: Intrinsically safe

applications[»35].

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

2.2 END-USER RESPONSIBILITIES

● Installation, use, and servicing of the unit must be done by authorized technicians.

● This unit is not designed for use in life support appliances, devices, or systems where

malfunction of the product could result in 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.

● Check all connections, settings and technical specifications of all peripheral devices supplied

with the unit.

● The unit must be installed in accordance with the EMC (Electro Magnetic Compatibility)

guidelines.

● Connect Protective Earth (PE) / proper grounding to the metal enclosure as indicated in

Section 6.4.2: Protective earth (PE) connections[»27].

● If the unit is used on a ship, truck or somewhere else with no Protective Earth (PE) connection

available, connect an alternative grounding suitable for the application to the metal enclosure.

● The Protective Earth (PE) wire (or alternative grounding) may never be disconnected or

removed.

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

● Modifying the unit without prior written consent from the manufacturer will result in the

immediate termination of product liability and warranty period.

● The manufacturer accepts no responsibility whatsoever if the safety information and instructions

in this manual are not observed.

2.3 POTENTIAL EQUIPMENT DAMAGE

● Before installing the unit, check the mains voltage and information on the manufacturer's label

for product configuration.

● Electro Static Discharge (ESD) causes irreparable damage to electronics. When installing or

opening the unit, the technician should first discharge him- or herself by touching a well-

grounded object.

● Never touch the electronic components.

● Never expose the unit to conditions that may exceed the enclosure classifications as indicated

by the manufacturer's label and Section 6.1: Installation / environmental conditions[»20].

2.4 DISPOSAL OF ELECTRONIC WASTE

At the end of its life this product should be disposed of according to the

(inter)national regulations regarding waste electronic equipment. If a

battery is installed in this product, it should be disposed of separately. The

separate collection and recycling of your waste equipment will help to

conserve natural resources and ensure that it is recycled in a manner that

protects the environment.

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3 INTRODUCTION

3.1 SYSTEM DESCRIPTION

The level monitor model F077-A is a microprocessor-driven instrument designed to linearize the

level sensor output and show the actual level, percentage and height, as well as to generate high

and/or low level alarms.

Fig.1: The F077

This manual describes the daily use, configuration and installation of the F077-A with analog

(0)4-20mA input from a level sensor, and its available options.

The following figure shows the F077-A used in a typical application.

Fig.2: Typical application

3.2 PRODUCT FEATURES

3.2.1 GENERAL CHARACTERISTICS

● One alarm status output

● 8 point linearization table

● Ultra-low power consumption to allow for long battery life (Type PB/PC)

● Various mounting possibilities

● A choice of enclosure materials: GRP, aluminum or stainless steel (316L), suitable for every

industrial environment

● Ability to process a broad range of sensor signals

● Simple and standard configuration and operator interface.

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Configuration

The F077 can be used for many types of application and has a SETUP mode to allow for configuring

it to your requirements. See Section 5: Configuration[»11] for further information.

All settings are stored in an EEPROM memory so they will not be lost if there is a power failure.

3.2.2 INPUT

● One level sensor with a passive or active (0)4-20mA analog signal output

● Several options are available for powering the sensor.

3.2.3 OUTPUT

● An external device such as an alarm or a switch can be connected to the F077-A.

● Several driving options are available, depending on the ordered Type.

3.2.4 OPTIONS

Available options are:

● Intrinsic safety (Type XI)

● Power and sensor supply (Types PB, PC, PD, PF, PL, PM, PX, in various combinations)

● Output driving (Types OA, OR, OT)

● Panel mount enclosure (Types HB, HC)

● Flame-proof enclosure (Type XF)

● Display backlight (Type ZB).

3.3 INSTALLATION EXAMPLE

Following parts can be recognized in below installation example.

Fig.3: Installation example F077-A

1. Front cover 3. Label 5. Keys

2. Display 4. Back cover 6. Cable entry (process mount)

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4 OPERATION

This unit may only be operated by authorized and trained personnel who have read and understood

this manual, particularly Section 2: Safety[»5].

4.1 INTRODUCTION

This chapter describes the daily use and operation of the F077-A. For this, the F-Series is equipped

with a control panel that provides the operator with various functions, information and operating

modes.

4.1.1 OPERATING MODES

The following operating mode are available:

●OPERATOR-mode

This is the default mode of operation and mode indicator

RUN

is shown on the display. This

mode is available for all operators and gives access to the other modes. The available functions

and rights depend on the type of unit and configured settings. The unit will always return to this

mode when there is no user interaction for some time in any of the other modes.

●SETUP-mode

This mode allows to review all configuration settings using a SETUP-menu. The mode indicator

SETUP

is shown on the display and access can be restricted via a password. After selecting a

configuration item, it can be changed using the PROGRAM-mode.

●PROGRAM-mode

This mode is used to change settings in the SETUP-menu, enter values in OPERATOR-mode or

enter a password. When a setting is being changed, this is indicated by the mode indicator

PROGRAM

on the display.

The following paragraphs describe the modes of operation in more detail. SETUP-mode and

PROGRAM-mode are described in Section 5: Configuration[»11].

4.2 CONTROL PANEL

The control panel is located on the front side of the F-Series.

● A Liquid Cristal Display (LCD) to show process values and various other information.

● Three keys (PROG/ENTER, SELECT, CLEAR) to control the unit during operation.

● An optional backlight to illuminate the display (Type ZB).

Functions of the keys in Operator Mode

PROG/ENTER-key

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

The PROG-key is also used to gain access to SETUP mode, see Section 5:

Configuration[»11].

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.

4.2.1 DISPLAY

In the F077-A, all inputs and outputs are continuously processed in the background. The relevant

process information is then displayed on a selection of screens when the product is in OPERATOR-

mode.

The display contains one line with larger digits and one line with smaller characters below that. The

top line displays key process information, while the bottom line usually displays additional

information or system messages. Also, measurement unit and symbols to indicate operating mode,

function, and status may be displayed.

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Normally, the display is updated depending on the refresh rate selected in the configuration settings.

By pressing any key, the display switches to refreshing the information 8 times per second. After 30

seconds of key inactivity, the display returns to the configured refresh rate.

RUN

USGAL

Fig.4: Example of display information during process

4.2.2 BACKLIGHT (TYPE ZB)

The F077 with Type ZB is equipped with a backlight to illuminate the display for improved

readability. The backlight can be turned on or off, and its intensity can be set in the SETUP- menu.

4.3 DISPLAYED INFORMATION

4.3.1 LEVEL, HEIGHT OR PERCENTAGE

The information on the main display is a selection of level, height and percentage, depending on the

settings (

SETUP

4: DISPLAY).

When the input value is too high to display, “- - - - - -“ is shown.

After selecting any other information, the F077 will always return to this display automatically.

The arrows ▲▼ indicate the process value trend: increasing or decreasing.

4.4 SETTING ALARM THRESHOLDS

Setting the threshold values might not be available in Operator Mode. This is set in

SETUP

4.2: DISPLAY > SET ALARM.

When the SELECT key is pressed several times, the set alarm thresholds are displayed. The

measuring unit applied is set in

SETUP

2.1: HEIGHT > UNIT.

To enter alarm values, follow these steps:

1. Press PROG. The text PROGRAM will flash or a pass code is requested

2. Use ►to select a digit and ▲to increase it

3. Confirm the new value by pressing ENTER.

PROGRAM

USGAL

Fig.5: Example of display information during programming low level threshold

When a value was changed but ENTER has not been pressed, the change can be canceled by

waiting for 20 seconds or by pressing ENTER and holding for three seconds.

4.5 OPERATOR ALARMS

4.5.1 LEVEL ALARM

When the measured level is outside the allowed range, an alarm message will be displayed

indicating the type of alarm: "LO LEVEL", "HI LEVEL". The alarm is terminated automatically as

soon as the level is within its range again.

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4.5.2 RANGE ERROR

When the input value is more than 5% outside the calibrated measurement range, ALARM will be

displayed, together with the calibrated value. After pressing the ▲ key, “LO RANGE” or “HI RANGE”

will be displayed, indicating the reason for the alarm.

4.5.3 LOW BATTERY

When the battery voltage drops, it must be replaced. To warn in time, an icon “LOW BATTERY” will

flash on the left side of the display. The F077 will continue to function correctly for several days up to

some weeks, but as soon as the warning stop flashing and is displayed continuously the battery

must be replaced shortly after, or it will run out.

See Section 8.3: Battery replacement[»45] for further information.

RUN

Fig.6: Example of low battery alarm

4.5.4 INTERNAL ERROR

When an internal error occurs, “ALARM” will be displayed. Press the SELECT key several times to

display the 4-digit error code. Consult Section B: Troubleshooting[»51] for more information.

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5 CONFIGURATION

5.1 INTRODUCTION

This chapter describes how technicians can use configuration settings to configure the F-Series for

optimal functionality. Configuration of the F077-A can be done in SETUP mode, using the front keys.

5.2 CONFIGURING USING SETUP MODE

For an overview of Operating modes, see Section 4.1.1: Operating modes[»8].

Changing settings may influence current operation

In SETUP mode the unit remains fully operational. Make sure the product is not being used for any

application when changing settings.

5.2.1 ENTERING SETUP MODE

1. Press the PROG-key for 7 seconds. During this, the symbols ▲▼ are displayed. You may be

prompted to enter a password.

2. The

SETUP

indicator is now activated on the display and the

RUN

indicator is deactivated.

5.2.2 NAVIGATING THE SETUP MENU

The SETUP menu contains several menu groups, which each contain various menu items. Each

menu item has a unique number which is displayed at the bottom of the display. Additionally, each

menu item is expressed with a keyword.

The menu number is a combination of two figures separated by a dot:

● the first figure indicates the selected menu group (e.g. 1. TOTAL).

● the second figure indicates the menu item (e.g. 1.1 UNIT).

The following image shows the layout of the menu structure:

Fig.7: SETUP menu layout and navigation

Navigate the SETUP menu with the following functions:

PROG-key

When a menu item is selected (e.g. 1.1), this key is used to start the programming

sequence.

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

(e.g. 3. à 2. à 1. à 3. à 2. ...)

SELECT-key

This key is used to select the next menu item in the list (e.g. 1. à 1.1 à 1.2 à 1.3 à

1. ...). When the top of the list is reached, it will wrap around and return to the menu group

selection.

CLEAR-key

This key is used to select the previous menu item in the list (e.g. 1.3 à 1.2 à 1.1 à 1. à

2. ...). When the bottom of the list is reached, it returns to the menu group selection.

When a menu group is selected (and no item), this key is used to scroll to the next group

(e.g. 1. à 2. à 3. à 1. à 2. ...)

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5.2.3 CHANGING CONFIGURATION SETTINGS

A menu item either contains a value (a number with optionally a decimal point and sign, e.g.

-123.45) or a selection list (e.g. L – m3 - USGAL). After a menu item is selected in the SETUP menu,

a new value can be programmed by performing the following steps. During the programming

sequence, the

PROGRAM

indicator is shown on the display.

Step 1: Start the programming sequence

PROG-key

When a menu item is selected in the SETUP menu, this key is used to start the

programming sequence.

Step 2a: Change a value

SELECT-key

This key is used to increment the selected digit or to select de next position of the decimal

point.

When the entered value is out of range, the increase sign ▲ or decrease sign ▼ will be

displayed; the value will be automatically brought within range when confirmed later.

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] à digit 1 à digit 2 à digit 3 à [decimal

point]).

SELECT-key + CLEAR-key

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

CLEAR-key simultaneously will toggle the ‘–‘ (minus) sign on and off.

Step 2b: Change the selection in a list

SELECT-key

This key is used to select the next item in the list (e.g. L à m³ à USGAL).

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. USGAL à m³ à L).

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

Step 3: Finish the programming sequence

PROG-key

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

and return to SETUP mode. 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.

5.2.4 RETURNING TO OPERATOR MODE

When all configuration settings are set correctly, return to OPERATOR mode by pressing the

PROG-key for three seconds, or do not press any key for 2 minutes to return automatically. The

RUN

indicator is now activated on the display and the

SETUP

indicator is deactivated.

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5.3 SETUP MENU OVERVIEW

1 LEVEL DEFAULT

1.1 UNIT L - m3- kg - lb - GAL - USG - bbl - no unit L

1.2 DECIMALS 0 - 3 0

1.3 SPAN 0.001 - 999,999 1

1.4 OFFSET -999,999 to +999,999 0

2 HEIGHT DEFAULT

2.1 UNIT m - mm - cm - mtr - inch - ft - mmwk - mmwc - cmwk -

cmwc - mwk - mwc - inwc - ftwc - mbar - bar - psi - no unit

2.2 DECIMALS 0 - 2 0

2.3 SPAN 0.001 - 999,999 1600

2.4 OFFSET -999,999 to +999,999 0

3 ALARM DEFAULT

3.1 EMPTY default - no relays - ignore default

3.2 ALARM LOW -999,999 to +999,999 0

3.3 ALARM HIGH -999,999 to +999,999 0

3.4 DELAY ALARM LOW 0 - 999.9 seconds 0.0

3.5 DELAY ALARM HIGH 0.1 - 999.9 seconds 0.0

3.6 ALARM OUTPUT high - low - both - off both

4 DISPLAY DEFAULT

4.1 FUNCTION height - percentage - off height

4.2 SET ALARM operator - setup operator

4.3 BACKLIGHT off - on off

4.4 BACKLIGHT ALARM off - on - flash off

4.5 BACKLIGHT

BRIGHTNESS

1 - 5 5

5 POWER MANAGEMENT DEFAULT

5.1 LCD UPDATE fast - 1 sec - 3 sec - 15 sec - 30 sec - off 1 sec

5.2 BATTERY MODE operational - shelf operational

6 SENSOR DEFAULT

6.1 FILTER 01 - 99 01 (off)

6.2 CUT-OFF 0.0 - 99.9 % 0

6.3 CALIBRATE LOW default - calibrate - calibrate set factory

6.4 CALIBRATE HIGH default - calibrate - calibrate set factory

7 LINEARIZATION DEFAULT

7.1..8 % / M-FACTOR 1..8 %: 0.01 - 99.9

M-Factor: 0 - 9.999999

0.0 Hz

1.000000

7.9 LINEARIZATION Enable / disable Disable

8 OTHERS DEFAULT

8.1 TYPE / MODEL fixed F077-A

8.2 SOFTWARE VERSION fixed 03.xx.xx

8.3 SERIAL NUMBER fixed xxxxxxx

8.4 PASS CODE 0000 - 9999 0000

8.5 TAG NUMBER 0000000 - 9999999 0000000

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5.4 SETUP MENU EXPLANATIONS

5.4.1 MENU 1: LEVEL

Calculating the Span for Level

The Span is used to convert the sensor output current to a level. The basis is the level at 20 mA

sensor signal. Two examples are given.

Example 1 (no offset)

● The sensor generates 20 mA at a level of 2,481.3 Liters.

● The quantity will be displayed using L (1.1: LEVEL > UNIT), with 1 decimal (1.2: LEVEL > DECIMALS).

● Thus, the span is 2,481.3.

● Enter the Span as 24813 at 1.3: LEVEL > SPAN and 0 at 1.4: LEVEL > OFFSET.

Example 2 (with offset)

● The sensor generates 4 mA at a level of 200 USGAL and 20 mA at 652.31 USGAL.

● The quantity will be displayed using USGAL (1.1: LEVEL > UNIT), with two decimals (1.2: LEVEL >

DECIMALS).

● The Span is 652.31 – 200 = 452.31.

● Enter the Span as 452.31 at 1.3: LEVEL > SPAN and 200.00 at 1.4: LEVEL > OFFSET.

When a different unit is selected, the displayed values are NOT recalculated.

1 LEVEL

1.1 UNIT Determines the measurement unit for the displayed level. The following

units can be selected:

L - m3- kg - lb - GAL - USG - bbl - no unit

Changing the measurement unit will have consequences for operator

and setup values. Please note that the Span should be checked also.

Recalculation is not done automatically.

1.2 DECIMALS Determines for Level and its Span the number of digits after the decimal

point.

1.3 SPAN This value is used to convert the sensor output to a level. The Span is

based on the actual level at 20 mA sensor signal, and the selected

measurement unit, as defined in 1.1: LEVEL > UNIT.

Accuracy of the measurement system depends on the accuracy of the

Span.

Examples are given just above this table.

1.4 OFFSET Enter the "not measured" quantity which is present at sensor output

zero.

When necessary a negative offset can be entered: press the ► and ▲

button simultaneously.

5.4.2 MENU 2: HEIGHT

Calculating the Span for Height

The Span is used to convert the sensor output current to a height. The basis is the actual height at

20 mA. An example follows.

Example

● The sensor generates 4 mA at a height of 21.4 cm water column (cmwc) and 20 mA at 4245.8

cmwc.

● The height will be displayed using cmwc (2.1: HEIGHT > UNIT) with 0 decimals (2.2: HEIGHT >

DECIMALS).

● Thus, the span is 4245.8 – 21.4 = 4224.4.

● Enter 4224 at 2.3: HEIGHT > SPAN and 21 at 2.4: HEIGHT > OFFSET.

F077-A User Manual

FW_F077-A_M_v0501-02_EN Page 15

2 HEIGHT

2.1 UNIT Determines the measurement unit for the displayed height. The following

units can be selected:

m - mm - cm - mtr - inch - ft - mmwk - mmwc - cmwk - cmwc - mwk -

mwc - inwc - ftwc - mbar - bar - psi - no unit

Changing the measurement unit will have consequences for operator

and setup values. Please note that the Span should be checked also.

Recalculation is not done automatically.

2.2 DECIMALS Determines for Height and its Span the number of digits after the

decimal point.

2.3 SPAN This value is used to convert the sensor output to a height. The Span is

based on the actual height at 20 mA sensor signal, and the selected

measurement unit, as defined in 2.1: HEIGHT > UNIT.

Examples are given just above this table.

Accuracy of the measurement system depends on the accuracy of the

Span.

2.4 OFFSET Enter the "not measured" quantity which is present at sensor output

zero.

When necessary a negative offset can be entered: press the ► and ▲

button simultaneously.

5.4.3 MENU 3: ALARM

3 ALARM

3.1 EMPTY When the sensor signal is zero, the monitoring can be ignored or

disabled. Select the desired action when the signal becomes zero:

●Default: the alarm output is switched, and the alarm is indicated on

the display.

●No relay: the alarm output is not switched, but the alarm is indicated

on the display.

●Ignore: the alarm output is not switched, and no alarm is indicated

on the display.

3.2 ALARM LOW Sets the low alarm threshold. An alarm is generated as long as the Level

is lower than this setting. The function is disabled by entering 0.0.

3.3 ALARM HIGH Sets the high alarm threshold. An alarm is generated as long as the

Level is higher than this setting. The function is disabled by entering 0.0.

3.4 DELAY ALARM LOW An alarm generated by 3.2: ALARM > ALARM LOW can be ignored during X-

time period. If the Level is still below the Alarm Low level after this delay

time, an alarm is generated.

3.5 DELAY ALARM HIGH An alarm generated by 3.3: ALARM > ALARM HIGH can be ignored during X-

time period. If the Level is still above the Alarm High level after this delay

time, an alarm is generated.

3.6 ALARM OUTPUT One output is available to transmit the alarm condition. With this setting

the type of alarm to be transmitted can be set: low alarms, high alarms

or both alarms.

5.4.4 MENU 4: DISPLAY

4 DISPLAY

4.1 FUNCTION The bottom line with 8 mm (0.31”) digits can be set to show:

height - percentage - off

Percentage refers to input signal: 4 mA equals 0%, 20 mA equals 100%.

4.2 SET ALARM Determines if the alarm threshold values can be set both at the Operator

level (see Section 4.4: Setting alarm thresholds[»9]) and the SETUP

level (see

SETUP

3: ALARM), or at the SETUP level only.

If SETUP is selected, the alarm values are still shown for the Operator

but cannot be changed. If Hidden is selected, the alarm values are not

shown.

User Manual F077-A

Page 16 FW_F077-A_M_v0501-02_EN

4 DISPLAY

Display backlight is only available with Type ZB. The following functions

will affect this optional backlight.

4.3 BACKLIGHT With this setting, the optional backlight can be turned on or off.

4.4 BACKLIGHT ALARM If the F077-A generates an alarm, the backlight can be set to change to

red. The following settings are available:

●OFF: during an alarm the color is white.

●ON: during an alarm the color is red.

●FLASH: during an alarm the color flashes red.

4.5 BACKLIGHT

BRIGHTNESS

Backlight brightness can be adjusted with this setting. A value from 1 to

5 can be selected, where 1 is minimum, and 5 maximum brightness.

5.4.5 MENU 5: POWER MANAGEMENT

5 POWER MANAGEMENT

5.1 LCD UPDATE Sets the LCD display refresh rate. The following can be selected:

fast - 1 sec - 3 sec - 15 sec - 30 sec - off

When a key is pressed, the display refresh rate will switch to ‘fast’ for 30

seconds. After this the refresh rate will return to the set update rate.

Please note that no information will be lost at low refresh rates: all

sensor input will be processed in the background.

Calculating the display information significantly affects the power

consumption. When the application does not require a fast display

refresh rate, it is strongly advised to select a slow rate.

Indication of expected battery life:

●5.1: POWER MANAGEMENT > LCD UPDATE set to fast: 2 years

●5.1: POWER MANAGEMENT > LCD UPDATE set to 1sec: 5 years.

5.2 BATTERY MODE The F077-A has two main modes: operational and shelf mode. In shelf

mode the product can be stored for several years with extremely low

power consumption from the battery. All settings and totals are

maintained in memory.

To wake up the F077 from shelf mode, simply press the ▲ key twice.

F077-A User Manual

FW_F077-A_M_v0501-02_EN Page 17

5.4.6 MENU 6: SENSOR

6 SENSOR

6.1 FILTER The analog output signal of a level sensor mirrors the actual process

value. This signal is sampled several times per second by the F077-A.

Consequently, random and/or fast changes in sensor signal may lead to

instable displayed process values. With the help of the filter setting a

stable and accurate reading can be obtained. The filter function is based

on three values: the last sampled input signal, the last average value

and the set filter level. The higher the filter level chosen, the slower the

response of the unit to step changes in the process value will be.

The table below gives response times related to filter levels.

RESPONSE TIME ON STEP CHANGE OF INPUT VALUE (IN % OF END VALUE)

Filter value 50% 75% 90% 99%

01 filter disabled filter disabled filter disabled filter disabled

02 0.3 sec 0.5 sec 1.0 sec 1.8 sec

03 0.5 sec 1.0 sec 1.5 sec 3.0 sec

05 1.0 sec 1.8 sec 2.8 sec 5.3 sec

10 1.8 sec 3.5 sec 5.6 sec 11 sec

20 3.5 sec 7.0 sec 11 sec 23 sec

30 5.3 sec 10 sec 17 sec 34 sec

50 8.8 sec 17 sec 29 sec 57 sec

75 13 sec 26 sec 43 sec 86 sec

99 17 sec 34 sec 57 sec 114 sec

6.2 CUT-OFF To ignore small signals in sensor output, a low level cut-off can be set as

percentage of the full range of 16 mA (or 20 mA), and can be set from

0.0 to 99.9 %. If the input is below cut-off, the signal will be ignored. An

example follows.

EXAMPLE OF CUT-OFF CALCULATION

Span Cut-off Cut-off percentage Threshold input signal

450 L 25 L (25/450)*100%=5.5% 16mA*5.5%+4mA=4.88mA

6.3 CALIBRATE LOW The unit is calibrated in factory using a very accurate current source. In

case the sensor signal does not equal (0)4mA at the offset level, this

function is needed to set the minimum input current at minimum level.

Be very sure that the offered tuning signal is stable and correct

before using it for calibration, since this setting has major

influence on the accuracy of the system.

The input loop powered version of the F077-A (Type PL) requires an

input signal of at least 4 mA, not lower.

After pressing PROG, one of three options can be selected.

●CALIBRATE: with this choice, the minimum input will be set at the

actual input current. After pressing ENTER, CAL SET will be

displayed when the calibration process is completed. From now on,

the input current must be higher than the newly calibrated value in

order to be processed.

●DEFAULT: re-installs the factory calibration.

●CAL SET: selects the latest calibrated value.

User Manual F077-A

Page 18 FW_F077-A_M_v0501-02_EN

6 SENSOR

6.4 CALIBRATE HIGH The F077 is calibrated in factory using a very accurate current source. In

case the sensor signal does not equal 20mA at maximum level, this

function is needed to set the input current at maximum level.

Be very sure that the offered tuning signal is stable and correct

before using it for calibration, since this setting has major

influence on the accuracy of the system.

After pressing PROG, one of three options can be selected.

●CALIBRATE: with this choice, the maximum input will be set at the

actual input current. After pressing ENTER, CAL SET will be

displayed when the calibration process is completed. From now on,

the input current must be lower than the newly calibrated value in

order to be processed.

●DEFAULT: re-installs the factory calibration.

●CAL SET: selects the latest calibrated value.

5.4.7 MENU 7: LINEARIZATION

Explanation of principle

The linearization function is available to correct for tank shape, which may very with height. The

general span (entered at 1.3: LEVEL > SPAN) defines the level at 20mA, but the sensor output may not

follow a straight line between level 0% and 100%. Therefore, up to 8 linearization points may be

entered. In between the entered points, the level will be linearly interpolated.

For each linearized position, the signal percentage and the Meter Factor must be entered. The

Meter Factor is calculated with the following formula:

Entering linearization points

A table of multiple linearization points can be entered into the F077. It is advised to enter the

linearization points in increasing order; however, this is not mandatory. The linearization points are

usually located at levels where the linear behavior of the sensor changes. Linearization points that

are not used can be disabled by entering a level of 0%.

Fig.8: Graphic example of linearization points

F077-A User Manual

FW_F077-A_M_v0501-02_EN Page 19

Example

In the following example the span is set at 4250 L and signal is calibrated at 4-20 mA.

First reference point 1

The quantity present in the tank is 695.9 L @ 5.60 mA sensor output.

This is (5.60 - 4.00) / (20.00 - 4.00) x 100% = 10.00% of full signal.

Given the span, a quantity of 4250 x 10% = 425.0 L is expected. Thus, the M-factor for this point (1)

is 695.9 / 425.0 = 1.636471.

Second reference point 2

The quantity present in the tank is 1195.3 L @ 8.11mA sensor output.

This is (8.11 - 4.00) / (20.00 - 4.00) x 100% = 25.69 % of full signal.

Given the span, a quantity of 4250 x 25.69% = 1091.7 L is expected. Thus, the M-factor for this point

(2) is 1195.3 / 1091.7 = 1.094898.

Third reference point 3

The quantity present in the tank is 2635.0 L @ 14.88 mA sensor output.

This is (14.88 - 4.00) / (20.00 - 4.00) x 100% = 68.00 % of full signal.

Given the span, a quantity of 4250 x 68.00% = 2890.0 L is expected. Thus, the M-factor for this point

(3) is 2635.0 / 2890.0 = 0.911765

7 LINEARIZATION

7.1..8 % / M-FACTOR 1..8 The percentage is displayed at the bottom line of the display. When 0%

is selected, the M Factor is disabled.

The M Factor is displayed at the top line of the display. A value between

0.000001 and 9.999999 can be entered. Most M-factors will be around

1.000000, for example 0.945354 or 1.132573.

The M-factor is always defined with six decimals. Please note that the

decimal point is not displayed!

7.9 LINEARIZATION With this setting the linearization function is switched off or on.

5.4.8 MENU 8: OTHERS

8 OTHERS

8.1 TYPE / MODEL

Provides important information on your product. This information may be

required for maintenance or support.

8.2 SOFTWARE VERSION

8.3 SERIAL NUMBER

8.4 PASS CODE All SETUP values can be password protected.

A four-digit password can be programmed, for example 1234.

To disable password protection, enter four zeros (0000).

8.5 TAG NUMBER For identification of the F077 and communication purposes, a unique tag

number of maximum seven digits can be entered.

User Manual F077-A

Page 20 FW_F077-A_M_v0501-02_EN

6 INSTALLATION

● Mounting, electrical installation, start-up and maintenance of this instrument may only be

carried out by trained personnel authorized by the operator of the facility. Personnel must read

and understand this Operating Manual before carrying out its instructions.

● The F077-A may only be operated by personnel who are authorized and trained by the operator

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

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

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 personnel.

● Take careful notice of Section 2: Safety[»5] at the front of this manual.

6.1 INSTALLATION / ENVIRONMENTAL CONDITIONS

The F-Series can be supplied for use in Safe Areas or for Hazardous Locations. This is indicated in

the model code by the Type X- designator, shown on the label.

Type XX Suitable for Safe Area applications only. Follow the mechanical and electrical

installation instructions in this chapter.

Type XI Suitable for intrinsically safe applications in Hazardous Locations. Follow the General

mechanical and electrical installation instructions in this chapter, and the specific

instructions in Section 7: Intrinsically safe applications[»35]. In case of conflict,

Section 7: Intrinsically safe applications[»35] has precedence over Section 6:

Installation[»20].

Type XF Suitable for explosion proof/flame proof applications in Hazardous Locations. Follow

the instructions in this chapter and the installation instructions supplied separately.

Take the relevant IP classification of the enclosure

into account (see identification plate). Even an

enclosure rated for IP67 / NEMA Type 4X should

NEVER be exposed to strongly varying (weather)

conditions.

When used in very cold environment or varying

climatic conditions, inside the instrument case, take

the necessary precautions against moisture.

Mount the F077-A 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 NEMA rating Panel mount: IP65. Field mount: IP67. NEMA Type 4X

Supply voltage

fluctuation

As indicated by supply range (e.g. 10 to 30 V). Otherwise+/-10% unless

stated otherwise

Means of protection Intrinsically safe IS

Ordinary locations Class I (PE connected to 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 ºC to +70 ºC, -40 ºF to +158 ºF

For EPL Da -40 ºC to +50 ºC, -40 ºF to +122 ºF

Ordinary locations -40 ºC to +80 ºC, -40 ºF to +176 ºF

Altitude up to 2000 meters (6600 feet)

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