Fluidwell F077-A User manual

F077-A
LEVEL MONITOR
WITH LINEARIZATION AND HIGH / LOW LEVEL ALARMS
Signal input sensor: (0)4-20mA
Alarm output: one level alarm
Options: Intrinsically Safe
F-Series - Field mounted indicators for safe and hazardous areas.
More info: www.fluidwell.com/fseries

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SAFETY INSTRUCTIONS
•Any responsibility is lapsed if the instructions and procedures as described in this manual
are not followed.
•LIFE SUPPORT APPLICATIONS: The F077-A is not designed for use in life support
appliances, devices, or systems where malfunction of the product can reasonably be
expected to result in a personal injury. Customers using or selling these products for use
in such applications do so at their own risk and agree to fully indemnify the manufacturer
and supplier for any damages resulting from such improper use or sale.
•Electro static discharge does inflict irreparable damage to electronics! Before installing or
opening the F077-A, the installer has to discharge himself by touching a well-grounded
object.
•The F077-A must be installed in accordance with the EMC guidelines (Electro Magnetic
Compatibility).
•Connect a proper grounding to the metal enclosure as indicated if the F077-A 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 F077-A implemented without preceding written consent from the
manufacturer, will result in the immediate termination of product liability and warranty
period.
•Mounting, electrical installation, start-up and maintenance of this device may only be
carried out by trained persons authorized by the operator of the facility. Persons must
read and understand this manual before carrying out its instructions.
•This device may only be operated by persons who are authorized and trained by the
operator of the facility. All instructions in this manual are to be observed.
•Check the mains voltage and information on the manufacturer's plate before installing the
F077-A.
•Check all connections, settings and technical specifications of the various peripheral
devices with the F077-A supplied.
•Open the enclosure only if all leads are free of potential.
•Never touch the electronic components (ESD sensitivity).
•Never expose the system to heavier conditions than allowed according to the
classification of the enclosure (see manufacture's plate and chapter 4).
•If the operator detects errors or dangers, or disagrees with the safety precautions taken,
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 operation manual is divided into two main sections:
•The daily use of the F077-A is described in chapter 2 
meant for users.
•The following chapters and appendices are exclusively meant for electricians/technicians. These
provide a detailed description of all software settings and hardware installation guidance.
This operation manual describes the standard F077-A as well as most of the options available. For
additional information, please contact your supplier.
A hazardous situation may occur if the F077-A is not used for the purpose it was designed
for or is used incorrectly. Please carefully note the information in this operating manual
indicated by the pictograms:
A "warning !" indicates actions or procedures which, if not performed correctly, may lead to
personal injury, a safety hazard or damage of the F077-A or connected instruments.
A "caution !" indicates actions or procedures which, if not performed correctly, may lead to
personal injury or incorrect functioning of the F077-A or connected instruments.
A "note !" indicates actions or procedures which, if not performed correctly, may indirectly
affect operation or may lead to an instrument response which is not planned.
WARRANTY AND TECHNICAL SUPPORT
For warranty and technical support for your Fluidwell products,
visit our internet site www.fluidwell.com or contact us at [e-mail].
Hardware version : 03.03.xx
Software version : 03.03.xx
Manual : FW-F077-A-M_v0404_01_EN.docx
© Copyright 2022 : Fluidwell B.V. - the Netherlands
Information in this manual is subject to change without prior notice. The
manufacturer is not responsible for mistakes in this material or for incidental
damage caused as a direct or indirect result of the delivery, performance or
use of this material.
© All rights reserved. No parts of this publication may be reproduced or used
in any form or by any means without written permission of your supplier.

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CONTENTS MANUAL
SAFETY INSTRUCTIONS.................................................................................................................... 2
DISPOSAL OF ELECTRONIC WASTE............................................................................................... 2
SAFETY RULES AND PRECAUTIONARY MEASURES ................................................................... 2
ABOUT THE MANUAL ........................................................................................................................ 3
WARRANTY AND TECHNICAL SUPPORT........................................................................................ 3
CONTENTS MANUAL ......................................................................................................................... 4
1INTRODUCTION ..................................................................................................................... 6
1.1 System description of the F077-A............................................................................................6
2OPERATIONAL....................................................................................................................... 7
2.1 General information .................................................................................................................7
2.2 Control panel............................................................................................................................7
2.3 Operator information and functions .........................................................................................7
3CONFIGURATION................................................................................................................... 9
3.1 Introduction ..............................................................................................................................9
3.2 Programming SETUP-level......................................................................................................9
3.2.1 Entering SETUP-level..............................................................................................................9
3.2.2 Navigating through SETUP-level.............................................................................................9
3.2.3 Programming sequence.........................................................................................................10
3.2.4 Returning to OPERATOR-level .............................................................................................11
3.3 Configuration Settings............................................................................................................12
3.3.1 Overview functions SETUP level...........................................................................................12
3.3.2 Explanation of SETUP-menu 1 - Level..................................................................................13
3.3.3 Explanation of SETUP-menu 2 - Height................................................................................13
3.3.4 Explanation of SETUP-menu 3 - Alarm.................................................................................14
3.3.5 Explanation of SETUP-menu 4 - Display...............................................................................15
3.3.6 Explanation of SETUP-menu 5 - Power management..........................................................15
3.3.7 Explanation of SETUP-menu 6 - Sensor...............................................................................16
3.3.8 Explanation of SETUP-menu 7 - Linearization......................................................................17
3.3.9 Explanation of SETUP-menu 8 - Others................................................................................18
4INSTALLATION..................................................................................................................... 19
4.1 General directions..................................................................................................................19
4.2 Installation / surrounding conditions ......................................................................................19
4.3 Handling the F-Series enclosure ...........................................................................................20
4.3.1 Identification...........................................................................................................................20
4.3.2 Opening / Removing the cover ..............................................................................................22
4.3.3 Closing / Replacing the cover................................................................................................22
4.4 Mechanical installation...........................................................................................................23
4.4.1 Dimensions Aluminum and stainless steel enclosures.......................................................23
4.4.2 Dimensions Non-metallic enclosures..................................................................................24
4.4.3 Mounting ................................................................................................................................25
4.5 Electrical installation ..............................................................................................................26
4.5.1 Electrical safety......................................................................................................................26
4.5.2 Protective Earth (PE) connections.........................................................................................26
4.5.3 Field wiring connections.........................................................................................................27
4.5.4 Power supply wiring...............................................................................................................28
4.5.5 Sensor supply ........................................................................................................................28
4.6 Terminal connectors safe area applications Type PB / PD / PL / PX.................................29
4.6.1 Terminals 1-2: Sensor input...................................................................................................29
4.6.2 Terminal 4-5: Power supply - type PX (default) and PD (option) ..........................................30
4.6.3 Terminal 7-8: Alarm output - Type OT (option)......................................................................30
4.6.4 Terminal 9-10: Power supply backlight - type ZB (option).....................................................30
4.7 Terminal connectors safe area applications Type PF / PM................................................30
4.7.1 Terminal GND-1-2: Power Supply .........................................................................................31
4.7.2 Terminals 3-4: Alarm output ..................................................................................................31
4.7.3 Terminals 5-7: Sensor input...................................................................................................32
5INTRINSICALLY SAFE APPLICATIONS............................................................................. 33
5.1 Identification...........................................................................................................................33
5.2 Electrical installation in hazardous area ................................................................................34
5.2.1 General information and instructions.....................................................................................34

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5.2.2 Installations based on FM or CSA certificate ........................................................................ 34
5.2.3 Electrical data Control drawing........................................................................................... 35
5.2.4 Installations based on ATEX or IECEx certificate ................................................................. 37
5.2.5 Electrical data Annex 1....................................................................................................... 38
5.3 Terminal connectors Intrinsically Safe applications .............................................................. 39
5.3.1 Power supply wiring............................................................................................................... 39
5.3.2 Terminal 6 - Type PD: Sensor supply ................................................................................... 39
5.4 Configuration examples Intrinsically Safe applications ......................................................... 40
5.4.1 F077-A-OT-PX-XI-ZB - Ex ia IIC/IIIC..................................................................................... 40
5.4.2 F077-A-OT-PD-XI-ZB - Ex ia IIC/IIIC .................................................................................... 40
5.4.3 F077-A-OT-PL-XI-ZB - Ex ia IIC/IIIC..................................................................................... 41
6MAINTENANCE.....................................................................................................................42
6.1 General directions ................................................................................................................. 42
6.2 Instructions for repair............................................................................................................. 42
6.3 Battery replacement .............................................................................................................. 43
6.3.1 Safety instructions ................................................................................................................. 43
6.3.2 Replace the battery ............................................................................................................... 44
6.3.3 Disposal of batteries.............................................................................................................. 44
TECHNICAL SPECIFICATION.................................................................................45
PROBLEM SOLVING ...............................................................................................48
DECLARATION OF CONFORMITY .........................................................................49
INDEX OF THIS MANUAL..................................................................................................................50
LIST OF FIGURES..............................................................................................................................50

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1 INTRODUCTION
1.1 SYSTEM DESCRIPTION OF THE F077-A
Functions and features
The level monitor model F077-A is a microprocessor driven instrument designed to linearize the
level sensor output and display the actual level as well as the monitoring of the level for high / low
values.
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 GRP, aluminum or stainless steel 316L enclosures for
industrial surroundings,
▪ability to process all types of sensor signals
▪transmitting possibilities with one configurable alarm output.
Sensor input
This manual describes the unit with an analog (0)4-20mA input type from the sensor "-A version".
Other versions are available to process 0-10V sensor signals.
One sensor with a passive or active (0)4-20mA signal output can be connected to the F077-A. To
power the sensor, several options are available.
Fig. 1: Typical application for the F077-A.
Configuration of the F077-A
The F077-A has been designed to be implemented in many types of applications. For that reason, a
SETUP-level is available to configure your F077-A according to your specific requirements.
It includes several important features, such as span, measurement units, display options etc. All
setting are stored in EEPROM memory and will not be lost in the event of power failure. To extend
the battery-life time, please use of the power-management functions as described in chapter 3.3.6.
Display information
The F077-A has a large transflective LCD with all kinds of symbols and digits to display measuring
units, status information, trend-indication and key-word messages.
Level, height and alarm values are displayed with the large 17mm digits while the smaller 8mm
digits can be set to display the measuring unit.
Options
The following options are available: intrinsic safety, mechanical relay, passive or active outputs,
power- and sensor-supply options, panel-mount, wall-mount and weather-proof enclosures, flame
proof enclosure and LED backlight.
Overview typical application F077
alarm output
low
high
LINEARISATION

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2 OPERATIONAL
2.1 GENERAL INFORMATION
This chapter describes the daily use of the F077-A. This instruction is meant for users / operators.
•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
•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.
CLEAR-key
This key is used to CLEAR the value of total.
2.3 OPERATOR INFORMATION AND FUNCTIONS
In general, the F077-A 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 F077-A in the
background, whichever screen refresh rate setting is chosen. After pressing a key, the display will be
updated very quickly during a 30 second period, after which it will slow-down again.
Fig. 3: Example of display information during process.
For the Operator, the following functions are available:
•Display level/height or percentage
This is the main display information of the F077-A. After selecting any other information, it will
always return to this main display automatically.
Level is displayed on the upper-line of the display and the percentage, height or nothing on the
bottom line. When "-------" is shown, the value is too high to be displayed. The arrows indicate
the increase/decrease of the level trend.
RUN

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•Programming the level alarm values
This function might not be accessible due to a configuration setting.
When the SELECT-key is pressed a few times, level alarm values are displayed:
- low level alarm: 40 USGAL for example,
- high level alarm: 600 USGAL for example.
To change the alarm value, follow these steps:
1) press PROG: the word "PROGRAM" will flash or a pass code will be requested,
2) use to select the digits and to increase that value,
3) confirm the new alarm value by pressing ENTER.
Fig. 4: Example of display information during programming minimum alarm level.
When a value was changed but ENTER has not been pressed yet, the change can still be
cancelled by waiting for 20 seconds or by pressing ENTER during three seconds.
•Level alarm
When the actual 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.
•Low-battery alarm
When the battery voltage drops, it must be replaced. At first "" will flash, but as soon
as it is 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. 5: Example of low-battery alarm.
•Range error

will be displayed. Meanwhile, the calibrated value will be displayed.

.
•Alarm 01-03
When "alarm" is displayed, please consult Appendix B: problem solving.
RUN
LOWBATTERY SET-UP ALARM
PROGRAMREADY
RUN
LOW BATTERY

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3 CONFIGURATION
3.1 INTRODUCTION
This and the following chapters are exclusively meant for electricians and non-operators. In these,
an extensive description of all software settings and hardware connections are provided.
•Mounting, electrical installation, start-up and maintenance of the instrument may only be
carried out by trained personnel authorized by the operator of the facility. Personnel must
read and understand this Operating Manual before carrying out its instructions.
•The 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.
The housing may only be opened by trained personnel.
•Take careful notice of the "Safety rules, instructions and precautionary measures" in the
front of this manual.
3.2 PROGRAMMING SETUP-LEVEL
Changing the settings of the F077-A 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 F077-A is done at SETUP-level, which can be reached at all times while the
F077-A 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 near 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. 6: 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-

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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.
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.

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3.3 CONFIGURATION SETTINGS
All settings of the F077-A can be set via the control panel.
The following paragraphs give a detailed description of each setting.
3.3.1 OVERVIEW FUNCTIONS SETUP LEVEL
SETUP FUNCTIONS AND VARIABLES
1
LEVEL
1.1
UNIT
L - m3 - kg - lb - GAL - USGAL - bbl - no unit
1.2
DECIMALS
0 - 1 - 2 - 3 (Ref: displayed value)
1.3
SPAN
0.001 to 999,999 unit
1.4
OFFSET
-999,999 to +999,999 unit
2
HEIGHT
2.1
UNIT
mm - cm - m - mtr - inch - ft - mmwk - mmwc - cmwk - cmwc - mwk -
mwc - inwc - ftwc - mbar - bar - psi - no unit.
2.2
DECIMALS
0 - 1 - 2 (Ref: displayed value)
2.3
SPAN
0.01 to 999,999 unit
2.4
OFFSET
-999,999 to +999,999 unit
3
ALARM
3.1
EMPTY
default - no relays - ignore
3.2
ALARM LOW
-999,999 to +999,999 unit
3.3
ALARM HIGH
-999,999 to +999,999 unit
3.4
DELAY ALARM LOW
0.1 - 999.9 seconds
3.5
DELAY ALARM HIGH
0.1 - 999.9 seconds
3.6
ALARM OUTPUT
high - low –hi_lo - off
4
DISPLAY
4.1
FUNCTION
height - percentage - off
4.2
SET ALARM
operator - setup
4.3
BACKLIGHT (optional)
off - on
4.4
BACKLIGHT ALARM
off - on - flash
4.5
BL. BRIGHTNESS
1 - 5
5
POWER MANAGEMENT
5.1
LCD UPDATE
fast - 1 sec - 3 sec - 15 sec - 30 sec - off
5.2
BATTERY MODE
operational - shelf
6
SENSOR
6.1
FILTER
00 - 99
6.2
CUT-OFF
0.0 - 99.9%
6.3
CALIBRATE LOW
default - calibrate - calibrate set
6.4
CALIBRATE HIGH
default - calibrate - calibrate set
7
LINEARIZATION
7.1
% / M-FACTOR 1
0.01% - 99.99% / 0 - 9.999999
7.2
% / M-FACTOR 2
0.01% - 99.99% / 0 - 9.999999
...
...
...
7.8
% / M-FACTOR 8
0.01% - 99.99% / 0 - 9.999999
7.9
LINEARIZATION
enable / disable
7
OTHERS
7.1
TYPE / MODEL
F077-A
7.2
SOFTWARE VERSION
03.03.xx
7.3
SERIAL NO.
xxxxxxx
7.4
PASS CODE
0000 - 9999
7.5
TAGNUMBER
0000000 - 9999999

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3.3.2 EXPLANATION OF SETUP-MENU 1 - LEVEL
SETUP FUNCTIONS AND VARIABLES
1
LEVEL
1.1
UNIT
SETUP 1.1 determines the measurement unit for the displayed level.
The following units can be selected:
L - m3 - kg - lb. - GAL - USGAL - bbl - _ (no unit).
Alteration of the measurement unit will have consequences for
operator and SETUP-level values.
Please note that the span has to be adapted as well; the calculation is
not done automatically.
1.2
DECIMALS
This setting determines for level and span the number of digits
following the decimal point.
The following can be selected:
00000 - 1111.1 - 222.22 - 33.333
1.3
SPAN
With the span, the sensor signal is converted to a quantity. The span
is determined on the basis of the selected measurement unit at 20mA.
The more accurate the span, the more accurate the functioning of the
system will be.
Example 1 Calculating the span for level
Let us assume that the sensor generates 20mA at a level of 2,481.3
Liters, the selected unit is "Liters" and 1 decimal. The span is 2481.3.
Enter for SETUP 1.3: "24813"
and for SETUP 1.4: "0".
Example 2 Calculating the span for level with offset
Let us assume that the sensor generates 4mA at a level of 200
USGAL, and 20mA at 652.31 USGAL. The selected unit is USGAL
with two decimals.
The span is 652.31-200=452.31. Enter for SETUP 1.1: 

1.4
OFFSET
Enter here the "not measured" quantity which is present without a
sensor signal being generated.
Also, a negative offset can be entered: do press the middle and right
button simultaneously.
3.3.3 EXPLANATION OF SETUP-MENU 2 - HEIGHT
SETUP FUNCTIONS AND VARIABLES
2
HEIGHT
2.1
UNIT
SETUP 2.1 determines the measurement unit for the displayed level.
The following units can be selected:
mm - cm - m - mtr - inch - ft - mmwk - mmwc - cmwk - cmwc - mwk - mwc -
inwc - ftwc - mbar - bar - psi - no unit.
Alteration of the unit will have consequences for operator and
SETUP-level values.
Please note that the span (SETUP 2.3) has to be adapted as well; the
calculation is not done automatically.
2.2
DECIMALS
This setting determines for height and its span the number of digits
following the decimal point. The following can be selected:
00000 - 1111.1 - 222.22

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2.3
SPAN
With the span, the sensor signal is converted to a height. The span is
determined on the basis of the selected measurement unit at 20mA.
The more accurate the span, the more accurate the functioning of the
system will be.
Example Calculating the span for height with offset
Let us assume that the sensor generates 4mA at a height of 21.4 cm
water column, and 20mA at 4245.8 cm water column. The selected
unit is CMWC with no decimals.
The span is 4245.8-21.4=4224.4. Enter for SETUP 2.1: 

2.4
OFFSET
Enter here the "not measured" quantity which is present without a
sensor signal being generated.
Also, a negative offset can be entered: do press the middle and right
button simultaneously.
3.3.4 EXPLANATION OF SETUP-MENU 3 - ALARM
SETUP FUNCTIONS AND VARIABLES
3
ALARM
3.1
LEVEL ZERO
When the level signal is zero (or offset value SETUP 1.4), it is
possible to ignore or disable the low level alarm. The following
settings can be selected:
DEFAULT: in case of a low level alarm and zero/offset signal, it
will switch the alarm output and indicate the alarm on
the display.
NO RELAY: in case of a low level alarm and zero/offset signal, it
won't switch the alarm output but will indicate the
alarm on the display only.
IGNORE: in case of a low level alarm and zero/offset signal, it
won't switch the alarm output and nothing will be
indicated on the display.
3.2
ALARM VALUE LOW
LEVEL
The low alarm is set with this setting. An alarm will be generated as
long as the level is lower than this value.
With value 0.0 this function is disabled.
3.3
ALARM VALUE HIGH
LEVEL
The high alarm is set with this setting. An alarm will be generated as
long as the level is higher than this value.
With value 0.0 this function is disabled.
3.4
DELAY TIME ALARM
LOW LEVEL
An alarm generated by SETUP 3.be ignored during X-time
period. If the actual level is still incorrect after this delay time, then an
alarm will be generated.
3.5
DELAY TIME ALARM
HIGH LEVEL
An alarm generated by SETUP 3.-
time period. If the actual level is still incorrect after this delay time,
then an alarm will be generated.
3.6
ALARM OUTPUT
TRANSISTOR /RELAY
One transistor or relay output is available to transmit the alarm
condition. Assign with this function the type of alarm to be transmitted:
low level alarm, high level alarm or both alarms.

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3.3.5 EXPLANATION OF SETUP-MENU 4 - DISPLAY
SETUP FUNCTIONS AND VARIABLES
4
DISPLAY
4.1
FUNCTION
The small 8mm digits can be set to display height, percentage or
nothing (off).
4.2
SET ALARM
This function determines if the level alarm values can be set at both
Operator level and SETUP-level or SETUP-level only.
If SETUP has been selected, the alarm values are still visible for the
Operator but cannot be changed.
The functions below will only affect the optional LED-backlight.
4.3
BACKLIGHT (optional)
If a LED backlight has been supplied, it can be turned on or off.
4.4
BACKLIGHT ALARM
(optional)
In case the F077-A generates a level alarm, the backlight can be set
to change to red. Following selections are available:
OFF: during level alarm display is according to SETUP 4.3
ON: during level alarm the color is red.
FLASH: during level alarm the color flashes red.
4.5
BL. BRIGHTNESS
(optional)
The backlight brightness is adjustable. The following can be selected:
1 5 (where 1 is minimum and 5 is maximum brightness)
3.3.6 EXPLANATION OF SETUP-MENU 5 - POWER MANAGEMENT
When used with the internal battery option, the user can expect reliable measurement over a long
period of time. The F077-A has several smart power management functions to extend the battery life
time significantly. Two of these functions are available.
SETUP FUNCTIONS AND VARIABLES
5
POWER MANAGEMENT
5.1
LCD NEW
The calculation of the display-information influences the power
consumption significantly. When the application does not require a
fast display update, it is strongly advised to select a slow refresh
rate. Please understand that NO information will be lost; every pulse
will be counted and the output signal will be generated in the normal
way. The following can be selected:
Fast - 1 sec - 3 sec - 15 sec - off.
Example battery life-time:
•FAST update: about 3 years.
•1 sec update: about 5 years.
After a button has been pressed by the operator - the display refresh
rate will always switch to FAST for 30 seconds. When "OFF" is
selected, the display will be switched off after 30 seconds and will be
switched on as soon as a button has been pressed.
5.2
BATTERY MODE
The F077-A has two modes: operational or shelf. After "shelf" has
been selected, the F077-A can be stored for several years; it will not
process the sensor signal; the display is switched off but all settings
and totals are stored. In this mode, power consumption is extremely
low. To wake up the F077-A again, press the SELECT/key twice.

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3.3.7 EXPLANATION OF SETUP-MENU 6 - SENSOR
SETUP FUNCTIONS AND VARIABLES
6
SENSOR
6.1
FILTER
The analog output signal of a sensor mirrors the actual level. This
signal is measured several times per second by the F077-A. The
value measured is a "snap-shot" of the real level as it will be
fluctuating. With the help of this digital filter a stable and accurate
reading can be obtained. The filter level can be set to a desired value.
The filter is based on three input values: the filter level (01-99), the
last measured analog value and the last average value. The higher
the filter level, the longer the response time on a value change will be.
Below, several filter levels with response times are indicated:
Filter value
Response time to step change in analog input value (seconds)
50%
75%
90%
99%
01
filter disabled
filter disabled
filter disabled
filter disabled
02
0.3
0.5
1.0
1.8
03
0.5
1.0
1.5
3.0
05
1.0
1.8
2.8
5.3
10
1.8
3.5
5.6
11
20
3.5
7.0
11
23
30
5.3
10
17
34
50
8.8
17
29
57
75
13
26
43
86
99
17
34
57
114
6.2
CUT-OFF
To ignore small signals, f.i. vibration, a low-level cut-off can be set as
percentage of the full range of 16mA (or 20mA). When the analog
value is less than required with this setting, the signal will be ignored.
The cut-off value can be programmed in the range 0.0 - 99.9%. Below
an example is given.
Span
(SETUP 1.3)
Required
cut-off
Cut-off (SETUP 6.2)
Required output
450 L
25 L
(25/450)*100%=5.5%
16mA*5.5%+4mA=4.88mA
6.3
TUNE MIN / 4mA
With this setting it is possible to calibrate the input value for (0)4mA
as the signal from the sensor might not be exact 4.0mA (or 0.0 mA) at
the offset level. This function will measure the real output value at
minimum level.
The input loop powered version - type A-PL - requires a signal of at
least 4mA; not lower!
Be very sure that the offered signal is correct before calibration is
executed, as this has major influence on the accuracy of the system
After pressing PROG, three settings can be selected:
▪CALIBRATE: with this setting, the input will be calibrated with the
actual "(0)4mA" value. After pressing enter, CAL SET will be
displayed as soon as the calibration is completed. From that
moment, the analog value must be more than the calibrated value
before the signal will be processed.
▪DEFAULT: with this setting, the factory value is re-installed.
▪CAL SET: to select the last calibrated value.

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6.4
TUNE MAX / 20mA
With this setting it is possible to calibrate the input value for 20mA as
the signal from the sensor might not be exact 20.0mA at maximum
level (offset + span). This function will measure the real output value
at maximum level.
Be very sure that the offered signal is correct before calibration is
executed, as this has major influence on the accuracy of the system
After pressing PROG, three settings can be selected:
▪CALIBRATE: with this setting, the input will be calibrated with the
actual "20mA" value. After pressing enter, CAL SET will be
displayed as soon as the calibration is completed. From that
moment, the analog value must be less than the calibrated value
for reliable measurements.
▪DEFAULT: with this setting, the factory value is re-installed.
▪CAL SET: to select the last calibrated value.
3.3.8 EXPLANATION OF SETUP-MENU 7 - LINEARIZATION
The linearization function is available to correct for the tank shape, to approach the real contents of
the tank at any height, beyond the general Span entered with setup 13. A maximum of eight
linearization positions can be entered while the interpolation will calculate any other position in-
between. For each linearization position, the percentage of signal and the Meter Factor (MF) must
be entered.
The Meter Factor for each linearization step is calculated with following formula:
Meter Factor
=
Measured level
Calculated level
It is advised to enter the percentages in increasing order, however this is not necessary.
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

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SETUP FUNCTIONS AND VARIABLES
7
LINEARIZATION
7.1 ..
7.8
PERCENTAGE / M-
FACTOR
The percentage is displayed at the bottom line of the display.
With value 0% the reference point is not used.
The M-Factor is displayed at the top-line of the display. The minimum
value to be entered is 0.000001 and the maximum value is 9.999999.
Please note that this value has always six decimals while the "dot" is
not displayed.
7.9
LINEARIZATION
Disables or enables the linearization function.
3.3.9 EXPLANATION OF SETUP-MENU 8 - OTHERS
SETUP FUNCTIONS AND VARIABLES
8
OTHERS
8.1
TYPE / MODEL
For support and maintenance it is important to have information about
the characteristics of the F077-A.
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.
8.2
SOFTWARE VERSION
8.3
SERIAL NO.
8.4
PASS CODE
All SETUP-values can be pass code protected.
This protection is disabled with value 0000 (zero).
Up to and including 4 digits can be programmed, for example 1234.
8.5
TAGNUMBER
For identification of the F077-A and communication purposes, a
unique tag number of maximum 7 digits can be entered.

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4 INSTALLATION
4.1 GENERAL DIRECTIONS
•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.
•Make sure 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 persons authorized by the operator of the
facility.
•Take careful notice of the "Safety rules, instructions and precautionary measures" at the
front of this manual.
The F0-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. F077-A-XX)
Follow the mechanical and electrical installation instructions shown in chapter 4.
•Type XF: Suitable for explosion proof / flame proof applications (e.g. F077-A-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. F077-A-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 NEMA 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

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4.3 HANDLING THE F-SERIES ENCLOSURE
4.3.1 IDENTIFICATION
The F0-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. F077-A-XI).
For Intrinsically Safe applications: Installation and identification labels are shown in chapter 5.
Identification label
To identify your F0-Series device, all field mount enclosures have a weatherproof identification label
placed on the outside of the unit.
Fig. 7: Identification Example of F0-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. 8: Identification Example of F0-Series installation label (safe area - Type PB, PX or PD)