F.u.n.k.e. BFI57 Instruction Manual

ff.u.n.k.e. f.u.n.k.e. means –fabrication · utilities · network · know-how · engineering
Operation and Installation
(Dokument-Nr. 08.510.010.71e)
P/N 57BFI-(xxx)-(xxx)
BFI57
Basic Flight
Instrument

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
Document-No.: 08.510.010.71e/ Revision:
3.10
2
List of Changes
Revision Date Change Description
1.00 04.10.2010
First Issue
1.01 24.11.2010
Power Consumption
1.02 26.11.2010
Correction Delivery
2.00 25.05.2011
Software 2.00, Cable Changed
2.01 01.04.2013
EC-Declaration of Conformity adjusted
3.00 04.02.2014
Change of company name to
f.u.n.k.e. AVIONICS GmbH
Available Accessories updated (Chapter 3.3)
3.10 05.07.2016
Software 2.01 with f.u.n.k.e.
List of Service Bulletins (SB)
Service bulletins are to be inserted in the manual and to be recor
ded in
the table.
SB Number Rev. No. Issue Date Date of Insertion Name
Device Overview
Article Number Description
P/N 57BFI-(000)–(000)
Basic variant
P/N 57BFI-(001)–(000)
Software-Change with f.u.n.k.e.

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
Document-No.: 08.510.010.71e/ Revision:
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TABLE OF CONTENTS
1 INTRODUCTION ..............................................................................5
1.1 Symbols ...........................................................................................5
1.2 Customer Service.............................................................................5
1.3 Device Overview..............................................................................6
2 OPERATION.....................................................................................7
2.1 Operation Controls...........................................................................7
2.2 Switching ON/OFF...........................................................................8
2.3 Display .............................................................................................9
2.3.1 Primary Flight Information ........................................................... 9
2.3.2 Elements of the Third Line......................................................... 10
2.4 Operation of QNH (Manually and Automatically)...........................14
2.5 Settings ..........................................................................................17
2.5.1 Layout of the Setting-Mode ....................................................... 17
2.5.2 Setting Options – Step by Step ................................................. 18
2.6 Battery Care...................................................................................20
2.7 Calibration......................................................................................20
3 INSTALLATION ..............................................................................21
3.1 Unpacking and Inspection..............................................................21
3.2 Scope of Delivery...........................................................................21
3.3 Available Accessory.......................................................................21
3.4 Mounting ........................................................................................22
3.5 Device Connectors.........................................................................22
3.5.1 GPS Antenna ............................................................................ 22
3.5.2 Pressure Inputs......................................................................... 23
3.5.3 Power / RS-232......................................................................... 23
3.6 Device Dimensions ........................................................................24
3.6.1 Housing..................................................................................... 24
3.6.2 Installation Hints........................................................................ 25
3.7 Post-Installation Checks.................................................................25
3.8 Device Configuration......................................................................26
3.8.1 Switching-On Behaviour............................................................ 26
3.8.2 Charging Behaviour................................................................... 27
3.8.3 IAS Tape – Colour Markers....................................................... 27
3.9 Firmware Update............................................................................29
4 STORAGE AND DISPOSAL...........................................................30

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Operation and Installation
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5 APPENDICES.................................................................................31
5.1 Technical Data ...............................................................................31
5.2 Outputs at the Serial Interface .......................................................32
5.2.1 Output Protocol ......................................................................... 32
5.2.2 GPS Messages ......................................................................... 32
5.2.3 BFI57-specific Output Messages............................................... 32

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
Document-No.: 08.510.010.71e/ Revision:
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1 INTRODUCTION
This manual contains information about the physical, mechanical and
electric qualities and the description of installation and operation of the
basic flight instrument BFI57.
1.1 Symbols
Vital information that if not followed may cause damage in
the device or in other parts of equipment or may have a
negative impact on the correct function of the device.
Information
1.2 Customer Service
For fast handling of returns please follow the instructions on the form for
complaints and returns provided in the service area of the f.u.n.k.e.
AVIONICS GmbH website www.funkeavionics.de.
Suggestions for the improvement of our manuals are
welcome. Contact: [e-mail].
Information about software updates is available from
f.u.n.k.e. AVIONICS GmbH.
The description of the update
procedure can be found in chapter 3.9.

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Operation and Installation
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1.3 Device Overview
The BFI57 is a compact display unit presenting the basic flight
informations in one single unit. Thanks to it’s integrated battery and
sophisticated charge management, besides for minimum instrumentation
it also can be used as aircraft-power independent backup-device for
ultralights with glasscockpits.
The integrated GPS receiver allows automatic QNH determination with
one single key press – if you like, even without any further interaction
whenever powered up, so that pilot’s action can be reduced to switching
on and off.
The automatic timing of the last flight supports the pilot in filling out his
flight log; returning to the home airfield is assisted by displaying direction
and distance.
The output of the pressure derived measurements and GPS positions on
the serial interface allows the use of the device as secondary
(redundant) sensor for glascockpits or other displays.
As the device can be configured for automatic starting whenever power
is applied, it additionally can be used as sensor for automatic flight data
collection; in this case, the device prevents being switched off manually.

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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2 OPERATION
2.1 Operation Controls
selection of
device settings
SET
QNH +
short: increase QNH
manually
long: start automatic
QNH
QNH
−
short: decrease QNH
manually
long: set QNH to
standard 1013
adjust display
illumination
DIM
ON/OFF
INFO
select
contents of
third line
in settings menu:
change selected setting

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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Switch ON (press 1 sec, display may be somewhat delayed),
Switch OFF (press long),
Restart (press 10 seconds)
Toggle between Normal and Setup mode
Selection of three different display illuminations
HI LOall white / no grey
Change between the different pre-defined contents of the
third line
Normal Mode:
- short keypress: decrease QNH manually
- long keypress: select STD QNH 1013 hPa / 29,92 inHG
Setup Mode:
- Adjusting and selecting values
Normal Mode:
- short keypress: increase QNH manually
- long keypress: start AUTOmatic QNH determination
Setup Mode:
- Adjusting and selecting values
2.2 Switching ON/OFF
Depending onto the configured power-on behaviour (see 3.8.1), the
device is either turned on manually, or it automatically turns on when
aircraft power is applied.
After switching on, the following splash screen appears (may be
somewhat delayed):
e.g.
Company Logo
Device Type
Software-Version
Batterymanagement-Firmware-Version
If the capacity of the battery is significantly reduced due to aging, a “Bad
Battery!” message is indicated on the splash screen.
In this case the battery should be exchanged as
soon as possible, as otherwise the autonomous
operation cannot be guaranteed!
The device can be rebooted with pressing of for about 10s.
f.u.n.k.e.
BFI 57
f.u.n.k.e.
BFI 57

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Operation and Installation
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2.3 Display
After the splash screen the display changes into normal mode by default.
Another Display Mode is the Setup Mode. Both modes can be accessed
(toggled) with .
2.3.1 Primary Flight Information
While essential informations like airspeed, altitude, track and rate of
climb are displayed permanently, the content of the third line is selected
out of a predefined set (described in section 2.3.2).
Airspeed (IAS), Altitude (ALT) and Rate of Climb (RoC) are pressure
derived values; the altitude depends onto the selected QNH setting.
The units in which airspeed, altitude, rate of climb and the QNH are
indicated are configurable (see 2.4). It can be chosen from the following
units:
Speed (IAS)..............kt (knots) or km/h (kilometres per hour)
Altitude (ALT)...........ft (feet) or m (meter)
Rate of Climb (RoC).ft/min (feet per minute) or m/s (meter per second)
If altitude and rate of climb are given in ft or ft/min respectively, the last
two numbers are shown downsized. As the rate of climb is shown without
a unit designator the layout of the numerical value (last two digits
downsized) gives information on the unit used.
m/s (mps)
ft/min (fpm)
IAS Tape
Variable contents
(selectable with )
Vario-Tape
Indicated Airspeed (IAS) GPS Track (only when moving)
Rate of Climb
Barometric
Altitude
Grey tape
(flaps velocity)

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Operation and Installation
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The indication of the GPS track relies on the availability of the GPS
signal. In case there is no or bad availability the GPS track numerical
value is replaced by “---“.
When standing still (neither flying nor taxiing) no GPS track will be
indicated.
GPS reception (sufficient satellites available) can be
identified by the indications of GPS track and position (see
page 13).
Besides the numerical values of speed and rate of climb tape indicators
can be found additionally:
Tape indicator – Airspeed
The tape indication for the airspeed is located at the lower edge of the
screen. With respect to the colour bands printed on the device’s housing
below the screen one can determine aircraft specific velocity ranges.
Those ranges must be correctly defined in the device configuration (see
3.8.3).
Tape Indicator – Rate of Climb
The tape indication for the rate of climb is located at the right edge of the
screen. The range of the scale is adjustable from a pre-defined set of
values (see 2.5.2.6)
2.3.2 Elements of the Third Line
The variable content of the third line can be changed by pressing
several times.
After starting up the device, the third line shows the QNH and the
battery status by default.
The default view (QNH + Battery Status) can be accessed
from any of the following pages by a long keypress of
.

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Operation and Installation
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2.3.2.1Battery Indication
The battery symbol reflects the charge state of the battery. In case the
battery is not charging and the charge state is low, the battery symbol
will be depicted in white instead of grey. If the charge state becomes
critical, the symbol will additionally be inverted:
An arrow in front of the battery symbol indicates an active charging
process, a check mark the completed charging.
At temperatures significant below the freezing point (below −5°C/+23°F)
the charging functionality is reduced, and the battery state cannot be
determined correctly during charging. In this case the battery symbol
changes to the display , until the temperature rises again. Even in
this case, however, the discharging use (use of the device without having
aircraft power supply) is still possible.
At extreme temperatures (below
−15°C/+5°F and above
+45°C/+113°F) the battery cannot be charged, as otherwise
it would be damaged permanently.
The discharging use however (use of the device without
having aircraft power supply) is still possible.
2.3.2.2QNH Indication
The QNH indication gives the pressure setting, which is used fort he
determination of the baro-altitude. The unit of the QNH is configurable
(see 2.5.2.2). Additionally it is indicated whether the QNH was set
manually (M). or determined automatically (A).
The automatic QNH-dertermination is started by a
long press of gestartet; see (ch. 2.4) for
QNH management.
While the automatic QNH-determination is in
progress (this requires a valid GPS position), the numerical value fort he
QNH is substituted by „----“. During this indication the last QNH value is

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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(
in
flight
)
(
after landing
)
used; in case directly after being switched on this is the standard value
1013hPa / 29.92inHG.
2.3.2.3Flight Time
After pressing the flight time is indicated. During flight the
duration airborne is indicated, after landing additionally the start and
landing time are given (in UTC).
Starts and landings are defined by the configured aircraft
minimum velocity (lower limit of the green or white colour
band, see 3.8.3.1 and 3.8.3.5).
2.3.2.4Return-Home Aid
After pressing again – when having GPS reception – the distance
and true direction to the configured home airfield (see 2.5.2.9) are
displayed.
2.3.2.5Groundspeed
After pressing again the groundspeed is shown in the third line.
The groundspeed is always shown in the same unit as the airspeed (IAS)
is indicated. This unit is configurable to be km/h or kt (see 2.5.2.7).
In case GPS is not available, the groundspeed cannot be determined
and the numerical value is replaced by “---“.

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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2.3.2.6Position (Latitude and Longitude)
After pressing again the GPS coordinates are shown. At first the
Latitude will be displayed. Pressing once more shows the
Longitude.
The format in which the coordinates are given be configured to be either
Degree°Minute’Second’’ or Degree°Minute.Centiminute’ (see 2.5.2.8).
In case there is no GPS available, the position values are replaced by
“---“.
2.3.2.7Time (UTC) After pressing again
the time is
indicated (in UTC).
In case GPS is not available, the time cannot be
determined and the indication is replaced by
“----“.

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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2.4 Operation of QNH (Manually and Automatically)
The QNH can be set using three methods:
1. Manually by entering values with short presses of .
2. Manually set tot he standard value 1013 hPa / 29.92 inHG with al
long press of .
3. By automatical determination from comparison of the measured
static pressure with the GPS altitude. This is started with a long
press of . The QNH will now be determined once. To
repeat the automatic determination, it has to be started again.
The GPS altitude has an inaccuracy of typ. < 80ft (25m).
The automatic QNH determination requires having a valid GPS position.
For this position the devices waits a predetermined duration. If no GPS
position could be determine during this duration, a notification is
displayed shortly, and the QNH value from before starting the failed
determination is continued to be used.
Whether the automatic QNH determination was successful, can be seen
by the updated QNH mode display:
AThe QNH has been determined automatically.
MThe QNH could not be determined automatically, or it was
set manually.

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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This is depicted in the following diagram:
As the vertical pressure gradient (the decrease of the static
pressure with increasing altitude) varies with the weather,
the
automatic QNH determination is most accurate close
to the ground
in vicinity of the destination airport. If the
automatic has been activated in greater altitudes, shortly
before reaching the traffic circuit altitude another activation
should be performed, to correct possible inaccuracies.
The device can b
e set to perform the automatic QNH
determination automatically once each time after being
turned on (see 2.5.2.1).
With this, for short flights no interaction is required at all!
Start of the automatic QNH determination
by long pressing
GPS position OK
No GPS reception
device tries to
determine QNH
from GPS
position
shortly
indi-
cated
new QNH,
with mode Aold QNH, with mode M

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Operation and Installation
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For cross-country flights the QNH can be handled as follows:
(1)
After being
switched on /
before start
determine QNH
automatically automatically or
by a long press of
(2)
Crossing the
Transition Altitude set to 1013 hPa /
29.92 inHG STD,
to fly Flight Levels
by a long press of
(3)
Going below the
Transition Level determine QNH
automatically, to
fly MSL
by a long press of
for approximately
setting the QNH
or manually using /
(4)
Before reaching
the traffic circuit
*)
determine QNH
automatically by a long press of
*)
Even if at (3) the automatic determination already has been performed,
it should be activated again at (4) shortly before reaching the traffic
circuit, as the vertical pressure gradient may deviate from the ICAO
normal atmosphere, what potentially decreases the accuracy of the
QNH determination at the large altitude of (3).
4
3
2
1
MSL:
QNH
FL:
STD
1013
traffic circuit
B
A

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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2.5 Settings
In the settings menu several options regarding the indications on the
screen in normal operation can be adjusted:
- Activate the automatic QNH setting once each time when being
turned on
- Units of Airspeed (km/h or kt), Altitude (m or ft), Rate of Climb (m/s
or ft/min)
- Scale range of the Rate-of-Climb-Tape
- Format of the GPS-Position (Latitude / Longitude)
2.5.1 Layout of the Setting-Mode
Within the setting mode the third line is used to display and select the
setting options.
From normal operation mode the settings mode can be accessed by
pressing long.
While in setting mode the different settings can be stepped through by
pressing .
Any adjustment or selection of values is done with the setting buttons
. Currently active settings are marked with a white underscore.
The setting mode can be left by stepping through the complete set of
settings or can be exited earlier by pressing .
Changes in the settings are stored and activated promptly
,
no separate confirmation is required.
setting options
(selectable with )

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Operation and Installation
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2.5.2 Setting Options – Step by Step
2.5.2.1Activate the Automatic QNH Setting Once each Time when
being Turned On
This option allows to define whether the device
initiates one automatic QNH determination each
time after being turned on, or not.
In both cases the device starts with using the
standard QNH 1013 hPa / 29,92 inHG.
The automatic setting of the QNH requires GPS availability, because the
GPS altitude is used as a reference for determining the QNH. If no GPS
position could be determined within a fixed time interval, the standard
QNH is continued to be used, see p. 15.
2.5.2.2Automatic Flight Time Display after each Landing
It is possible to select having the flight time
displayed only after being selected manually
(“man”) or additionally automatically after each
landing (“land”).
2.5.2.3QNH – Unit The QNH can be given in Hektopascal (hPa) or
inch of mercury column (inHG).
The selection of the settings is done with the
keys .
2.5.2.4Altitude – Unit The altitude can be provided in feet (ft) or in
meter (m). An additional cue for the values
given in feet (ft) are the downsized last two
digits.
2.5.2.5Rate of Climb – Unit
The rate of climb is provided either in meter per
second (mps) or in feet per minute (fpm). The
selected unit is reflected by the respective
format of the numerical value:

BFI57 / P/N BFI57-(xxx)-(xxx)
Operation and Installation
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fpm no decimal digit, last two digits downsized
mps one decimal digit, all digits same size
2.5.2.6Large and Small Scale for Rate of Climb Tape Indication
Depending on the selected unit the rate of climb maximum scale value
(second marking) can be chosen to be ± 1000 ft/min resp. ± 5 m/s or to
be ± 2000 ft/min resp. ± 10 m/s.
2.5.2.7Indicated Airspeed (IAS) – Unit
The airspeed is either provided in km/h or in kt.
2.5.2.8GPS Position – Format
There are two different formats in which the
GPS coordinates can be displayed.
MS Degree°Minute’Second’’ 48°12’30’’ N
M.m Degree°Minute,Centiminute 48°12,50’ N
As this is the last option in the setting mode, the setting mode is now left
by pressing . The display changes back to the last selected
screen in the normal operation mode.
2.5.2.9Home Airfield – Geographic Location
When having GPS reception, the current position can be stored as new
home airfield location for the return-home aid. The successful operation
is indicated by displaying a check mark.
It is not possible to manually enter coordinates different from the current
position.