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Electrical Analog Meter
Movements Still AvailableMovements Still Available
PREFAG Offers Moving Coil Meter
Movements Also For Repair / Exchange
Time / cost pressure to change from
classic analog to glass cockpit
� Reasons:
� Meter movements are obsolete
� Available meter movements are extremely expensive
� Poor service of many instrument/meter movement� Poor service of many instrument/meter movement
manufacturers
� More and more instrument OEM go out of this
business thus the pressure rises even more
207/2008
Changing the analog cockpit to glass
� This means for the owner:� This means for the owner:
� High investment
� Down time of aircraft
� To get used to new equipment
� New and costly training is required
� Where required high approval cost
� Many owners still prefer the analog cockpit
� There is a way out of this dilemma307/2008
PREFAG offers moving coil meter movements
for aircraft applications
� We provide PREFAG design replacement of the meter
movement for your instrument
� Solutions already designed for many commonly
known movementsknown movements
� If required, partners in the US and Europe can do the
instrument integration or support the PMA and process
spec. procedures
407/2008
PREFAG – more than 50 years experience in
moving coil meter movements
� All major instrument manufacturers have placed series or prototypeorders resp. have running integration projects with PREFAG:
� Germany: Diehl Avionik, Entrak, MTK, German Airforce, Grob
� Spain: Casa
� France: Thales, Thales CLI, Intertechnique, Faure Herman, Falgayras
UK: Weston Aerospace*, Smith Industries*� UK: Weston Aerospace*, Smith Industries*
� Italy: Farem, Galileo Avionica*
� USA: MCI, AAIC, Ametek, Moog Components Group (Litton), Hickok*,
Horizon-Flight Line (Lewis Engineering), Phaostron, L3 Communications
* Components and/or meter movements
507/2008
PREFAG – more than 50 years of experience in
moving coil meter movements
� PREFAG meter movements are used today in many aircraft in:
� General Aviation � Turbo Prop
� Commercial Aviation � Helicopter
� Military � Jet
� Military Jet� Military Jet
� With this, PREFAG can be THE partner for replacement metermovements needed by the MRO industry for avionics and indicators
* Please see the „applications list“ in our brochure
607/2008
PREFAG meter movements are flying
today in functions as:
� Double Indicator – Oil pressure and temp
� Triple Indicator- NR/NTL
� Triple Indicator – Brake system
� Artificial horizon as glide slope indicator or NAV, G/S warning flag
� Flap position indicator
� Mass moment indicator (in project), or NR rotor indicator
� Fuel consumption, quantity, pressure and/or temp indicator
� Waste water indicator, and/or cabin temp indicator
� Oxygen indicator for liquid oxygen
� Volt and Ampere meter, ….. and so on
707/2008
PREFAG holds a fully integrated
quality assurance system
� ISO 9001: 2000 certified
� EASA Part 21G certified
� No other meter movement manufacturer and only few instrument manufacturers
have such aviation certification
� All aviation related documents marked for special awareness
� Digital image processing test stand, for 100 % documented tests of:
� Linearity
� Friction
� Resistance and sensitivity
� Pointer balance
� Adhesion to pointer stop807/2008
PREFAG holds up a fully integrated
quality assurance system
� All meter movements in principle are capable to meet the requirements of MIL-PFR 10304 F, MIL-STD 202 F, MIL-STD 810 F and RTCA DO 160 D testing – depending on case design
� Solder joints in accordance with to IPC-A-610� Solder joints in accordance with to IPC-A-610
� Video supported pivot end-play adjustment
� Full marking of each movement also with your reference
� Risk analysis of all components of meter movements
907/2008
PREFAG holds a fully integrated
quality assurance system
� All movements min. class 2 %
� For most designs class 1 % possible
� Full material traceability down to the raw material
certificates of any componentcertificates of any component
� Initial Sample Inspection Report (ISIR) for all new products
� Environmental test facilities available
1007/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� PREFAG movements can be adapted to your instrument‘s mechanical
and electrical requirements
� Volume defining parts are machined in most designs for high
adaption/modification flexibility
� Alternatively, base and scale adapters can be made in any technology� Alternatively, base and scale adapters can be made in any technology
� All other components remain unchanged as „mass production items“, thus
� Lower design and component cost
� High reliability due to known design
� Quick turn around time on prototypes for approval support
1107/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� Wide angle
� 240° for 2222 2“ case
� 250° for 2222 1,25“ case� 250° for 2222 1,25“ case
� 230°/240° for 2222 1“ case
1207/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� Wide angle
� 170° for 2222 1“ case
original
� Or as dual-movement movement
side-by-side in 2222 2“side-by-side in 2222 2“
case with .5“ distance
PREFAG replacement
movement 1307/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� Short angle
� 90° from 2222 .66“ case
� 110° for 2222 1“ or 2“ case
− both as on-off flag or
with linear measuring dial
1407/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� Edge wise
� 60° with .5“
profile height
1507/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� Multiple movement combinations
� e. g. dual 240° for 2“ case with same center of rotation
1607/2008
PREFAG offers an unique and flexible range of
moving coil meter movements
� Multiple movement combinations
� e. g. dual 170° for 2“ case
� e. g. triple 110° for 2,5“ case
1707/2008
PREFAG movements offer unique quality
and life-time relevant features
� Suspension� All pivot and spring loaded jewel
� Tungsten carbide vs. sapphire
� Radii and spring rate optimized for aviation
� No taut bands that could break in transport or operation
� Damping� Damping� 5 different coil form materials
� Short-cut coil for damping if needed
� Moving element alignment� Self-centering crimp-on pivot holder
� Fixture oriented riveting of pointer arm to pivot holder
1807/2008
PREFAG movements offer unique quality
and life-time relevant features
� Pivot end play� Play free and vibration proof thread of bearing in POM zero adjuster
bushing
� Video supported adjustment
� Insulation� Both, springs and zero adjusters insulated� Both, springs and zero adjusters insulated
� Coil formers anodized or coated for insulation
� Screw and press-fit locking� Loctite with UV-Tracer for inspection used on:
− Magnet-press-fit section of wide angle movements
− All mounting screws
1907/2008
PREFAG offers product AND service
� Most modern organization of production work flow by
One-Piece-Flow
� Efficient production of series as well as one-off‘s
� Product families, only the exotic component need stocking for quick � Product families, only the exotic component need stocking for quick
response to market needs
� Standard lead time after approval and agreement 4 weeks
− 1 week possible for a premium
2007/2008
PREFAG offers product AND service
�� Efficient cost control through KANBAN
� Low stocking cost for all parties
� Low stocking risk on exotic items – only components need to be
stocked - due to one-piece-flow
� Quick turnaround on new item prototypes to support�
approvals
� Volume defining parts in most designs machined for adaption flexibility
− Other components remain “mass production items“
− Thus lower design cost
2107/2008
PREFAG, the movement manufacturer
partnering up with repair stations
� Since PREFAG “only“ does the movement – with or without dial
� We do not hold approvals for use of these movements in
existing instruments/aircraft
� Here, the cooperation with repair stations or DO‘s comes into
the picturethe picture
− PREFAG technically supports repair stations or Design
Organizations (DO) with prototypes and design to obtain PMA‘s
or process specs for instruments to be equipped with PREFAG
movements2207/2008
PREFAG, the movement manufacturer
partnering up with repair stations
� As no single repair station or DO can afford to obtain PMAs for all
instruments in case of service problems:
� The PMA shall be brought into a loose network of repair stations to
exchange products
� PREFAG produces the meter movement and only provides references.� PREFAG produces the meter movement and only provides references.
Thus the:
• Cost of certification is split between several repair stations
• Quantity to pay back the investment is multiplied
• Future for repair stations of analog instruments is secured
2307/2008
PREFAG, the movement manufacturer
partnering up with repair stations
� Advantages of a partnership between the repair station or DO and PREFAG are:
� Reduction of maintenance cost for aircraft owners through costreduction of instrument repair
� Improved service and turnaround times for aircraft owners
� The larger the „network“ gets, the more exotic problems can be solved
� Repair stations secure their market by holding PMAs and / or � Repair stations secure their market by holding PMAs and / or „process specs“
� Reduced drive for owners to change to glass cockpit
� Future of repair station is secured
� Larger production quantities of meter movements for futureoriented costing
2407/2008
Who and where is PREFAG?
� Located in the south-west of Germany near Stuttgart/Frankfurt/Heidelberg� Located in the south-west of Germany near Stuttgart/Frankfurt/Heidelberg
� 240 employees generating € 22m. revenues
� 50% growth over 5 years
� Investing 10 % of revenues in growth and modernization
� PREFAG is solidly financed
� Pays its bills within 25 days average� Pays its bills within 25 days average
� Producing:
� Components for electrical analog instruments for aviation, tractionand industrial use
� Custom made components for pneumatic and hydraulic systems in automation and automotive applications
2507/2008
Who and where is PREFAG?
� Privately held company belonging to the privately held
� Magnet-Schultz-Group:
1800 employees generating € 250m. revenues
� Through our sister company Magnet-Schultz of America in
Westmond, IL, we could – where required – operate as a US company
and provide e. g. safety stock facilities there
2607/2008