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We
have an exciting
and highly
innovative range
of
Stratomaster 'Smart
Singles' (2.25 inch) digital
instruments.
These
extraordinary little instrument systems, have some
remarkable features.
To
begin with, these instruments aren't really singles at all ! -
as many integrate up to three instruments in the one little system
- all displayed at the one time, usually
in both numerical and bar graph format. Moreover, most 'Smart
Single' are able to display all parameters or just one. For example,
the Altimeter/VSI displays either as an altimeter or as a combo
showing both.
Each
instrument is highly configurable. For example, the altimeter
supports relative mode (altitude relative to some other altitude
- for example your airfield) or msl mode (above sea level). Units
can be feet or metres (ft/min or m/s for the VSI).
The
Smart Singles mini Engine Monitoring Systems (EMS) are even more
incredible little instruments. Imagine - a complete system for
engine monitoring in one 2-1/4" instrument !
 The
quality of these very powerful little instruments also leads the
industry - with custom made ABS plastic housings, lexan panels,
high quality graphics displays with back lighting, the
very latest ATMega RISC processors and the utilisation of high
quality components - for e.g.., the Altimeter/VSI uses the most
sensitive (and expensive) pressure sender available.
Brilliant
Little Displays!
All
of the Stratomaster 'Smart Singles' instruments feature displays
of excellent clarity which are easily readable from a distance
under any light conditions. Moreover, the display area is very
large relative to the overall dimensions of the instrument.
The
range of Smart Singles instruments and specifications (together
with manuals) are set out below.
Please Note: As we are constantly
seeking to incorporate improvements to our instruments, specifications
of instruments on this site may, from time to time, differ from
those of instruments delivered to clients. Such changes will almost
always be enhancements over earlier specifications.
Instruments
in the 'Smart Singles' range:
The
top performing digital altimeter. Range to more than 40.000
feet (may also be configured to display in metres). Absolute
as well as relative modes of operation. Accurate and high
resolution.
The
altimeter is available in two versions. A standard version
and an encoding version - allowing connection to a transponder
(and/or compatible GPS system).
 Standard
Altimeter (ALT- 1)
-
700 to 40,000+ ft range, 10 ft resolution, feet or metres
selectable, absolute (msl) and relative modes. Includes
a digital VSI display that can be switched off, if another
VSI is available. Local pressure in millibars or inches
of mercury selectable. Incorporates a static port.
Click
on image for a larger view
Download
the manual
for detailed information by clicking on the link below:
Altitude
Encoding Altimeter
(ALT- 2)
Specifications
as for ALT-1, but, in addition the ALT-2 incorporates
a RS- 232
serial output altitude encoder with a selection of protocols.
Supported are: Garmin/Trimble, IIMorrow and MGL.
Download
the manual
for detailed information by clicking on the link below:
ALT-2
Manual (PDF
format, Acrobat reader version 4.0 or later)
Some
Mode C transponders (like the Microair T2000) require
altitude information from the encoder in parallel format.
In such cases, our CNV- ALT2
serial to parallel converter will be required between
the ALT-2 and the transponder. This device converts the
serial altitude information to Gillman code in a format
compatible with mode-C transponders requiring the data
in that format.
Download
the manual
for detailed information on the serial to parallel converter
by clicking on the link below:
Vertical
Speed Indicator
(VSI-1)
Complete
your cockpit with a digital Vertical Speed Indicator
(VSI). The VSI-1 features both digital and analogue
displays, includes user calibration (for the
perfectionist) and is altitude compensated. Digital
range is ±10.000 ft/min (may
also be configured to display in meters/second).
Analogue range is ±2000 ft/min with logarithmic bar
graph display.
Click
on image for a larger view
Download
the manual
for detailed information by clicking on the link below:
Air
Speed Indicator
(ASI-1)
This
is a very good ASI, particularly when compared with the traditional
mechanical alternatives. Most mechanical ASI's do very poorly
at low  airspeeds
due to the tiny pressures available from the pitot tubes.
With our silicon sensors we have achieved good sensitivity
at the low end, whilst still ensuring excellent linearity
over the whole speed range. This simply cannot be achieved
with a mechanical solution.
Click
on image for a larger view
The
ASI-1 has a wide speed range of 14 knots to 220 knots with
speed displayed in both digital and analogue form (bar graph
- that can be configured for scale). Markers ('bugs') for
Vs (stall speed, dirty) Vf (maximum flap speed) Vno (upper
limit normal operating speed or maximum manoeuvring speed)
and Vne are programmable. Speed can be selected to display
in knots, km/h or mph.
It
also incorporates several additional unique and very useful
features:
An
automatic flight log that stores the duration
of the last twenty four flights;
A
duration of current flight since take-off display;
and
An
air-distance made good counter (re-settable).
The
ASI-1 also has a static port.
Download
the manual
for detailed information by clicking on the link below:
ASI-1
Manual (PDF
format, Acrobat reader version 4.0 or later)
Show me the price list !
Altimeter
and Air Speed
Indicator Combo
(ASX-1)
The
unique ASX-1 combines our excellent altimeter with
the wide range airspeed indicator of the ASI-1. This
instrument is the ideal solution for limited space
panels at an even more amazing price. Consider the
ASX-1  together with perhaps a EMS-503 or EMS-582 for an
unbeatable combination of utility, price, weight and
size.
The
ASX-1 altimeter/airspeed combo is a 2.25” instrument based
on a precision altimeter and a wide range, sensitive airspeed
indicator.
Photograph taken in low light conditions - display is actually black and white in normal and full sunlight conditions.
The
altimeter conforms to ANSI standard atmosphere rules from
–700 ft up to a minimum of 40.000 ft.
The
airspeed indicator can show air speeds from 14 to 220
knots. The airspeed indicator and the altimeter can interface
to a static port and the airspeed indicator is based on
a standard aviation pitot tube. The altimeter can display
altitude in feet or meters, local pressure can be set
in millibars or inches or mercury. The airspeed indicator
can be set to indicate speeds in knots, mph or km/h.
The
ASX-1 is the ideal instrument for installations were panel
space is at a premium.
Download
the manual
for detailed information by clicking on the link below:
ASX-1
Manual (PDF
format, Acrobat reader version 4.0 or later)
Show me the price list !
Two
models of our fuel management system
are available:
Fuel
Management System
(FF-1)
This
very powerful little unit contains both fuel flow and fuel
level functions. Fuel level can be obtained from a standard
fuel level sender and calibrated  similar
to our other Stratomaster instruments. Alternatively, fuel
level can be calculated from fuel flow. Also featured is;
an alarm output for low fuel level; and a fuel endurance
readout.
In
addition, the FF-1 includes a "total fuel used" accumulator
that can be reset to zero at any time. Fuel level is displayed
in bar graph form with digital readout of remaining fuel.
Fuel flow is displayed in digital form as quantity per hour.
Units can be set to litres, US gallons, Imperial gallons,
or pounds.
Photograph taken in low light conditions - display is actually black and white in normal and full sunlight conditions.
Download
the manual
for detailed information by clicking on the link below:
Also
available for download are the installation notes
for the fuel flow sender(s) which
is supplied with the FF-1 and FF-2. Click on the link below
to download the notes:
Fuel
Management System
(FF-2)
Specifications
as for FF-1, but, the FF-2 has two channels of fuel flow
and two channels of fuel level which can be calibrated independently.
It is also possible to operate the FF-2 in "differential
mode" with two fuel flow senders.
 This
feature is useful for tank return line systems that don't
allow plumbing the fuel flow sender into the "hot" part
of the fuel system. Specifically,
some engine installations that require a fuel return line
do not have a convenient place to insert a fuel flow sender.
Such installations can now also have fuel flow functions
using the FF-2 and two fuel flow senders. One sender is
fitted in the normal fuel supply line while another is fitted
in the return line. The fuel flow is then calculated as
the differential (hence 'differential mode') between the
two. Using two fuel flow senders may seem a little expensive
- but, compared to ordinary aviation fuel totalizers, the
cost is next to nothing.
The
FF-2 is also a good choice for single engined applications
with two fuel tanks or for twin engined aircraft.
Whilst
not a certified instrument - the FF-2 (like other Stratomaster
instruments) can be fitted to a certified aircraft, providing
that it does not replace an existing instrument and (in
Australia) a CAR 35 (Avionics) technician certifies that
the FF-2's fitment and operation will not adversely affect
the operation of other instruments or the aircraft more
generally.
Download
the manual
for detailed information by clicking on the link below:
Also
available for download are the installation notes
for the fuel flow sender which
is supplied with the FF-2. Click on the link below to
download the notes:
Rev
Counter/Hobbs Meter
(RV-1)
Like
other units in the Smart Singles range, this little unit
is much more than just a rev counter and hobbs meter. It
can be used as a dual rev  counter
for twins and includes a hobbs meter, maintenance timer
and a secondary, re-settable (rev based) engine running
timer (useful for flight schools that charge on engine time).
Read out is digital together with an analogue bar graph
(selectable scale).
Click
on image for a larger view
The
unit can also be used for Gyros/helicopters as a rotor speed
indicator (with extra gear tooth pickup from a pre-rotator
or hall effect sensor). It can be configured to operate
as both an engine rev counter and rotor speed indicator.
The
RV-1 features programmable pulses/revs to accommodate a
wide variety of engines and it accepts A/C coupled signals.
Download
the manual
for detailed information by clicking on the link below:
Turbine
Speed Monitor
(RV-2)
For
those with or contemplating
turbine power, we have just
introduced the RV-2. This
instrument monitors turbine
speeds up to 99,999 RPM  and
displays either RPM or relative
percentage to a value set
by the user.
For
example, for many turbines
N1 (turbine speed) is in the
40,000-50,000 RPM region and
you set the 100% mark somewhere
in that RPM band (depending
on the power rating of your
turbine installation). The
RV-2 then displays turbine
speed as a percentage - as
is usual with turbines.
The
RV-2 displays both N1 and
N2 (prop or fan speed) and
is much less expensive than
standard indicators.
Download
the manual
for detailed information
by clicking on the link
below:
Temperature
& Pressure (TP-1)
This
instrument replaces the PR-1 (oil or fuel pressure) and
TMP-1 (water
or oil temperature) instruments, combining the capacity
of both to become a very flexible temperature and pressure
display device.
 The
TP-1 can be used as oil or water temperature gauge
or an oil or fuel pressure gauge - in each case,
it can be configured to display both parameters at the same
time. The TP-1 can also be used as a combined oil pressure
and oil temperature gauge.
The
TP-1 interfaces with standard automotive pressure senders
and can be adapted to a wide range of sender types. For
fuel pressure, a standard automotive pressure sender can
be used in combination with the isolation kit available
from VDO.
For
temperature inputs, standard NTC type automotive senders
as well as our MGL Precision Temperature Probe (semiconductor
type) can be used. Using our senders, this unit is well
suited to displaying other temperatures, such as ambient
temperature using our remote probe or crankcase / gearbox
temperatures etc.
Alarm
output is standard and units are configurable for bars or
PSI (pressure) and degrees F or degrees C (temperature).
Senders are not included.
Download
the manual
for detailed information by clicking on the link below:
Aviation
G-Force
Meter (GF-1), tilt compensated, dual range:
The
GF-1 is a 2.25” instrument that displays the acceleration
forces acing on an aircraft. The GF-1 does not require mounting
exactly in the aircraft's vertical axis as it is able to measure
out of vertical forces.
Functions
in brief:
1.
Typical accurate range of 20G (from + 10G to - 10G);
2.
Records maximum measured forces in permanent memory (both
positive and negative);
3.
Two independent cycle counters record number of times a
preset force has been exceeded;
4.
Short term memory for maximum force encountered (typically
during a flight);
5.
Clearly readable numeric display (10 G range, positive and
negative);
6.
Graphic display of force acting on aircraft (range 0-6.5G,
positive and negative);
Download
the manual for detailed information by clicking
on the link below:
The
two axis design of the GF-1 allows its mounting in sloped panels
(i.e. where panel is not exactly vertical). It also has a quick
calibration function (using Earth's gravity) for operation at
temperature extremes.
'Smart
Singles' Engine Monitoring Systems:
To
ensure that nothing is done by half, Stratomaster is extending
the boundaries of small footprint instrumentation by introducing
the 'Smart Singles' mini Engine Monitoring Systems collection.
This will include the:
The
EMS-582: An
Engine Monitoring System for Water Cooled, 2-stroke Engines
The
EMS-582 is a full house, single instrument engine monitoring
system for water cooled 2-stroke engines. Originally
configured only for the Rotax 582 DCDI, the EMS-582
has now been upgraded to incorporate a programmable
rev counter and extended temperature ranges to makes
it  suitable
for all makes of water cooled two stroke engines, including
Hirth and 2SI.
Imagine
- a complete system for engine monitoring in one 2-1/4"
instrument at the usual world beating Stratomaster prices
(including probes). The ultimate low cost EIS ?
Click
on image for a larger view
The
EMS-582 incorporates the following features:
Digital
rev counter, Water temp bar graph with digital read
out and alarm, 2 x EGT bar graphs with digital read
out and alarms, 2 x CHT bar graphs with digital read
out and alarms, hobbs meter and flight timer. The instrument
can be configured to display only coolant temperature
and EGT temperatures (as shown above), or to display
coolant temp, EGT and CHT. In the latter configuration,
the CHT readings will alternate with the EGT reading
every few seconds. The system is configurable to display
degrees F or degrees C.
The
EMS-582 also includes the required probes:
2
x EGT (Rotax 8 x 1 mm thread) and a water temperature
probe. Two
additional CHT probes can be fitted, but, these are
optional and are not included in the package.
Download
the manual
for detailed information by clicking on the link below:
The
EMS-503: An Engine Monitoring
System for Air Cooled 2-stroke Engines
The
EMS-503 is a full house, single instrument engine
monitoring system for air cooled 2 -stroke engines.
Originally configured only for the Rotax 503 DCDI
engine, the EMS-503 has now been upgraded to incorporate
a programmable rev counter and extended temperature
ranges to make it suitable for all makes of air cooled
two stroke engines such as those from Hirth and 2SI
(as well as single ignition Rotax 503's).
 The
EMS-503 includes the following features:
Digital rev counter, 2 x EGT bar graphs with digital
read out and alarms, 2 x CHT bar graphs with digital
read out and alarms, hobbs meter and flight timer.
The system is configurable to display degrees F
or degrees C.
Click
on image for a larger view
The
EMS-503 also includes the required probes: 2
x EGT (Rotax 8 x 1 mm thread) and 2 x 14 mm CHT probes
(need to specify other plug sizes when ordering).
Download
the manual
for detailed information by clicking on the link below:
The
TC-1 is a configurable EGT/CHT four channel display. It
can be used as single channel, dual channel, three channel
or four channel display  unit.
Each input can be used to display a CHT or EGT channel.
Probe types can be configured for standard thermocouples,
J or K types.
Click
on image for a larger view
The
display for each channel includes a bar graph (scale programmable)
and a digital readout. Each channel can have a temperature
alarm programmed. The unit includes an uncommitted relay
contact output that can be used to switch an alarm light
or buzzer as required.
The
TC-1 does not include probes. Select these as required
for the application from our range or use your own probes.
Download
the manual
for detailed information by clicking on the link below:
Manifold Pressure Indicator 3.5" (MAP-1)
The MAP-1 is a precision pressure gauge which can measure pressures in the range from 0.25 bars (3.6 PSI) to 2.5 bars (36.2 PSI). Pressure can be displayed in units of millibar, bar, PSI, Kg/cm2, inches of Mercury, millimetres of Mercury, kilopascal (KPa) or atmospheres.
 The MAP-1 is primarily intended for use as a manifold pressure gauge, however, this accurate instrument can be used for many other applications as well.
Typical applications:
Engine manifold pressure, Turbo boost pressure, Barometer, fuel or oil pressure gauge (with additional isolation kit), pressure reference, airfoil research and testing.
Download the manual for detailed information by clicking on the link below:
Real Time Clock & OAT 2.25" (RTC-2)
The RTC-2 is a 2.25” format aviation Real Time Clock featuring a two time zone system, stopwatch, timer, alarm and OAT (Outside Air Temperature) display.
It is primarily intended to show UTC time (also known as Greenwich Mean Time, GMT or Zulu time) together with a local time to facilitate ordinary ATC time reporting. Each time zone may be programmed with an additional hour offset to allow for summer time or similar variances. Local offsets may be added or subtracted. Stopwatch and Timers can be operated simultaneously to a programmable alarm, making the RTC-2 particularly suitable for sport flying competitions.
OAT can be shown in either degrees Celsius or degrees Fahrenheit. The RTC-2 can be set up to
alternate between the time functions and the OAT display.
Time is maintained by an internal 10 year lithium battery, which can be replaced by the user.
Download the manual for detailed information by clicking on the link below:
Battery Supply Monitor 2.25" (BAT-1)
Not currently shipping
due to the unavailability of key components
The BAT-1 is used to monitor your aircraft's battery supply and can be
used with lead-acid, NiCad and gel cell batteries. The BAT-1 is invaluable for
determining your battery’s health, charging status, as well as the current load  consumption of
your aircraft.
The BAT-1 can measure voltages up to +30V and can measure charging/discharging currents of
up to 20A (Shunt dependant).
Download the manual for detailed information by clicking on the link below:
Fitting
your Smart Singles
Instruments
All
Smart Singles instruments have the same size, octagonal
shaped, panel cut out.
Download a copy of the AV-1 dimension data (including cut out size) by clicking on the link below:
Smart Single dimension data singlesize.pdf (File size 32KB) 
After the cut out is made, each instrument is mounted into the panel from the front - by sliding the unit into the cut-out until the rear face of the instrument's hexagonal shaped front panel bears against the instrument panel. It is then secured with 2.5 mm to 3 mm (shank diameter) bolts or screws - like those which we can supply (see below).
The
position of the holes for the screws which secure the instrument
to the panel can be marked by carefully rotating a 3 mm
drill in each of the four holes, removing the instrument,
centre punching the positions and then drilling the holes.
Whilst the holes are marked on the template, using the instrument
to finally position the holes is suggested.
The
instrument can then be reinserted and secured to the panel
with four machine screws - knurled Allen key headed black
machine screws are very effective and attractive. Do not over tighten the screws/bolts used to fasten the instruments, as doing so may fracture the housing - the nylock nuts or Loctite (see below) will prevent the screws/ bolts from loosening.
Depending on
the panel material, (alloy or otherwise) and its thickness,
the holes can be tapped (threaded) to suit the screws -
which can be secured with Loctite. Where this method is
unsuitable, the use of nylock nuts (anchored or otherwise)
is an obvious alternative - noting that unanchored nuts
would require accessing the rear of the panel. Alternatively,
metal anchor plates can be quickly and easily fabricated,
tapped and fixed to the rear of the panel to retain the
benefits of front removal and insertion, without the need
to access the rear of the panel.
Placing
(and removing) each instrument in position from the front
of the panel is usually faster and more convenient than
the more conventional rear insertion method.
The octagonal
panel cut out may take more time than round holes (using
hole cut out equipment). However, where a number of Smart
Singles are being fitted - the way to go is to fabricate
a simple template and use an router fitted with a strait
cut bit fitted with a ball bearing (to track the template).
With a well made template and a little care, this method
is both fast and effective with a result equal to that achieved
with a laser cutting machine.
However
you choose to make the cut outs for your Smart Singles instruments
it is important that they be accurate (so as to neatly
fit the the housing), as each instrument's front panel overhang
(or overlap) is not large (approx. 2 mm). Over size, or
out of shape cut outs may result in a 'gap' showing beside
the instrument and/or leave little material for the mounting
bolt holes.
Wiring Your Instrument:
Instructions on installation and wiring your instrument(s) are provided in the installation section of the user manual, included with each system. Please read these instructions carefully, as we have found that the vast majority of owner queries are about issues already covered in the manuals. If you happen to misplace your manual a copy can be downloaded or printed from our web site.
Two installation issues to particularly note are:
1. Ensure that the positive (+) supply wire from the aircraft's 12 Volt power supply is connected to the positive (+ 12 V) terminal on the rear housing of your instrument. It must not be connected to the adjacent negative (-) or ground terminal. If this does occur, the instrument will be damaged and no longer operate (such damage is not covered under warranty).
Some instruments (like Maxi Singles) source power (and other data inputs) through wires to a plug(s) inserted into a socket on the instrument's rear housing. In this case, the (-) or ground connection is a black wire emerging from the plug and the positive (+) connection is a red wire emerging from the plug. The positive (+) supply from your power supply must be connected to the red wire emerging from the plug. It must not be connected to the black wire [negative (-)] emerging from the plug.
2. Also ensure that the 12 volt light bulb/lamp (or LED), used for the visible alarm indication, does not exceed the maximum permissible load stated in the manual (generally a maximum rating of 1 Watt - see more detail below). Exceeding the maximum permissible wattage rating will cause the alarm relay contacts to fuse together and the external alarm light indication function will no longer operate (such damage is not covered under warranty).
Alarm contact permissible load data:
Maximum permissible current through alarm contacts: 500mA.
Maximum permissible voltage over alarm contacts: 50V.
Typical load for alarm contacts: 12V/1W lamp.
Allen
Key Headed Bolts
We have these attractive black or stainless steel machine bolts to fix your Stratomaster instruments to the panel. These small Allen key socket,  round headed bolts have 2.5 mm x 12 or 20 mm shanks and nicely complement our Maxi (20 mm length) and Smart Singles (usually 12 mm length) instruments and come with matching Nylock nuts.
Please
specify if you would like to have these added to your instrument
order.
Please
Note:
Operation
of Stratomaster Singles Instruments is the responsibility
of the pilot in command of the aircraft. The
pilot in command has to make himself/herself familiar with
the operation and limitations of the Stratomaster Smart
Singles instrument(s) before commencing ground or flight
operations. Under no circumstances does the manufacturer
condone usage of this instrument for SFR flights.
These
instruments are designed for use in ultralight, microlight,
experimental and homebuilt aircraft as well as
any aircraft that permit use of such (non certified) instrumentation
under general or special operating permits.
Stratomaster
Singles Instruments
have Not been submitted to CAA or FAA or any of its
agencies (or any regulatory authority in any other country)
for any form of certification. Operation
and installation of these instruments is subject to the relevant
rules and regulations of your country and flight authority.
If
any of the above is not acceptable to the pilot in command
he/she must refrain from operating the aircraft or remove
any Stratomaster
Singles Instruments
from the aircraft before commencing aircraft operations.
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