specifications, installation and operation instructions ... · troubleshooting and special tips...

BELITE ELECTRONICS is a Division of BELITE AIRCRAFT - Wichita, Kansas www.beliteaircraft.com E: [email protected] T: 316-253-6746

Item#: RGHD-020

Specifications, Installation and Operation Instructions for the Belite RADIANT G-Meter with Seven Second HistoryLAST UPDATED: March 2016

DISCLAIMER: Products from Belite Electronics are not designed to be used in applications where their failure would endanger safe flight or human life in any way. They are intended solely for use in VFR conditions. They are not certified to meet any Technical Standard Order, and are not produced under a Parts Manufacturing Authority (TSO / PMA). As a result, they are suitable only for use in experimental and ultralight aircraft, and in Light Sport Aircraft, if meeting the requirements of the respective manufacture.

WARRANTY: Your new Belite Avionics instrument carries a one year warranty. Please contact us at [email protected] should your product need warranty service. International warranty service will be charged $50.00US for repairs, which includes return shipping after repair. Payment must be received before service begins.

RETURN/REFUND INFORMATION: Must be returned in new, resalable condition within 14 days

CONTACT INFORMATION:

E: [email protected]: 316-253-6746

Belite Enterprises LLC2515 N. Cranbrook Ct. Wichita, KS 67226

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A New Generation of Digital Avionics

T: 316-253-6746www.beliteaircraft.com

The Belite RADIANT G-Meter is designed to show instantaneous G readings, along with a graphical display of the last seven seconds of flight experience, on intervals of ½ second.

As opposed to traditional needle (or even EFIS) G-Meters, this unique presentation provides the pilot with current and historical information. A very good use case application is watching G-Readings peaking and fading off while doing a ham-merhead turn. Another use case application is providing continuous visual feedback while performing a 60 degree steep turn – this should produce two Gee’s of force – how consistent are you in doing this basic flight task?

The RADIANT G-Meter provides pilots with very useful information.

FEATURES Brilliant daylight readable LCD display

Provides current Gee’s in bar height form and percentage form

Shows 7.5 seconds of history, so the pilot can see the trend instantly

Display is “sunglass friendly” -- bright; readable with polarized glasses.

Also provides continuous system voltage display

Works between -20C and +60C

RADIANT G-METER

SPECIFICATIONS Weighs 1.6 ounces (50 grams) Requires 8.5 to 14.5 volts @ 135ma @ full screen bright-ness. When screen is dim, power consumption of unit is approxi-mately 35ma.

Screen is non-polarized color LCD display TFT Active Matrix with resolution of 240 x 320 pixels across a 2.4” display. Some cor-ner and side areas of the display are not visible due to enclosure requirements.

Unit operating temperature between -20 and +60C, including LCD screen.

Accuracy of the unit is +/- 0.05 Gee, after calibration, at -1 and +1 Gee’s. Full scale accuracy is better than 0.25 Gee from -3 to +5 Gees.

Dimensions for screen cutout are shown below, see Figure 1.

Unit dimensions are 2.35” square with a thickness of 0.75”, not including connector height.

Screen display mode is transmis-sive, normally deep black. This means that in the absence of backlighting, you will not be able to read the screen.

Screen contrast ratio is minimum of 640.

Screen luminance is minimum of 450 cd/M2 at full brightness.

Screen viewing angle is up to 80 degrees.

Two tactile switch inputs are provided for programming and mode changes.

Gee level information is provided for the last 7 ½ seconds of flight.

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Radiant G-Meter with seven second history page 2


A new sample point is presented continuously. Voltage level information is provided for ship power. Voltage range is provided between 8 and 16 volts; guaranteed unit operating range is 8.5 to 14.5 volts.

Two connectors are provided for attaching power, probes, and dimming input. FIVE PIN CONNECTOR:

•GROUND,NC,ANALOGGEEOUT,POWERINPUT,BACKLIGHTDIMMER •WIRECOLORS:BLACK,none,none,RED,YELLOW

SEVEN PIN CONNECTOR: •GROUND,NC,ANALOGGEEOUT,+5VREGULATEDPOWEROUTPUT,DNCx3(DONOTCONNECTx3) •WIRECOLORS:BLACK,none,ORANGE,WHITE,none,none,none • WARNING: DO NOT ATTACH ANY EXTERNAL POWER INPUT TO THE +5V OUTPUT on the seven pin

connector. DOING SO WILL DAMAGE OR DESTROY YOUR UNIT.

SPECIFICATIONS CONT.

INSTALLATION Fits any standard 2.25” mounting hole. Use only the screws provided. DO NOT DRILL OUT HOLES FOR LARGER SCREWS. Doing so will void warranty!

Requires a voltage source between 8.5 and 14.5 volts. Power draw is 135 milliamps (backlight full on). Use with an external avionics power switch. Use with an external dimmer potentiometer (supplied).

The rear main external electrical connector has five wires: ground, none, none, power, and backlight input. (The colors are black, none, none, red and yellow, respectively.) Prior to installation in aircraft, the power connector may be snipped off and discarded. The ground must be connected to avionics (system) ground. The power must be connected to a voltage source between 8.5 and 14.5 volts. The backlight input may be connected to a variable voltage source, providing between 0 and 5 volts. Typically, this is supplied from the wiper of a potentiometer (included.) If left unconnected, the display will be full bright.

NOTE: DO NOT DRILL OUT THE CORNER HOLES. THIS WILL DAMAGE THE LCD MODULE AND VOID YOUR WARRANTY!

Figure 1: 2.25” Main Cutout. Four 0.170” mounting holes are on 2.625” diameter circle. Inner circle is 2.25”.

APPLICATIONS May be used to display Gee level information in experimental, ultralight and LSA aircraft (with manufac-turer approval.)

NON-TSO’d; non-PMA’d.

SWITCHES AND INDICATORS The main color LCD screen provides continuous graphic information to the pilot. Two tactile switches allow switching between the main screen and the Gee max / min screen. Two pseudo LED outputs provide status of: System Voltage, and Temperature.

FUNCTIONALITY This gauge provides real time fuel level feedback for Gee levels. The orientation is vertical to the unit. The unit must be installed vertical to the plane of flight.

The gauge also provides a 7.5 second history of Gee levels. A real time bar graph displaying current voltage is also provided by the gauge. This information is also provided numerically.

The gauge provides an analog output of Gee levels on pin 3 of the seven pin connector.

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INSTALLATION DETAILS After calibration, accuracy is +/- .05 Gee at -1 and 1 Gee. This may be verified by rotating the unit 180 degrees from vertical.

Absolute accuracy is 0.25 Gee from -3 to +5 Gees. Other ranges are available, contact factory.

OPERATION Turn the unit on. A screen will display containing your model num-ber. The screen will also show our company name, ‘Belite’, along with the part number.

If the display is dim, turn up the brightness using the included po-tentiometer.

After five seconds, the unit will automatically advance to the main display screen. Assuming it is vertical, it will soon look like this:

Now let’s describe the standard attributes of the main display screen.On the left side are two indicator blocks, which are labeled “V”, and “T”. They stand for Voltage, and Temperature.

The “V” provides system voltage status. Green is indicated for any ship power voltage between 11.5 and 14.0 volts; the indicator block turns yellow or red outside of this range. (This gauge will work fine with any voltage between 8.5 and 14.5 volts; this caution block is simply an advisory to you to check your battery, alternator or engine voltage regulator for failure.) In the above picture, the voltage block is yellow because ship voltage has slipped below 11.5 volts.

The “T” indicates that the internal microprocessor and display are within acceptable temperature boundaries. If the unit is too hot, the indicator block will turn red. If the unit is too cold, the indicator block will turn blue. (In extreme cold, below -20C, the LCD screen may not function at all, and you may not be able to see anything.)

The main blocks is the Gee level bar graph. The calibrations start at -3Gees (negative three Gees) at the bottom and range up to positive 5 at the top. Center is 1Gee, the normal condition of flight and life.The right side of the screen contains the linear bar graph and numerical display for ship voltage.The colors associated with the G graphs and current situation arrows correspond to the current fuel percentages.

Green – between -2 and +4 Gees. Red – All other conditions

WARNING: these color ranges may be meaningless to the aircraft you fly. Evaluate accordingly.

CALIBRATIONNow let’s learn how to calibrate the unit. Do this when your unit strays from an accurate representation of One Gee.WE STRONGLY RECOMMEND “PLAYING” WITH YOUR UNIT BEFORE INSTALLATION IN THE AIRCRAFT. THIS MAY BE DONE WITH A 9 VOLT BATTERY. BECOME FAMILIAR WITH THE UNIT BEFORE YOU BECOME FRUSTRATED WITH THE INSTALLATION AND PROGRAMMING.To calibrate, press both buttons simultaneously and hold them until the unit reboots. Do this under a One Gee environment, preferably when sitting on the ground with the unit correctly (vertically) aligned.The unit will reboot. It is now calibrated.

SECOND SCREENBy depressing the RIGHT switch for one second, the unit will advance to the second screen. It will show the Max, Min, and current Gee input in numeri-cal (non percentage) format.The current input will change as you change your Gee loading. Depress the CLEAR button (the right button) for five seconds and the en-tries will be reset to One Gee and the unit will return to the main screen.Or, briefly depress either button and the unit will return to the main screen without resetting the Max or Min.

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Here is the schematic diagram of a typical installation.

The left of the diagrams shows a master power source, typically +12V. It is switched and fused. The dimmer input is connected to the wiper on the included potentiometer. The seven pin connector provides a ground point and a regulated five volt power source for utilization with the potentiometer.

The blue wire provides an output for the internal analog Gee voltage value; it may be connected to a logging unit. Contact Belite for operational details of this voltage.

CIRCUIT DIAGRAM

TROUBLESHOOTING AND SPECIAL TIPSHere are some things to ponder when things aren’t working right, from basic to advanced.

1. Is the display turning on? If not, check to make sure that you are providing power and ground.

2. My screen is too dim…. Turn up the brightness on the potentiometer. If the potentiometer is discon-nected, your display will be very bright.

3. I’m flying in low light or dusk conditions, and my screen is too bright… Turn the brightness down on the potentiometer.

4. My unit is not showing 100% (it is high or low) at a one Gee condition…. Recalibrate your unit.

YELLOW

RED

NC

GNDBLACK

SWITCH

+12V

NC

NC

NC

WHITE+5V

BLACKGND

YELLOW

1A FUSE

FIGURE 4: G-METER

7 PIN CONNECTOR

5 PIN CONNECTOR

NC

BLUE

Note: Blue wire is analog G output.

A New Generation of Digital Avionics

Web: www.beliteaircraft.com

Email [email protected]

Phone: (316) 253-6746

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