KMC Clock RCA 2600 3 User Manual

KMC PUBLICATION NO. 1401-1  
RCA 2600 SERIES  
ELECTRIC DIGITAL HORIZON  
INSTALLATION/OPERATION GUIDE  
DIM  
2
DIM  
0
1
0
2
0
1
0
1
0
2
0
1
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3
2
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3
0
RCA 2600-3  
RCA 2600-2  
P/N 102-0203-01-01  
P/N 102-0203-01-02  
P/N 102-0202-01-01  
P/N 102-0202-01-02  
KMC  
KELLY MANUFACTURING COMPANY  
KELLY MANUFACTURING COMPANY  
(316) 265-6868  
FAX (316) 265-6687  
KELLYMFG.COM  
555 SOUTH TOPEKA  
WICHITA, KS 67202  
Rev C  
 
KMC  
RCA 2600 Series Installation/Operation Guide  
KELLY MANUFACTURING COMPANY  
SECTION 1: INSTRUMENT DESCRIPTION  
1.1 GENERAL DESCRIPTION  
An attitude indicator, also known as a gyro horizon or artificial horizon, is an instrument used in an aircraft to inform the pilot of the  
orientation of the airplane relative to the earth. It indicates pitch (fore and aft tilt) and bank (side to side tilt), and is a primary instru-  
ment for flight in instrument meteorological conditions. Attitude indicators also have significant applications under visual flight rules.  
The RCA 2600 Digital Electronic Attitude Indicator receives digital information from a series of accelerometers which is processed  
to actuate a display that has two dimensions of freedom, simultaneously displaying pitch and bank. The display is colored to  
indicate the horizon as the division between the two colored segments (blue for sky and brown for ground), and is intended to be  
intuitive to use. The actual bank angle is calibrated around the circumference of the instrument dial. The pitch angle is indicated by  
a series of calibration lines, each representing 5° or 10° of pitch. Unlike digital multifunction type displays, the RCA 2600 display is  
not cluttered with additional information so that the pilot has instant attitude recognition.  
Because the RCA 2600 has no mechanical gyroscope, it is much more stable than traditional horizons. The unit is designed to  
work in 360 degrees of pitch and roll and, unlike a mechanical unit, the RCA 2600 can tolerate angles in pitch and roll that would  
cause a gyroscopic unit to tumble.  
On the attitude indicator you will see two yellow horizontal lines with a dot between them. The horizontal lines represent the wings  
and the dot represents the nose of the aircraft. If the symbolic airplane dot is above the horizon line (more blue background) - the  
aircraft is nose up. If the symbolic airplane dot is below the horizon line (more brown background) - the aircraft is nose down.  
When the dot and wings are on the horizon line, you are in level flight. If the lines representing the wings roll to the left or the right,  
the aircraft is probably starting a turn.  
1.2 PHYSICAL DESCRIPTION  
The RCA 2600 indicator is a direct reading instrument which provides a visual display of aircraft pitch and roll in reference to the  
horizon. The instrument utilizes a series of accelerometers and complex mathematical formulas to determine pitch and roll. There  
is no external inputs to the instrument. Refer to table 1.1 below for leading particulars. There are two basic models of the RCA  
2600 Series; the RCA 2600-2 which is the 2” version and the RCA 2600-3 which is the 3” version.  
OPERATING VOLTAGE.......................................................................................................................................... 9 to 32VDC  
STARTING CURRENT............................................................................................................ 9VDC: 0.18 to 0.22 AMPs MAX  
RUNNING CURRENT ......................................................................................(14VDC SYSTEM) ..................0.20 AMP MAX  
(28VDC SYSTEM) ..................0.15 AMP MAX  
CIRCUIT BREAKER SIZE............................................................................................................................................... 2 AMP  
SETTLING ERROR........................................................................................................... 1º MAXIMUM IN ROLL AND PITCH  
OPERATING TEMPERATURE RANGE.............................................................................................................-30º TO +50º C  
MATING CONNECTOR ........................................................................................................MS3116E8-4S OR EQUIVALENT  
WEIGHT ...........................................................................................................RCA2600-3 ........................................... 6.5 oz  
RCA2600-2 ........................................... 4.5 oz  
DIMENSIONS/PANEL CUTOUT....................................................................................................................... SEE FIGURE 1  
EYE VIEWING ANGLE ENVELOPE....................................................................Horizontal Left and Right: 35° Left, 35° Right  
Vertical Up and Down: 35° Up, 35° Down  
Minimum distance from display surface: 6 inches  
Maximum distance from display surface: 48 inches  
FAA SPECIFICATION CONFORMANCE..........................................................TS0-C4c, TSO-C113, DO-160F and DO-178B  
EASA SPECIFICATION CONFORMANCE................................................................................... ETSO-C4c and ETSOC-113  
MEETS OR EXCEEDS ..........................................................................................................................AS8034A and AS396B  
TABLE 1.1, LEADING PARTICULARS  
KMC Publication No.1401-1  
Rev C  
Page 3 of 10  
 
KMC  
KELLY MANUFACTURING COMPANY  
RCA 2600 Series Installation/Operation Guide  
3.37  
0.08  
1.10  
0.40  
DIM  
20  
10  
3.37  
10  
20  
30  
Ø 0.170 THRU  
(4 PLACES)  
D
C
A
B
DIM  
1.237  
(TYP)  
2
0
1
0
2.474  
(TYP)  
3.17  
1
0
A
B
C
D
GROUND  
9-32 VDC  
SPARE  
2
0
3
0
SPARE  
PANEL CUTOUT  
REAR MOUNTING  
RCA2600-3  
2.75  
0.12  
1.10  
0.40  
A
GROUND  
9-32 VDC  
SPARE  
DIM  
B
C
D
20  
10  
SPARE  
2.40  
10  
20  
30  
D
C
A
B
Ø 0.170 THRU  
(4 PLACES)  
0.928  
(TYP)  
DIM  
NOTE  
1.855  
(TYP)  
2
0
2.28  
1
0
All dimensions in inches.  
1
0
2
0
Mounting Hardware (both units)  
3
0
6-32 screw - 0.5” plus panel thickness  
Mating Connector (both units)  
MS3116E8-4S or equivalent.  
PANEL CUTOUT  
REAR MOUNTING  
RCA2600-2  
Figure 1.1, General Dimensions  
Page 4 of 10  
KMC Publication No.1401-1  
Rev C  
 
KMC  
RCA 2600 Series Installation/Operation Guide  
KELLY MANUFACTURING COMPANY  
1.3 DISPLAY FEATURES  
See Figure 1.2 below for typical display features. RCA 2600-3 shown.  
1
ROLL POINTER  
2
3
ROLL DIAL  
DIM  
6
PITCH DIAL  
20  
10  
HORIZON LINE  
5
SYMBOLIC  
AIRPLANE  
10  
20  
30  
4
SLIP INDICATOR  
Figure 1.2, Typical Display Features  
1. ROLL POINTER  
The Roll Pointer points to the degree of roll against the Roll Dial.  
2. ROLL DIAL  
The Roll Dial shows the degree of roll against the Roll Pointer.  
3. HORIZON LINE  
Indicates earth horizon relative to aircraft pitch and roll.  
4. SLIP INDICATOR (Option available for the RCA2600-3 and RCA2600-2)  
Also referred to as an Inclinometer, the Slip Indicator measures the relative strength of the force of gravity and the force of  
inertia caused by a turn; thus indicating whether the aircraft is slipping or skidding.  
5. SYMBOLIC AIRPLANE  
Represents the orientation of the aircraft’s wings and nose in relation to the horizon. The dot represents the nose of the air-  
craft and indicates Pitch. The wings indicate roll.  
6. PITCH DIAL  
Indicates the Pitch angle as determined by the Symbolic Airplane dot.  
1.4 OPTIONS AND CONFIGURATIONS  
For available options and configurations, refer to Table 1.2, below.  
Panel Tilt Angle setting  
Mating Connector  
Slip Indicator  
Set to customer requirements  
MS3116E8-4S or equivalent  
Optional add-on (order P/N 444-0010-01)  
Standard Blue & Brown  
Fixed  
Color Scheme  
Display pointer style  
Power Flag  
All models  
Brightness Adjust  
All models  
Table 1.2, Options and Configurations  
KMC Publication No.1401-1  
Rev C  
Page 5 of 10  
 
KMC  
KELLY MANUFACTURING COMPANY  
RCA 2600 Series Installation/Operation Guide  
SECTION 2, INSTALLATION  
2.1 GENERAL INFORMATION  
The conditions and test required for the TSO approval of this article are minimum performance standards. It is the responsibility of  
those installing this article either on or within a specific type or class of aircraft to determine that the aircraft installation conditions  
are within the TSO standards. TSO articles must have a separate approval for installation in an aircraft. The article may be installed  
only if performed under 14CFR Part 43 or the applicable airworthiness requirements.  
For certain classes of Part 23 aircraft level C of DO-178B certification may not be sufficient - check with your local regulatory  
authority prior to installation.  
2.2 HANDLING  
Although the RCA 2600 Series instruments are totally electronic, improper handling can cause damage. Please observe the  
following precautions while handling.  
1. Do not drop, jar or shake instrument. Store instrument in shipping container until installation.  
2. Instruments should be transported in the original shipping container when moved to and from aircraft. If container is not  
available, carefully carry by hand in upright position.  
3. Avoid touching the screen. This is the most vulnerable part of the instrument. Improper handling and cleaning can cause  
permanent scratching of the screen surface (See Instrument Care on Page 8).  
4. To prevent further damage, a malfunctioning instrument should be handled as carefully as a new instrument. Most mal-  
functioning instruments can be repaired and returned to service. Contact Kelly Manufacturing Company for repair and  
warranty information.  
2.3 PRE-INSTALLATION INSPECTION  
1. When the instrument is first received, inspect container for any shipping damage.  
2. Carefully remove the instrument from shipping container and retain container for later storage or shipping.  
3. Inspect the instrument for any signs of damage. Contact your Shipper to file any claim due to shipping damage.  
4. Check labeling on the instrument to assure that the instrument panel tilt angle is correct for your aircraft.  
2.4 INSTALLATION  
Install the instrument on the aircraft by using the aircraft manufacturer’s recommendations and by the following steps:  
1. The RCA 2600 Series Horizon uses standard panel cutouts. Refer to figure 1.1 “General Dimensions” for instrument  
and cutout dimensions.  
2. Instrument Pinout is: A = GND, B = PWR, C = SPARE, D = SPARE. Pinout information may also be found on the  
back of the instrument. See table 1.1 “Leading Particulars” for additional electrical information.  
3. Attach aircraft electrical connector to the instrument and insert into the instrument panel cutout.  
4. Secure instrument with user supplied screws. Use 6-32 UNC-2b screws or equivalent. Screw length should not  
exceed .5 inches plus bezel and panel thickness. Do not tighten.  
5. With the aircraft on level surface, apply power to the instrument and allow it to warm up for 3 minutes.  
6. Adjust roll position of the instrument by visually aligning the symbolic airplane with the horizon line as indicated  
on the instrument and tighten screws.  
-WARNING-  
Do Not modify the instrument in any way. Any modifications will void the warranty and revoke the FAA  
certifications. This includes, but is not limited to, actions such as enlarging the mounting holes.  
Page 6 of 10  
KMC Publication No.1401-1  
Rev C  
 
KMC  
RCA 2600 Series Installation/Operation Guide  
KELLY MANUFACTURING COMPANY  
SECTION 3, OPERATION GUIDE  
3.1 PRE-FLIGHT PROCEDURES  
During pre-flight procedures, the instrument must be provided with adequate electrical power under normal vibration conditions  
(engine running). A red “X” appears across the screen indicating that the instrument is booting up. When the X disappears, the  
instrument is ready. The startup process should be completed within three minutes.  
NOTE  
On tail-dragger aircraft, the indicator will not show as level until after achieving level flight. No adjustment are  
necessary when level flight is achieved.  
3.2 IN-FLIGHT PROCEDURES  
In flight, you do not need to cage the unit as you would a mechanical gyro. It will indicate accurately at all times. You may adjust the  
screen brightness (DIM button) at any time (See figure 3.1 for dimming controls). Press and hold up or down button until you reach  
desired brightness and release. Press both buttons simultaneously to reset to factory default setting.  
DIMMER  
DOWN  
UP  
DIMMER  
DOWN UP  
DIM  
20  
10  
DIM  
20  
10  
10  
20  
30  
10  
20  
RCA 2600-2  
RCA 2600-3  
Figure 3.1, Dimming Controls  
3.3 FLIGHT LIMITATIONS  
There are no flight limitations to the RCA 2600 Series horizon. The instrument will operate in a full 360 degrees of turn and may be  
used in light aerobatic type maneuvers.  
Extreme turns may cause the instrument display to temporarily disable itself. This is indicated by a red “X” across the screen and  
an “Exceed Bank Angle” warning notice at the bottom of the screen. The instrument should automatically reset the display within  
3 to 10 seconds. This situation is due to the speed the processor repaints the display. The attitude sensors are not affected so it is  
not necessary to level the aircraft while the display resets. Unlike mechanical gyros, extreme maneuvers will not cause any harm to  
the instrument.  
3.4 EMERGENCY PROCEDURES  
In the rare event that your RCA 2600 does not reset itself, you will need to pull power to the unit and reset the circuit breaker. This  
will restart the unit and you can continue on without damage to the unit. You do not need to be flying level while the unit resets.  
In a low voltage situation, the RCA 2600 will show a “Low Voltage” warning notice at the bottom of the screen. This notice will  
appear when the voltage goes below 11 volts. This notice will also indicated the amount of voltage the instrument is receiving. At  
8.5 volts, a red “X” will appear across the screen indicating that the instrument reading is unreliable.  
It is recommended that you install the Kelly Manufacturing ESP-1 (Emergency Standby Power) backup battery unit. This will  
ensure that your instrument will have power in the event of Aircraft power failure. Contact your R.C. Allen/Kelly Mfg. distributor for  
additional information about this product.  
KMC Publication No.1401-1  
Rev C  
Page 7 of 10  
 
KMC  
KELLY MANUFACTURING COMPANY  
RCA 2600 Series Installation/Operation Guide  
SECTION 4, GENERAL INFORMATION  
4.1 Instrument Care  
The most easily damaged part of your instrument is the screen. Special care should be taken when cleaning the screen to prevent  
scratches and other damage. Avoid touching the screen at all times.  
To clean light spots and dust, use a soft, lint free cotton cloth slightly moistened with distilled water.  
For harder to clean spots, use a 50/50 solution of isopropyl alcohol and distilled water. Vinegar may also be used in a 50% solution  
with water. You may also use cleaners approved for LCD TV’s and laptop computer screens.  
Always apply the cleaner to the cloth and not the screen.  
-CAUTION-  
Do Not use paper towels, facial tissue or napkins. These products are made from recycled paper and  
may contain metals and wood chips that will scratch the screen.  
Do Not use acetone or cleaners containing ammonia.  
By avoiding all screen contact and by using proper cleaning methods, the user will be rewarded with many years of service.  
4.2 OPTIONAL SLIP INDICATOR  
An optional Slip/Skid Indicator (inclinometer)is available for the RCA2600-3 and RCA2600-2. The inclinometer can be purchased  
with the slip indicator at time of purchase or separately installed by the user (part number 444-0010-01). The addition of an incli-  
nometer satisfies the requirements for FAA’s AC 91-75. The slip indicator may be attached before or after the instrument has been  
installed in the aircraft.  
INSTALLATION  
1. Apply power to the instrument to assure that it reads level in pitch and roll.  
2. Remove two screws on the face of the instrument.  
3. Align Inclinometer with holes and replace screws. Do not tighten.  
4. Adjust the Inclinometer until the bubble is centered and tighten screws just enough to secure Inclinometer. Do not  
over tighten.  
SLIP INDICATOR  
SCREWS  
DIM  
Figure 4.1, Inclinometer Installation  
Page 8 of 10  
KMC Publication No.1401-1  
Rev C  
 
KMC  
RCA 2600 Series Installation/Operation Guide  
KELLY MANUFACTURING COMPANY  
Frequently Asked Questions  
How long should my Digital Horizon last?  
There isn’t a good answer for this question. There are no moving parts in the RCA 2600 so there isn’t anything to wear out. The  
RCA 2600 should give hundreds of hours of trouble free operation.  
At what voltage level will my Digital Horizon become unreliable?  
Unlike mechanical horizons, the RCA 2600 doesn’t have a rotor that is affected by voltage. The RCA 2600 will be reliable from 9 to  
32VDC.  
My instrument is showing a climb/dive, what can I do?  
You can check your aircraft owner’s manual or contact the aircraft manufacturer to determine if your aircraft’s instrument panel  
is tilted (pitched fore and aft). The tilt angle is any deviation from vertical of your instrument panel in level flight. Your instrument  
needs to be calibrated to compensate for this angle.  
My instrument is showing a turn in level flight, what can I do?  
It is very important to have the instrument level (left and right) in your panel. If the instrument is not level, it will show a turn when  
in level flight. To level the instrument place an “L” bubble level on the lip of the bezel at the bottom of the glass and adjust the  
instrument until the bubble is centered.  
How do I get my instrument repaired?  
For any overhaul or repair questions you can contact Kelly Manufacturing Company. Our Service Center can repair or refurbish  
any R.C. Allen instrument. The only thing really required is information. You can send us your instrument with a letter giving us your  
name, return shipping address, phone number and a brief description of what is wrong with the instrument or download a form from  
the Support page on our web site at: kellymfg.com/support.html.  
Email us for more information: [email protected].  
Or, Visit our Web Site: kellymfg.com  
KMC Publication No.1401-1  
Rev C  
Page 9 of 10  
 
KMC  
KELLY MANUFACTURING COMPANY  
RCA 2600 Series Installation/Operation Guide  
APPENDIX A  
DO-160F Environmental Qualification Form  
NOMENCLATURE: ELECTRIC DIGITAL HORIZON  
MODEL NUMBER: RCA2600-series  
TSO NUMBER: C4c & C113  
MANUFACTURERS SPECIFICATIONS: STP 1151 Rev. L (1/15/1996)  
MANUFACTURER: Kelly Manufacturing Company  
ADDRESS: 555 S. Topeka, Wichita, KS 67202  
REVISION & CHANGE NUMBER OF DO-160: Rev. F dated 12/6/07  
DATES TESTED: 9/08 5/11  
CONDITIONS  
SECTION  
DESCRIPTION OF TESTS CONDUCTED  
Temperature and Altitude  
Low Temperature  
High Temperature  
Altitude  
4.0  
4.5.1  
4.5.2 & 4.5.3  
4.6.1  
Equipment tested to Category D1  
Temperature Variation  
Humidity  
5.0  
6.0  
Equipment tested to Category C  
Equipment tested to Category A  
Operational Shocks and Crash Safety  
Vibration  
Explosive Atmosphere  
Waterproofness  
Fluids Susceptibility  
Sand and Dust  
Fungus  
Salt Fog Test  
Magnetic Effect  
Power Input  
Voltage Spike  
7.0  
8.0  
9.0  
Equipment tested to Category B  
Equipment tested to Category U2 curve F & F1  
Equipment identified as category X, no test performed  
Equipment identified as category X, no test performed  
Equipment identified as category X, no test performed  
Equipment identified as category X, no test performed  
Equipment identified as category X, no test performed  
Equipment identified as category X, no test performed  
Equipment tested to Category Z  
Equipment tested to Category BRX  
Equipment tested to Category A  
Equipment tested to Category Z  
Equipment tested to Category ZC  
10.0  
11.0  
12.0  
13.0  
14.0  
15.0  
16.0  
17.0  
18.0  
19.0  
Audio Frequency Susceptibility  
Induced Signal Susceptibility  
Radio Frequency Susceptibility  
(Radiated and Conducted)  
Emissions of Radio Frequency Energy  
Equipment tested for Radiated Susceptibility to Category T  
Equipment tested for Conducted Susceptibility to Category T  
Equipment tested to Category M  
20.0  
21.0  
Equipment tested to  
Pin Injection Test: Waveform A, Level 3  
Cable Bundle Test: Waveform C, Level 3  
Multiple Burst: no test performed (X)  
[A3C3X]  
Lightning Induced Transient  
Susceptibility  
22.0  
Lightning Direct Effects  
Icing  
Electrostatic Discharge  
Fire, Flammability  
23.0  
24.0  
25.0  
26.0  
Equipment identified as category X, no test performed  
Equipment identified as category X, no test performed  
Equipment tested to Category A  
Equipment identified as category X, no test performed  
REMARKS  
.
In the power input test, equipment was tested to subparagraph 16.5.1.4 b, requirement for equipment with digital  
circuits  
Page 10 of 10  
KMC Publication No.1401-1  
Rev C  
 

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