Midcontinent MD302 Series Technical Document

INSTALLATION MANUAL AND
OPERATING INSTRUCTIONS
MODEL MD302-( ) SERIES
STANDBY ATTITUDE MODULE
Mid-Continent Instrument Co., Inc.
dba Mid-Continent Instruments and Avionics
9400 E. 34
th
Street N.
Wichita, KS USA 67226
[phone] Manual Number 9017782
[phone] Rev B, October 31, 2012

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 2 Manual Number 9017782
FOREWORD
This manual provides information intended for use by persons who, in accordance with current regulatory
requirements, are qualified to install this equipment. If further information is required, please contact:
Mid-Continent Instruments and Avionics
Attn: Customer Service Dept.
9400 E. 34th St. N.
Wichita, KS 67226 USA
Phone [phone]
Fax [phone]
www.mcico.com
We welcome your comments concerning this manual. Although every effort has been made to keep it
free of errors, some may occur. When reporting a specific problem, please describe it briefly and include
the manual part number, the paragraph/figure/table number, and the page number. Send your
comments to:
Mid-Continent Instruments and Avionics
Attn: Customer Service Dept.
9400 E. 34th St. N.
Wichita, KS 67226 USA
Phone [phone]
Fax [phone]
©Copyright 2012
Mid-Continent Instrument Co., Inc.

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 3 Manual Number 9017782
REVISION HISTORY
Rev Date Approved Detail
1 09/10/12 BAW Engineering release.
A 10/02/12 BAW Initial release.
B 10/31/12 BAW Updates implemented.

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 4 Manual Number 9017782
Table of Contents
SECTION 1GENERAL DESCRIPTION 6
1.1INTRODUCTION 6
1.2SYSTEM OVERVIEW 7
1.2.1PRE-FLIGHT MODE...................................................................................................7
1.2.2FLIGHT MODE..........................................................................................................7
1.2.3EMERGENCY MODE ..................................................................................................9
1.2.4CONFIGURATION MODE ...........................................................................................9
1.3TECHNICAL SPECIFICATIONS 10
1.3.1ELECTRICAL ATTRIBUTES....................................................................................... 10
1.3.2PHYSICAL ATTRIBUTES .......................................................................................... 10
1.3.3PERFORMANCE LIMITS........................................................................................... 10
1.3.4QUALIFICATIONS................................................................................................... 10
SECTION 2INSTALLATION 12
2.1GENERAL INFORMATION 12
2.2PARTS LIST 12
2.3EQUIPMENT LOCATION 12
2.4LIMITATIONS 14
2.5CABLE HARNESS 15
2.5.1WIRE GAUGE SELECTION ....................................................................................... 15
2.5.2CONFIGURATION MODULE ..................................................................................... 15
2.6PITOT / STATIC CONNECTIONS 18
2.7MOUNTING 18
2.8INSTALLATION COMPLETION 18
SECTION 3OPERATION 21
3.1USER INTERFACE 21
3.2PRE-FLIGHT MODE 21
3.3FLIGHT MODE 22
3.3.1MAJOR FUNCTIONS................................................................................................ 23
3.3.1.1ATTITUDE OPERATION........................................................................................... 23
3.3.1.2ALTITUDE OPERATION........................................................................................... 24
3.3.1.3AIRSPEED OPERATION ........................................................................................... 25
3.3.1.4SLIP OPERATION ................................................................................................... 26
3.3.2OPTION SETTINGS................................................................................................. 27
3.3.2.1MENU OPERATION ................................................................................................. 27
3.3.2.2ALT UNITS............................................................................................................. 28
3.3.2.3BARO UNITS.......................................................................................................... 28
3.3.2.4SYMBOL ................................................................................................................ 28
3.3.2.5ATT MASK ............................................................................................................. 29
3.3.2.6ALT TREND............................................................................................................ 29
3.3.2.7POWER OFF........................................................................................................... 30
3.3.2.8REVIEW CONFIG.................................................................................................... 30
3.3.2.9EXIT MENU............................................................................................................ 31
3.3.3BRIGHTNESS ADJUSTMENT .................................................................................... 31
3.4EMERGENCY OPERATION 31
3.4.1IN FLIGHT............................................................................................................. 31
3.4.2ON THE GROUND................................................................................................... 32

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 5 Manual Number 9017782
SECTION 4CONFIGURATION SETUP 33
4.1CONFIGURATION MODE/MENU 33
4.2CONFIGURE DISPLAY 34
4.2.1ROLL DISPLAY ....................................................................................................... 35
4.2.2AIRSPEED UNITS ................................................................................................... 35
4.2.1DISPLAY ORIENTATION.......................................................................................... 36
4.3CONFIG DIMMING 36
4.3.1DIMMING CONTROL............................................................................................... 37
4.3.2DIMMING CURVE ................................................................................................... 37
4.4CONFIGURE AIRCRAFT 38
4.4.1PANEL TILT ........................................................................................................... 39
4.4.2RANGE MMO.......................................................................................................... 39
4.4.3RANGE MARKINGS ................................................................................................. 40
4.5CONFIGURATION MODE ACTIONS 41
4.5.1UPDATE SOFTWARE............................................................................................... 41
4.5.2ARINC SPEED......................................................................................................... 41
4.5.3ACCEPT CHANGES.................................................................................................. 42
4.5.4CANCEL CHANGES.................................................................................................. 42
SECTION 5CONFORMANCE 43
5.1INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 43
5.1.1PRESSURE SYSTEM AND ALTIMETER VERIFICATION................................................. 43
5.1.2SOFTWARE UPGRADES........................................................................................... 43
5.1.3BATTERY REPLACEMENT ........................................................................................ 43
5.1.4TROUBLESHOOTING............................................................................................... 43
5.2ENVIRONMENTAL QUALIFICATION STATEMENT 47

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 6 Manual Number 9017782
SECTION 1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The model MD302 series Standby Attitude Module is a self-contained situational awareness instrument
that provides aircraft attitude, altitude, airspeed and slip indication. The compact and innovative design
of the MD302 is specifically developed for maximum flexibility for installation in retrofit or modern
instrument panel. Its size, extra-wide viewing angle and AnyWay selectable orientation allows it to be
installed almost anywhere in the instrument panel and in less space than traditional 2-inch mechanical
standby or primary flight instruments.
Regardless of the aircraft you’re flying, the MD302 is a great fit. With a 10 to 32 volt DC input range, the
unit will work with 14 or 28V aircraft electrical buses and the selectable lighting input allows operation
with 5, 14 or 28V lighting systems. The operation and certification of the MD302 make it well suited for
Part 23 and 25 fixed-wing applications as well as Part 27 and 29 rotorcraft.
The MD302 provides critical flight and situational data to the pilot and crew under any circumstances
you’re likely to encounter. The design is built around a solid-state electronic sensor array for high
reliability and contains an integral and rechargeable Nanophosphate® lithium-ion battery that can power
the unit for up to two hours if main aircraft power is lost. The dual, high-resolution LCD display uses
smooth graphics, daylight-readable brightness, and a configurable lighting response curve to ensure
optimal visibility in all conditions.
The user interface of the product allows for simple, intuitive operation using a single push-and-turn knob
that easily navigates through the user options and menu screens. The interactivity of the unit means that
it can receive and transmit ARINC 429 data communications. Functional outputs of attitude, altitude, and
airspeed can be used for monitoring or backup information while baro input data can be received that will
synchronize the baro setting with the primary system to eliminate redundant task loading for the pilot.
The MD302 is an excellent complement to your avionics suite as a reliable and state-of-the-art instrument
that is an essential part of any instrument panel.

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 7 Manual Number 9017782
1.2 SYSTEM OVERVIEW
The MD302 has four specific modes of operation. They are:
Pre-flight Mode
Flight Mode
Emergency Mode
Configuration Mode
The following sections will briefly introduce each mode with further details provide within Sections 3 and
4 of this manual.
1.2.1 PRE-FLIGHT MODE
In Pre-flight Mode, power is applied to the unit and the introduction screen appears
during startup with the information shown in Figure 1.1.
FIGURE 1.1
1.2.2 FLIGHT MODE
manufacturer’s logo
model name/number
software version
total operating time

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 8 Manual Number 9017782
In Flight Mode, the unit operates normally by displaying attitude, altitude, airspeed and
slip information as shown in Figure 1.2.
Figure 1.2
FIGURE 1.2
roll/bank scale
pitch scale
symbolic airplane
slip indicator
barometer value
airspeed window
airspeed units
airspeed tape/scale
altitude trend bar
altitude window
altitude units
altitude tape/scale

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 9 Manual Number 9017782
1.2.3 EMERGENCY MODE
In Emergency Mode, aircraft power to the instrument has been lost and the unit
continues to operate in Flight Mode utilizing power from the internal battery. The battery
icon is displayed as shown in Figure 1.3.
FIGURE 1.3
1.2.4 CONFIGURATION MODE
In Configuration Mode, an authorized installer can change and set the appropriate
configuration values that are specific to the aircraft. These also include user preferences
that are not available during flight and certain maintenance functions as well. The top
level menu in Configuration Mode is shown in Figure 1.4.
FIGURE 1.4
current menu
current selection
unavailable
more options available
battery icon

Mid-Continent Instruments and Avionics, Wichita, KS
REV. B, October 31, 2012 10 Manual Number 9017782
1.3 TECHNICAL SPECIFICATIONS
1.3.1 ELECTRICAL ATTRIBUTES
Characteristics:
Input Voltage: 10-32 VDC
Input Power: (nominal) 4 watts (0.15A @ 28VDC)
(maximum) 25 watts max (when charging and heating battery)
Lighting Input: 5.14, or 28VDC or automatic photocell control
Input Data: barometer synchronization via ARINC 429 (see Table 1.5)
Output Data: attitude, altitude, airspeed via ARINC 429 (see Table 1.5)
discrete valid signal to ground; invalid signal is open (pin 2)
TABLE 1.1
1.3.2 PHYSICAL ATTRIBUTES
Characteristics:
Weight: 1.6 pounds (0.73 kg)
Dimensions:
(without connectors, mates, & knob) Bezel: 2.37” x 5.50” x 0.33” (HxWxD) Chassis: 2.31” x 3.16” x 4.82” (HxWxD)
Mating Connectors: 15-pin D-Sub with Configuration Module, MCIA p/n 9017275
Pneumatic fittings, MCIA p/n 9017642
Mounting: Panel mount from front; uses (4) #6-32 cap screws and
MCIA p/n 9017490-2 Nutplate (included)
TABLE 1.2
1.3.3 PERFORMANCE LIMITS
Characteristics:
Attitude: Pitch Angle No limits (360°+)
Pitch Rate 300° per second max
Roll Angle No limits (360°+)
Roll Rate 300° per second max
Altitude: Range -1,500 to +55,000 feet (available in meters)
Barometer 28.00 to 31.00 inches of mercury (available in inHg/mB/hPa)
Air Speed: Range 20 to 500 knots (available in mph or kph)
TABLE 1.3
1.3.4 QUALIFICATIONS
Specifications:
Certifications: FAA TSO-C2d (Type B), C3e, C4c, C10b, C106, C113a, C179a
Environmental Qualification: RTCA DO-160G Environmental Category
(F1)(S2)AB(RBB1)XXXXXXZ(ZXX)AZ(ZC)[WF]P[B3H33]XXAX
Software Qualification: RTCA DO-178B, Design Assurance Level A
Complex Hardware Qualification: RTCA DO-254, Design Assurance Level A
TABLE 1.4