True blue power TI1200 Technical Document

Installation Manual and Operating Instructions
Model TI1200 Series
Static Electrical Power Inverter
True Blue Power® is a division of Mid-Continent Instrument Co., Inc.
Mid-Continent Instrument Co., Inc.
dba Mid-Continent Instruments and Avionics
9400 E. 34th Street N. Manual Number 9017680
Wichita, KS 67226 Rev C, January 2, 2015

True Blue Power®2 Manual Number 9017680
a division of Mid-Continent Instrument Co., Inc. Revision C, January 2, 2015
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:
True Blue Power
c/o Mid-Continent Instrument Co., Inc.
Attn: Customer Service Dept.
9400 E. 34th Street N.
Wichita, KS 67226 USA
PH [phone]
FX [phone]
www.truebluepowerusa.com
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 reference and the page
number. Send your comments to:
True Blue Power
c/o Mid-Continent Instrument Co., Inc.
Attn: Technical Publications
9400 E. 34th Street N.
Wichita, KS 67226 USA
PH [phone]
FX [phone]
All products produced by Mid-Continent Instrument, Co., Inc., including those identified as Mid-
Continent Instruments and Avionics or True Blue Power, are designed and manufactured in
Wichita, KS, USA.
Copyright 2015
Mid-Continent Instrument Co., Inc.

True Blue Power®3 Manual Number 9017680
a division of Mid-Continent Instrument Co., Inc. Revision C, January 2, 2015
REVISION DETAIL
Rev. Date Approved Detail
A 04/27/12 JRC Initial release.
B 07/23/12 JDS Page 9; view overlaps. Page 15 (TS) and (TDS) 501 was 500.
C 01/02/15 BMC Added TI1202 model

True Blue Power®4 Manual Number 9017680
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TABLE OF CONTENTS
SECTION 1 GENERAL DESCRIPTION
1.1INTRODUCTION 5
1.2 TECHNICAL SPECIFICATIONS 5
1.2.1 Electrical Attributes 5
1.2.2 Physical Attributes 5
1.2.3 Qualifications 6
SECTION 2 INSTALLATION CONSIDERATIONS
2.1COOLING 7
2.2 EQUIPMENT LOCATION 7
2.3ROUTINGOFCABLES 7
2.4LIMITATIONS 7
SECTION 3 INSTALLATION PROCEDURE
3.1 GENERAL INFORMATION 8
3.2 UNPACKING AND INSPECTING 8
3.3 CABLE HARNESS 8
3.3.1 Wire Gauge Selection 8
3.3.2 Pin Assignment Information 8
3.3.3 Harness Verification 11
3.4MOUNTING 11
3.5 INSTALLATION COMPLETION 11
SECTION 4 OPERATION
4.1 ELECTRICAL PERFORMANCE 13
4.2 PROTECTIVE FEATURES 14
SECTION 5 CONFORMANCE
5.1 CONTINUED AIRWORTHINESS STATEMENT 15
5.2 ENVIRONMENTAL QUALIFICATION STATEMENT 15
NUMBER LIST OF TABLES AND FIGURES
1.1 Electrical Attributes Table 5
1.2 Physical Attributes Table 5
1.3 Qualification Table 5
3.3 Connector Pinout Figure 9
3.3 Connector Pinout Table 9
3.4 Example Wiring Diagrams 10
3.5 TI1200 Series Outline Drawing Figure 12
4.1 Temperature Performance 13
4.2 Output Power Vs Voltage Performance 13
4.3 Output Power Vs Altitude Performance 14

True Blue Power®5 Manual Number 9017680
a division of Mid-Continent Instrument Co., Inc. Revision C, January 2, 2015
SECTION 1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The model TI1200 Series Static Electrical Power Inverter is a lightweight power converter that translates a
20 to 36 VDC input to two separate output options:
Model Part Number Output
TI1200 6431200-1 115 VAC, 60 Hz
TI1202 6431200-3 230 VAC, 50 Hz
Both configurations of the Model TI1200 Series provide 1200 watts (VA) of power. The alternating current
output is defined as a pure sine wave with less than 2.5% of total harmonic distortion for clean, noise-
free, harmonic-free power to supply loads of corresponding voltage, power and frequency. For the
TI1200, the 115VAC, 60 Hertz (Hz) is suitable for nearly any common commercial or consumer load rated
for a nominal input of 115VAC. The TI1202 is designed for a 230VAC output with an AC frequency of 50
Hz for common avionics and related equipment. The TI1200 Series Static Inverter is FAA certified to TSO
C73 and tested to rigorous environmental standards and levels of RTCA DO-160. The small size and light
weight in conjunction with its installation flexibility (inside or outside the pressure vessel) make it an ideal
choice for aircraft power needs while reducing the challenges associated with other similar products.
Highlighted features include short circuit protection, overload capability, low voltage shut-down,
temperature monitoring, a self-resettable over-temperature disable, and a remote on/off function. The
rugged extrusion that houses the unit is designed to help dissipate heat and provide mechanical strength
against vibration or other possibilities of damage. Two independent fans allow for a smaller unit and
provide a quieter operation while keeping the internal components cool and extending the life of the unit.
1.2 TECHNICAL SPECIFICATIONS
Electrical Attributes: Model TI1200 Model TI1202
Input Voltage: Rated 28VDC nominal; 20-36VDC certified; see figure 4.2
Input Power: 60 amps; 0.2A at no load
Output Voltage: 115VAC ±3% at 60 Hertz ±0.1% (single phase) 230VAC ±3% at 50 Hertz ±0.1% (single phase)
Output Power: 1200 watts (1200 VA at power factor = 1)
Output Waveform: Pure sine wave (less than 2.5% distortion)
Power Factor: -0.8 to +0.8
Efficiency: 88% nominal
Total Harmonic Distortion (THD): < 3%
Table 1.1
Physical Attributes: Model TI1200 Model TI1202
Weight: 7.25 pounds max
Dimensions:
(not including connector mate) 12.00 inches long x 6.32 inches wide x 3.45 inches high
Mating Connector (and cable clamp): MS3102A24-12S or equivalent (MCI P/N 9017235)
Mounting: Base mount – orientation not critical
Table 1.2

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Qualifications: Model TI1200 Model TI1202
Qualification: FAA TSO-C73
Environmental Qualification: RTCA DO-160G Environmental Category F3(Y)S2BB[(RCC1)(UG)]XXXXXXZXXXXXBXXXXX
Altitude: -15,000 ft. to +55,000 ft.; See Figure 4.3
Temperature: -55°C to +70°C (-67°F to +158°F); See Figure 4.1
Table 1.3

True Blue Power®7 Manual Number 9017680
a division of Mid-Continent Instrument Co., Inc. Revision C, January 2, 2015
SECTION 2 PRE-INSTALLATION CONSIDERATIONS
2.1 COOLING
No external cooling is required. The unit is equipped with two internal DC fans. Restriction to airflow can
cause overheating of the unit and limit performance or reduce the expected life of the product. Make sure
to provide adequate clearance on both ends of the unit with the hexagonal openings to allow for proper
circulation. In general, four to six inches of clearance on both ends of the unit should be acceptable.
Mounting the unit to a metal surface can also help reduce the effects of temperature within the unit but is
not required.
2.2 EQUIPMENT LOCATION
The TI1200 Series Static Inverter is designed for mounting flexibility, allowing for installation inside or
outside the pressure vessel with no requirement for temperature control. In addition to altitude and
temperature resistance, the unit is also designed to withstand high levels of condensing humidity.
However, installation locations where the unit could be subject to standing or direct water exposure
should be avoided. The unit can be mounted in any orientation. Clearance should be provided for the
mating connector and may require as much as five inches past the unit connector to allow for back shell
access to the connector.
2.3 ROUTING OF CABLES
The wires and cable bundle associated with the unit are heavy gauge wire and carry significant power. Be
aware of routing cables near other electronics or with other wire bundles that may be susceptible to high
energy flow.
Avoid sharp bends in cabling and routing near aircraft control cables. Also avoid proximity and contact
with aircraft structures, avionics equipment, or other obstructions that could chafe wires during flight and
cause undesirable effects.
2.4 LIMITATIONS
The TI1200 Series of static electric power inverters is certified to FAA TSO-C73 with the following
limitations identified:
1) Alternating current (AC) output is provided at 115 volts and 60 hertz in lieu of 115 volts and 400
hertz as identified in the MPS of the TSO.
2) Equivalent environmental qualification was verified per RTCA DO-160G in lieu of those identified
within the MPS of the TSO.
The conditions and tests for TSO approval of this article are minimum performance standards. Those
installing this article, on or in a specific type or class of aircraft, must determine that the aircraft installation
conditions are within the TSO standards, specification of the article, and deviations as listed above. TSO
articles must have separate approval for installation in an aircraft. The article may be installed only
according to 14 CFR part 43 or the applicable airworthiness requirements.

True Blue Power®8 Manual Number 9017680
a division of Mid-Continent Instrument Co., Inc. Revision C, January 2, 2015
SECTION 3 INSTALLATION PROCEDURES
3.1 GENERAL INFORMATION
This section contains interconnect diagrams, mounting dimensions and other information pertaining to the
installation of the TI1200 Series Static Inverter. After installation of cabling and before installation of the
equipment, ensure that power is applied only to the pins specified in the interconnect diagram.
3.2 UNPACKING AND INSPECTING EQUIPMENT
When unpacking this equipment, make a visual inspection for evidence of any damage that may have
incurred during shipment. The following parts should be included:
a. Static Inverter MCI P/N 6431200-( )
b. Mating Connector (& cable clamp) MCI P/N 9017235-1 and 9017235-2
c. Installation Manual MCI P/N 9017680
Equipment not provided:
a. Mounting Hardware four (4) ¼-20 pan head screws
¼” lock washers (optional)
b. Cable Harness Wire See Section 3.3 for specifications
3.3 CABLE HARNESS
Construct the cable harness with regards to the instructions below, and using the Connector Pinout of
Figure 3.3, Figure 3.4, and Wiring Diagram of Table 3.3.
Refer to Section 2: Pre-Installation Considerations in regards to routing precautions.
3.3.1 Wire Gauge Selection
Use of PTFE, ETFE, TFE, Teflon, or tefzel insulated wire is recommended for aircraft use.
Use the following wire gauges for each of the pins in the connector:
Pin A and C – 8 AWG stranded or solid
Pin B and D – 14 AWG stranded or solid
Pin E – 16-24 AWG stranded or solid
3.3.2 Pin Assignment Information
Input Power:
Positive DC input – +24 to 32 VDC. Connect to the aircraft 28 VDC bus using a 60-70 Amp
circuit breaker.
Negative DC input – Internally this pin is connected to the inverter enclosure. Connect to
aircraft ground.
Note: Two common practices for the connecting the -28V of power devices in aircraft are:
1. The negative lead connects from the device to the negative power bus.
2. The negative lead connects from the device to the negative power bus, and a second
lead connects to the aircraft structure close to the power device.
The TI1200 Series passes DO160G Section 21 Table 1.2.3 conducted emissions testing
using both methods.

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Inverter Ouput:
AC Output – 115VAC, 60Hz or 230VAC, 50Hz. Used for powering devices where
terrestrial/utility power designations are used, pin B can be connected as “Line” or “Hot”.
AC Return – Used for powering devices where terrestrial/utility power designations are used,
pin C can be connected as “Neutral”.
Note: Use of a circuit breaker on the AC output is optional. For the full inverter
1200VA output, a 10 Amp circuit breaker is sufficient. For convenience at each AC
outlet, individual circuit breakers of 1 to 5 amps each can be used. If a single pole
breaker is used, install the breaker on the wire from pin B. If a double pole breaker
is installed, route both pins B and D through the circuit breaker.
Remote On/Off Control: (see section 4.2.1)
Remote ON/OFF Control – Connecting this pin to either DC Negative or to aircraft ground
will enable the AC output of the inverter. By utilizing a switch between this pin and ground or
negative, it will allow remote on/off control of the unit. When unconnected (output is OFF) this
pin will have approximately 11 VDC present, internally limited to less than 1 mA. If the
inverter is to be enabled at all times, pin E can be connected to pin C.
Figure 3.3 Table 3.3
Pinout View of Connector Pinout
Unit Connector
Pin #
A 24-32VDC Input
B VAC Output
C Input Return
DOutputReturn
E Remote On/Off
Connector Pinout

True Blue Power®10 Manual Number 9017680
a division of Mid-Continent Instrument Co., Inc. Revision C, January 2, 2015
Figure 3.4
Example Wiring Diagrams
TI1200
A
C
E
B
D
28VDC
Case attached to airframe
INVERTER ENABLE
(always active)
28VDC
PROTECTION
&
GFI OUTLETS
ON
OFF
TI1200
60A
60A
3rd Party
equipment
Optional 10A
Circuit Breaker
A
C
E
B
D
Case attached to airframe
A
C
E
B
D
A
C
E
B
D(not supplied)
Optional 1-5
Circuit Breakers
110VAC Outlet(s)
(not supplied)
INVERTER ENABLE
(Remote ON/OFF)
2
1
AB
GFI
Ground Fault Indicator
(not supplied)
Optional
Notes:
I. Wiring diagrams above represent various examples of typical installations.
II. It is recommended to attach case to the aircraft metal structure.
III. The recommended outlet protection may consist of either:
A. single 10A circuit breaker for all outlet(s) (single or double pole breaker), OR
B. 1-5A circuit breakers for each outlet
IV. For Remote On/Off operation, return line can be configured in one of two ways:
1. return line connected to pin C
2. return line connected to aircraft ground

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3.3.3 Harness Verification
With the TI1200 Series Static Inverter disconnected, activate the aircraft power bus that
supplies the unit and use a multi-meter to verify that aircraft power and ground with
appropriate voltage is on the pins within the mating harness.
3.4 MOUNTING
Refer to Section 2: Pre-Installation Considerations in regards to equipment location.
The TI1200 Series Static Inverter is designed for base mounting only. Four ¼-20 mounting holes should
be provided in the aircraft in accordance with Figure 3.5. Secure the unit with four ¼-20 pan head Phillips
screws, or equivalent. A lock washer under the head of each screw is recommended.
3.5 INSTALLATION COMPLETION
Prior to operating the unit in the aircraft, it is recommended to verify the output and functionality of the
unit. In order to prevent accidental damage to other systems, it is best not attach the output to other
equipment or power busses prior to verification. Verify the output of the unit at the terminating end of the
cable with a multi-meter to ensure proper voltage and polarity. Once verified, installation can be
completed and functionality of the remote on/off feature (if used) should be checked.

True Blue Power®12 Manual Number 9017680
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Figure 3.5
TI1200 Series Outline Drawing

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SECTION 4 OPERATION
4.1 ELECTRICAL PERFORMANCE
The TI1200 Series Static Inverter converts a direct current (DC) voltage input to a regulated 115 volt
alternating current (VAC) output. The output is controlled to a frequency of 60 Hertz and represents a
pure sine wave with minimal distortion. The unit is capable of providing 1200 watts to power a variety of
aircraft accessories including laptops, personal electronics, onboard systems, and many others.
(See Section 1.2.1 for tolerance ranges)
The unit is designed as a two-stage, solid-state switch-mode power supply. The power transformation
utilizes a first-stage push-pull methodology followed by an H-bridge AC forming second stage. The
primary stage utilizes ‘current-mode’ control providing instantaneous load protection as an advantage
over legacy designs that incorporate ‘voltage-mode’ controllers. The alternating current is frequency
controlled using a crystal oscillator reference.
Figure 4.1
Output Power Performance vs Temperature
Figure 4.2
Output Power Performance vs Input Voltage

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Figure 4.3
Output Power Performance vs Altitude
4.2 PROTECTIVE FEATURES
4.2.1 Remote On/Off
The TI1200 Series Static Inverter incorporates a remote on/off feature that allows the user to
enable or disable the output of the unit. By providing a ground on the appropriate pin (See
Table 3.3) the user, via a remote mounted switch or similar method, can enable the output of
the unit. The unit can be similarly disabled by removing the ground signal (open circuit) to the
same pin.
4.2.2 Over-Voltage
When the input voltage exceeds the operating range of the unit (See Section 1.2.1; absolute
maximum input of 37VDC) the unit senses an over-voltage condition and disables the output.
The unit will dynamically monitor the input voltage such that if the input returns to within the
normal operating range, the output will be enabled and allow the unit to operate normally.
4.2.3 Under-Voltage
When the input voltage drops below the operating range of the unit (See Section 1.2.1;
absolute minimum input of 20VDC) the unit senses an under-voltage condition and disables
the output. The unit will dynamically monitor the input voltage such that if the input returns to
within the normal operating range, the output will be enabled and allow the unit to operate
normally.
4.2.4 Over-Temperature
The TI1200 Series incorporates an internal temperature sensing device that continually
provides monitoring and feedback to the control circuits. When the unit senses an internal
condition that exceeds maximum temperature ratings, the output is disabled. The internal
cooling fans will continue to operate and the unit output will be enabled when the temperature
returns to within acceptable limits. This over-temperature reset occurs automatically without
external intervention required.
4.2.5 Short Circuit and Over-Current
The TI1200 Series is capable of surviving a short circuit or over-current event without
permanent damage or effect to long-term reliability. The unit can provide over its rated power
output up to 1320 watts for up to 2 hours. The unit monitors on pulse-by-pulse scenario to

True Blue Power®15 Manual Number 9017680
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determine a short circuit or over-current situation. If detected, the output is limited by clipping
the AC sine wave form, limiting the power output.
4.2.6 Temperature Regulated Cooling
The unit is equipped with two internal brushless DC fans for cooling to extend the power
range and long-term life. The fans are activated at a specified point determined by the
continuous monitoring of the internal temperature. The fans operate very quietly to reduce the
audible noise in any environment. The two fans provide independent redundancy for
protection of the unit in the event that one becomes inoperative.

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SECTION 5 CONFORMANCE
5.1 CONTINUED AIRWORTHINESS STATEMENT
No periodic scheduled maintenance or calibration is necessary for continued airworthiness of the TI1200
Series Static Inverter. If the unit fails to perform to specifications, the unit must be removed and serviced
by Mid-Continent Instruments and Avionics or their authorized designee.
5.2 ENVIRONMENTAL QUALIFICATION STATEMENT
NOMENCLATURE: Static Electrical Power Inverter
MODEL NUMBER: TI1200, TI1202 TSO NUMBER: C73
MANUFACTURERS SPECIFICATIONS:
Minimum Performance Specifications: Test Specification (TS) 501, Test Data Sheet (TDS) 501
QUALIFICATION STANDARD: RTCA DO-160G
CONDITIONS SECTION DESCRIPTION OF TEST
Temperature and Altitude
Low Temperature
High Temperature
In-Flight Loss of Cooling
Decompression
Overpressure
4
4.5.1
4.5.2
4.5.5
4.6.2
4.6.3
Category F3(Y)
Operating Low Temp = -55C
Operating High Temp = +70C
Category Y = 300 minutes, +40C, 75%
Altitude = +55,000 ft
-15,000 ft
Temperature Variation 5 Category S2
Humidity 6 Category B
Operational Shock and
Crash Safety 7 Category B
Vibration 8 Category R, Curve C, C1
Category U, Curve G
[(RCC1)(UG)]
Explosion 9 Category X
Waterproofness 10 Category X
Fluids 11 Category X
Sand and Dust 12 Category X
Fungus 13 Category X
Salt Spray 14 Category X
Magnetic Effect 15 Category Z
Power Input 16 Category X
Voltage Spike 17 Category X
Audio Frequency Conducted
Susceptibility 18 Category X
Induced Signal Susceptibility 19 Category X
Radio Frequency Susceptibility 20
Category X
Emission of Radio Freq Energy 21 Category B
Lightning Induced Transient
Susceptibility 22 Category X
Lightning Direct Effects 23 Category X
Icing 24 Category X
ESD 25 Category X
Flammability 26 Category X