Glass Panel Engine Monitor MVP-50T (for Turboprops and Jets) Installation Instructions II 1211061 Rev. C: 5/2/09 You must read this manual before installing or operating the instrument. This manual contains warranty and other information that may affect your decision to install this product and/or the safety of your aircraft. 5.55" W x 5.15" H x 2.4" D Model #: S/N: Electronics International Inc. 63296 Powell Butte Hwy • Bend, OR 97701 • (541) 318-6060 • Buy-EI.
Important Notice ***** MUST READ ***** Page 1 of 4 If you think it is not important to read this manual, you're wrong! This manual contains important operating information that may affect the safety of the pilot, passengers, aircraft, operation of the system or time to install the system. You MUST read the manual prior to installing this system. Any deviation from these installation instructions is the sole responsibility of the installer and should be done in accordance with AC 43.13.
Important Notice ***** MUST READ ***** Page 2 of 4 Do not install a non-certified MVP-50T (MVP) in a certified aircraft. A certified MVP lists the applicable TSO numbers at the bottom of the Model Label. Before starting the installation make sure the unit will fit in the location you intend to install it without obstructing the operation of any controls. Before using the Weight and Balance screen check that the “Weight and Balance Setup” data in the MVP System Configuration Menu is accurate.
Important Notice ***** MUST READ ***** Page 3 of 4 Fuel Level Accuracy Limitations: The accuracy limitations of the MVP are listed below. It is the pilot/owner’s obligation to make anyone flying the aircraft aware of these limitations. 1. Angle of Attack - The MVP must be calibrated with the aircraft in a cruise angle of attack. If the aircraft is in an angle of attack other than cruise, the MVP may display inaccurate fuel levels (depending on the mounting location and type of sensor used).
Important Notice ***** MUST READ ***** Page 4 of 4 Important Fuel Level Considerations: DO NOT RELY SOLELY ON THE FUEL LEVEL DISPLAYED ON THE MVP TO DETERMINE THE FUEL LEVELS IN THE AIRCRAFT. The use of the MVP does not eliminate or reduce the necessity for the pilot to use good flight planning, preflight and inflight techniques for managing fuel. It is important the pilot adopt the practices listed below. If you are not familiar with these techniques, contact the FAA to acquire proper training. 1.
Contents (Page 1 of 2) Warranty/Agreement----------------------------------------------------------------------------------- 1 1.0 System Overview ----------------------------------------------------------------------------------- 3 1.1 System Description --------------------------------------------------------------------------- 5 1.1 1.2 1.3 1.
Contents (Page 2 of 2) 3.6 Connect the RFLM-4-x Harness to the EDC Connector and to the Resistive Fuel Level Sensor ----------------------------------------------------------------------------3.7 Connect the EDC Harness to the Capacitive Fuel Level Probes ------------------3.8 Connect the EDC Harness to the P-300M Magnetic Fuel Level Senders --------3.9 Connect the EDC Harness (Volts Measurement Pin) to the Bus -------------------3.
7.0 Troubleshooting ------------------------------------------------------------------------------------7.1 MVP or EDC Problem: -----------------------------------------------------------------------7.2 Pressure Problem with one Function: ------------------------------------------------------7.3 Temperature Problem on all Channels: ----------------------------------------------------7.4 Temperature Problem with one Function: ------------------------------------------------7.
Warranty / Agreement Electronics International Inc. (EI) warrants this instrument and system components to be free from defects in materials and workmanship for a period of one year from the user invoice date. EI will repair or replace any item under the terms of this Warranty provided the item is returned to the factory prepaid. 1. If you do not agree to and accept ALL the terms of this Warranty/Agreement, DO NOT Install Product..
8. Electronics International is not responsible for shipping charges or damages incurred under this Warranty. 9. No representative is authorized to assume any other liability for Electronics International Inc. in connection with the sale of Electronics International Inc. products. 10. You must read the entire Installation and Operating Instructions for this instrument.
System Overview 1.1 System Description 1.1.1 MVP Display: 1.1.2 EDC-33T: 1.1.3 Probes, Transducers and Modules: 1.1.4 Wiring & Extension Cables: 1.2 Operational Overview: 1.3 Installation Overview: 1.4 Password Protection: 1.4.1 Level #1 Password (Maintenance): 1.4.2 Level #2 Password (OEM/Experimental): 3 1.
1.1 System Description: The MVP-50 Glass Panel Engine Monitor Installation consists of four major components: the MVP Display, the Engine Data Converter (EDC-33T), the Probes, Transducers & Modules, and the Wiring and Extension Cables. 1.1. MVP Display: Master Warning LLight ights To Pwr & Gnd GPS Audio Panel The MVP Display unit measures 5.55" wide by 5.15" high by 2.4" deep and is designed to be mounted from behind the aircraft instrument panel.
1.1.4 Wiring & Extension Cables: The extension cables and wiring provide the connections from the probes, modules or direct connections to the EDC inputs. Once the Wiring and Extension Cables are installed into the aircraft they become semi-permanent. Everything else (MVP, EDC, Probes and Modules) can be easily disconnected and removed. 1.
B. Probes and Transducers are installed. C. Control Panels, Pots and Warning Lights are installed. D. The EDC is installed. This should be installed on the inside of the cockpit or in an instrument bay. For a twin-engine aircraft it can be installed on the backside (not the engine side) of the firewall. E. The Wire Harnesses are installed. The wire harnesses for the EDC and MVP are pre-wired and included in the kit. F. Field Calibration/Setup steps are performed.
The password protects the MVP from unauthorized access to calibration data. If calibration data is improperly changed, it could lead to engine or aircraft damage and/or personal injury. Once the MVP is installed and checked out, the password should be changed (on either the certified or non-certified unit) to a unique number and it should be protected from unauthorized access.
Hardware Installation 2.0 2.1 Important Information and Initial Checkout: 2.2 Review the "EDC Wiring Work Sheets:" 2.3 Verify You Have all the Probes, Modules, Transducers and Cables: 2.4 Install the MVP Display: 2.5 Install the Temperature Probes: 2.6 Install the Pressure Transducers: 2.7 Install the Interface Circuit for Annunciators: 2.8 Install the Interface Circuit for Flap and Trim Pots: 2.9 Install the Interface Circuit for the Gear Position, Unsafe Indicator and Gear Warning: 2.
2.1 Important Information and Initial Check Out: A. The installer and aircraft owner must read the Warranty/Agreement before starting the installation. There is information in the Warranty/Agreement that may alter your decision to install this instrument. If you do not accept the terms of the Warranty/Agreement, do not install this instrument. B.
2.2 Review the "EDC Wiring Work Sheets:" There are a number of probes and extension cables that will need to be installed. The key to keeping the installation simple is to organize the work using the "EDC Wiring Work Sheets" supplied with this kit. Review the functions assigned to each EDC input on the EDC Wiring Work Sheets. The work sheets are prepared at the factory with the functions and probes already assigned. 2.
the pilot’s eye to the instrument panel. In most aircraft, installing the MVP-50P to the right of the radio stack would be acceptable. In some aircraft, the visual centerline falls to the right of the Attitude Indicator. If the powerplant instrument cannot be installed within 8" of the pilot’s visual centerline, AC 23.1311-1B recommends Master Caution and Warning Lights be installed. Installation of Master Caution and Warning Lights is covered in this manual.
2.6 Install the Pressure Transducers: To EDC Press Input (Red) (Blk) (Grn) (Top Connector) (Wht) Install only the Pressure Transducers applicable for your configuration. A. Torque Pressure Transducer Installation: Some engines have a High and Low Torque pressure ports. These engines will require two pressure transducer to be installed. The MVP system can interface with many different types of pressure transducers.
C. Fuel Pressure Transducer Installation: To EDC Press Input (Red) (Blk) Find a convenient location on the firewall and mount (Top Connector) (Grn) (Wht) the pressure transducer with the clamp provided. Do not mount the pressure transducer to an engine baffle or directly on the engine with the transducer supported by an adapter or fitting. Vibration can cause the adapter to break, resulting in loss of engine oil. The pressure transducer is equipped with an 1/8" NPT male port.
Connect the aircraft static line (airspeed) line to the port on the PT-30Alt. Be sure this line is tight. The port is a 1/4" flare union. Care should be taken not to put excess pressure on the flexible line. Make To EDC sure the flexible line does not Press Input kink. .170" ID Flexible Tube Aircraft Static Line (Top Connector) G.
2.8 Install the Interface Circuit for Flap and Trim Pots: Elevator, Aileron and Rudder trim (as well as Flap position) can be monitored and displayed on the MVP. In most cases the position of these surfaces are monitored using a Ray Allen 5K ohm pot. The following circuit may be used to interface with a 1K to 100K pot. 4.99K, 1%, 1/4W Resistor Bus 1K to 100K VI-221 Ray Allen Pot EDC Temp or Resistive Fuel Level Channel. 2.
Gear Up Warning: To provide a Gear Warning the MVP must monitor Gear Position, Airspeed and Manifold pressure. A voice warning is activated on the following logic: (Any Gear is up -OR- the Unsafe Indicator is on)) AND Airspeed is less than a set value AND N1 is less than a set value. Note: See the “Aircraft Number, Gear Warning and TAS Setup” screen to set values. Gear and Unsafe Interface Circuit Tap into the switched side of the Light VI-221 EDC Temp or Resistive Fuel Level Channel.
2.12 Install the Fuel Flow Transducer: The MVP can interface to many different types of flow transducers or the FT-180 Fuel Flow Transducer may be considered for installation. The FT-180 should be mounted in the appropriate fuel line. Refer to the installation notes listed below. A. Only the Electronics International FT-180 fuel flow transducer (or an equivalent unit) should be considered for use on a turboprop or jet engine.
2.13 Install the P-300C Fuel Level Probes: Install the P-300C (Capacitive) Fuel Level Probes in accordance with the aircraft manufacturer’s instructions. 2.14 Install the P-300M Magnetic Fuel Level Sender: The MVP system can interface with an aircraft’s existing resistive fuel sensors via the RFLM-4 or these resistive fuel level sensors can be replaced with the P-300M (Magnetic Float) Fuel Level Sender.
2.15 Install the Resistive Fuel Level Module (RFLM-4-X): The RFLM-4 is a Resistive Fuel Level Module that provides pull-up resistors for 4 resistive fuel level sensors. This module is required to interface an EDC Resistive Fuel Level Input to a resistive fuel sensor. There are two RFLM-4 modules available. The RFLM-4-12V operates on a 12-volt electrical system and the RFLM-4-24V operates on a 24-volt electrical system. The appropriate model must be used in your installation.
B. Mark the aircraft instrument panel and drill a 1/4" hole for the Pot. C. Mount the Pot from behind the aircraft instrument panel and install the knob. 2.18 Install the Master Warning (red) and Caution (yellow) Lights: The Warning and Caution Lights do not have to be installed unless the MVP is installed more than 8" from the pilot’s visual centerline. A. Locate the Red (AL-1R) and Yellow (AL-1Y) lights in the kit. Find an appropriate mounting location within 8" of the pilot's visual centerline.
Install the EDC Wire Harnesses and Route Wires 3.0 3.1 Attach the three EDC 37-pin Wire Harnesses to the EDC: 3.2 Connect the EDC Harness to the Temperature Probes: 3.3 Connect the EDC Harness to the Pressure Transducers: 3.4 Connect the EDC Harness to the Shunt: 3.5 Connect the EDC Harness to the Fuel Flow Transducer: 3.6 Connect the RFLM-4-x Harness to the EDC Connector and to the Resistive Fuel Level Sensors: 3.7 Connect the EDC Harness to the Capacitive Fuel Level Probes: 3.
When routing the EDC wire harnesses refer to the Top, Middle and Bottom "EDC Wiring Work Sheets" found at the back of this manual. Insure no wires obstruct the freedom of travel of any controls. 3.1 Attach the three EDC 37-pin wire harnesses to the EDC: Secure the connectors using the supplied mounting screws. 3.2 Connect the EDC Harness to the Temperature Probes: Route each of the temperature cables in the EDC harness to the appropriate temperature probe.
3.4 Connect the EDC Harness to the Shunt: Shunt Route the EDC Amps wires to the Shunt. The way the Shunt is installed in the aircraft determines which lug of the shunt is "+". The wire on the "+" lug is routed to the starter-generator. The EDC +Amp Input wire (orange) should be connected to the small lug on the "+" side of the Shunt. The EDC -Amp Input wire (brown) should be connected to the small lug on the "-" side of the Shunt. 3.
3.6 Connect the RFLM-4-x Harness to the EDC Connector and to the Resistive Fuel Level Sensors: Route the appropriate resistive fuel level input wires (for the number of tanks to be monitored) in the RFLM-4x harness to the EDC Bottom Connector. Plug the wires into the appropriate resistive fuel level channels. The excessive wire can be cut and spliced, bundeled and tie wraped up or cut to length and new D-Sub pin installed (see the “Working with Connectors” section of this manual for more information).
3.8 Connect the EDC Harness to the P-300M Magnetic Fuel Level Senders: Route the appropriate fuel level wires (for the number of tanks to be monitored) in the EDC harnesses to the P-300M magnetic fuel level senders. Cut the wires to length, install the appropriate connzectors (see the “Working with Connectors” section of this manual for more information) and connect to the P-300M fuel level sender. EDC Resistive Input (1 of 4) Bottom Connector +5V (Red) Gnd (Black) Rin (White) Fuel Tank 1 . .
3.12 Connect the EDC Harness to Power and Ground: Route the power wire (Top Connector, pin 37, Red Wire) to the MVP/EDC 5-amp Circuit Breaker. Route the ground wire (Top Connector, pin 19, Black Wire) to the aircraft ground. EDC-33P Top To Aircraft Ground To the MVP/EDC 5-amp Circuit Breaker MVP RS422 Input MVP RS422-B (pin 12) MVP RS422+A (pin 13) Top Connector Pin 37, Red Wire Pin 19 Black Wire Pin 36, White Wire Pin 18, White/Green Wire 3.
4.0 Install the MVP Wire Harness and Route the Wires 4.1 Attach the MVP 25-pin D-sub Connector to the MVP: 4.2 Connect the EDC RS422 Wires to the MVP RS422 Wires: 4.3 Connect the MVP Harness to the Master Warning and Caution Lights: 4.4 Connect the MVP Harness to the Voice Alarm Control Panel (AV-17CP): 4.5 Connect the MVP Harness to the Audio Panel: 4.6 Connect the MVP Harness to the External Intensity Control Pot (CP-1): 4.7 Connect the MVP Harness to the Moving Map Data Out from the GPS: 4.
When routing the MVP wire harness refer to the "MVP-50 25-pin D-Sub Connector Wiring Diagram" found at the back of this manual. Insure no wires obstruct the freedom of travel of any controls. 4.1 Attach the MVP 25-pin D-sub Connector to the MVP: Secure the connector using the supplied mounting screws. 4.2 Connect the EDC RS422 Wires to the MVP RS422 Wires: Route the EDC RS422 wires to the back of the MVP Display, cut the wires to length and splice them to the appropriate MVP RS422 wires. 4.
4.5 Connect the MVP Harness to the Audio Panel: If the voice alarms provided by the MVP are to be used, route the two MVP Voice Warning Out wires to the Audio Panel, cut the wires to length and connect to the Audio Panel Aux input and ground. If an audio input is not available on the Audio Panel (or an Audio Panel is not installed) you can connect the MVP Voice Warning Out wires to the pilot headset jack. With this installation a 49.
4.9 Connect the MVP "Transmit Lockout Input" pin to the Transmit Key: Pulling the MVP Transmit Lockout Input pin to ground freezes the displayed values for the various functions. This eliminates jumpy readings during transmit. In most (if not all) cases the MVP “Transmit Lockout Input" does not need to be connected. If transmit lockout is required, attach the appropriate pin (see the “Working with Connectors” section of this manual for more information) to a 20 ga. wire.
5.0 Mandatory System Setup and Checkout 5.1 Power-On Checkout: 5.2 Perform all Steps listed in the "MVP-50P Setup Checklist": 5.3 Ground Run Checkout: 5.4 First Flight Checkout: 5.
5.1 Power-On Checkout: Turn the aircraft master switch on. The MVP will power up and perform a system test. After approximately 14 seconds the MVP will display the “Main Engine” screen with an add fuel message. Press any button to continue. If you have a problem with any of the following steps, see the Troubleshooting section of this manual. A. Check B. Check C. Check D. Check E. Check F. Check G. Check H. Check I. Check J. Check the N1 and N2 for a reading of 000. Fuel Flow for a reading of 00.0.
5.4 First Flight Checkout: Prepare the aircraft for flight. Fly the aircraft in the pattern. Check for proper operation of each function displayed on the MVP. Land the aircraft and perform the following checks as soon as possible: A. B. C. D. Check Check Check Check all fittings, hoses and transducers for leaks. all fittings, hoses, wires, system components and hardware to be secure and are not chaffing. for interference to any controls. for any unsafe condition.
6.0 Installation Data 6.1 Instructions for Continued Airworthiness (ICA): 6.2 Airworthiness Limitations: 6.3 Working With Connectors: 6.3.1 Installing a Red Slip-on Connector onto a TC or Tin Copper Wire: 6.3.2 Installing a Yellow Precision TC Connector onto a TC Wire: 6.3.
6.1 Instructions for Continued Airworthiness (ICA): Maintenance and calibration - are “on condition” only. There are no field adjustments or calibration requirements for the MVP-50P instrument after it has been properly installed, checked off and signed-off by the respective authority. Maintenance of non-functioning or malfunctioning components is limited to removal and replacement of EI manufactured new or EI repaired components.
It is very easy to produce a good crimp. Unfortunately, it is just as easy to produce a bad one. Read the instructions below. A proper crimp will produce a reliable connection for a lifetime. 6.3.1 Installing a Red Slip-on Connector onto a TC or Tin Copper Wire: Red Slip-on Connectors are used on most thermocouple (TC) and insulated wire connections used in the engine compartment. This type of connector is easy to install and only requires an inexpensive readily available crimp tool.
F. Twist Test: Hold the connector with one hand and the wire 1/2" from the connector with the other hand. Twist the connector back and forth (CW to CCW) approximately 10 degrees. With a good connection you will feel twisting strain on the wire with each degree of movement of the connector. Poor connections may pass the first two tests and fail this test. All three tests are important. G. For a proper mate, the tab inside the male connector must be centered (not bent up or down).
thermocouple wire. A pull test can be performed to test the crimp. A ratcheting crimp tool from Tyco (P/N: 91503-1) will crimp both TC and Tin Copper Wire. All crimps must pass a 3 to 4 pound pull test to be considered reliable. To install a D-sub pin onto a 20 ga. Tin Copper Wire, perform the following steps: A. Strip the insulation back 1/8.” Be careful not to knick the wire. B. Insert the pin into the 24 ga. D-sub Pin Crimper.
MVP-50T 25-pin D-sub Connector Wiring Diagram (Back View, Wire Side) 31 47
MVP-50T-PT6 EDC Wiring Work Sheet EDC-33T Volts Wht/Red Top Connector (Back View, Wire Side) EDC Input EDC Pin #'s (Wire Colors for Pressure Probes) Function Probe, Module or Direct Connection to the EDC Power & Gnd +V Pin 37 (Red) Gnd Pin 19 (Blk) N/A RS422 Out RS422 +A Pin 17 or 18 (Wht/Grn) RS422 -B Pin 35 or 36 (Wht) N/A N/A Volts No connection required. Volts is measured on Pin 35 (Wht/Red) the Power Input pin 37.
EDC Wiring Work Sheet MVP-50T-PT6 EDC-33T EDC Input EDC Pin #'s & Wire Colors Function Probe Temp Ch 1 +In Pin 2 (Yel) -In Pin 20 (Red) EGT ITT 1 Probe P-110provided with the Engine.
MVP-50T-PT6 EDC Wiring Work Sheet EDC-33T EDC Input Press Ch9 -In (Wht) Press Ch9 +In (Grn) Press Ch8 +In (Grn) Press Ch8 -In (Wht) Do Not Use EDC Pin #'s & Wire Colors +5 Volts +5 Volts +5 Volts (Wht/Org) Do Not Use Bottom Connector (Back View, Wire Side) Function Probe FL Ch 1 (Resistive Input) Rin Pin 23 (Brn) (Requires a RFLM-4 Module) FL Ch 1 (Capacitive Input) Cin Pin 20 (Wht) +5V Pin 21 (Red) Gnd Pin 22 (Blk) FL Ch 2 (Resistive Input) Rin Pin 4 (Org) (Requires a RFLM-4 Module)
0.120 0.060 ** 0.160 ** 0.120 0.090 0.090 0.120 ** Caution: Panel cutout is not equidistant between mounting holes. 0.120 0.210 ELECTRONICS INTERNATIONAL INC. DATE: DRAWN BY: APPVD.
3.710 0.550 0.550 5.300 5.575 5.850 3.160 0.000 0.275 0.550 3.160 2.350 0.
7.0 Troubleshooting 7.1 MVP or EDC Problem: 7.2 Pressure Problem with one Function: 7.3 Temperature Problem on all Channels: 7.4 Temperature Problem with one Function: 7.5 N1 or N2 Problem: 7.6 Fuel Flow Problem: 7.7 Amp Problem: 7.8 Resistive Fuel Level Problem: 7.9 Capacitive Fuel Level Problem: 7.10 Voltage Problem: 7.
Troubleshooting the MVP system can be relatively simple. First the MVP must be powered-up. This requires only a power and ground connection to the MVP. Next the EDC needs to be powered-up and communicating with the MVP. Power and ground are supplied to the EDC on two wires and the EDC communicates with the MVP on two RS422 wires. A "COM" error will be displayed if the EDC is not communicating with the EDC. The rest of the system is made up of individual functions performing independently of each other.
C. Symptom: “REF” is displayed for the digital value for all temperature functions. 1. Problem: The Middle Connector on the EDC is loose or not connected. The Reference Diode on pin 10 and 28 of the EDC Middle Connector is damaged. Note: Pin 28 should measure 0 volts and pin 10 should measure around .6 volts. a) Action: Inspect the EDC Middle Connector and measure the voltage on pin 10 and 28. D. Symptom: “OVR” is displayed for the digital value for a function. 2.
A. Symptom: Inaccurate, jumpy or zero readings on all channels. 1. Problem: The Reference Diode on pin 10 and 28 of the EDC Middle Connector is damaged. a) Action: Measure the voltage on the Reference Diode. Pin 28 = 0 volts and pin 10 = approx. 0.6 volts. 2. Problem: One of the temperature input channels is over voltaged. This can happen on a channel that is used to monitor an Annunciator, Flap or Trim function. The max input voltage for any temperature or pressure channel is +5 volts.
Some Tach Generators have the common ends of the coils open. In this case one end of a coil should be grounded and the other end routed to the RPM input on the EDC. A. Symptom: Inaccurate, jumpy or zero reading. 1. Problem: Improper connection to the coil. a) Action: Ohm the Tach Gen. pin connected to the EDC with respect to ground. It should measure between 10 and 50 ohms. If this pin is open, you may not be grounding the other end of the coil. Also, it's not uncommon to have a bad coil.
Rapidly tap the White transducer wire to ground. A small fuel flow reading should show on the MVP. 2. Problem: The rotor in the Fuel Flow Transducer is blocked. a) Action: Remove the Flow Transducer from the aircraft. Lightly blow into the transducer and check for the rotor to spin freely. Check for a Fuel Flow reading on the MVP when the rotor is spinning. If the rotor in the Flow Transducer does not spin, hold the transducer over white paper and tap at all angles.
A. Symptom: Inaccurate, jumpy or zero reading. 1. Problem: The RFLM is mis-wired. a) Action: Remove the signal wire to the Resistive Float. Check for a very high (or low, depending on the float type) sensor count in the “Fuel Tank Calibration” screen. Be sure you are displaying the data for the correct tank. The voltage on the open signal wire should measure bus voltage. Short the signal wire to ground. Check the sensor counts go to a low (or high, depending on the float type) reading. 2.
1. Problem: The IMC is mis-wired. a) Action: Measure the voltage on the three wires at the IMC Module (Red wire = +5 volts, Black wire = ground, White wire = +2.5 volts). Remove the Red wire from the IMC module and check the sensor counts on the “Fuel Tank Calibration” screen increase. Be sure you are displaying the data for the correct tank. Touch the wires between the IMC Module and the probe and check that the sensor counts increase. 2.
2. Problem: The MVP is set up incorrectly. a) Action: Check the "Start" and "End" setting in the “4. Redlines, Limits and Color Setup” screen. Check the probe selected in the “1. EDC Input to Function Mapping” screen is "Volts 0-2.5.
8.
Specifications, Functions and Features 0425052 Rev. D: 12/31/08 Models: MVP-50P, MVP-50T, EDC-33P and EDC-33T-XX MVP-50P and MVP-50T Weight: 1.9 Lbs. Environmental: Designed and Tested to TSO (DO-160E, See Enviornmental Qualification Form) Software: Designed and Documented to TSO (DO-178B, Level C) Minimum Performance Standards: TSO-C43c, TSO-C44c, TSO-C45b, TSO-C47a, TSO-C48, TSO-49b and TSO-C55a. Power Requirements: 7.5 to 30 Volts, 0.3 amps @ 24V (Typ), 0.6 amps @ 12 Volts (Typ).
Specifications, Functions and Features Continued Volts: Measured on pin 35 of the EDC Top Connector. Input Resistance: 83.8K Ohms Range: 0 to 40 volts. Sensitivity: 6400 counts per volt. Note: A VI-221 or FM-VA-MVP-xx may be used to measure Voltage on any temperature channel. Amps: Common Mode Input Resistance: > 10 M Ohms Diff. Input Ressitance: 10K Ohms Differential Input: + 2.5V to -.2V Common Mode: +/- 90 Volt to ground Sensitivity: 9.537uV per count.
Functions, Features and Specifications Continued RPM, Turboprop: Two RPM channels are available to measure N1, N2, Ng, Nh, Hp, Hl or other turboprop RPM functions. The “Engine Data, Ports, Timers, etc. Setup” screen provides data to calibrate these RPM values for a given tach generator output. EDC-33T (Both RPM Channels): Input Trigger: +.39V / 0V (Hysteresis) Input Resistance: 20K ohms Max RPM: 125 Hz. Sensitivity: 772.52 sensor counts per Hz. Accuracy: <= .5% EDC-33T-H1: Ch 1, Rotor: Input Trigger: +.
Functions, Features and Specifications Continued Temperature: Input Range: 0 to 2.5 Volts Differential Input Resistance: 12.1K Ohms on each input to ground Sensitivity: 9.537uV per count. Notes: * Any Temp Channel may be used to measure any thermocouple probe or any device outputting a voltage. In this way many different types of function may be monitored through a temperature channel. See EI price sheet for a list of modules available. * A Reference junction is provided to accommodate TC probes.
Functions, Features and Specifications Continued Pressure Altitude: Pressure Altitude is calculated from the input of a PT-30ALT transducer by means of a lookup table entered in the “Pressure Altitude Calibration” screen. Also, this screen provides a temperature compensation value specific for an individual transducer. The normal value is 35. Note: A NACA 2nd order polynomial interpolation is used between calibration points. VSI: VSI calculations are derived from averaging changes in altitude over time.
Functions, Features and Specifications Continued Bar Graph (Lean Operating Mode, MVP-50P): Once the Lean Operating Mode (LOP or ROP) is entered, an EGT must drop 3°F below its current peak to display a Peak Marker. If the EGT for a channel that has reached peak increases 3°F above its current peak, the Peak Marker will be turned off and a new peak will be established (this is a false peak). In the Lean ROP mode only the first EGT channel to reach peak will display a Peak Marker.
Functions, Features and Specifications Continued Option 2: Connect the EDC to the aircraft’s Nose Gear green down light. The state of all three gears will be displayed on the MVP based on the Nose Gear’s state. Select “Gear All” for the probe in Configuration Screen #1. This configuration requires one EDC input. Option 3: Use this option to display only the Left and Right Main Gears (no Nose Gear) from a single input. Select “Gear Main” for the probe in Configuration Screen #1.
Functions, Features and Specifications Continued Flight Timer (MVP-50T): The Flight Timer automatically starts when the N1 goes above a Start setting and stops when the N1 goes below a Stop setting. These settings can be found in the “Engine Data ..... Setup” screen. Some Error Messages “COM” - If communication is lost with the EDC, after 5 seconds all functions requiring signals from the EDC will display “EDC” for its value and an Error Message Box will be displayed.
DO-160 Environmental Qualification Form 0210081 Nomenclature: Multi Function Engine and Aircraft System Monitor Models: MVP-50P-(X) MVP-50T-(X), EDC-33P-(X), EDC-33T-(X) Note: (X) represents the instrument configuration for a specific aircraft, helicopter or blimp make and model. Specifications: Document # 0425052 (can be found in the Installation Instructions) Manufacture: Electronics International Inc.
Vibration 8 Tested to Categories S, R and U, Curves M, B, B1 and G. Covers Fixed Wing: Reciprocating, turboprop, turbojet, turbofan and propfan (all subsonic, supersonic and multi engine). Covers Helicopters: Reciprocating and turbojet. Unknown rotor frequency testing was performed. Note: There were no changes in critical frequencies noted during any test.
Lightning Induced Transient Susceptibility 22 Tested to Category B2XXX. Lightning Direct Effects 23 Category X: No test performed. Icing 24 Category X: No test performed. Electrostatic Discharge 25 Category A.
A Appendix A1.0 Connecting an EDC Input to a Custom Probe A2.
A1.0 Appendix Connecting an EDC Input to a Custom Probe There are five steps to connecting a Custom Probe to an EDC Input, associating it with a Function and displaying that Function on the MVP. 1. Connecting a Custom Probe to an EDC Input: The EDC Temperature, Pressure and Fuel Level Inputs can be interfaced to almost any type of probe.
EDC Capacitive Fuel Level Input: Type: Frequency Input Freq. Range: 0 to 6K Hz. Resolution: Approx. 14 counts per Hz. Maximum Counts Available: Approx 98,000 Trigger Level: 2.1 Volts Input impedance: 33.2K Ohms 2. Assign a Function to the EDC Input: A Function must be assigned to the EDC input connected to the Custom Probe. Functions are assigned in the “1. EDC Input to Function Mapping” screen on the MVP-50. Function Names and Display Units are hard coded into the MVP and cannot be changed.
5. Assign Color Ranges and Limits to the Selected Function: You may set color ranges and limits for the selected Function. The "4. Redlines, Limits and Color Setup" screen provides the necessary parameters. Navigating to the “4. Redlines, Limits and Color Setup” screen. Start with the “Main Engine“screen, push the MENU button. Select “System Configuration Menu.” Select “4. Redlines, Limits and Color Setup” screen.
A2.0 Appendix: Connecting a Second EDC to the MVP A second EDC (Engine Data Coverter) may be connected to the MVP-50 in order to increase the number of analog input to over 60. The primary EDC must already be installed per the MVP-50 installation instructions. The secondary and the primary EDC's are identical units. Primary EDC (Required) Top Connector Pin 36 (Wht) Pin 18 (Wht/Grn) Pin 12 Pin 13 25-pin D-sub Connector Secondary EDC (Optional) 1.
6. Configure the MVP to Receive the Second EDC Input: Power up the MVP and use the buttons to navigate to the "Engine Data, Ports, Timers, etc. Setup" screen from the "System Configuration Screens Menu." Scroll down to the line that reads "Port3 RS232 Input/Output/ Baud:" and select "EDC#2/OFF/19200." Your MVP must be running software with an ID of 2.x.x or greater to use the second EDC. 7. Input Ambient Temp Calibration Data for the Second EDC: Naviguate to the "5. EDC Input Cal.
