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Electronics International SR-8A, Инструкции по эксплуатации и монтажу

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OI 020481 and II 012881

Electronics International Inc. 

®

Smart Engine Analyzer

(SR-8A)

Operating and Installation Instructions

S0210921

1/28/88

Rev. C: 2/2/93 *

63296  Powell  Butte  Highway  •  Bend  OR  97701  •  (541)  318-6060

You  must  read  this  manual  before  installing  or  operating  the  instrument.

Model:

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Содержание SR-8A

Страница 1: ...tional Inc Smart Engine Analyzer SR 8A Operating and Installation Instructions S0210921 1 28 88 Rev C 2 2 93 63296 Powell Butte Highway Bend OR 97701 541 318 6060 You must read this manual before installing or operating the instrument Model S N ...

Страница 2: ... a refund Contact Electronics International inc for details Check that the instrument make and model marked on the side of the instrument and on the invoice are correct before starting the installation It is possible for any instrument to fail thereby displaying inaccurate high low or jumpy readings Therefore you must be able to recognize an instrument failure and you must be proficient in operati...

Страница 3: ...stallation 11 7 Carb Temp Probe Installation 12 8 OAT Probe Installation 12 9 Mark Each Extension Cable 12 10 Route The Circular Connector 13 11 Route Each Extension Cable 13 12 Hook Up Connecting Wires 15 13 Instrument Installation 15 14 System Ground Test 15 Troubleshooting Suggestions 16 Specifications and Operating Features 18 SR 8A Wiring Diagram 19 SR 8A Sample Wiring Diagram For Single 6 Cy...

Страница 4: ... 3 The obligation assumed by Electronics International Inc under this warranty is limited to repair replacement or refund of the product at the sole discretion of Electronics International Inc 4 Electronics International Inc is not responsible for shipping charges or damages incurred under this Warranty 5 No representative is authorized to assume any other liability for Electronics International I...

Страница 5: ...hannels For a 6 cylinder engine the first 6 channels should be used for EGT or CHT engine analysis These channels are designated as Analyzer Channels The Peak Locate Hottest Cylinder Indicator and Differential Warning features are only functional on the analyzer channels The EGT Overtemp and Lowtemp TIT Overtemp and Lowtemp and the CHT Overtemp features are functional on all channels The Smart Ana...

Страница 6: ... stable This unique operating characteristic allows the Smart Analyzer to stand watch over your engine during most phases of a flight But if the engine temperatures are decreasing or low as they would be at idle the Smart Analyzer should be placed into the Manual Mode of operation to eliminate any false Low limit or Differential Condition problems it may find Generally this only happens when the t...

Страница 7: ... the PEAK botton on the front panel 5 DC Differential Condition Indicator In the Scan Mode any time there is a temperature spread between any analyzer channel that exceeds the set limit the Smart Analyzer will stop the scan light the Temp Prob warning light and a DC will appear in the top left corner of the display This DC indicator will allow you to distinguish a differential problem from any oth...

Страница 8: ...is turned up the Green Channel Indicators will dim If you find the Green Channel Indicators to be too bright during daytime operation turn the Panel Light Rheostat up slightly to control the intensity of the Green Channel Indicators to suit your requirements Operating The Smart Analyzer in Your Aircraft 1 Taxi During taxi the exhaust gas temperatures will be below the Lower Temperature Limits 1100...

Страница 9: ...aust valves Under certain conditions these deposits invite preignition and higher maintenance costs Proper leaning at cruise during cool or cold weather aids in raising engine and oil temperatures to desirable minimums in order to evaporate the water and acids out of the oil Water and acids attack the insides of an engine causing rust and corrosion To properly lean your engine using the first 4 6 ...

Страница 10: ...ngines As a result these engines tend to operate smoother at 25 F on the rich side of peak EGT The fuel injected engines will provide a more precise peak Most engines normally operate within an EGT range of 1200 F to 1600 F at cruise power Some engine manufacturers allow leaning to peak EGT at 75 power and below on their direct drive nor mally aspirated engines For your engine check the engine man...

Страница 11: ...should use current aircraft standards and practices to install this instrument refer to AC 43 13 3 Check that any necessary FAA Approvals STC s etc are available for your aircraft before starting the installation An E I dealer should have a copy of the current AML Resolve any issues you may have before starting the installation 4 Read the entire Installation Instructions and resolve any issues you...

Страница 12: ...n existing unit in the aircraft it is the installer s responsibility to move or replace any existing instruments or components in the aircraft 2 Instrument Setup There are four small switches on the back of the Smart Analyzer used to program this unit for your aircraft Set the switches below using a ball point pen 9 5 Installation Instructions 1 Important Information and Initial Check Out ...

Страница 13: ...uel to the cylinders as well as most fuel injected engines and generally have a wider EGT spread If you find your EGT s are always within 95 F hottest to coldest cylinder you may want to set this switch DOWN for better sensitivity e Swt 4 CHT Analysis If the first 4 or 6 channels are to be used for CHT analysis set this switch DOWN This will set the Differential Warning limit to 95 F The temperatu...

Страница 14: ... the slip joint can damage the probe 5 TIT Probe Installation If you currently have a TIT gauge mounted in the aircraft it may be a primary engine instrument If this is the case you will need to install a secondary TIT probe The TIT probe should be installed on the inlet of the Turbo charger one to two inches before the Turbo charger flange Drill a 13 64 diameter hole in the ex haust stack Insert ...

Страница 15: ...ir temperature changes For this reason do not mount the OAT probe in the path of the cowl or engine exiting air i e on the belly of the aircraft Other than this consideration the OAT Probe may be mounted in an air intake vent on the side of the cowling or anywhere else on the aircraft NOTE An OAT probe should be connected to a precision channel on the Smart Analyzer That would be channel 5 or 6 on...

Страница 16: ... varying lengths in instrument wires 11 Route Each Extension Cable Starting from under the instrument panel route each Extension Cable to its appropriate probe If new connectors are to be installed on the ends of the cables you may want to pull any excess cable length through the fire wall and cut it off at this time However it is recommended you leave some extra wire length under the instrument p...

Страница 17: ...e to the terminal marked and the red lead to the other terminal The insulation on these wires should almost touch the mounting screws Replace the yellow cap on the Female Precision Connector Be careful not to overtighten any screws or twist the wires when installing the connector Plug each probe into its associated Extension Cable Be sure the connectors mate properly When tie wrapping these cables...

Страница 18: ...trument is to be mounted directly under a speaker you will need to install a magnetic shield This is a U shaped piece of steel sheet metal Contact E I Inc for details Connect all the Circular Connectors to the Smart Analyzer in the following manner A Push the two mating connectors together and twist them until they snap into position B Turn the locking ring on the instrument connector clockwise 1 ...

Страница 19: ...will lead you to the solution for fixing all of the problems Therefore take one problem on one channel and proceed with the following A Instrument Check Out If there is an identical symptom on each channel then the instrument may have a problem But if even one channel of the instrument is operating properly the instrument probably does not have a problem A good method to test the instrument is to ...

Страница 20: ... get the tab on the male connector to wedge between the red nylon and metal receptacle in the female connector This connection may work for a few weeks or even months and then you will start to see jumpy readings Disturbing the connection without actually fixing it will get it to work for a short time and then the problem will reappear Physically check your connections at the probe for a proper ma...

Страница 21: ...K any length or size you may use your existing type K cables to reduce cost and installation time Channels 6 or 8 Programmable from back panel Analyzer Channels 1 4 or 1 6 EGT or CHT Programmable from back panel Scan Rate Adjustable from 2 to 10 seconds Peak Locate Finds hottest analyzer channel within 6 F Hottest Cylinder Indicator Indicates hottest analyzer channel during scan within 6 F an arro...

Страница 22: ...nnel marked on ext cable Connecting Wire Harness White Brown White Red White Orange Red Black White Yel 12V Back Light 24V Back Light LED Dimming Power Lead Ground Lead 12V Bus 24V Bus Gnd for 12V system Panel Light Rheostat 12 24 Volt Bus via 1 amp fuse Ground Description Connects To Optional External Warning Control Line Can be connected to a relay to control an external light buzzer etc This li...

Страница 23: ... EGT 5 EGT 6 CHT OAT Back View SR 8A Connecting Wire Harness White Brown White Red White Orange Red Black White Yel 12V Back Light 24V Back Light LED Dimming Power Lead Ground Lead 12V Bus 24V Bus Gnd for 12V system Panel Light Rheostat 12 24 Volt Bus via 1 amp fuse Ground Description Connects To Optional External Warning Control Line Can be connected to a relay to control an external light buzzer...

Страница 24: ...nnectors are installed do not try to remove them without an extraction tool Unless an extraction tool is used you can damage the Circular Connector An extraction tool may be purchased from Electronics International Inc 4 Follow the appropriate steps in the Installation Instructions for mounting the probes and routing the Extension Cables 5 Reconnect the Circular Connector to the back of the SR 8A ...

Страница 25: ...Yel 7 Yel 8 Yel 2 Red 3 Red 5 Red 4 Red 6 Red 8 Red 7 Red Note 1 Red Channel 1 Red wire 1 Yel Channel 1 Yel wire 3 1 4 7 9 6 W Red Blk Extension Cable Harness Back View wire side OR Connecting Cable Harness Back View wire side Instrument Connector Front View Red W Brn W Org OR Note See Wiring Diagram for hook up information 22 W Yel ...

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