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Electronics International SR-8A User Manual

Electronics International SR-8A
25 pages
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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:
S/N:
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Electronics International SR-8A Specifications

General IconGeneral
BrandElectronics International
ModelSR-8A
CategoryMeasuring Instruments
LanguageEnglish

Summary

Important Notice

Warranty

Warranty Exclusions

Lists conditions under which the warranty does not apply, such as misuse or improper installation.

Warranty Limitations

States the warranty does not extend to connected devices or systems.

Scope of Warranty Obligation

Defines the manufacturer's obligation as repair, replacement, or refund at their discretion.

Shipping and Damage Responsibility

Manufacturer is not responsible for shipping charges or damages incurred.

Representative Liability Limitation

No representative can assume liability beyond the stated warranty terms.

Return Policy for Non-Acceptance

Allows product return within thirty days for a refund if warranty terms are not accepted.

Implied Warranty Disclaimers

Disclaims implied warranties and liability for consequential damages.

Operating Instructions

Product Features Overview

Introduces the Smart Analyzer's capabilities and features.

Multi-Function Capability

Explains the 8 channels, analyzer channels, and temperature measurement options.

Mode Select Switch Operation

Details the Manual, Step, and Scan modes of the mode select switch.

Hottest Cylinder Indicator

Describes how the indicator shows the hottest cylinder during scan mode.

'Temp Prob' Warning Light Functionality

Explains the 'Temp Prob' warning light in Manual and Scan modes.

DC Differential Condition Indicator

Explains the 'DC' indicator for temperature spread exceeding limits.

Scan Rate Adjustment

Details how to adjust the scan rate using a screwdriver.

Peak Locate Button Operation

Explains the purpose and use of the Peak Locate button.

Backlight and Indicator Intensity Control

Describes controlling display backlight and channel indicator intensity.

Operating the Smart Analyzer in Your Aircraft

Provides guidance on operating the analyzer during different flight phases.

Operating During Taxi

Recommends Manual Mode during taxi to avoid false warnings.

Operating During Run Up

Suggests manual or scan mode for checking temperatures during run up.

Operating During Takeoff

Recommends Scan Mode during takeoff and notes potential 'Temp Prob' light.

Operating During Climb

Recommends Scan Mode for automatic diagnosis during climb.

Operating During Cruise

Discusses engine leaning during cruise for efficiency and health.

Rough Leaning Procedure

Details the steps for rough leaning using the analyzer.

Precision Leaning Procedure

Explains how to perform precision leaning for optimal EGT.

Identifying Peak EGT Cylinder

Describes how to find the cylinder that peaks first for verification.

Operating During Descent

Recommends Manual Mode during descent to check for shock-cooling.

Installation Instructions

Important Information and Initial Check Out

Crucial pre-installation steps, including warranty, mechanic familiarity, and approvals.

Instrument Setup and Configuration

Explains setting the four switches on the back panel for aircraft configuration.

Switch Settings for Aircraft Configuration

Details the settings for switches 1, 2, 3, and 4 for different engine types and features.

CHT Probe Installation

Instructions for installing CHT probes on the hottest and other cylinders.

EGT Probe Installation

Guidance on installing EGT probes in exhaust stacks, including location and hose clamp retightening.

TIT Probe Installation

Instructions for installing TIT probes on the turbo-charger inlet.

Oil Temperature Probe Installation

Details for installing oil temperature probes on Lycoming engines.

Oil Temperature Probe Installation (Other Engines)

Instructions for installing oil temperature probes on engines with a 5/8"-18 oil drain plug.

Carburetor Temperature Probe Installation

Guidance for installing a carburetor temperature probe in the carburetor housing.

OAT Probe Installation

Instructions for mounting the Outside Air Temperature probe in an appropriate location.

Marking Extension Cables

Explains how to mark extension cables with their function using heat shrink.

Routing Circular Connectors

Instructions for routing the Circular Connector from the instrument panel.

Routing Extension Cables

Guidance on routing extension cables to probes and handling excess length.

Attaching Extension Cable Connectors

Details on attaching Red Slip-on and Yellow Precision connectors to extension cables.

Hooking Up Connecting Wires

Instructions for connecting power, ground, and dimming wires.

Instrument Installation

Steps for physically mounting the instrument panel using screws.

System Ground Test

Procedure to test the instrument and connections after installation.

Troubleshooting Suggestions

Instrument Check Out

Steps to diagnose potential instrument problems by checking inputs and power.

Probe Check Out

Methods for testing the probes using an ohmmeter or swapping channels.

Extension Cable Check Out

Steps to diagnose issues with extension cables, including poor connections and crimps.

Specifications and Operating Features

Instrument Specifications

Lists key specifications like model, weight, power, display, accuracy, and probe types.

Operating Features Summary

Summarizes features like scan rate, peak locate, hottest cylinder indicator, and warning lights.

SR-8A Wiring Diagram

SR-8A Sample Wiring Diagram (6-Cylinder)

Appendix A: Adding a Channel

Procedure for Adding an Extension Channel

Outlines the steps to add an extension cable to an unused channel.

Appendix B: Circular Connectors

Circular Connector Diagrams

Provides diagrams of the Extension Cable and Connecting Cable harnesses' circular connectors.

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