Electronics International SR-8A - Manual (Page 6)

Features Operating Instructions
A set of switches on the back of the Smart Analyzer allows the unit to be set up for a 4 or 6-cylinder engine,
fuel-injected or carbureted engine and to scan 6 or 8 channels (see Installation Instructions for more informa-
tion).
2. Mode Select Switch:
A) Manual Mode - With the Mode Select Switch in the center position, the Smart Analyzer will display the
temperature on the channel designated by the green Channel Indicators.
B) Step Position - When the Mode Select Switch is pressed to the right, the Smart Analyzer will advance to
the next channel. When this switch is released, it will return to the center position (Manual Mode). The
Smart Analyzer can be set up to step through 6 or 8 channels from the back panel (see Installation Instruc-
tions).
C) Scan Mode - In the Scan Mode, the Smart Analyzer will automatically scan through the channels. When
the unit is first placed into the Scan Mode, it will switch to Channel One to start its scan. This is done to
establish a reference for the automatic engine analysis features.
The Smart Analyzer may be placed in the Scan Mode during runup, takeoff, climb or cruise, as long as the
engine temperatures are increasing or 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 throttle is decreased or you are operating at low throttle settings.
3. Hottest Cylinder Indicator:
In the Scan Mode, an arrow will appear in the display any time the Smart Analyzer is displaying the hottest
analyzer cylinder. This feature allows you to determine if the leanest cylinder has changed. If this happens,
you may need to readjust your mixture.
4. "Temp Prob" Warning Light (Automatic Engine Analysis):
A) Manual Mode - In the Manual Mode, if the temperature on the displayed channel exceeds 1650’F, the
red “Temp Prob” warning light over the display will come on, indicating this is a TIT or EGT channel and it
is over its temperature limit. To eliminate false warnings, all other warning features of the Smart Analyzer
are disabled in the Manual Mode of operation.
B) Scan Mode - In the Scan Mode, all the automatic temperature warning features of the Smart Analyzer
are enabled. The scan will stop and the “Temp Prob” warning light will come on any time one of the follow-
ing problems occurs:
4