Electronics International CA-1 - Manual (Page 6)

OPERATING INSTRUCTIONS
Features
1. Instruments:
The Electronics International line of single and multi-channel instruments offer the following features:
A. Digital Display - The digital display allows you to read absolute temperatures at a glance. It does
not require interpretation of dials or tic marks. In a short period of time you will be come familiar with
the normal operating temperatures of your engine. Abnormal temperatures will be easy to spot. The
digital display is easily viewable in direct sunlight. If the instrument backlight has been permanently
powered up (as recommended), the digital display will be easier to see during low ambient light condi-
tions and at night.
B. 1 Degree Resolution - The digital display resolves temperatures to 1 degree. This allows you to
interpret trends quickly. This can be very helpful in diagnosing problems and leaning your engine.
Also, any unit may be ordered to display in degrees F or degrees C.
C. 1/2% Accuracy - Electronics International instruments are not affected by shake, shock, vibration,
tilt, stick-slip, bearing wear, spring wear, lead resistance, probe resistance, magnetic fields or the many
other factors that plague analog instrument accuracy. All E.I. instruments are temperature compensated
to read cabin temperature when a probe is disconnected. E.I. instruments should never need
recalibration. Carburetor and outside air temperatures are measured on precision channels. If a non-
precision channel (i.e., EGT, CHT, etc.) is used to measure Carb. Temp or OAT there can be a
several degree temperature error. A precision channel uses a single yellow connector.
D. Flexibility - Electronics International instruments are compatible with any type K ungrounded
probe. This means any instrument, regardless of what is printed on the front panel (EGT, CHT, OAT,
etc.), will work with any of our probes (i.e., an OAT channel can read EGT or CHT probes accurately).
Also, lead resistance does not affect the accuracy of these units. You may use any length extension
cable between the unit and the probe without affecting the accuracy of the instrument.
E. Upgradable - Any single channel EGT and/or CHT unit may be upgraded to a full multi-channel
analyzer by simply adding a remote switch to the system. The instruments, remote switches, extension
cables and probes were designed in a modular fashion with slip-on connectors. This means a remote
switch may be added to your existing system by simply mounting it into your instrument panel, install-
ing the additional wires and probes and plugging it in. You do not have to buy a new system to upgrade
to a full analyzer.
3
Selector Switch.
Digital Display.
Ice Zone Warning Light. Only available on
the Carb. Temp/OAT instruments.