Itm Accutek III, Руководство по эксплуатации

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Section 4
Ignition Coils
The ACCUTEK III is designed to test most industrial ignition coils by
discharging a storage capacitor at 1.0 Hz across the primary side of the
ignition coil. The voltage stored on this capacitor is user adjustable from
approximately 100 V.D.C. to approximately 350 V.D.C. This allows the
operator to evaluate the characteristics of most industrial ignition coils.
Ignition Coils - General Notes
When inspecting ignition coils, the ignition coil should be checked for
the following:
• Evidence of physical damage which could hinder the ignition coil
from performing in both its physical and environmental surround-
ings, eg. distorted case, cracked housing, damaged connector, dam-
aged threads, etc.
• Close evaluation of the primary connector, locating pin, connector
pins, connector threads, secondary threads, epoxy, teflon, or ceram-
ic insulator condition, secondary tower/spring, etc.
• Ignition coil manufacturers typically specify an operating temper-
ature of approx. 200 deg. F (93 deg. C) for ignition coils. Therefore
check ignition coil operating temperatures.
• If corona action (viewed as corrosive erosion) is present on the sec-
ondary tower, the corrosion must be removed and if damage has
occurred to the spring, it should be replaced. If the erosion has
damaged the secondary tower, the ignition coil should be replaced.
CAUTION REFER TO SECTION 2.
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The following procedure on resistance testing applies to both shielded
and unshielded ignition coils.
4.1 Resistance Test
Ignition coil primary resistance tests are usually measured between ter-
minals “A” and “B” on a shielded ignition coil or (+) and (-) on an
unshielded ignition coil. Ignition coil secondary resistance is usually
measured from the secondary tower to the (-) or “B” terminal. If in
doubt please check with the ignition coil manufacturer.
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