American Aerospace Corporation
ST-4000i Flash Analyzer
ST4000i-OM-01 Rev C
PAGE 9
6.0 Testing Instructions
The following instructions apply when testing aircraft strobe lights. When the
system is used in a shop facility environment, the same procedures still applies.
The system is calibrated to measure the strobe light intensity with the
detector
located eight (8) feet (2.44 meters), +/- 2 inches (+/- 5 cm) from the light source.
This requirement is met by the operator using the Laser distance meter
(provided) to maintain 8 feet (2.44 meters) separation between the test
instrument and the Strobe Light source.
It is critical to have the detector in a
horizontal plane with the strobe light.
NOTES: A. Light intensity measurements should NOT be taken outside
during sunlight hours. Best results will be obtained in a hangar
or, if outside, after sunset.
B. Minimize possible reflections. (See Note in Section 5.0).
C. Ultraviolet (U.V.) protective eye-wear must be worn by the
operator(s) during the testing process.
The ST-4000i, detector and Laser distance meter is packaged in an all in
one unit. Test procedures are as follows.
A. Inspect the light lens in Detector for cleanliness and general condition.
B. Turn ON the ST-4000
i
as shown in section 3.2E
C. Depending on the color of the Light source (RED or WHITE) being tested,
choose the app that applies to your application. The ST-4000
i
will
automatically “ZERO” by measuring the ambient lighting conditions
between each flash and adjust the
instrument
accordingly.
D. Turn on the Laser Distance meter (Blue PWR button on left the side)
Figure 6.0. Use the same PWR button to cycle to the ruler icon (Continues
Measure mode) Figure 6.1. The laser from the distance meter will turn on.
Visually confirm the laser is on the surface of the Strobe light being tested,
then press
“MEASURE”. The laser distance meter will provide continues
distance measurement. Maintain an 8 feet distance between the strobe
light and Tester.
FIGURE 6.0: Power / toggle Button FIGURE 6.1: Continues measure mode
Pointer to ruler icon
