Flash Duration (Brgt) Settings
The flash duration, “Brgt”, can be set within the range of 0.1°-2.5°
over a 360° period.
1 = 0.1 degree ; 100 = 2.5 degree.
When the flash duration is lengthened, the brightness of the flash
will be increased, however the image of the target object may
appear slightly out of focus. When the flash duration is shortened,
the brightness will be decreased, yet the image of the target ob-
ject will become more focused. To change the flash duration in
either Internal or External modes,
From the home display, press the • key. Once pressed, the Brgt
icon will blink. The flash pulse duration or brightness can now be
modified from 1-100 values.
External Trigger Mode
External trigger mode will allow the flash rate of the ST-4000 stro-
boscope to be controlled by an external signal, such that the flash
rate will automatically increase or decrease when the signal is al-
tered, so that it may remain in unison with the speed of a chang-
ing target.
Connector of External Input (EXT connection on bottom of han-
dle)
External Sensor Input: 12 V Pulse
Sensor Power Supply: 12 V dc up to 200 mA
Input frequency: over 50 μs.
Note: When the external sensor is used, the AC power adapter
must be connected to the unit.
Wiring:
1.
Red - +12 V
2.
Black - Ground
3.
Yellow – Sensor Signal Pulse Input
3
External Sensor
Connection Symbol
