HUYGENS OPTICS
CS-2/3 camera strobe manual V01
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Figure 13. Typical connection scheme of a camera and CamStrobe.
Multiple CamStrobes can be connected to a single camera. However, it is important to consider the
maximum current load of the camera port. The CamStrobe has an internal resistance of 1kOhm to
limit the current of the pulse input. Therefore, the pulse input of the CamStrobe requires between 4
and 24mA, depending on the supply voltage used for generating the trigger pulse.
Connection to an external pulse generator
CamStrobe units can also be connected directly to an external pulse generator, provided that it is
producing a pulse of at least 1 µs wide and meets the specified values for voltage and current.
Note:
It is important to notice that this pulse voltage level on the pulse (+) terminal is defined with
respect to the voltage on pulse (-) terminal of the strobe unit, not with respect to ground or the
power supply minus terminal. This is because the connections for the pulses are galvanically isolated
from the rest of the device by means of an opto-coupler. This galvanic separation can be overruled
by connecting the power supply 0V, ground (GND) and sensor power (-) terminal. The figure shows
an example schematic for connecting an external inductive sensor.
Figure 14. Example connection scheme when using an external inductive sensor as a direct trigger.
Maintenance
The device can be cleaned using a damp cloth with a soap solution or isopropanol. Aggressive
solvents such as acetone or thinner should never be used, since they can damage the device surface
and the transmission quality of the lenses.
