ECLAIR ACL, Operating Manual

Page: 20 / 36

FUNCTIONS OF THE
ELECTRONIC BASE 150 E
a) On/off switch (32)
This is a double action switch : it puts
under tension the diodes of the exposure
indicator, without starting the camera. Or it
sends the power supply to the motor to start
the camera. tee page 24 detailed instruction.
b) The clapper switch (20)
In the central position this switch
provides no clapper.
In outside right position : the clapper is
automatic and provides fogging of the film for
0,3 secondes at each start.
In inside left position : the clapper
functions (0,3 seconds) at every manual
pressure when the camera is running; this
allows, for example, to clap at the end of
filming, before switching off the motor.
Thus, the clapper ensures two func-
tions 1 0 - Automatic fogging of the film during
0,3 seconds at each start of the camera or
manually at any moment. 20 - The supply of
an 8 volt signal to the battery during 0,3
seconds (bloop) if the pilotone module is
connected to the battery and the recorder, the
signal triggers a 1 Kc signal on the recording
tape.
c) The running signal:
A 12 volt signal available from the Jeager
socket supplies the pilotone module and
ensures that the module only produces a 12
volt signal when the camera is running.
This signal can also be used to start a
sound recorder from a distance.
d) The output signal :
1 - Tachometric signal
This 3,8 volts square signal (peak to
peak) is supplied by the motor. Its frequency is
given by the motor speed multiplied by 40, that
is to say 1000 Hz for 25 images per second and
960 Hz for 24 images per second. This signal
directly supplied by the motor can be used for
various purposes after it has been divided.
2 - Crystal signal (for MIALA motor only) :
This is a 100 mV sine signal (peak to
peak). Its frequency is 1024 KHz for 25 frames
per second and 983.04 KHz for 24 frames
persecond.
Schema UV
Schema VX
32
Fig. TU
20
To see the
big-ass view
go to page 35!