BRUEL & KJAER 2305 - Page 27

NOTE: The changing from "Forwar d" to "Reverse" and vice versa can be
carried out during the running of the dr ive syst em.
SINGLE CHART-CONTINUOUS RECORDING pushbutton.
Single char't recording (250 mm of paper): The 1 : 10 synchronizing gear must
be
engaged (Lever X pulled out) and the START-STOP toggle switch in
position
"Start", also refer ' to previous table.
Continuous Recording:
The pushbutton is pressed down and locked home by
turning to the right, see also table.
EVENT-MARKING:
This pushbutton operates the Event Marker stylus (Fig.
3.1) which provides a means of marking the outer rim of the recording paper
( between the left-hand edge and the perforation holes). When the pushbutton
is operated, the Event Marker stylus moves towards the , perforation holes .
SYNCHRONIZING GEAR LEVER X (on right hand side, Fig. 2.3).
Lever
X in outer position: To be used for recordings on preprinted frequency
calibrated paper. Both continuous and single chart recordings .are possible
(refer
table above). The paper speed is in this instance indicated by the small
figures
grouped round the knob marked PAPER SPEED.
Lever X in its inn er position: Only continuous recording can be carried out
(refer also table) .
The ten times greater speeds are indicated by the large
figures.
Pilot
Drive
Shaft I
( Preprinted
recording
paper).
Cover Locking
Screw
Drive Shaft IT
Ref , Voltage
Remote Cont rol
7 - poled
Two - Channel
Selector
3-poled 161SfiJ
Fig . 2.3. Front and side views illustrating location 01 the Ilarious mechanical
levers, drives and controls.
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