PASCO SF-9211 STROBOSCOPE - Manual (Page 7)

3
012-02119C Stroboscope
➤WARNING: High voltages are involved in the
normal functioning of this unit. Troubleshooting
should be performed only by trained personnel. Please
contact PASCO scientific if service is required.
This stroboscope should provide long and trouble free
service. It should be cleaned periodically, using a non-
abrasive cleaner to avoid scratching the plastic window.
Beyond this, no regular maintenance is required.
Should the power switch fail to light when the strobo-
scope is turned on , there may be a blown fuse (Over
time, the power switch may begin to flicker when it is
turned on. This does not affect the function of the strobo-
scope). To replace the fuse, turn off and unplug the
stroboscope. Remove the four screws that attach the left
side panel of the unit (facing the control panel). Remove
the side panel. The fuse is located near the bottom left
corner of the printed circuit board, facing the display side
of the unit. If the fuse is blown, replace it with a similar
250 mA fuse.
Maintenance
Size: 24x18x12 cm.
Power Requirements: 117 VAC, 60HZ
Flash Rate: 1-300 flashes per second: 60-18,000 RPM
Flash Energy (Joules): 1-16 Hz = 1.47
16-64 Hz = 0.18
64-300 Hz = 0.033
Current Pulse Width: 5
µ
s
Arc Length (electrode spacing): = 80mm
Bore Diameter (I.D. of flash tube): = 6.0mm
Specifications
Tube Life: 250 hours/270 million flashes
Sync Signals:
Output Signal: 5-7 Volt pulse
External Trigger Requirements: 3-50 Volt;
Triggers on falling edge of pulse
Equipment Included: Power cord, Instruction manual
➤NOTE: The stroboscope undergoes two changes
in flash intensity: one at approximately 16 Hz and
the second at approximately 64 Hz. The overall
light output, however, will remain constant.