BRUEL & KJAER 4915 Instruction Manual

Instruction Manual
Digital Stroboscope Type 4913
Fibre-Optic Source Type 4915
1-033 0689-1 A
BE-0689
'~~
t . - ~ '
, _ : ~ · : • ~ = ~
i c -i~": i - ·-.
i
~
"
Type 4913 Is a combined Stroboscope/-
Tachometer for visual Investigation and
accurate measurement of rapid, repetitive
motion, mechanical resonances, vibration
etc. It Includes a hand-held Lamp Unit
US 0008 and may be triggered from an Int.
generator, power llne or ext. tachometer sig-
nal to provide a stationary or slow moving
Image of objects with motion frequency from
5 Hz to 1 O kHz (0,3 to 600 k r /min). ·separate
modes with adjustable time and phase delay
permit observation at any required point in
the motion cycle. In addition a built-In 4-dlglt
display facllltates direct reading of motion
frequency or speed, time or phase delay.
As extra Type 4913 can be coupled with the
Fibre-Optic Source Type 4915. This has a
reslllent 1,8 m long fibre-optic cable AE 6000
and outputs a convenient point source of
lllumlnatlon that Is Ideal for stroboscopic
examination of small components, Intricate
mechanisms and microscope specimens.
For Internal Inspection of engines and other
machinery, an Endoscope Probe can be
connected.
+
Bri.iel & Kjcer