5-2
5 Operating the Vibrometer
5.3 Signal Level Display
The signal level display helps you to optimize the focus of the laser beam.
The signal level is shown as a 20-part bar on the display of the controller
(refer to
).
OFV-303/-353
The signal level is also shown on the back of the sensor head as a 10-part bar
display.
OFV-511/-512
The signal level is also shown on the front of the sensor head as a 10-part bar
display.
5.4 Focusing the Laser Beam
OFV-303
There are different ways to focus the laser beam of the sensor head
OFV-303:
•
manually with the focusing ring
•
remotely via the display of the controller
•
remotely with a PC via the interfaces RS-232 or IEEE-488 / GPIB
•
remotely with the hand terminal OFV-310 (optional)
You can switch between manual focusing and remote focusing with the knob
AUTO / MAN on the front of the sensor head.
Manual focusing
To switch to manual focusing, you proceed as follows:
1. Pull the knob AUTO / MAN out until it clicks into place.
2. Then turn the focusing ring until the adjustment mechanism clicks into
place.
3. You can now focus the laser beam manually by turning the focusing ring.
4. When you are looking onto the front panel of the sensor head
Warning !
Never look directly into the laser beam with the naked eye or with the aid of mirrors or
optical instruments !
•
to focus on infinity:
turn clockwise (to the right)
•
to focus close-up:
turn anti-clockwise (to the left)
Summary of Contents for OFV-3001
Page 28: ...3 16 3 First Steps...
Page 54: ...5 12 5 Operating the Vibrometer...
Page 94: ...D 10 D Functional Description of the Controller...
