TESTO 475 - External Trigger; Fast Finder

8
Measurement
Fast Finder
A Fast Finder function is available so that a multiple
of a specific frequency (under 333 Hz) can quickly
go through.
Press the key <xn/÷n> to activate the Fast Finder.
The activation of the Fast Finder is signalled in the
bottom half of the display by ”No”.
The next highest multiple is generated by the
instrument by pressing the keys <higher>. This can
be reversed via the key <lower>.
External trigger and frequency input
Frequencies from external instruments (flashlight
transmitters, mechanical measuring heads etc.)
can be transmitted directly to the flashlight trans-
mitter via the measuring instrument.
The flashlight frequency is adjusted automatically
with the entry of the first external signals (prerequi-
site: 1 Hz < external frequency < 333 Hz). For fre-
quencies under approx. 1 Hz the frequency must
be manually adjusted as before. Frequencies
above 333 Hz are not accepted and are blocked.
”over” appears in the display.
The flashlight transmitter connected at the control
output flashes at a frequency corresponding to the
signals of the external instrument connected at the
trigger input (typical application: synchronisation of
motors, slip recognition.
•Fast Finder
• External trigger
1828
30.46
F
"Fast Finder" principle
1828
rpm
30.46
F
No
3656
rpm
60.93
F
No
(Trigger
input)
(Control output)