New Vibration Switches.
Recently introduced is a range of electronic and mechanical
vibration switches for protecting critical machinery
from costly failure, by initiating an alarm or shut down
when excessive vibration is detected.
The electronic switches require power to operate and utilise an input
signal from an on board or remote accelerometer, whereas the
mechanical switches do not require power and utilise the resistive
force and travel of a spring as a measure of vibration amplitude.
Of particular interest is the model 686A, which is a two wire solid-state
relay, electronic vibration switch that is microprocessor controlled, with
no moving parts or mechanical adjustments. This switch is supplied
factory set to a selected threshold value and delay time, or can
incorporate as an option a Magnetic Adjustable Vibration Threshold
(MAVT) to enable adjustment of the threshold of the switch through
a magnetically activated internal sensor, while it is installed on running
machinery. This switch installs using the same mounting techniques
as a conventional vibration sensor and connects with a conventional
two-pin connector or integral cable.
For more information, please contact :-
PCB Piezotronics Ltd.
7 Paynes Park, Hitchin, Herts. SG51EH UK
Tel: +44(0)1462 429710
Fax: +44(0)1462 429798