Metrix 5550 Installation Manual

Doc# M8905 • REV R (May 2016) Page 2 of 8
SUPPLEMENTARY INFORMATION
Refer to product datasheet 1004461, and operaon and maintenance manual 1231558 avail-
able at www.metrixvibraon.com.
MOUNTING
Observe the switch nameplate to ensure that it has the correct hazardous approval and
environmental rangs for the intended area. Refer to Metrix datasheet 1004461 for a list of
all available hazardous area approvals, environmental rangs, and other ordering opons.
See also the Hazardous Area Approvals secon of this manual for hazardous area approvals
informaon.
The switch’s sensive axis is in line with the reset plunger stem. Mount the switch solidly
to the machine’s frame such that this axis is aligned with the direcon of expected vibratory
and/or impact moon. If the machine vibrates along mulple axes (and most machines do),
mount the switch to align with the direcon of highest vibraon. It is typical for machines
to vibrate more in the horizontal direcon than in the vercal direcon, as the foundaon
normally constrains up-and-down moon more than side-to-side moon.
NOTE: The 5550 Mechanical Vibraon Switch is not intended
for use on high-speed turbomachinery or on machines were
changes in seismic acceleraon smaller than 1G must be
reliably detected. Instead, Metrix oers other electronic vibraon
sensing soluons that are beer suited for such applicaons.
NOTE: Do not aempt to measure vibraon or impact perpendicular
to the switch’s sensive axis. The trip plate is free to move along
this axis only and will not respond to moon in other direcons.
of the relay. This relay is available for external wiring connecons where on/o changes in
electrical connuity can be used to trip the machine and/or annunciate excessive vibraon.
Once the switch has assumed its tripped posion, it must be reset manually by means of the
external reset plunger, or by means of an oponal remote electrical reset. The remote reset
capability can also be used as a startup delay to hold the switch in an untripped state for as
long as coil excitaon is supplied – up to 30 seconds (the maximum duraon is governed by
a non-adjustable, factory-installed thermistor circuit). The startup delay feature is useful
during machinery startup when vibraon in excess of the normal trip seng may be tempo-
rarily incurred.

Metrix 5550 Specifications

General

Brand	Metrix
Model	5550
Category	Switch
Language	English