Read this Manual Before Installing
This manual provides information on the B73 and Series
75 Liquid Level Switches. It is important that all instruc-
tions are read carefully and followed in sequence.
Detailed instructions are included in the Installation sec-
tion of this manual.
Conventions Used in this Manual
Certain conventions are used in this manual to convey
specific types of information. General technical material,
support data, and safety information are presented in
narrative form. The following styles are used for notes,
cautions, and warnings.
Notes
Notes contain information that augments or clarifies
an operating step. Notes do not normally contain
actions. They follow the procedural steps to which
they refer.
Cautions
Cautions alert the technician to special conditions that
could injure personnel, damage equipment, or reduce
a component’s mechanical integrity. Cautions are also
used to alert the technician to unsafe practices or the
need for special protective equipment or specific
materials. In this manual, a caution indicates a
potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
Warnings
Warnings identify potentially dangerous situations or
serious hazards. In this manual, a warning indicates an
imminently hazardous situation which, if not avoided,
could result in serious injury or death.
WARNING!
Explosion hazard. Do not connect or
disconnect equipment unless power has been switched off
or the area is known to be non-hazardous.
Low Voltage Directive
For use in Installation Category II, Pollution Degree 2.
If equipment is used in a manner not specified by
manufacturer, protection provided by equipment may
be impaired.
Notice of Copyright and Limitations
Copyright © 2006 by Magnetrol International.
All rights reserved.
Magnetrol reserves the right to make changes to the
products described in this manual at any time without
notice. Magnetrol makes no warranty with respect to the
accuracy of the information in this manual.
Warranty
All Magnetrol/STI mechanical level and flow controls are
warranted free of defects in materials or workmanship for
five full years from the date of original factory shipment.
If returned within the warranty period; and, upon factory
inspection of the control, the cause of the claim is
determined to be covered under the warranty; then,
Magnetrol will repair or replace the control at no cost to
the purchaser (or owner) other than transportation.
Magnetrol/STI shall not be liable for misapplication,
labor claims, direct or consequential damage or expense
arising from the installation or use of equipment. There
are no other warranties expressed or implied, except
special written warranties covering some Magnetrol/STI
products.
Quality Assurance
The quality assurance system in place at Magnetrol/STI
guarantees the highest level of quality throughout the
company. Magnetrol/STI is committed to providing full
customer satisfaction both in quality products and
quality service.
Magnetrol’s quality assurance
system is registered to ISO 9001
affirming its commitment to
known international quality
standards providing the strong-
est assurance of product/service
quality available.