R
ead this Manual Before Installing
This  manual  provides  information  on  Series  3  Liquid
Level Switches. It is important that all instructions are read
carefully and followed in sequence. Detailed instructions
are included in the Installation section 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 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  box  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.
Safety Messages
Follow all standard industry procedures for servicing elec-
trical  equipment  when  working  with  or  around  high
voltage. Always shut off the power supply before touching
any components.
Low Voltage Directive
For use in Installation Category II, Pollution Degree 2. If
equipment  is  used  in  a  manner  not  specified  by  the
 manufacturer, protection provided by the equipment may
be impaired.
W
arranty
All Magnetrol mechanical level and flow controls are war-
ranted  free  of  defects  in  materials  or  workmanship  for
three  full  years  from  the  date  of  original  factory 
shipment.  Repair  parts  are  warranted  free  of  defects  in
materials and workmanship for one year from the date of
shipment. Materials, specifications, and contents are sub-
ject to change without prior written notice.
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  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 products.
Quality Assurance
The quality assurance system in place at Magnetrol guar-
antees  the  highest  level  of  quality  throughout
the company. Magnetrol is committed to  providing full
customer satisfaction both in quality products and quality
service.
The Magnetrol quality  assurance  system  is  registered to
ISO  9001  affirming  its  commitment  to  known
international  quality  standards  providing  the  strongest
assurance of product/service quality available.
Copyright © 2021 AMETEK Magnetrol USA, LLC.
All rights reserved.
Performance specifications are effective with date of issue
and  are  subject  to  change  without  notice.  Magnetrol
®
reserves  the  right  to  make  changes  to  the  product
described  in  this  manual  at  any  time  without  notice.
Magnetrol makes no warranty with respect to the accura-
cy of the information in this manual.