Master Catalog — Gems Sensors & Controls - xii

Designers...Welcome To The Gems Catalog
INTRODUCTION

As you make use of this Engineer's Resource book, you'll see we've gone to great lengths to provide you
with the essential information required to make critical decisions. Of course, final product selection can be
optimized through consultation with your local Gems Representative or Sales Partner, or directly with our
GEMS applications engineers.
Our product design staff is always interested in new applications for GEMS sensors, so remember, if you
can't find a product that looks like a perfect fit, give us a call. Gems can develop prototypes designed specifically for your application.
Because we want you to succeed in your application of Gems sensor components, we encourage you to
read the following reminders and keep them in mind as you review product selection.

Important Points To Remember:
* At Gems, prototypes are our speciality. We strongly recommend prototyping for any application where
doubt exists concerning the product or equipment specification.
* Gems products must be maintained and installed in strict accordance with the National Electrical Code
and the applicable Gems Product Instruction Bulletin that covers installation, operation and proper
maintenance. Failure to observe this information may result in serious injury or damages.
* For hazardous area applications involving such things as, but not limited to, ignitable mixtures,
combustible dust and flammable materials, use an appropriate explosion-proof enclosure or intrinsically
safe interface device.
* Please adhere to the pressure and temperature limitations shown throughout this catalog. These
limitations must not be exceeded. These pressures and temperatures take into consideration possible
system surge pressures/temperatures and their frequencies.
* Selection of materials for compatibility with the media is critical to the life and operation of Gems
products. Take care in the proper selection of materials of construction, testing is required.
* NSF-approved sensors are made of materials approved for potable water applications according to
Standard 61.
* Stainless steel is generally regarded as safe by NSF and FDA.
* Life expectancy of switch contacts varies with application. Contact Gems if life cycle testing is required.
* Ambient temperature changes do affect switch set points, since the gravity of a liquid can vary with
temperature.
* Our sensors have been designed to resist shock and vibration. However, shock and vibration should be
minimized.
* Filter liquid media containing particulate and/or debris to ensure the proper operation of our products.
* Electrical entries and mounting points in an enclosed tank may require liquid/vapor sealing.
* Our sensors must not be field-repaired.
* Physical damage sustained by product may render it unserviceable.
* Approvals listed in this catalog are for standard products only.

Common Icons in This Catalog
In-Stock Products
°F

Integrated Temperature Sensor Option Available
Explosion-Proof Junction Box Option Available
Lexan® Slosh Shield Option Available

GEMS Application Information: 800-378-1600

XII

Visit www.GemsSensors.com for most current information.

Welcome / p1of1 / 3-APR-14

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Master Catalog — Gems Sensors & Controls

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