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Electrical Data
Input power and output are connected via a
Multi-conductor, PVC-jacketed 24" cable.
Color codes are as shown below:
+VAC/VDC
Red
-Power
Black
N.O. Contact
White
N.C. Contact
Brown
Common
Green
This product is suitable for Class I and Class II applications only, per the requirements of standard EN60730 and any additional specific
requirements for a particular application or medium being sensed. Class I compliance of metal bodied units requires a ground
connection between the metal body and the earthing system of the installation. Class I compliance of plastic bodied units in contact
with a conductive medium requires that the medium be effectively earthed so as to provide an earthed barrier between the unit and
accessible areas. For Class III compliance, a supply at safety extra-low voltage (SELV) must be provided. Please consult the Factory
for compliance information on specific part numbers.
Product must be maintained and installed in strict
accordance with the National Electrical Code and GEMS
product catalog and instruction bulletin. Failure to observe
this warning could result in serious injuries or damages.
Pressure and temperature limitations shown on individual
catalog pages and drawings for the specified flow
switches 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 flow switches.
Take care in the proper selection of materials of
construction; particularly wetted materials.
Life expectancy of switch contacts varies with
applications. Contact GEMS if life cycle testing is
required.
Telephone: 1-800-378-1600 | Email: info@gemssensors.com | www.GemsSensors.com
Important Points!
Gems Sensors & Controls | One Cowles Road | Plainville, CT 06062-1198
WARNING
When determining chemical compatibility of
materials of construction, the flow media and
application-associated environmental conditions
should be carefully considered.
Ambient temperature changes do affect switch set
points, since the specific gravity of a liquid can vary
with temperature.
Flow switches have been designed to resist shock and
vibration; however, shock and vibration should be
minimized.
Liquid media containing particulate and/or debris
should be filtered to ensure proper operation of
GEMS products.
Electrical entries and mounting points may require
liquid/vapor sealing if located in an enclosed tank.
Flow switches must not be field repaired.
Physical damaged sustained by the product may
render it unserviceable.
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