Kenco-engineering KEFS Manual de usuario descargar pdf

KENCO ENGINEERING COMPANY

P.O. BOX 470426 TULSA, OK 74147-0426 ● PHONE: (918) 663-4406 FAX: (918) 663-4406

www.kenco-eng.com e-mail: [email protected]

MODEL KEFS LIQUID LEVEL FLOAT SWITCH

INSTALLATION / OPERATION INSTRUCTIONS

PRINCIPLE OF OPERATION

The Model KEFS uses a float to determine the presence or absence of liquid at the process connection. The float arm assembly

consists of a float at one end and a magnet at the other. As the level rises, the float rises, and the magnet falls. The magnet

actuates a second magnet on the other side of the pressure boundary. This second magnet causes the switch to change state.

The pressure boundary contains no seals; it is a solid stainless steel barrier that passes a magnetic field, but no liquids. It is

impossible for the process liquid to enter the switch enclosure through this barrier.

The electrical contacts consist of a microswitch that can be either a Single-pole, Double-throw (SPDT) or Double-pole, Double-throw

(DPDT) Configuration. The SPDT Switch is available with either a 5 Amp or 8 Amp current load. The DPDT is available with a 5

Amp/30Vdc current load (See Switch Types and Ratings in the Product Specifications for more details).

MODEL DESCRIPTION

KEFS - - - -

Process Connection

Switch Rating

Temperature Rating

Wetted Parts

* High

temperature option only available with 5A SPDT switch

(58639 Rev B)

Temperature Rating Wetted Parts

Description Code Description Code

Standard

blank

303 SS (std.)

blank

High* 400 316 SS S6

Process Connection Switch Rating

Description Code Description Code

1½” NPT N/A 5A SPDT SPDT5

2” NPT (std.) 2 4A DPDT DPDT4

8A SPDT SPDT8

1 2 3 4

KENCO ENGINEERING COMPANY 1

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Pagina 1 - KENCO ENGINEERING COMPANY

KENCO ENGINEERING COMPANY P.O. BOX 470426 TULSA, OK 74147-0426 ● PHONE: (918) 663-4406 FAX: (918) 663-4406 www.kenco-eng.com e-mail: info@kenco-eng.

Pagina 2

SWITCH DIMENSIONS INSTALLATION Unpack the switch carefully. Inspect the unit(s) for damage. Report any damage to carrier immediately. Check the

Pagina 3

WIRING TERMINALS CM = Common; NC = Normally Closed; NO=Normally Open 1 = Used in both SPDT and DPDT Switches; 2 = Used in DPDT Switches Only 1.

Pagina 4

8. Carefully reinstall the Switch Housing Cover; BE CAREFUL not to pinch the wires PRODUCT SPECIFICATIONS Description Specification Spec

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Kenco-engineering KEFS Manual de usuario

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