Kenco-engineering KUSO Switch Manuel d'utilisateur télécharger 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 KUSO ULTRASONIC SWITCH

INSTALLATION / OPERATION INSTRUCTIONS

GENERAL DESCRIPTION

The KUSO Series Ultrasonic Level Switches are ideal, low cost solutions for many liquid level control applications. They

operate in a wide variety of services.

PRINCIPLE OF OPERATION

Ultrasonic switches use piezoelectric crystals to transform electrical energy into mechanical motion (sound). The

Transmit Crystal sends a pulse of sound through the space between the crystals, to the Receive Crystal. If the space is

filled with air, gas, or vacuum, the Receive Crystal does not detect the sound pulse. However, if the space is filled with

liquid, any liquid, the pulse is detected by the Receive Crystal, and the switch output changes.

MODEL DESCRIPTION

KUSO - -

Style

Cable Length

*(In Feet)

*Standard is 1FT.

INSTALLATION

Unpack the switch carefully. Inspect all units for damage. Report any damage to carrier immediately. Check the

contents against the packing slip and purchase order.

Kenco’s Ultrasonic Switches are manufactured to the highest quality standards. These switches use electronic

components that can be damaged by static electricity. Make sure that you are properly grounded before starting

installation. Insure that all electrical connections are properly made, and that there are no “floating” connections.

Operational Check

Before installing the switch a simple operational check should be performed, as follows:

1. Fill a container with water

2. Connect the wiring (see the section on “Wiring”)

3. Apply power

4. Place the sensor gap into the water.

a. Relay Version -- The relay will energize (the contacts between (NC) and (C) should open).

b. 2-wire Version -- The current in the Red wire will be 16.0mA ±1.0mA.

5. Remove the sensor from the liquid.

a. Relay Version – The relay will de-energize (the contacts between (NC) and (C) should close)

b. 2-wire Version – The current in the Red wire will be 4.0mA ± 1.0mA.

6. Disconnect the wiring

Mounting

For threaded process connections, screw sensor into the opening using a wrench on the sensor mounting nut flats. Use

thread tape or suitable pipe compound on the threads. If flanged, bolt the sensor to the mating flange with the proper

gasket.

The sensor gap must protrude into the vessel / pipe being measured. The sensor will not function properly if the detection

tip is in a nozzle.

Style

Description Code

1A SPDT 316LSS 0

1 2

KENCO ENGINEERING COMPANY 1

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Page 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.

Page 2

Wiring It is recommended that conduit be installed onto the ¾” NPT connection on the back of the sensor. A seal drain fitting should be used to preve

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Kenco-engineering KUSO Switch Manuel d'utilisateur

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