Sor Single Point Ultrasonic Level Switch Manuel d'utilisateur télécharger pdf

Form 771 (08.13) ©SOR Inc.

1/20

The Ultrasonic Point Level Control indicates liquid presence/absence within a sensor cavity.

Two piezoelectric crystals face each other across the sensor cavity. One crystal transmits

an ultrasonic signal; the other crystal receives the signal.

When the sensor cavity is empty, the receiver detects a weak signal because air is a poor

conductor of ultrasonic waves. The yellow LED is lit, indicating 8 mA current output.

When process liquid fills the sensor cavity, the receiver detects a strong signal because

liquids are good conductors of ultrasonic waves. The red LED is lit, indicating 16 mA

current output.

The Ultrasonic Point Level Control constantly monitors sensor integrity and changes the

current output in the unlikely event of a sensor failure. The Failure Mode Switch located

inside the control housing can be field selected to either 5 mA or 19 mA to indicate

sensor failure.

Remote Self-Test is provided with non-intrinsically safe units only. Units equipped with

two terminal blocks feature the remote self-test. A dry contact may be used up to 50

feet/15 meters from the control to simulate a sensor failure.

Standard 316SS and Te on Notch-Type sensors, epoxy tip-sensitive, and 316SS viscous

sensors are available for use with the point level control. Extreme care must be taken when

installing units with Teflon

sensors. See installation instructions beginning on page 2.

Ultrasonic Two-Wire

Point Level Control

General Instructions

Registered Quality System to ISO 9001

Design and

specifications are

subject to change

without notice.

For latest revision,

go to sorinc.com

NOTE: If you suspect that a product is defective, contact the factory or the SOR

Representative

in your area for a return authorization number (RMA). This product should only be installed by

trained and competent personnel.

Table of Contents

Installation ....................................... 3

Remote Cable Connection .....................4

Remote Electrical Connection ................4

Electrical Connection ...........................5

Calibration and Function Test .................8

Sensor Replacement ...........................9

Circuit Board Replacement ....................9

CE Marked Units .............................. 10

Control Drawings ............................. 11

Troubleshooting ............................... 16

Dimensions ................................ 17-19

1 2 3 4 5 6 ... 19 20

Résumé du contenu

Page 1 - Point Level Control

Form 771 (08.13) ©SOR Inc. 1/20The Ultrasonic Point Level Control indicates liquid presence/absence within a sensor cavity. Two piezoelectric crystals

Page 2 - Installation

10/20Form 771 (08.13) ©SOR Inc. Model NumberAccessory DesignatorI.S. CI, FI or AI Expf FM or CSNon-Agency (no match)721 2-N-P9-G5003-009 5003-

Page 3

Form 771 (08.13) ©SOR Inc. 11/20Control Drawing

Page 4 - Remote Cable Connection

12/20Form 771 (08.13) ©SOR Inc. Control Drawing

Page 5 - Electrical Connection

Form 771 (08.13) ©SOR Inc. 13/20Control Drawing

Page 6

14/20Form 771 (08.13) ©SOR Inc. Control Drawing

Page 7 - Install bead as close as

Form 771 (08.13) ©SOR Inc. 15/20Control Drawing

Page 8 - Calibration and Function Test

16/20Form 771 (08.13) ©SOR Inc. TroubleshootingSymptom/ProblemPossible Cause Corrective ActionNo current in the loopNo LEDs lit.1. Power supply turned

Page 9 - Circuit Board Replacement

Form 771 (08.13) ©SOR Inc. 17/20DimensionsMetal SensorK2 HSGADD FOR2.0050.8K1 HSG210.8 *8.30A93.3 *3.6715.90.63116.74.5996.03.7895.33.7520.60.8122.20.

Page 10 - CE Marked Units

18/20Form 771 (08.13) ©SOR Inc. Te on SensorDimensions are for reference only.Contact the factory for certified drawings for a particular model numbe

Page 11 - Control Drawing

Form 771 (08.13) ©SOR Inc. 19/20Viscous SensorDimensions are for reference only.Contact the factory for certified drawings for a particular model numb

Page 12

2/20Form 771 (08.13) ©SOR Inc. InstallationNotch-Type and Epoxy Sensors (Series 371-N and 371-E)Ultrasonic Level Sensors can be mounted by inserting t

Page 13

20/20Form 771 (08.13) ©SOR Inc. 14685 West 105th Street, Lenexa, KS 66215  913-888-2630  800-676-6794 USA  Fax 913-888-0767Registered Quality

Page 14

Form 771 (08.13) ©SOR Inc. 3/20Open Sump or BasinDo not suspend the unit by rigid conduit installed in the electrical hub. When installing the unit ov

Page 15

4/20Form 771 (08.13) ©SOR Inc. Remote Electrical ConnectionRemote Cable ConnectionConduit must be installed between the sensor base and the electronic

Page 16 - Troubleshooting

Form 771 (08.13) ©SOR Inc. 5/20Discharge the SensorTemperature changes which occur during shipment may result in a small electrical charge inside the

Page 17 - Dimensions

6/20Form 771 (08.13) ©SOR Inc. Electrical Connection (Remote Self-Test)Ensure that wiring comforms to all applicable local and national electrical cod

Page 18 - Te on Sensor

Form 771 (08.13) ©SOR Inc. 7/20Electrical Connection (Intrinsically Safe)Intrinsically Safe Models (does not apply to viscous or epoxy controls and s

Page 19 - Viscous Sensor

8/20Form 771 (08.13) ©SOR Inc. Calibration and Function TestNo calibration is needed. Units are calibrated at the factory. No user adjustments are req

Form 771 (08.13) ©SOR Inc. 9/20Current Output ChartYellow LED (Dry)Red LED (Wet)Current Meter (+ 1mA)Sensor StatusFailure Mode8 mA Dry__16 mA Wet_