Ultrasomic level switch Echotel Model 910

Ultrasonic Level

Switch

Installation and Operating Manual

Echotel ?Model 910

Read this Manual Before Installing

This manual provides information on the Echotel Model 910Ultrasonic Liquid Level Switches.It is important that all instructions are read carefully and followed in sequence.Detailed instructions are included in the Installation section of this manual.

Conventions Used in this Manual

Certain conventions are used in this manual to convey specific types of information.General technical material, support data,and safety information are presented in narrative form.The following styles are used for notes, cautions,and warnings.

NOTES

Notes contain information that augments or clarifies an operating step.Notes do not normally contain actions.They follow the procedural steps to which they refer.

Cautions

Cautions alert the technician to special conditions that could injure personnel,damage equipment,or reduce a component’s mechanical integrity.Cautions are also used to alert the technician to unsafe practices or the need for special protective equipment or specific mate-rials.In this manual,a caution box indicates a poten-tially hazardous situation which,if not avoided,may result in minor or moderate injury.

WARNINGS

Warnings identify potentially dangerous situations or serious hazards.In this manual,a warning indicates an imminently hazardous situation which,if not avoided, could result in serious injury or death.

Safety Messages

The Echotel Model910is designed for use in Category II, Pollution Degree2installations.Follow all standard industry procedures for servicing electrical and computer equipment when working with or around high voltage. Always shut off the power supply before touching any components.Although high voltage is not present in this system,it may be present in other systems.

Electrical components are sensitive to electrostatic discharge.To prevent equipment damage,observe safety procedures when working with electrostatic sensitive components.

This device complies with Part15of the FCC rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and(2)This device must accept any interference received,including interference that may cause unde-sired operation.WARNING!Explosion hazard.Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.

Low Voltage Directive

For use in Category II installations.If equipment is used in a manner not specified by manufacturer,protection provided by equipment may be impaired.

Notice of T rademark,Copyright,and Limitations Magnetrol&Magnetrol logotype and Echotel are regis-tered trademarks of Magnetrol International. Copyright?2011Magnetrol International,Incorporated. All rights reserved.

Performance specifications are effective with date of issue and are subject to change without notice.Magnetrol reserves the right to make changes to the product described in this manual at any time without notice. Magnetrol makes no warranty with respect to the accura-cy of the information in this manual.

Warranty

All Magnetrol Model910Level Switches are warranted free of defects in materials or workmanship for two full years from the date of original factory shipment.

If returned within the warranty period;and,upon factory inspection of the control,the cause of the claim is determined to be covered under the warranty;then, Magnetrol will repair or replace the control at no cost to the purchaser(or owner)other than transportation.

Magnetrol shall not be liable for misapplication,labor claims,direct or consequential damage or expense arising from the installation or use of equipment. There are no other warranties expressed or implied, except special written warranties covering some Magnetrol products.

Quality Assurance

The quality assurance system in place at Magnetrol guar-antees the highest level of quality throughout the compa-ny.Magnetrol is committed to providing full customer satisfaction both in quality products and quality service.

The Magnetrol quality assurance system

is registered to ISO9001affirming its commitment to known international

quality standards providing the strongest

assurance of product/service quality

available.

51-604Echotel Model910

51-604Echotel Model 910Ultrasonic

v e stal

Ultrasonic si g nal trans m ission

across transducer g a p

Figure 1

1.0Introduction

Echotel Model 910Level Switches utilize ultrasonic contact technology for measuring level in clean liquid applications.

1.1Principle of Operation

The Model 910Level Switch uses ultrasonic energy to detect the presence or absence of liquid in a transducer gap.The basic principle behind ultrasonic contact technology is that high-frequency sound waves are easily transmitted across a transducer gap in the presence of a liquid medium,but are severely attenuated when the gap is dry.The Model 910uses an ultrasonic frequency of 3MHz to perform this liquid level measurement in a wide variety of process media and application conditions.

The transducer uses a pair of piezoelectric crystals that are encapsulated in epoxy at the tip of the 316stainless steel transducer.The crystals are made of a ceramic material,that vibrates at a given frequency when subjected to an applied voltage.The transmit crystal converts an electrical signal from the Model 910electronics into an ultrasonic signal.When liquid is present in the gap,the receive crystal is able to sense the ultrasonic signal from the

transmit crystal and convert it back to an electrical signal.This signal is sent to the electronics to indicate the pres-ence of liquid in the transducer gap.When there is no liquid present,the ultrasonic signal is attenuated,and is not detected by the receive crystal.

2.0

Installation

2.1

Unpacking

Unpack the instrument carefully.Inspect all units for damage.Report any concealed damage to carrier within 24hours.Check the contents of the packing slip and purchase order.Check and record the serial number for future reference when ordering parts.

Model #_____________________________________Serial #_____________________________________

3

4 2.2

Electrostatic Discharge (ESD)Handling Procedure

Magnetrol electronic instruments are manufactured to the highest quality standards.These instruments use electronic components that may be damaged by static electricity present in most work environments.

The following steps are recommended to reduce the risk of component failure due to electrostatic discharge.

?

Ship and store circuit boards in anti-static bags.If an anti-static bag is not available,wrap the board in aluminum foil.Do not place boards on foam packing materials.

?Use a grounding wrist strap when installing and removing circuit boards.A grounded workstation is recommended.?Handle circuit boards only by the edges.Do not touch components or connector pins.

?

Make sure that all electrical connections are completely made and none are partial or floating.Ground all equip-ment to a good,earth ground.

2.3

Preliminary Operational Check

After unpacking and before installation,perform the following operational check on the unit in a non-hazardous area:

1.

Apply proper operating voltage to terminals L1and L2/N.Power supply ground should be connected to the green ground screw in housing base.

2.Fill a suitable container with liquid.

3.Place transducer gap in the liquid.The relay output should actuate.

4.

Remove transducer from the liquid.The relay output should de-actuate.In case of malfunction,consult Section 3.1,Troubleshooting on page 8.

Caution:This unit contains CMOS electronics which may become

damaged by static electricity.Do not touch any semicon-ductor devices unless you are properly

grounded.

51-604Echotel Model 910

51-604Echotel Model 910

5

"

v er t ig hte n by r ning h ousing

s e w re n c h here

d ui t

e c t ion

34Figure 3Vertical Mounting

Model 910level switches are shipped as integral units with the electronics assembled to the transducer.They may be mounted in a variety of positions as shown in Figures 2through 5.

Proper orientation of the transducer gap will provide maximum performance in difficult applications.When the switch is mounted horizontally,the transducer gap must be turned vertical to allow proper drainage of the liquid media.See Figures 2and 4.

Screw transducer into the opening using pipe compound or thread tape.If flanged,bolt unit to mating flange with proper gasket.

Caution:Never tighten unit on the tank connection by turning the

https://www.sodocs.net/doc/1c9083860.html,e a wrench on the transducer mounting nut https://www.sodocs.net/doc/1c9083860.html,e thread tape or suitable pipe compound on the threads.Do not overtighten.

When installed in a nozzle or pipe,the transducer gap must extend into the tank at least one inch beyond the inside tank wall.Refer to Figure 5.

Install so that wrench flats are vertical

G a p mu st b e t u rne d vertical to allow m to fall thro Gap must

extend 1"(25mm)beyond end of nozzle

Figure 4Horizontal Mounting

Figure 5Nozzle Mounting

Figure 2

Typical Mounting Orientations

6 2.5Wiring

2.5.1Power

Power connections are made at the two-position terminal block labeled TB1within the electronics https://www.sodocs.net/doc/1c9083860.html,e of 14–22AWG wire is recommended.

NOTE:Observe all applicable electrical codes and proper wiring

procedures.

1.Make sure the power is turned off.

2.Unscrew and remove the housing cover.

3.Prevent moisture seepage into housing by installing an approved seal-drain fitting in the conduit run leading to the unit.

4.Route wires into housing.

5.Connect ground wire to green ground screw located in the base of the housing.DO NOT proceed until ground connection is made.

6.After grounding is complete,connect the power leads to proper terminals as follows:

VAC Units VDC Units L1,L2/N +,–

In hazardous areas,do not power the unit until the conduit is sealed and the enclosure cover is screwed down securely.

7.Dress wiring to ensure no interference or contact with cover or circuit board components.

51-604Echotel Model 910

51-604Echotel Model9107

83.0

Reference Information

3.1

Troubleshooting

Caution:In hazardous areas,do not remove housing cover until power is disconnected and atmosphere is deter-mined to be safe.

3.1.1No signal with level change

a.Verify power and control circuit wiring.

b.Make sure liquid is filling the transducer gap.

c.Check for dense foam on surface or dried product in the gap.Unit will not function properly if either condition exists.

d.Check transducer phone plugs for proper insertion in J1and J2.

e.If control circuit does not actuate,consult factory.

3.1.2Calibration

Model 910switches do not require field calibration.The set point is not adjustable.

3.1.3Switch chatter

a.Check voltage to make sure it is within tolerances shown in Section 3.3.2.

b.Check for turbulence.Relocate control or isolate from turbulence.

c.Check for excessive aeration.

d.Consult factory.

3.1.4Control output will not de-actuate

a.Check transducer for plugged gap.

b.Check for dense foam or liquid in gap.

c.If control circuit does not de-actuate,consult factory.

Class II ,Div.1;Groups E,F ,&G Class III ,NEMA Type 4X,T6

910-XXXX-XXX Non-Incendive

Class I ,Div.2;Groups A,B,C,&D Class II ,Div.2;Groups F &G Class III ,NEMA Type 4X,T5CSA 910-XXXX-XXX Explosion Proof

Class I ,Div.1;Groups C &D Class II ,Div.1;Group E,F ,&G Class III ,Type 4X,T6

910-XXXX-XXX Non-Incendive

Class I ,Div.2;Groups A,B,C,&D Class II ,Div.2;Groups E,F ,&G Class III ,Type 4X,T5

ATEX

910-5XXX-XXX II 1/2G EEx d II C T6/EEx e II T6

910-PXXX-XXX

51-604Echotel Model 910

These units have been tested to EN 50081-2 and EN 50082-2 and are in compliance with the EMC Directive 89/336/EEC.

Note:Consult factory for Brazilian INMETRO BR-Ex d IIC T6IP66approval.

51-604Echotel Model 9109

inches (mm)

tank

316stainless steel housing (Single 3?4"NPT conduit)Aluminum sand

cast housing (Dual 3?4"NPT conduits)

Aluminum sand cast housing

(Dual 3?4"NPT conduit w/1"BSP process connection) 1"(Code 001)minimum with NPT threaded

process connections.

2"(Code 002)minimum with hygienic or ANSI flanged process connections.

25(Code 003)mm minimum with NPT threaded process connections.

50(Code 005)mm minimum with 1"BSP ,and hygienic or ANSI flanged process connections.

Aluminum sand cast housing

(Dual 3?4"NPT conduit with hygienic flange)

10

Power Supply:

120VAC (+10%/-15%),50/60Hz 240VAC (+10%/-15%),50/60Hz 24VDC (±10%)

Power Consumption: 2.5VA nominal

Relay Output:

Gold flash DPDT relay:10amps @120VAC,240VAC,24VDC Hermetically sealed DPDT relay:5amps @120VAC,24VDC,and

3amps @240VAC

Repeatability:

0.078"(2mm)

Fail-safe Configuration:Field selectable high or low Calibration:

None required

Ambient Temperature:Electronics:-40°to +158°F (-40°to +70°C)Process Temperature:Transducer:-40°to +250°F (-40°to +121°C)Operating/Non-Operating Pressure:800/1500psig (55/103bar)

Shock ANSI/ISA-S71.03Class SA1Vibration

ANSI/ISA-S71.03Class VC2

Gold flash DPDT relay is rated at 8amps when used with housing codes 5or P

3.4Replacement Parts

No.

Description

Part Number 120VAC w/10amp relay Z30-2043-003240VAC w/10amp relay

Z30-2043-0041

PC Board

24VDC w/10amp relay Z30-2043-002120VAC w/5amp HS relay Z30-2043-011240VAC w/3amp HS relay Z30-2043-01224VDC w/5amp HS relay Z30-2043-010Aluminum w/FM and CSA

004-9182-0022

Housing Aluminum w/all 3approvals 004-9182-008Base

316SS w/FM and CSA 004-9140-001316SS w/CENELEC 004-9140-001Aluminum w/FM and CSA

004-9105-0013

Housing Aluminum w/all 3approvals 004-9105-005Cover 316SS w/FM and CSA 004-9142-001316SS w/CENELEC

004-9142-0014O-Ring 012-2101-3455

Transducer

Consult factory

WARNING!Explosion hazard —Substitution of com-ponents may impair suitability for Class 1,Division 2rating.WARNING!Explosion hazard —Do not disconnect

equipment unless power has been switched off,or the area is known to be non-hazardous.

51-604Echotel Model 910

3.5Model Numbers

3.5.1Model910

910

1"(code001)

2.5cm(code003)minimum with NPT process connections,5cm(code005)minimum with1"BSP,or hygienic or ANSI flanged

process connections.

Consult factory for longer lengths.

11 51-604Echotel Model910

Service Policy

Owners of Magnetrol may request the return of a control or any part of a control for complete rebuilding or replace-ment.They will be rebuilt or replaced promptly.Controls returned under our service policy must be returned by Prepaid transportation.Magnetrol will repair or replace the control at no cost to the purchaser(or owner)other than transportation if:

1.Returned within the warranty period;and

2.The factory inspection finds the cause of the claim

to be covered under the warranty.

If the trouble is the result of conditions beyond our con-trol;or,is NOT covered by the warranty,there will be charges for labor and the parts required to rebuild or replace the equipment.

In some cases it may be expedient to ship replacement parts;or,in extreme cases a complete new control,to replace the original equipment before it is returned.If this is desired,notify the factory of both the model and serial numbers of the control to be replaced.In such cases,credit for the materials returned will be determined on the basis of the applicability of our warranty.

No claims for misapplication,labor,direct or consequen-tial damage will be allowed.Return Material Procedure

So that we may efficiently process any materials that are returned,it is essential that a“Return Material Authorization”(RMA)number be obtained from the factory,prior to the material’s return.This is available through a Magnetrol local representative or by contacting the factory.Please supply the following information:

https://www.sodocs.net/doc/1c9083860.html,pany Name

2.Description of Material

3.Serial Number

4.Reason for Return

5.Application

Any unit that was used in a process must be properly cleaned in accordance with OSHA standards,before it is returned to the factory.

A Material Safety Data Sheet(MSDS)must accompany material that was used in any media.

All shipments returned to the factory must be by prepaid transportation.

All replacements will be shipped F.O.B.factory. NOTE:See Electrostatic Discharge Handling Procedure on page4.

ASSURED QUALITY&SERVICE COST LESS