Siemens ST-H User manual

Operation Manual December 2008
TRANSDUCER
st-h

Class I, Div 1,
Gr.A,B,C,D;T3C
Class II, Div 1, Gr. E, F, G
Amb. Temp.: - 40°C to 73°C
PER DWG No.:
1-9470004Z-DX-A
R
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
ST-H ULTRASONIC TRANSDUCER
,
Serial No. GYZ / S1034567
Amb. Temp.: - 20°C to 60°C
Max. Input Power: 11.5W Max. Input Voltage: 380V rms
0518
II 2G
EEx m II T5
BAS 99ATEX2298X
Warning: Electro-Static Hazard,
Do Not Rub Or Clean On Site
N117
BR-Ex m II T5
MC,AEX-7247-X
Made in Canada
Siemens Milltronics Process Instruments Inc., Peterborough
ST-H ULTRASONIC TRANSDUCER
,
Serial No. GYZ / S1034567
Amb. Temp.: - 20°C to 60°C
Max. Input Power: 11.5W Max. Input Voltage: 380V rms
0518
II 2G
EEx m II T5
BAS 99ATEX2298X
Warning: Electro-Static Hazard,
Do Not Rub Or Clean On Site
N117
BR-Ex m II T5
MC,AEX-7247-X

7ML19985QK82 ST-H Transducer – OPERATION MANUAL Page EN-1
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ST-H Operation Manual
This manual outlines the essential features and functions of the ST-H Series transducers. The
Transducer Applications Manual is available for free download on our website:
www.siemens.com/processautomation. A printed version can be purchased from your local
Siemens Milltronics representative.
Questions about the contents of this manual can be directed to:
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: [email protected]om
MILLTRONICS is a registered trademark of Siemens Milltronics Process Instruments Inc.
Safety Guidelines
Warning notices must be observed to ensure personal safety as well as that of others, and to
protect the product and the connected equipment. These warning notices are accompanied by
a clarification of the level of caution to be observed.
Copyright Siemens Milltronics Process
Instruments Inc. 2004.
All Rights Reserved
Disclaimer of Liability
We encourage users to purchase
authorized bound manuals, or to view
electronic versions as designed and
authored by Siemens Milltronics Process
Instruments Inc. Siemens Milltronics
Process Instruments Inc. will not be
responsible for the contents of partial or
whole reproductions of either bound or
electronic versions.
While we have verified the contents of this manual
for agreement with the instrumentation described,
variations remain possible. Thus we cannot
guarantee full agreement. The contents of this
manual are regularly reviewed and corrections are
included in subsequent editions. We welcome all
suggestions for improvement.
Technical data subject to change.
WARNING: relates to a caution symbol on the product, and means that failure to
observe the necessary precautions can result in death, serious injury, and/or
considerable material damage.
WARNING: means that failure to observe the necessary precautions can result in
death, serious injury, and/or considerable material damage.
CAUTION: means that failure to observe the necessary precautions can result in
considerable material damage.
Note: means important information about the product or that part of the operating manual.

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Unit Repair and Excluded Liability
• The user is responsible for all changes and repairs made to the device by the user or
by the user’s agent.
• All new components are to be provided by Siemens Milltronics Process Instruments
Inc.
• Restrict repair to faulty components only.
• Do not reuse faulty components.

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Introduction
The ST-H transducer operates with Siemens Milltronics
ultrasonic level monitoring products.
The transducer converts the electrical energy of the transmit
pulse from the transceiver into acoustical energy. It then
converts the acoustical energy of the echo back into
electrical energy for the controller.
The transducer face emits acoustical energy that radiates
outward, decreasing in amplitude at a rate inversely
proportional to the square of the distance. Maximum power
radiates perpendicularly from the transducer face on the
axis of transmission. Where power is reduced by half (– 3
dB), a conical boundary centered around the axis of
transmission defines the sound beam, the diameter of which
is the beam angle.
The ST-H transducers have an integrated temperature sensor that reports the air temperature
at the transducer to the controller.
General Guidelines
WARNING: Materials of construction are chosen based on their chemical
compatibility (or inertness) for general purposes. For exposure to specific
environments, check with chemical compatibility charts before installing.
Note: This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based communications.
transducer
transducer face
–3db
boundary
axis of
transmission,
perpendicular to
transducer face

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Instructions specific to hazardous area installations
(Reference European ATEX Directive 94/9/EC,
Annex II, 1/0/6)
The following instructions apply to equipment covered by certificate number BAS
99ATEX2298X.
1. The equipment may be used with flammable gases and vapors with the Apparatus Group
II and with Temperature class T5.
2. The equipment is certified for use in an ambient temperature range of -20 °C to +60 °C.
3. The equipment has not been assessed as a safety related device as referred to by EC
Directive 94/9/EC Annex II, clause 1.5.
4. The certificate has a ’X’ suffix, which indicates that special conditions of installation and
use apply. Those installing or inspecting this equipment must have access to the contents
of the certificate.
5. The transducer has no internal fuse or any other components which will guarantee its
suitability for connection to a prospective short circuit current of 4000A. The transducer
must be supplied from apparatus suitable for connection to a supply having a prospective
short circuit not exceeding 4000A. This condition is met by Siemens Milltronics
transceivers.
6. Installation and inspection of this equipment shall be carried out by suitably trained
personnel in accordance to the applicable code of practice (EN 60079-14 and EN 60079-17
within Europe).
7. Repair of this equipment shall be carried out by suitably trained personnel in accordance
with the applicable code of practice (e.g. EN60079-19 within Europe).
8. Components to be incorporated into or used as replacements in the equipment shall be
fitted by suitably trained personnel in accordance with the manufacturer’s
documentation.
9. The certification of this equipment relies upon the following materials used in its
construction:
• Norton Performance Plastics Chemgrip bonding compound
• ETFE housing material
• PVDF housing material
• Master Bond Polysulphide EP21LPT or Dow-Corning 3-4207 encapsulant
• Cotronics Durapot 861-F3 encapsulant
• Cotronics Durapot 864 encapsulant
If the equipment is likely to come into contact with aggressive substances, such as solvents
that may affect polymeric materials, it is the responsibility of the user to take suitable
precautions to prevent the equipment from being adversely affected. It is important to perform
routine inspections and establish from the materials data sheet that the transducer is resistant
to chemicals used in the application.

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Safety Precautions
The ST-H transducer body is a two part design moulded in PVDF or ETFE with internal parts
potted in epoxy. The joint between the upper and lower sections is not a hermetic seal. The
structural integrity of the transducer will be compromised if the joint is exposed to an
environment that attacks epoxy. As a result, the top section will separate from the main body
of the transducer.
For environments that are compatible with PVDF or ETFE but may degrade epoxy, the
transducer must be mounted through a flange or stub mount using the 2" thread on the lower
section of the transducer. The joint between upper and lower sections of the transducer must
be isolated from the corrosive environment.
If the top section separates from the main body of the transducer, live circuitry
will be exposed to the hazardous environment, increasing the risk of an
explosion if volatile or explosive dusts or gases are in sufficient concentration.
A malfunction of the level system may also occur, which may affect the
process using the ultrasonic ranging system.
NOTE:
Suitable for
use in a
corrosive
environment.
WARNING:
NOT suitable
for use in a
corrosive
environment.

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Specifications
* Approximate shipping weight of transducer with standard cable length.
** For chemical application check compatibility of ETFE or PVDF and epoxy, or mount joint external to process.
*** Performance available upon request.
ST-H Transducer
Measurement Range 0.3 - 10 m (1 - 33 ft)
Pressure vent to atmosphere
Supply Source transducer shall only be supplied by a Siemens Milltronics
certified controller
Frequency 44 kHz
Beam Angle 12°
Weight* 1.4 kg (3 lbs)
Separation 365 m (1200 ft) from transceiver
Environmental
Location indoor/outdoor
Altitude 2000 m (maximum)
Ambient Temperature -20 to +60 °C (-5 to +140 °F) (ATEX approved model)
-40 to +73 °C (-40 to +163 °F) (CSA/FM approved model)
Construction
Housing PVDF or ETFE base and lid (epoxy fitted joint)**
Mounting 2” NPT (Taper), R 2” (BSPT), or G 2" (BSPP) process
connection
Cable 2-core shielded/twisted, 0.519 mm2(20 AWG), PVC sheath
Options • flange adapter, refer to associated instructions
• submergence coupling, refer to associated instructions
Approvals CE***, FM, ATEX, C-TICK, INMETRO,
CSA (ETFE only)

7ML19985QK82 ST-H Transducer – OPERATION MANUAL Page EN-7
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Outline and Dimensions
119 mm (4.7”)
1” NPT conduit
thread
2” NPT, R 2” (BSPT), or G 2"
(BSPP) mounting thread
(process connection)
87 mm ∅
(3.4”)
82 mm (3.2”)
74 mm (2.9”)
Submersible
Flange Adapter
rigid metal conduit
plastic type
coupling
submergence shield
plastic type
coupling
Siemens Milltronics
flange adapter
Submergence transducer, used in applications where flooding is possible.
22 mm (0.87”)
20.9 mm
(0.82”)

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Mounting
• Do not mount the transducer directly to metal. Use a plastic type coupling and nipple for
isolation (customer supplied).
• Mount the transducer so that it is above the maximum material level by at least the
blanking value. Refer to the associated controller manual.
• For liquid applications, the transducer must be mounted so that the axis of transmission is
perpendicular to the liquid surface. For tanks with a parabolic top, an Easy Aimer may be
used to mount the transducer face perpendicular to the liquid surface.
• For solids applications, use a Siemens Milltronics Easy Aimer to aim the transducer.
• Where the transducer is mounted to a standpipe, the inner standpipe surface and end
must be smooth and free of burrs, ridges, and seams.
• Consider the optional temperature sensor when mounting the transducer.
• Do not overtighten mounting. Hand tightening of the mounting hardware is sufficient.
Mounting – Solids Applications
Non-Corrosive Applications
In solids applications, mount the transducer so that it is aimed toward the low level draw point. Use
the optional Siemens Milltronics Easy Aimer to facilitate this mounting.
Easy Aimer
(typical model)
transducer
WARNING!
NOT suitable
for use in a
corrosive
environment.

7ML19985QK82 ST-H Transducer – OPERATION MANUAL Page EN-9
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Mounting – Liquids Applications
Non-Corrosive Applications
flexible
conduit
steel plate
plastic
type
coupling
transducer
Flexible Conduit Bracket
Flexible conduit mounted transducer should not
be subjected to wind, vibration, or jarring
Submersible Plywood
rigid metal conduit
plastic
type
coupling
submergence
shield
Submersible transducer, use in
applications where flooding is possible.
Plywood mounting provides
excellent isolation, but must be
rigid enough to avoid flexing if
subjected to loading.
Blind Flange
nipple welded to
blind flange
plastic type
coupling
Flange, gasket, and hardware supplied by customer.
WARNING!
NOT suitable
for use in a
corrosive
environment.
WARNING!
NOT suitable
for use in a
corrosive
environment.
WARNING!
NOT suitable
for use in a
corrosive
environment.

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Mounting – Liquids Applications
Corrosive Applications
Interconnection
• For optimum isolation against electrical noise, run cable separately in a grounded metal
conduit with no other cabling (except temperature sensor). Ground shield only at
transceiver. Insulate shield at junctions to prevent inadvertent grounding.
• Seal all thread connections to prevent ingress of moisture.
• Do not route cable openly.
• Do not run cable near high voltage or current runs, contactors, and SCR control drives.
Note: Installation shall only be performed by qualified personnel and in accordance with
local governing regulations.
Blind Flange Flanged
plastic type
coupling
Siemens
Milltronics
flange
adapter
Flange, gasket, and hardware
supplied by customer.
Customer flanged
standpipe. If a metal
flange must be welded
to pipe, refer to the
Transducer Application
Manual . available at
www.siemens.com/
processautomation
Coupling
Coupling
2” coupling welded
to tank top

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Direct Connection
Connect the transducer directly to the Milltronics transceiver using the two conductor shielded
cable.
Coaxial Extension
Connect the transducer to the Siemens Milltronics transceiver via a junction box and RG–62 A/
U coaxial cable. This setup is effective for combined runs up to 365 m (1200 ft).
Note: When connecting to a SITRANS LUC500, a MultiRanger 100/200, or a HydroRanger
200, the white, black, and shield wires are all connected separately. DO NOT tie the white
and shield wires together.
Note: When connecting to a SITRANS LUC500, MultiRanger 100/200, and HydroRanger
200, do NOT use coaxial cable; see diagram below for proper procedure.
white
black
shield
Extend cable using RG-62 A/U coax.
white
shield

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3 Terminal Direct*
3 Terminal Extension*
* For SITRANS LUC500, MultiRanger 100/200, and HydroRanger 200 only
white
black
shield
white
black
shield
Extend cable using 0.823 mm2(18 AWG) shielded/twisted pair.

7ML19985QK82 ST-H Transducer – DRIFTSVEJLEDNING Side DK-1
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ST-H Driftsvejledning
Denne manual opridser de væsentligste karakteristika og funktioner af transducerne i ST-H serien.
Manualen
Vejledning i anvendelse af transducere kan downloades gratis fra vort website:
www.siemens.com/processautomation. Et trykt eksemplar kan købes hos din lokale Siemens
Milltronics repræsentant.
Spørgsmål vedrørende indholdet af denne manual kan rettes til:
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
E-mail: techpubs.s[email protected]
MILLTRONICS er et registreret varemærke, der tilhører Siemens Milltronics Process Instruments Inc.
Sikkerhedsvejledning
De anførte advarsler skal overholdes for at sikre egen og andres sikkerhed samt for at
beskytte produktet og det tilknyttede udstyr. Disse advarsler ledsages af en tydeliggørelse af
graden af forsigtighed, der bør overholdes.
Copyright Siemens Milltronics Process
Instruments Inc. 2004.
Alle rettigheder forbeholdes Ansvarsfragåelse
Vi opfordrer brugerne til at anskaffe de
autoriserede, indbundne manualer eller
læse de elektroniske versioner, der er
udarbejdet og skrevet af Siemens
Milltronics Process Instruments Inc.
Siemens Milltronics Process Instruments
Inc. påtager sig intet ansvar for indholdet
af delvise eller fuldstændige gengivelser
af indbundne eller elektroniske versioner.
Skønt vi har kontrolleret, at indholdet af denne
manual stemmer overens med de beskrevne
instrumenter, kan der stadig forekomme
variationer. Vi kan derfor ikke garantere en
fuldstændig overensstemmelse. Indholdet af
denne manual revideres jævnligt, og eventuelle
rettelser inkluderes i de efterfølgende udgaver. Vi
modtager gerne forslag til forbedringer.
Retten til ændringer af de tekniske data
forbeholdes.
ADVARSEL: vedrører et advarselssymbol på produktet og betyder, at en
manglende overholdelse af de nødvendige forholdsregler kan føre til død,
alvorlig personskade og/eller omfattende materielle skader.
ADVARSEL: betyder, at en manglende overholdelse af de nødvendige
forholdsregler kan føre til død, alvorlig personskade og/eller omfattende
materielle skader.
PAS PÅ: betyder, at en manglende overholdelse af de nødvendige forholdsregler kan
føre til omfattende materielle skader.
Bemærk: betyder vigtige oplysninger om produktet eller denne del af brugsvejledningen.

Side DK-2 ST-H Transducer – DRIFTSVEJLEDNING 7ML19985QK82
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Reparation af instrumentet og ansvarsbegrænsning
• Brugeren er ansvarlig for alle modifikationer og reparationer, der udføres på
apparatet af brugeren eller dennes repræsentant.
• Alle nye dele skal leveres af Siemens Milltronics Process Instruments Inc.
• Kun defekte dele bør repareres.
• Defekte dele må ikke genbruges.

7ML19985QK82 ST-H Transducer – DRIFTSVEJLEDNING Side DK-3
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Indledning
ST-H transducerne fungerer sammen med Siemens
Milltronics ultralydsniveauovervågningsprodukter.
Transduceren omdanner den elektriske energi af
sendeimpulsen fra transceiveren til akustisk energi. Derefter
omdanner den ekkoets akustiske energi tilbage til elektrisk
energi til kontrolenheden.
Transduceroverfladen udsender akustisk energi, der
udbreder sig med en amplitude, som falder omvendt
proportionalt med kvadraten af afstanden. Den udbredte
effekt er maksimal vinkelret på transduceroverfladen langs
transmissionsaksen. Lydstrålen, hvis diameter betegnes
strålevinklen, defineres som en kegle centreret omkring
transmissionsaksen med en grænse svarende til en
reduktion af effekten til halvdelen (– 3 dB).
ST-H transducerne har en indbygget temperaturføler, der oplyser kontrolenheden om
lufttemperaturen ved transduceren.
Generel vejledning
ADVARSEL: Konstruktionsmaterialerne er valgt på basis af deres kemiske
kompatibilitet (eller inerti) ved almindelig brug. Hvis de skal udsættes for særlige
omgivelser, bør foreneligheden kontrolleres i tabeller over kemisk kompatibilitet
inden installationen.
Bemærk: Dette produkt er beregnet til anvendelse i industriområder. Brugen af dette
udstyr i et beboelsesområde kan forårsage interferens med forskellige frekvensbaserede
kommunikationer.
transducer
transduceroverflade
–3db grænse
transmissionsakse,
vinkelret på
transducer-
overfladen

Side DK-4 ST-H Transducer – DRIFTSVEJLEDNING 7ML19985QK82
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Særlige anvisninger vedrørende installation i områder
med eksplosionsrisiko
(Reference: det europæiske ATEX Direktiv 94/9/EF,
Bilag II, 1/0/6)
Følgende instruktioner gælder for anlæg, der er dækket af certifikat nummer BAS
99ATEX2298X.
1. Dette udstyr kan anvendes med brændbare gasser og dampe sammen med
apparatgruppen II og i temperaturklassen T5.
2. Dette udstyr er godkendt til brug ved omgivende temperaturer i intervallet fra -20 °C til
+60 °C.
3. Dette udstyr vurderes ikke som en sikkerhedsanordning som beskrevet i
direktivet 94/9/EF Bilag II, paragraf 1.5.
4. Certifikatet ender på ”X”, hvilket angiver, at der gælder særlige betingelser for
installationen og brugen. De personer, der skal installere eller inspicere dette udstyr, skal
have adgang til certifikatets indhold.
5. Transduceren omfatter ikke nogen indre sikring eller andre komponenter, der kan
garantere dens egnethed ved tilslutning til en potentiel kortslutningsstrøm på 4000A.
Transduceren skal strømforsynes fra et apparat, der er egnet til tilslutning til en
strømforsyning med en potentiel kortslutning på under 4000A. Denne betingelse opfyldes
af Siemens Milltronics’ transceivere.
6. Installationen og inspektionen af dette udstyr skal udføres af tilstrækkeligt uddannet
personale i henhold til de gældende normer (EN 60079-14 og EN 60079-17 i Europa).
7. Reparation af dette udstyr skal udføres af tilstrækkeligt uddannet personale i henhold til
de gældende normer (fx. EN 60079-19 i Europa).
8. Komponenter, der skal indbygges eller bruges som erstatningskomponenter i udstyret,
skal monteres af tilstrækkeligt uddannet personale i henhold til fabrikantens
dokumentation.
9. Dette udstyr er godkendt på baggrund af brugen af følgende materialer ved dets
fremstilling:
• Klæbemiddel: Norton Performance Plastics Chemgrip
• Hus: ETFE
•Hus:PVDF
• Indkapsling: Master Bond Polysulphide EP21LPT eller Dow-Corning 3-4207
• Indkapsling: Cotronics Durapot 861-F3
• Indkapsling: Cotronics Durapot 864
Hvis det er sandsynligt, at udstyret vil komme i kontakt med aggressive stoffer, såsom
opløsningsmidler, der kan påvirke polymermaterialerne, påhviler det brugeren at træffe
egnede foranstaltninger for at undgå, at udstyret påvirkes uhensigtsmæssigt. Det er vigtigt at
gennemføre rutinemæssige inspektioner og at fastslå ud fra materialernes datablade, at
transduceren er modstandsdygtig over for de kemikalier, der bruges i processen.

7ML19985QK82 ST-H Transducer – DRIFTSVEJLEDNING Side DK-5
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Sikkerhedsregler
ST-H transducerens krop udgøres af to dele, der er støbt i PVDF eller ETFE (ethylen-
tetrafluorethylen-copolymer), med de indre dele indkapslet i epoxy. Samlingen mellem den
øvre og den nedre del er ikke hermetisk forseglet. Hvis denne samling udsættes for
omgivelser, der angriber epoxy, vil transducerens strukturelle integritet kunne tage skade. Som
følge heraf vil den øvre del skilles fra transducerens hoveddel.
I tilfælde af omgivelser, der er forenelige med PVDF eller ETFE, men som kan nedbryde epoxy,
skal transduceren monteres gennem en flange eller en tap vha. 2" gevindet på transducerens
nedre del. Samlingen mellem transducerens øvre og nedre del skal isoleres fra de korrosive
omgivelser.
Hvis den øvre del skiller fra transducerens hoveddel, vil strømførende kredsløb
blive udsat for omgivelserne, hvilket forøger risikoen for eksplosion, såfremt
flygtige eller eksplosive gasser eller støv er til stede i en tilstrækkelig
koncentration. Der kan også indtræffe en funktionsfejl i
niveaumålingssystemet, som kan påvirke den proces, i hvilken
ultralydsmålingen anvendes.
BEMÆRK:
Egnet til brug
i korrosive
omgivelser.
ADVARSEL:
IKKE egnet til
brug i korrosive
omgivelser.

Side DK-6 ST-H Transducer – DRIFTSVEJLEDNING 7ML19985QK82
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Tekniske data
* Omtrentlig forsendelsesvægt af transducer med standard kabellængde.
** Ved kemiske anvendelser skal kompatibiliteten af ETFE eller PVDF og epoxy kontrolleres, eller samlingen monteres
uden for processen.
*** Ydelsesdata oplyses på anfordring.
ST-H transducer
Måleområde 0,3 - 10 m (1 - 33 ft)
Tryk åben til atmosfæren
Forsyningskilde transduceren må kun forsynes fra en kontrolenhed, der er
godkendt af Siemens Milltronics
Frekvens 44 kHz
Strålevinkel 12°
Vægt* 1,4 kg (3 lbs)
Afstand 365 m (1200 ft) fra transceiveren
Omgivelser
Placering indendørs/udendørs
Højde 2000 m (maksimum)
Omgivelsestemperatur -20 til +60 °C (-5 til +140 °F) (ATEX-godkendt model)
-40 til +73 °C (-40 til +163 °F) (CSA/FM-godkendt model)
Konstruktion
Hus Base og låg af PVDF eller ETFE (samling indkapslet i
epoxy)**
Montage Procestilslutning: 2” NPT (Konisk), R 2” (BSPT) eller G 2"
(BSPP)
Kabel 2-trådet afskærmet/snoet, 0,519 mm2(20 AWG) PVC-
beklædning
Ekstraudstyr • flangeadapter, jf. den tilhørende vejledning
• neddykkelig samling, jf. den tilhørende vejledning
Godkendelser CE***, FM, ATEX, C-TICK, INMETRO,
CSA (kun ETFE)