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WU-20

WIKA WU-20, WU-25, WU-26 Operating Instructions Manual

Operating instructions Betriebsanleitung
Version Standard Version Ex nA ic
Ultra High Purity Transducer, models WU-20, WU-25, WU-26
WU-25
WU-20
WU-26
2 WIKA Operating instructions/Betriebsanleitung, WU-2X
Contents Page 3 - 21 EN
1. Important details for your information
2. A quick overview for you
3. Signs, symbols and abbreviations
4. Function
5. For your safety
6. Packaging
7. Starting, operation
8. Adjustment of zero point
9. Maintenance, accessories
10. Trouble shooting
11. Storage, disposal
12. EU declaration of conformity 13 FM certicate of compliance 14 FM control drawing
Inhalt Seite 22 - 40 DE
1. Wichtiges zu Ihrer Information
2. Der schnelle Überblick für Sie
3. Zeichenerklärungen, Abkürzungen
4. Funktion
5. Zu Ihrer Sicherheit
6. Verpackung
7. Inbetriebnahme, Betrieb
8. Einstellung Nullpunkt
9. Wartung, Zubehör
10. Störbeseitigung
11. Lagerung, Entsorgung
12. EU-Konformitätserklärung 13 FM-Zertikat 14 FM-Control drawing
ENContents
3WIKA Operating instructions/Betriebsanleitung, WU-2X
1. Important details for your information
Read these operating instructions without fail before installing and starting the pressure transducer
1. Important details for your information
Read these operating instructions before installing and starting the pressure transducer. Keep the operating instructions in a place that is accessible to all users at any time. The following installation and operating instructions have been compiled by us with great care but it is not feasible to take all possible applications into consideration. These installation and operation instructions
should meet the needs of most pressure measurement applications. If questions remain regarding a specic
application, you can obtain further information:
■
Via our Internet address www.wika.de / www.wika.com
■
The product data sheet is designated as PE 87.07
■
Contact WIKA for additional technical support (+49) 9372 / 132-0
If the serial number on the product label gets illegible (e.g. by mechanical damage or repainting), the retrace­ability of the instrument is not possible any more.
WIKA transducers are carefully designed and manufactured using state-of-the-art technology. Every compo­nent undergoes strict quality and e)vironmental inspection before assembly and each instrument is fully
tested prior to shipment. Our environmental management system is certied to DIN EN ISO 14001.
Use of the product in accordance with the intended use WU-20, WU-25 and WU-26:
Use the transducer to transform the pressure into an electrical signal. For transducer with Ex-marking: Use the nonincendive transducer of category 3G to transform the pressure into an electrical signal in hazar­dous areas of zone 2.
Certicate for transducer with Ex-marking:
Transducer for operation in hazardous areas. ATEX marking: II 3G Ex nA ic IIC T6/T5/T4 Gc X IECEx marking: IECEx BVS 13.0070 X, Ex nA ic IIC T6/T5/T4 Gc
EN
4 WIKA Operating instructions/Betriebsanleitung, WU-2X
WARNING!
Potential danger of life or of severe injuries.
1. Important details for your information / ... / 3. Signs and symbols
Certicate for transducer with FM-marking:
Transducer for operation in hazardous areas in compliance with the respective certicate (see Control drawing No. 11537885, page 24). FM Approval ratings: Non-incendive for Class I Division 2 Groups A, B, C and D
Knowledge required: Install and start the transducer only if you are familiar with the relevant regulations
and directives of your country and if you have the qualication required. You have to be acquainted with the
rules and regulations on hazardous areas (if transducer with Ex-marking), measurement and control techno-
logy and electric circuits. Depending on the operating conditions of your application you have to have the
corresponding knowledge, e.g. of aggressive media.
2. A quick overview for you
If you want to get a quick overview, read Chapters 3, 5, 7 and 11. There you will get some short safety instructions and important information on your product and its starting. Read these chapters in any case.
3. Signs, symbols and abbreviations
EN
WARNING!
For transducer with Ex-marking: Instructions for hazardous areas: Potential danger of life or of severe injuries.
WARNING!
Potential danger of life or of severe injuries due to catapulting parts.
CAUTION!
Potential danger of burns due to hot surfaces.
Notice, important information,
malfunction.
The product complies with the applicable European directives.
5WIKA Operating instructions/Betriebsanleitung, WU-2X
3. Signs and symbols / 4. Function
2-wire Two connection lines are intended for the voltage supply. The supply current is the measurement signal. 3-wire Two connection lines are intended for the voltage supply. One connection line is intended for the measurement signal. U+ Positive supply connection
U- Negative supply connection
S+ Positive measurement connection
4. Function
Ultra High Purity Transducer
WU-20: Single End WU-25: Flow Through WU-26: Modular Surface Mount
Function: The pressure prevailing within the application is transformed into a standardised electrical signal
through the deection of the diaphragm, which acts on the sensor element with the power supply fed to the
transducer. This electric signal changes in proportion to the pressure and can be evaluated correspondingly
For transducer with Ex-marking ATEX European guideline for explosion protection. The product complies with the requirements for the European directive 2014/34/EU on explosion protection
V DC direct voltage
EN
For transducer with FM (Factory Mutual) marking:
The product was tested and certied
by FM Approvals. It complies with the applicable US-American standards on safety (including explosion protec­tion).
6 WIKA Operating instructions/Betriebsanleitung, WU-2X
5. For your safety
5. For your safety
WARNING!
■
Select the appropriate transducer with regard to scale range, performance and specic
measurement conditions prior to installing and starting the instrument.
■
Consider the relevant national regulations (e.g.: EN/IEC 60079-14) and observe the applicable
standards and directives for special applications (e.g. with dangerous media such as
acetylene, ammable gases or liquids and toxic gases or liquids and with compressors). Non-observance can result in serious injury and/or damage to equipment.
■
Open pressure connections only after the system is without pressure!
■
Please make sure that the transducer is only used within the overload threshold limit all the time!
■
Observe the ambient and working conditions outlined in section 7 „Technical data”.
■
Ensure that the transducer is only operated in accordance with the provisions i.e. as described in the following instructions.
■
Do not interfere with or change the transducer in any other way than described in these
operating instructions.
■
Remove the pressure transducer from service and mark it to prevent it from being used again accidentally, if it becomes damaged or unsafe for operation
■
Take precautions with regard to remaining media in removed pressure transducers. Remaining media in the pressure port may be hazardous or toxic!
■
Have repairs performed by the manufacturer only.
■
The operator is responsible for the material compatibility as well as correct handling, operation and maintenance.
Information about material consistency against corrosion and diusion can be found in our WIKA-Handbook,
"Pressure and Temperature Measurement".
WARNING!
For transducer with Ex-/FM-marking: Consider the relevant safety instructions as well as
the respective country specic regulations for installation and operation in hazardous areas (e.g.: IEC 60079-14, NEC). If you do not observe these stipulations, serious injuries and/or
damage may occur.
EN
7WIKA Operating instructions/Betriebsanleitung, WU-2X
6. Packaging
6. Packaging
Has everything been supplied?
Check the scope of supply:
■
Completely assembled transducer
■
Inspect the transducer for possible damage during transportation. Should there be any obvious damage, inform the transport company and WIKA without delay.
■
The UHP transducers are puried, evacuated and double-packed in clean rooms in a protec­tive atmosphere (clean room class 5 according to ISO 14644). Special plastic protective
caps are used to protect the high-quality threaded connections (ttings). The gauges should
remain in this special packaging until installation in order to prevent damage and contamina-
tion. Therefore remove the ESD (Electro-Static-Discharge) protective foil only at the place of
installation.
■
Keep the packaging, as it oers optimal protection during transportation (e.g. changing
installation location, shipment for repair).
■
Ensure that the pressure connection thread and the connection contacts will not be damaged.
■
Remove this protection cap only just before installing the transducer.
■
Mount the protection cap when removing and transporting the instrument.
Unpack the transducer
1. Remove the transducer from the box.
2. Remove the outer protective bag and discard.
3. Carry the transducer (sealed in the inner bag), into the clean area.
EN
8 WIKA Operating instructions/Betriebsanleitung, WU-2X
7. Starting, operation
7. Starting, operation
Required tools: wrench (ats 19 and 16), screw driver (0.040" to 0.060" / 1 to 1.5 mm) and a pair
of scissors, allen key for WU-26
Mechanical connection Product label (example)
Signal Power Supply
EN
PIN assignment
P # Product No. S # Serial No.
Coded manufacture date
Before mounting and commissio­ning the instrument, ensure you read the operating instructions!
Use this wrench at
for screwing in!
Don't use this wrench at!
9WIKA Operating instructions/Betriebsanleitung, WU-2X
7. Starting, operation
EN
■
Remove the protection cap only just before installation.
■
When mounting the instrument, ensure that the sealing faces of the instrument and the measuring point are clean and undamaged.
■
Do not scratch or nick the bead. Do not over tighten. Damage to the bead will aect the tting's performance and may cause leakage in the system.
■
Screw in or unscrew the instrument only via the ats using a suitable tool and the prescribed
torque. The appropriate torque depends on the dimension of the pressure connection and on
the sealing element used (form/material). Do not use the case as working surface for screwing
in or unscrewing the instrument.
■
When screwing the transmitter in, ensure that the threads are not jammed.
WARNING!
For transducer with Ex-/FM-marking:
■
Protect the inner diaphragm against any contact with abrasive substances and pressure
peaks and do not touch it with tools. Damage of the diaphragm may result in losing the
explosion protection.
■
Observe the technical data for the use of the transducer in connection with aggressive / corrosive media and for the avoidance of mechanical hazards.
Mechanical Connection
■
Prepare the gas line connections appropriately.
■
You should blow clean all tting components (such as sealing gaskets, for example) using a clean/ltered gas. Please refer to the specic technical guides furnished by the gasket manufacturers for additional specications.
■
You can then remove the protective lm, as well as any plastic caps there may be for protecting high-quality ttings.
10 WIKA Operating instructions/Betriebsanleitung, WU-2X
7. Starting, operation
Face Seal Connections (only WU-20, WU-25)
For connections compatible with VCR®-ttings:
1. Hold the swivel female face seal / swivel male face seal, mounting part (valve etc.) or case hexagon. Tight­en the swivel female face seal hand-tight and adjust the instrument to the desired position. When tighten-
ing or untightening at mounting parts (valves etc.) or ttings, ensure that the threads do not get jammed.
2. Hold the swivel female face seal with a suitable open-end wrench. Tighten the swivel female face seal / swivel male face seal or mounting part (valve etc.) by a 1/8 or 1/4 turn (depending on the sealing elements used) beyond the hand-tight position.
3. Please refer to the specic technical guides furnished by the tting manufacturers for additional specica­tions.
4. With that the transducer is mechanically connected. Electrical connection possibilities are described in the following section.
Welding Connections (only WU-20, WU-25)
The weld needs to be fully penetrating, but amperage and heat need to be minimised. We recommend
owing Argon gas through the transducer during welding. This will help to cool the transducer. Prior to
welding tubing to the transducer, it is recommended that a few test welds be made.
WARNING!
■
Make sure the transducer is not connected to any other device, prior to arc welding.
■
Disconnect the transducer from any electrical device.
■
The operator is responsible for the material compatibility as well as correct handling, opera­tion and maintenance.
Prepare the transducer for use
1. Adjust the zero point (please refer to chapter Zero Adjustment).
2. Verify integrity of the weld or seal by appropriate helium leak-testing procedures.
3. Turn the gas ow ON then OFF, 10 times to remove any particles generated during
installation. (The ow rate used should at least equal the process ow specications.)
MSM, Modular Surface Mount (only WU-26)
Please observe the corresponding technical specications, such as torques and mounting position of the
contact components.
EN
11WIKA Operating instructions/Betriebsanleitung, WU-2X
7. Starting, operation
Electrical connection
WARNING!
Connect the enclosure to ground through the process connection, against electromagnetic elds
and electrostatic discharge.
WARNING!
Specic conditions for safe use in explosive atmosphere:
■
External earthing connection shall be established by end-user via pressure connection minimum 4 mm² required. External earthing connection shall be corrosion resist and locked against rotation.
■
The connector provided by the end user in the end use application shall be in accordance with all applicable clauses of IEC 60079-0 and IEC 60079-15. A minimum degree of protection IP54 according to IEC 60529 shall be ensured.
■
Cable provided by end-user shall be suitable for the ambient temperature.
■
The Sub-D version has to be installed in a way that it is protected against an impact energy
> 4 J. The connector as well as the corresponding sealing are provided by the end user in the end use application and shall be in accordance with all applicable clauses of IEC 60079-0 and IEC 60079-15. A minimum degree of protection IP54 according to IEC 60529 shall be ensured.
■
Use only shielded cables. Note that with connectors no connection between cable shield and
housing is possible.
For instruments with cable outputs, the cable is always shielded. Depending upon the design
(ordered version) the screen may or may not be connected with the enclosure. An additional equipotential bonding maybe required.
■
Ensure that the cable diameter you select ts to the cable gland of the connector Ensure that
the cable gland of the mounted connector is positioned correctly and that the sealings are available and undamaged. Tighten the threaded connection and check the correct position of the sealings in order to ensure the ingress protection
■
Cover ying leads with ne wires by an end splice (cable preparation).
■
Please make sure that the ends of cables with ying leads do not allow any ingress of moisture.
■
The transducer must be connected and operated in accordance with the approriate regulations. Take care to ensure that the electrical connection (e.g. M12 connector) is correctly made (fully sealed).
EN
12 WIKA Operating instructions/Betriebsanleitung, WU-2X
Current output (2-wire) 4 ... 20 mA: RA ≤ (U+ – 10 V) / 0,02 A
Voltage output (3-wire) 0 ... 5 V: RA > 5 kOhm 0 ... 10 V: RA > 10 kOhm
with RA in Ohm and U+ in Volt
Current for external display- or evaluation equipment can be supplied directly from the circuit, when operating a transducer with current output. A voltage drop specic to the display unit is to be considered. The transduc­ers are short-circuit-proof for a short time, but anyhow any incorrect connection of the instrument should be avoided.
WARNING!
■
For equipment with Ex nA ic certication, or if operated under nA ic conditions: Do not
separate when energized.
■
For products with FM Approval: The connection between cable and connector shall
withstand a tensile force of min. 15 N
The transducer is designed to operate with an input voltage of DC 10 ... 30 V / DC 14 ... 30 V with output signal 0 ... 10 V. The voltage value Ui = DC 30 V shall not be exceeded in the current loop circuit. The inter-
relationship between voltage supply and load resistor (RA) is illustrated by the following diagram.
Signal output and allowed load
4 ... 20 mA, 2-wire
7. Starting, operation
EN
permitted range
13WIKA Operating instructions/Betriebsanleitung, WU-2X
Wiring details
Bayonet connector, 4-pin Circular connector M12 x 1, 4-pin Flying leads, 1.5 m
2-wire U+ = A U- = D U+ = 1 U- = 3 U+ = red U- = black 3-wire U+ = A U- = D S+ = B U+ = 1 U- = 3 S+ = 4 U+ = red U- = black S+ = brown Wire gauge - - 0.22 mm
2
(AWG 24) Diameter of cable - - 4.8 mm Torque required for
mounting counter­connector should be ensured:
1 Nm 1 Nm -
Ingress Protection per IEC 60529
IP 67 (NEMA 4) IP 67 (NEMA 4) IP 67 (NEMA 4) The ingress protection classes specied only apply while the pressure transmitter is connected with female connectors
that provide the corresponding ingress protection.
Refer to remark for IP-protection at clause 7 “Specic conditions for safe use in explosive atmosphere”
7. Starting, operation
EN
4
3
1
2
14 WIKA Operating instructions/Betriebsanleitung, WU-2X
Wiring details
Sub-D HD connector, 15-pin Sub-D connector, 9-pin
2-wire U+ = 7
U- = 5 U- = 12
U+ = 4 U- = 8
U-
= 9
3-wire U+ = 7
U- = 5 U- = 12
S+ = 2
U+ = 4 U- = 8
U-
= 9
S+ = 1
Wire gauge - ­Diameter of cable - ­Torque required for moun-
ting counter-connector should be ensured:
0.3 Nm (both srews) 0.3 Nm (both srews)
Ingress Protection per IEC 60529
IP 54 IP 54
The ingress protection classes specied only apply while the pressure transmitter is connected with female
connectors that provide the corresponding ingress protection.
Refer to remark for IP-protection at clause 7 “Specic conditions for safe use in explosive atmosphere”
7. Starting, operation
EN
15WIKA Operating instructions/Betriebsanleitung, WU-2X
Specications Models WU-20, WU-25 and WU-26
WU-20 / WU-25
WU-26
Pressure ranges psi 30 60 100 160 250 350 500 1000 1500
bar 2 4 7 11 17 25 36 70 100
Over pressure safety *
)
psi 120 120 210 320 500 750 1100 2100 3000
Burst pressure *
)
psi 1800 1800 2200 2600 4800 6200 5800 8000 10500
Pressure ranges psi 2000 3000 5000
bar 145 225 360
Over pressure safety *
)
psi 4200 6600 10500
Burst pressure *
)
psi 10500 10500 12000 Other pressure ranges, pressure units (e.g. MPa, kg/cm
2
) and absolute pressure on request
*
)
1 psi = 0.069 bar Measuring principle Metal thin-lm sensor Materials
■
Wetted parts
- Pressure Connection 316L stainless steel, according to SEMI F20 (option: 316L VIM/VAR)
- Pressure sensor 2.4711 / UNSR 30003
■
Case 304 SS
Inboard helium leak test < 1 x 10
-9
mbar l/sec (atm STD cc/sec) according to Semi F1 Surface nish Electropolished, typical Ra ≤ 0.13 µm (RA 5); max. Ra ≤ 0.18 µm (RA 7) exceeds Semi F19 Dead volume cm
3
WU-20 < 1.5, WU-25 < 1, WU-26 < 1 Permissible Medium Speciality gases, vapours, liquids Power supply U+ U+ in VDC 10 ... 30 with output signal 4 ... 20 mA / 0 ... 5 V
14 ... 30 with output signal 0 ... 10 V Signal output and RA in Ohm 4 … 20 mA, 2-wire RA ≤ (U+ – 10 V) / 0.02 A maximum ohmic load RA 0 ... 5 V, 3-wire RA > 5 k
0 ... 10 V, 3-wire RA > 10 k Power Pmax W 1 Adjustability zero % of span -3.5 up to +3.5 (via potentiometer) Current output signal
-2 up to +3.5 (via potentiometer) Voltage output signal
7. Starting, operation
EN
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