Buhler WW3 Owner's manual
Fluidcontrol
Installation and Operation Instructions
Original instructions
Water alarm unit
WW3, WW6, WW10
BE300001
05/2022
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20
E-Mail: [email protected]
Internet: www.buehler-technologies.com
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20
Internet: www.buehler-technologies.com
E-Mail: [email protected]
Read this instruction carefully prior to installation and/or use. Pay at-
tention particularly to all advises and safety instructions to prevent in-
juries. Bühler Technologies can not be held responsible for misusing
the product or unreliable function due to unauthorised modifications.
All rights reserved. Bühler Technologies GmbH 2023
Document information
Document No..........................................................BE300001
Version.........................................................................05/2022
WW3, WW6, WW10
Contents
1 Introduction.....................................................................................................................................................................................................................2
1.1 Intended Use.........................................................................................................................................................................................................2
1.2 Functionality.........................................................................................................................................................................................................2
1.3 Ordering instructions.........................................................................................................................................................................................2
1.4 Scope of Delivery..................................................................................................................................................................................................2
2 Safety instructions ......................................................................................................................................................................................................... 3
2.1 Important advice................................................................................................................................................................................................. 3
2.2 General hazard warnings ................................................................................................................................................................................. 3
3 Transport and storage .................................................................................................................................................................................................. 5
4 Setup and connection ...................................................................................................................................................................................................6
4.1 Installation ............................................................................................................................................................................................................6
4.2 Electrical Connections........................................................................................................................................................................................6
5 Operation and control .................................................................................................................................................................................................. 7
6 Cleaning and Maintenance.........................................................................................................................................................................................8
7 Service and repair...........................................................................................................................................................................................................9
7.1 Spare parts drawing/location WW3 and WW10......................................................................................................................................10
7.2 Spare parts drawing/location WW6.............................................................................................................................................................11
8 Disposal ........................................................................................................................................................................................................................... 12
9 Appendices ..................................................................................................................................................................................................................... 13
9.1 Technical Data.................................................................................................................................................................................................... 13
9.2 Dimensions ......................................................................................................................................................................................................... 14
9.3 Pin assignment .................................................................................................................................................................................................. 14
10 Attached documents ....................................................................................................................................................................................................15
iBühler Technologies GmbHBE300001 ◦ 05/2022
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1 Introduction
1.1 Intended Use
Water alarms are used to monitor hydraulic and lubricating oils for ingress water and to alert to condensation water. The
devices utilise the natural separation of water and oil to detect any water with a special interface float.
Please note the technical data in the appendix for the specific intended use, existing material combinations, as well as temper-
ature limits.
WARNING
All device models are solely intended for industrial applications. They are not safety com-
ponents. The devices must not be used if failure or malfunction thereof jeopardises the
safety and health of persons.
Use in explosive areas is prohibited.
1.2 Functionality
The specific weight of the special Water alarm float is balanced so it does not buoy up in oil (specific weight approx. 0.85kg/
dm³) but floats in water.
As the water level rises, the water alarm float gains buoyancy and successively activates contacts 1 and 2 in the WW3 and WW10
(see drawing in appendix). The lower contact 2 expediently triggers a warning, the top contact 1 can be used to shut off the sys-
tem. There is approx. 1 litre of water in the water alarm and its feed line on the WW3 and WW10 before contact 2 is activated.
The WW6 only has one contact, which is activated at approx. 90ml of water.
As with the level switches, contact is glandless. The special design of the float allows monitoring even high viscosity lubricants.
The WW3 and WW6 further allow visual inspection, as the casing is made from a transparent material.
1.3 Ordering instructions
Item no.: Description
30 03 999 Water alarm WW6, one rising NO contact
30 16 999 Water alarm WW6, G1/2 connection turned 90°
30 03 899 WW6 including assembly kit
30 04 999 Water alarm WW6/SW, one change-over contact
30 17 999 Water alarm WW6/SW, G1/2 connection turned 90°
30 04 699 WW6/SW including assembly kit
32 04 999 Assembly kit
Item no.: Description
30 01 999 Water alarm WW3
30 02 999 Water alarm WW3-SO
30 09 999 Water alarm WW3-SW
30 05 999 Water alarm WW10
30 06 999 Water alarm WW10-SO
30 00 999 Water alarm WW10-SW
31 01 999 Assembly kit
1.4 Scope of Delivery
– Water alarm units
– Product documentation
– Connection/mounting accessories (optional)
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2 Safety instructions
2.1 Important advice
Operation of the device is only permitted if:
– the product is used under the conditions described in the installation- and operation instruction, the intended application
according to the type plate and the intended use. In case of unauthorized modifications done by the user Bühler Technolo-
gies GmbH can not be held responsible for any damage,
– when complying with the specifications and markings on the nameplates.
– the performance limits given in the datasheets and in the installation- and operation instruction are obeyed,
– monitoring devices and safety devices are installed properly,
– service and repair is carried out by Bühler Technologies GmbH,
– only original spare parts are used.
This manual is part of the equipment. The manufacturer keeps the right to modify specifications without advanced notice. Keep
this manual for later use.
Signal words for warnings
DANGER
Signal word for an imminent danger with high risk, resulting in severe injuries or death if not avoided.
WARNING
Signal word for a hazardous situation with medium risk, possibly resulting in severe injuries or death if not
avoided.
CAUTION
Signal word for a hazardous situation with low risk, resulting in damaged to the device or the property or
minor or medium injuries if not avoided.
NOTICE
Signal word for important information to the product.
Warning signs
These instructions use the following warning signs:
Warns of a general hazard General information
Voltage warning Unplug from mains
2.2 General hazard warnings
The equipment must be installed by a professional familiar with the safety requirements and risks.
Be sure to observe the safety regulations and generally applicable rules of technology relevant for the installation site. Prevent
malfunctions and avoid personal injuries and property damage.
The operator of the system must ensure:
– Safety notices and operating instructions are available and observed,
– The respective national accident prevention regulations are observed,
– The permissible data and operational conditions are maintained,
– Safety guards are used and mandatory maintenance is performed,
– Legal regulations are observed during disposal,
– compliance with national installation regulations.
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Maintenance, Repair
Please note during maintenance and repairs:
– Repairs to the unit must be performed by Bühler authorised personnel.
– Only perform conversion-, maintenance or installation work described in these operating and installation instructions.
– Always use genuine spare parts.
– Do not install damaged or defective spare part. If necessary, visually inspect prior to installation to determine any obvious
damage to the spare parts.
Always observe the applicable safety and operating regulations in the respective country of use when performing any type of
maintenance.
The method for cleaning the devices must be adapted to the IP protection class of the devices. Do not use cleaners which could
damage the device materials.
DANGER Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
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3 Transport and storage
Only transport the product inside the original packaging or a suitable alternative.
The equipment must be protected from moisture and heat when not in use. It must be stored in a covered, dry, dust-free room
at room temperature.
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4 Setup and connection
DANGER Electric voltage
Risk of electric shock
a) De-energise the system.
b) The equipment may only be installed, maintained and put into operation by instruc-
ted, competent personnel.
c) Always observe the applicable safety regulations for the operating site.
4.1 Installation
Be sure to install the water alarm with the red mark at the same height of the bottom edge of the oil tank (also see drawing be-
low).
WW3 and WW10 have a G1¼ connection for the bottom connection on the tank and a G3/4 connection for the top connection on
the tank. With the WW6, the connections are G3/4 for the bottom and G1/2 for the top tank connection.
Be sure the attached pipe is tight and ensure a short pipe connecting route. Long routes allow more water to collect before the
alarm is triggered.
We recommend installing the water alarm to your tank according to the following installation example and using the corres-
ponding shut-off valve.
An assembly kit is available for the water alarm WW6 to allow for compact and easy installation on the oil tank.
1 Drain valve 2 red mark
3 Control/signal unit 4 upper check valve
5 Tank 6 Oil
7 Water 8 lower check valve
9 Water alarm units
4.2 Electrical Connections
The device must be installed by an authorised professional familiar with the safety requirements and risks. Be sure to observe
the safety regulations and generally applicable rules of technology relevant for the installation site.
The WW3 and WW10 have a 6-pin (+PE) plug type S6 to connect to electricity, the WW6 has a 3 pin (+PE) plug type M3.
On both plugs, the top of the plug must be removed from the plug base to connect to electricity. Loosen the screw on the top of
the plug for this purpose.
The contact assignment of the plug varies by version. The contacts are illustrated so the float is in the bottom of the tank and no
contact has been activated yet.
Please refer to chapter Pin assignment [> page14] in the appendix for the pin assignment.
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5 Operation and control
NOTICE
The device must not be operated beyond its specifications.
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6 Cleaning and Maintenance
The method for cleaning the devices must be adapted to the IP protection class of the devices. Do not use cleaners which could
damage the device materials.
During regular device inspection, the water and sludge which have collected inside the water alarm should be drained via the
drain valve.
Closing the shut-off valve on one of the two connecting lines between the water alarm and oil tank then opening the drain valve
will flush the open connecting line well, flushing out any sludge deposit. After flushing the other connecting line the same way,
close the drain valve; both drain valves must be open all the way.
NOTICE
Collect the drained oil/water mixture and dispose properly.
For a list of spare parts and explanation of the replacement, see chapter Service and repair [> page9].
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7 Service and repair
This chapter contains information on troubleshooting and correction should an error occur during operation.
Repairs to the unit must be performed by Bühler authorised personnel.
Please contact our Service Department with any questions:
Tel.: +49-(0)2102-498955 or your agent
If the equipment is not functioning properly after correcting any malfunctions and switching on the power, it must be inspected
by the manufacturer. Please send the equipment inside suitable packaging to:
Bühler Technologies GmbH
- Reparatur/Service -
Harkortstraße 29
40880 Ratingen
Germany
Please also attach the completed and signed RMA decontamination statement to the packaging. We will otherwise be unable to
process your repair order.
You will find the form in the appendix of these instructions, or simply request it by e-mail:
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7.1 Spare parts drawing/location WW3 and WW10
1 Bottom tank connection 2 Bottom seal
3 Water alarm glass resp. steel casing 4 Contact rail
5 Upper connection 6 Plug
7 Header 8 Cap nuts
9 1st contact 10 Red mark
11 2nd contact 12 Float
13 Bottom piece
Spare Parts
Item no. Qty. Description for type No.
3201999 1 Float WW3, WW10 12
3005001 1 Steel casing WW10 3
3221000 1 Water alarm glass WW3 3
3223000 2 Seal WW3 2
3205003 2 Seal WW10 2
Installing/removing spare parts
– Close both shut-off vales and drain remaining liquid from the water alarm.
– Loosen the four Cap nuts (8) and remove along with the lock washers.
– Remove the header (7) incl. plug (6) and switching tube. The top seal (2) can now be replaced.
– The water alarm glass or the steel casing (3) can also easily be removed.
– The bottom seal (2) and the float (12) are now exposed and can be replaced. Be sure to centre the new float (12) in the bottom
piece (13).
– Insert the new water alarm glass or steel casing (3) in the groove on the bottom piece (13).
– Lastly, reassemble the individual parts in reverse order.
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7.2 Spare parts drawing/location WW6
1 Water drain 2 Bottom seal
3 Float 4 Water alarm glass
5 Header 6 Plug
7 Cap nuts 8 Lock screws
9 Upper connection 10 Bottom edge, oil tank, red ring
11 Bottom piece 12 Lower connection
Spare Parts
Item no. Qty. Description for type No.
3202999 1 Float WW6 3
3222000 1 Water alarm glass WW6 4
3224000 2 Seal WW6 2
Installing/removing spare parts
– Close both shut-off vales and drain remaining liquid from the water alarm.
– Loosen the four cap nuts (7) and remove along with the lock washers (8).
– Remove the header (5) incl. plug (6). The top seal (2) can now be replaced.
– The water alarm glass (4) can also easily be removed.
– The bottom seal (2) and float (3) are now exposed and can be replaced. Be sure the new float (3) is centred in the bottom piece
(11) and the top float pin is inside the header (5).
– Insert the new water alarm glass (4) in the groove on the bottom piece (11).
– Lastly, reassemble the individual parts in reverse order.
NOTICE!Note: The tightening torque for the four cap nuts is max. 4Nm.
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8 Disposal
The applicable national laws must be observed when disposing of the products. Disposal must not result in a danger to health
and environment.
The crossed out wheelie bin symbol on BühlerTechnologiesGmbH electrical and electronic products indicates special disposal
notices within the European Union (EU).
The crossed out wheelie bin symbol indicates the electric and electronic products bearing the symbol
must be disposed of separate from household waste. They must be properly disposed of as waste elec-
trical and electronic equipment.
BühlerTechnologiesGmbH will gladly dispose of your device bearing this mark. Please send your
device to the address below for this purpose.
We are obligated by law to protect our employees from hazards posed by contaminated devices. Therefore please understand
that we can only dispose of your waste equipment if the device is free from any aggressive, corrosive or other operating fluids
dangerous to health or environment. Please complete the "RMA Form and Decontamination Statement", available on our web-
site, for every waste electrical and electronic equipment. The form must be applied to the packaging so it is visible from the
outside.
Please return waste electrical and electronic equipment to the following address:
Bühler Technologies GmbH
WEEE
Harkortstr. 29
40880 Ratingen
Germany
Please also observe data protection regulations and remember you are personally responsible for the returned waste equipment
not bearing any personal data. Therefore please be sure to delete your personal data before returning your waste equipment.
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9 Appendices
9.1 Technical Data
Technical Data WW6
Max. operating pressure: 6 bar
Operating temperature: min. 0 °C, max. 80 °C
Max. viscosity: 1200 mm2/s
Max. density of oil: 0.86 kg/dm3
Material
Housing: AI/PC
Float PP
Contact type: Reed contact as NO or change-over contact
Max. operating voltage: 230 V AC/DC
Max. switching output: 50 VA/40 VA
Max. switching current: 1 A
Plug connection: M3 (3-pin + PE DIN EN 175301-803)
IP rating: IP65
Cable fitting: PG 11
Weight: approx. 1.35 kg
Technical Data WW3 and WW10
Max. operating pressure: WW3 = 3 bar
WW10 = 10 bar
Operating temperature: 0 °C to 80 °C
Max. viscosity: 1200 mm2/s
Max. density of oil: 0.86 kg/dm3
Material
Housing: WW3 = transparent shell
WW10 = steel shell
Float: PP
Contact type: Reed contacts, 2x each as NO contact, NC contact or change-over (also see contact assignment)
Max. operating voltage: 230 V AC/DC
Max. switching output: NO contact/NC contact 50 VA (AC)/50 W (DC)
Change-over 40 VA/40 W
Max. switching current: 1 A
Plug connection: S6 (6 pin + PE DIN EN 175301-803)
IP rating: IP65
Cable fitting: PG 11
Weight: WW3 = 6 kg
WW10 = 8 kg
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9.2 Dimensions
WW6 WW3, WW10
first
contact
second
contact
approx.
9.3 Pin assignment
WW3/WW10 WW3-SO/WW10-SO WW3-SW/WW10-SW
1st contact
2nd contact
1st contact
2nd contact
1st contact
2nd contact
WW6 WW6/SW
1 contact rising NO contact 1 change-over contact
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10 Attached documents
– Declaration of Conformity KX300001
– RMA - Decontamination Statement
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RMA-Nr./ RMA-No.
Die RMA-Nr. bekommen Sie von Ihrem Ansprechpartner im Vertrieb oder Service. Bei Rücksendung eines Altgeräts zur
Entsorgung tragen Sie bitte in das Feld der RMA-Nr. "WEEE" ein./ You may obtain the RMA number from your sales or ser-
vice representative. When returning an old appliance for disposal, please enter "WEEE" in the RMA number box.
Firma/ Company
Firma/ Company
Straße/ Street
PLZ, Ort/ Zip, City
Land/ Country
Zu diesem Rücksendeschein gehört eine Dekontaminierungserklärung. Die gesetzlichen Vorschriften schreiben vor, dass Sie uns diese Dekontaminierung-
serklärung ausgefüllt und unterschrieben zurücksenden müssen. Bitte füllen Sie auch diese im Sinne der Gesundheit unserer Mitarbeiter vollständig aus./ This
return form includes a decontamination statement. The law requires you to submit this completed and signed decontamination statement to us. Please com-
plete the entire form, also in the interest of our employee health.
Ansprechpartner/ Person in charge
Name/ Name
Abt./ Dept.
Tel./ Phone
E-Mail
Gerät/ Device
Anzahl/ Quantity
Auftragsnr./ Order No.
Serien-Nr./ Serial No.
Artikel-Nr./ Item No.
Grund der Rücksendung/ Reason for return
Kalibrierung/ Calibration Modifikation/ Modification
Reklamation/ Claim Reparatur/ Repair
Elektroaltgerät/ Waste Electrical & Electronic Equipment (WEEE)
andere/ other
bitte spezifizieren/ please specify
Ist das Gerät möglicherweise kontaminiert?/ Could the equipment be contaminated?
Nein, da das Gerät nicht mit gesundheitsgefährdenden Stoffen betrieben wurde./ No, because the device was not operated with
hazardous substances.
Nein, da das Gerät ordnungsgemäß gereinigt und dekontaminiert wurde./ No, because the device has been properly cleaned and
decontaminated.
Ja, kontaminiert mit:/ Yes, contaminated with:
explosiv/
explosive
entzündlich/
flammable
brandfördernd/
oxidizing
komprimierte
Gase/
compressed
gases
ätzend/
caustic
giftig,
Lebensgefahr/
poisonous, risk
of death
gesundheitsge-
fährdend/
harmful to
health
gesund-
heitsschädlich/
health hazard
umweltge-
fährdend/
environmental
hazard
Bitte Sicherheitsdatenblatt beilegen!/ Please enclose safety data sheet!
Das Gerät wurde gespült mit:/ The equipment was purged with:
Diese Erklärung wurde korrekt und vollständig ausgefüllt und von einer
dazu befugten Person unterschrieben. Der Versand der (dekontaminier-
ten) Geräte und Komponenten erfolgt gemäß den gesetzlichen Bestim-
mungen.
This declaration has been filled out correctly and completely, and signed by
an authorized person. The dispatch of the (decontaminated) devices and
components takes place according to the legal regulations.
Datum/ Date
rechtsverbindliche Unterschrift/ Legally binding signature
Falls die Ware nicht gereinigt, also kontaminiert bei uns eintrifft, muss die
Firma Bühler sich vorbehalten, diese durch einen externen Dienstleister
reinigen zu lassen und Ihnen dies in Rechnung zu stellen.
Should the goods not arrive clean, but contaminated, Bühler reserves the
right, to comission an external service provider to clean the goods and in-
voice it to your account.
Firmenstempel/ Company Sign
DE000011
12/2022
RMA-Formular und Erklärung über Dekontaminierung
RMA-Form and explanation for decontamination
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20
E-Mail: [email protected]
Internet: www.buehler-technologies.com
This manual suits for next models
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