Elsner Leak Manuale utente
Leak
Leakage sensor for water and pipe breakage reporting
Technical specifications and installation instructions
Item number 30161
EN
Elsner Elektronik GmbH Control and Automation Engineering
Sohlengrund 16
Germany Fax +49 (0) 70 33 / 30 945-20 www.elsner-elektronik.de
Technical Service: +49 (0) 70 33 / 30 945-250
2 Description
Leakage sensor Leak • Version: 03.08.2017 • Errors and technical modifications subject to change without notice.
1. Description
The Leakage sensor Leak includes an evaluation unit and a probe. If there is water
between the electrodes of the probe, the evaluation unit produces an acoustic alarm.
Additionally, the alarm output of the evaluation unit switches on. The output can be
used to transmit the alarm signal to other systems (e.g. klaxons, light indicators, stop
valves, building control system, alarm system). The changeover contact design of the
output makes it possible to detect wire breakage in the alarm line by suitable systems.
Functions:
• Detection of water on the probe
• Acoustic alarm signal by the evaluation unit during a water alarm (sustained
beeping tone). Short beeping during the follow-up time (1 minute after the end
of the alarm).
• Output for alarm reporting (potential-free changeover contact)
1.1. Deliverables
• Evaluation unit with mains power supply
•ProbewithBNCcable
• Cable guide for alarm output
1.2. Technical specifications
1.2.1. Analysis unit
The product is compliant with the provisions of EC guidelines.
Casing Plastic
Colour Grey
Installation Surface mounted
Protection category IP 20
Dimensions approx. 118 × 86 × 65 (W × H × D, mm),
Weight approx. 460 g
Ambient temperature Operation -20…+70 °C, storage -55…+90°C.
Ambient humidity max. 95 % RH, avoid condensation
Operating voltage 230 V AC, 50 Hz
Power consumption no alarm: approx. 1 W
with alarm: approx. 4 W
Probe input 1 x electrode probe,
plug-in BNC terminal
Alarm output 1 × potential-free changeover contact,
max. 230 V AC / 3 A,
max. 30 V DC / 3 A,
Connector NC/Com/NO
3 Installation and commissioning
Leakage sensor Leak • Version: 03.08.2017 • Errors and technical modifications subject to change without notice.
1.2.2. Probe
The product is compliant with the provisions of EC guidelines.
2. Installation and commissioning
If the alarm output is used, the installation, testing, commissioning and
troubleshooting of the unit may only be performed by an electrician
(pursuant to VDE 0100).
2.1. Installation notes
DANGER!
Risk to life from live voltage (mains voltage)!
There are unprotected live components within the device.
• VDE regulations and national regulations are to be followed.
• Ensure that all lines to be assembled are free of voltage and take
precautions against accidental switching on.
• Do not use the device if it is damaged.
• Take the device or system out of service and secure it against
unintentional use, if it can be assumed, that risk-free operation is no
longer guaranteed.
The device is only to be used for its intended purpose. Any improper modification or
failure to follow the operating instructions voids any and all warranty and guarantee
claims.
After unpacking the device, check it immediately for possible mechanical damage. If it
has been damaged in transport, inform the supplier immediately.
The device may only be used as a fixed-site installation; that means only when assem-
bled and after conclusion of all installation and operational start-up tasks and only in
the surroundings designated for it.
Elsner Elektronik is not liable for any changes in norms and standards which may occur
after publication of these operating instructions.
Casing Polished stainless steel
Installation for placing on the floor
Protection category IP 68
Electrode chemical resist-
ance
Water
Dimensions Diameter: approx. 77 mm
Cable length approx. 140 mm (plus cable grip and plugs)
Weight approx. 200 g
4 Installation and commissioning
Leakage sensor Leak • Version: 03.08.2017 • Errors and technical modifications subject to change without notice.
2.2. Evaluation unit installation
The evaluation unit may only be installed and operated in dry,
indoor spaces.
Never expose the evaluation unit to water (e.g. rain) or dust. This can damage the elec-
tronics.
The evaluation unit can be screwed to the wall with mounting brackets.
2.3. Probe placement
The electrode probe is placed on the floor with the contacts facing downwards. Ideally,
the probe should be located in a place that, in case of water damage, would be the first
to be flooded — e.g. close to washing machines, sinks, baths, water pipes or pump
sumps.
Fig. 1
Evaluation unit exterior view
1 Mains supply line (mains sup-
ply 230 V AC, 50 Hz)
2 Bushing for alarm output line
(sealed in the delivered state)
3 BNC terminal for the probe
4 Loudspeaker (behind the
opening in the side wall
of the casing)
5 Mounting brackets
3
4
1
2
5 Installation and commissioning
Leakage sensor Leak • Version: 03.08.2017 • Errors and technical modifications subject to change without notice.
2.4. Leakage sensor commissioning
1. Connect the probe to the evaluation unit (insert the BNC plug).
2. Connect the mains supply line to the evaluation unit. Line voltage 230 V AC, 50 Hz.
3. The device is ready for operation.
2.5. Alarm output use
If the alarm output is used, the installation, testing, commissioning and
troubleshooting of the unit may only be performed by an electrician
(pursuant to VDE 0100).
DANGER!
Risk to life from live voltage (mains voltage)!
There are unprotected live electric components inside the device.
• Observe the VDE provisions.
Fig. 2
Probe
1) 3 electrodes on the lower side
2) Connection lead (for evalua-
tion unit)
1
2
Fig. 3 Overview
Evaluation
unit
Probe
The probe stands with all
the three electrodes on the
floor
Mains 230 V
AC, 50 Hz
Evaluation unit beyond
the reach of water
6 Behaviour in case of alarm
Leakage sensor Leak • Version: 03.08.2017 • Errors and technical modifications subject to change without notice.
1. Disconnect the device from voltage supply (disconnect the mains plug).
2. Open the casing of the evaluation unit (four screws under the cover and in the cor-
ners of the casing)
3. Replace the seal on the alarm output with the enclosed cable bushing and insert
the alarm line into the casing.
4. Connect the output device to the relay contact. Please observe the internal view in
the figure below.
5. Close the casing.
6. Connect the mains supply line. Line voltage 230 V AC, 50 Hz.
7. The device is ready for operation.
3. Behaviour in case of alarm
The alarm will be triggered if there is water between the electrodes of the probe for
more than 3 seconds. If there is no more water contact detected on the electrodes, the
alarm will continue for 1 additional minute (follow-up time).
Operation
state
Water
between the
electrodes?
Beeping
sound (once
per second)
‘Alarm’
LED (red)
Output relay
setting
No alarm No No off NC – Com
Alarm Yes sustained on NO – Com
Alarm
Follow-up
time
no (1 minute fol-
low-up time)
short: on NO – Com
Fig. 4 Inside view
1) Mains supply line (mains
supply 230 V AC, 50 Hz)
2) Bushing for alarm output line
3) BNC terminal for the probe
4) Loudspeaker
5) LEDs:
Alarm (red during alarm and
follow-up time),
Power (green)
6) Alarm output:
potential-free changeover
contact NC/Com/NO
2
5
1
6
3
4
7 Behaviour in case of alarm
Leakage sensor Leak • Version: 03.08.2017 • Errors and technical modifications subject to change without notice.
3.1. Signal tone
If there is water contact, the evaluation unit produces sustained beeping sounds once
per second. The beeping sounds are shorter during the follow-up time.
3.2. Output
Fig. 5
If no alarm is active:
Contact between
NC (Normally Closed) and
Com (Common) is closed.
COM
NONC
Fig. 6
If there is an active alarm and
during the follow-up time:
Contact between
NO (Normally Open) and
Com (Common) is closed.
COM
NONC
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