Function Description; Design - GOK LWG 2000 Notice De Montage Et De Service

storing, transporting, unpacking OPERATION
ASSEMBLY, MAINTENANCE
START-UP, SHUT-DOWN , REPLACEMENT,
RESTART, RESTORATION, DISPOSAL,
ELECTRICAL INSTALLATION
TROUBLESHOOTING

FUNCTION DESCRIPTION

The probe is fitted with a PTC thermistor, which is installed at the lowest point of the
containment facility to be monitored.
In correct operation, the PTC thermistor is surrounded by air and is heated constantly with a
probe heating circuit. When the temperature changes, the PTC thermistor changes its
electrical resistance as soon as liquid comes into contact with the PTC thermistor as the result
of a leak. This causes the display unit to trigger an alarm.
The alarm is reset only when the leak is eliminated. The display unit switches back to
monitoring mode:
• green LED "Betrieb [Operation]"
• The device that is connected via the potential-free relay contact can be restarted.

DESIGN

The display unit is intended to be attached to a wall and contains the power supply, the
display and operating elements and all the components to evaluate the signal from the
connected probe.
The alarm on the display unit is:
• displayed optically via the red LED "Alarm" and
• acoustically via a buzzer.
The display unit also has a potential-free relay contact to connect an external power supply,
e.g. a burner pump, motor, warning light, acoustic signal generator or accessories from the
safety system type F-Stop
part no. 15 073 57 c
Activity
®
GWG-LWG.
Leak alarm type LWG 2000
Qualification
trained personnel
qualified personnel, customer service
qualified electrician
qualified personnel, customer service
qualified electrician, trained personnel
Green LED "Betrieb [Operation]"
Switch "Alarmton [Buzzer]"
Seal
Red LED "Alarm"
Button "Prüfen [Test]"
Probe
Connection cable
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