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Domestic technology Alarm units, probes and signalling devices CoFox ELT 500/4
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CoFox ELT 500/4

Variants Documents

  • for conductive media such as water, waste water, emulsions and many more
  • with visual alarm and Reset button
  • relay contact for connection of additional alarm equipment
  • up to 4 zones can be monitored

Suitable for use with electrically conductive liquids which do not foam excessively, are not viscous and not adhesive (bridging), e.g. water, emulsions or waste water. Ideal for generating alarms in large installations and facilities. Several zones (also large areas) can be monitored simultaneously with electrodes (probes) at various points.

Wall mounting housing with visual alarm, operation indicator and reset key. The CoFox ELT® 500/4 level controller operates on the basis of conductivity. The electrodes connected to the control unit monitor the status at several points. When one or several electrodes are bridged, the red LED belonging to the corresponding electrode circuit is switched on. For fast and precise location of the leak, a label is provided for each LED. A common voltage-free relay contact can be used to control separate alarm devices (alarm light or horn). The function is only activated by electrode signals which are longer than 1 second in duration. The alarm is saved and cannot be reset for the duration of the signal. The alarm condition must cleared before the alarm can be reset by means of the Reset button on the device.
CoFox® ELT 500/4 can be cascaded for large area monitoring from a centralised location.

probe connections
4 probe circuits
Zone monitoring
4 input circuits
Response threshold
50 kOhm
Operating temperature range
Ambient:
-10/+50 °C
Supply voltage
AC 230 V
Nominal power
  3 VA or  
probe circuit
max. AC 3 V
Switching output
Relay contact:
1 voltage-free changeover contact
Contact rating:
AC 250 V, 2 A
visual indication
LED green:
Mains operation
LED red:
alarm condition
Housing
wall mounting housing with plug-in base made of impact-resistant plastic (ABS)
W x H x D:
53 x 113 x 108 mm
Weight:
  460 g
Degree of protection:
IP 30 (EN 60529)
Scope of delivery
  • Level switch without probe

PROFESSIONELLE-FUELLSTANDLOESUNGEN-PROSPEKT-IT_23-08.PDF

professionelle Füllstandlösungen für Industrie- und Prozesstechnik

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