EF2 230 V

Conductive electrodes with 24...230 V direct connection

Features

WHG Überfüllsicherung

product family

level measurement

product class

overfill protection and leackage detector

suitable for

fluids

measurement principle

conductive


Special characteristics

  • High chemical resistance

  • Output 2 changeover contacts

  • Line monitoring for cable short circuit / cable breakage

Description

The EF2 overfill protection (24...230 V AC/DC) is approved by "DIBt" as an overfill protection for liquids hazardous to water.

Technical Data

Properties
connection
Polyesterdose (PO)
Protection class
IP 65
connection thread
G1"
Union nut
auf Wunsch
Material
Screw connection
PE, PVC, PPH, PTFE
Sensor rods
Edelstahl (1.4571), Hastelloy C, Titan, Tantal
Operating pressure
atmosphärisch
Resistance value of line monitoring
100 kΩ
Sensitivity range
einstellbar 2…100 kΩ
Operating temperature
PE
atmosphärisch
PVC
atmosphärisch
PPH
90 °C
PTFE
100 °C
Power supply
nominal voltage
24…230 V AC/DC
Power consumption
< 2 W
Output
Output contact
2 potentialfreie Wechselkontakte
Switching voltage
max. 250 V AC /30 V DC
Switching current
max. 5 A AC / 5 A DC
Switching capacity
max. 750 VA / 90 W
displays
Betriebs-LED Grün, Funktions-LED Rot
Switching delay
ca. 0,5 s Anzug / Abfall
CE marking
siehe Konformitätserklärung

EF2 230 V configuration

Your Configuration

Basename
E
Überfüllsicherung
Elektrodenanzahl
Verschraubungsmaterial
Stabmaterial
Stabdurchmesser
Stabbeschichtung
Elektronikteil
Stablänge

Further product information

The EF2 screw connection is made of PE, PPH, PVC or PTFE. The electrode rods are made of stainless steel 1.4571, Hastelloy C, titanium or tantalum. This makes the overfill protection suitable for use with highly aggressive media.

The ET-480a electronic component installed in the junction box supplies a measuring voltage which causes an operating current to flow through the signal line via the resistor installed in the conductive electrode. If the conductive medium bis rising to the level of the electrode tips of the level sensor, a circuit is closed. This causes the potential-free output contacts in the electronics section to switch over.

In order to cope with the different conductivities of the liquids, the sensitivity can be adjusted via the built-in potentiometer.

If there is a line interruption, the output contacts are switched over (as in the case of an alarm caused by reaching the response level or voltage failure). If a line short-circuit occurs, this corresponds to an "alarm message" (as in the case of reaching the response level). The electronic part operates according to the closed-circuit current principle, i.e. in the event of a power failure, the output contacts switch in the same way as when the response level is reached.

  • High chemical resistance
  • Line monitoring for cable short circuit / cable breakage
  • Connection voltage 24 ...230 V AC/DC
  • Output 2 changeover contacts

System structure

The overfill protection can be connected to our "Optical Acoustic Alarm Devices" of the type series OAA-300.

 

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Accessoires

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Fluid.iO
Sensor + Control
GmbH & Co. KG

An der Hartbrücke 6
64625 Bensheim