Name: EF2...5 Conductive Electrodes with general approval for constructions
Brand: Fluid.iO
Price: on request EUR

Description

Conductive electrodes type EF2...5 are approved by the “DIBt” (German Institute for Structural Engineering) as liquid level limit switches for the overfill protection of containers for storing water-endangering liquids

Technical Data

Properties

Protection class EN60529: IP 65

connection thread: G1" | G1¼" | G1½"

Union nut: G2¾" | S 100x8

Operating temperature PE / PVC: atmospheric

Operating temperature PPH: 90°C

Operating temperature PTFE: 100°C

Operating pressure: atmospheric

Resistance value of line monitoring: 22 kΩ / 100 kΩ

Spacer form length > 1000 mm: 1 per 1000 mm

rod length: max. 6.000 mm

Rod diameter: 4mm | 6 mm

Material

Screw connection: PPH | PE | PVC | PTFE

Sensor rods: Edelstahl (1.4571), Hastelloy C, Titan, Tantal

Coating: PTFE

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EF2...5 application-specific configuration

EF - [ 1 ] - [ 2 ] - [ 3 ] - [ 4 ] - [ 5 ] - [ 6 ] - [ 7 ] - [ 8 ] - [ 9 ] - [ 10 ]

1 Elektrodenanzahl

2 : 2 Elektroden
3 : 3 Elektroden
4 : 4 Elektroden
5 : 5 Elektroden

2 Verschraubungsmaterial

PP : Polypropylen (Standard)
PE : Polyethylen
PV : Polyvinylchlorid
PT : Polytetrafluorethylen

3 Stabmaterial

VA : 1.4571
HC : Hastelloy C
TI : Titan
TA : Tantal
HC/TA : Tantalspitze mit HC-Grundstab

4 Stabdurchmesser

4 : 4 mm
6 : 6 mm

5 Elektrodenbeschichtung

VI : vollisoliert
TI : ca. 250 mm teilisoliert

6 Anschlussgewinde

125 : G1¼”
1" : G1” (nur EF2)
15" : G1½”
GF : Überwurfmutter G2¾”
S2 : Überwurfmutter S100 x 8

7 Kabelbruchwiderstand

22 : 22 kΩ
100 : 100 kΩ

8 Auswerteelektronik

ER : Auswertung über Elektrodenrelais
ET : mit Elektronikteil ET450/ET451 (nur EF2)

9 Stablänge

XX : bitte angeben (max 6.000 mm)

10 SIL2

OSIL2 : ohne SIL2
SIL2 : SIL2

Further product information

The EF2...5 fittings are made of PE, PPH, PVC or PTFE, depending on the requirements. The electrode rods are made of stainless steel 1.4571, Hastelloy C, titanium or tantalum. This makes the EF2...5 conductive electrodes suitable for use with highly aggressive media.

The electrode relays ER-107..., ER-217... or ER-145... (intrinsically safe control circuit), approved for overfill and leakage detection (Z-65.13-100 and Z-65.13-405) supply a measuring voltage that causes an operating current to flow through the signal line via the resistor built into the conductive electrode. If the conductive medium rises to the height of the electrode tips of the level detector, a circuit is closed. This causes the potential-free output contacts on the electrode relay to switch over. To cope with the different conductivities of the liquids, the electrode relays ER-107..., ER-217... or ER-145... can be supplied in two different response ranges (1...30 k / 6...90 k). Within these ranges, the response value can be adjusted by means of a potentiometer. Alternatively, an evaluation circuit (ET450/451) can be integrated directly in the connection head. 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 electrode relay operates according to the closed-circuit current principle, i.e. in the event of a mains failure, the output contacts switch as when the response level is reached.