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Electrode relays and contact protection relays

The electrode relays are used for conductive level detection. levels. The possible applications extend areas where conductive, liquid media are to be detected, controlled to be detected, controlled or regulated. Hereby level detection (overflow / dry run) as well as minimum / maximum as well as minimum / maximum controls can be realised. The contact protection relays are universal measuring transducers, which input signals (resistance values) with "Namur" specification (DIN EN 60947). Namur" specification (DIN EN 60947) into switching signals of floating output contacts.

Protection class EN60529

• clamp : IP20
• Housing : IP40

Technical Data

• Operating temperature : -20...+60 °C
• Storage temperature : -30...+80 °C
• Output contacts : potentialfrei
• Switching voltage : min. 5 V | max. 250 V AC / 150 V DC
• Switching current : min. 5 mA | max. 5 A AC / 5 A DC
• Switching capacity : min. 300 mW | max. 100 VA / 50 W
• Quiescent current : umschaltbar
• Weight : ca. 250 g
• CE marking : siehe Konformitätserklärung
• Ex-protection/IECEx : siehe Prüfbescheinigung

Hydrostatic immersion probes (0.8...10mWS)

Continuous and precise level measurement in unpressurised, open basins and tanks as well as underground applications such as shafts, wells and boreholes.

Properties

• Protection class EN60529 : IP68
• Operating temperature : -10...70 °C (PVC: -10...60 °C)
• Storage temperature : -25...70 °C (PVC: -10...60 °C)
• Power supply : 15...30 V DC
• power : max. 25 mA
• Output : 2-Leiter-Technik
• Measuring range : 0,8...10 mWs (Standard)
• Overpressure : abhängig vom Messbereich
• Deviation from characteristic curve : Nichtlinearität,
• Insulation resistance : > 100 kΩ
• Short-circuit resistance : permanent
• Reverse polarity protection : keine Schädigung o. Funktion bei vertauschten Anschlüssen

Materials

• Housing : Edelstahl 1.4571, PVC, PVDF
• Measuring cell : Edelstahl 1.4404, Keramik Al2o3 96%, Keramik Al2o3 99,9%
• Seals : FKM (Viton ®), EPDM, FFKM (Kalrez ®)
• Cable : PVC, PUR, FEP (Ø8 mm; 2 x 0,25 mm2 mit Luftschlauch und PTFE-Filter