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NP-25X configure
EF 3…5 24 V configure
ES-20 configure
NP-25X
Pneumatic level switch
Reliable & simple probe for sensing aggressive, sticky or heavily contaminated liquids, especially suitable as overflow protection.
Properties NP-250 | NP-252
- Connection head : PA
- Protection class EN60529 Connection head : IP 54
- connection thread : ab G½”
- Container connection flange : ab DN 25
- Pitot tube material : PVC
- Material Screw connection : PVC
- Material flange : PVC
- Hose Ø : 16 mm / 25 mm
- Operating temperature : max. +60 °C
- medium temperatur : max. +60 °C
- Contact : Wechsler
- Switching voltage silver : 250 V AC
- Switching voltage gold : 24 V AC
- Switching current silver : 6 A
- Switching current gold : 100 mA
Properties NP-251 | NP-253
- Connection head : PS
- Protection class EN60529 Connection head : IP 54
- connection thread : ab G½”
- Container connection flange : ab DN 25
- Pitot tube material : 1.4571
- Material Screw connection : 1.4571
- Material flange : 1.4571
- Hose Ø : 15 mm / 28 mm
- Operating temperature : max. +60 °C
- medium temperatur : max. +90 °C
- Contact : Wechsler
- Switching voltage silver : 250 VAC
- Switching voltage gold : 24 V AC
- Switching current silver : 6 A
- Switching current gold : 100 mA
EF 3…5 24 V
Conductive electrodes with 24 V DC direct connection
The conductive electrodes EF3...5 are approved by the "DIBt" as overfill prevention devices for liquids hazardous to water.
Properties
- connection : integrierter Anschlusskopf
- Protection class : IP 65
- connection thread : G 1¼"
- Material Screw connection : PPH
- Material electrode rods : Edelstahl (1.4571), Hastelloy C, Titan, Tantal
- material coating : PTFE
- Coating length : voll = ganzer Stab (10 mm am Stabende sind blank) teil = ca. 250 mm von oben
- Rod diameter : 4 mm, 6 mm
- rod length : max. 6 m
- Operating temperature : 85 °C
- Operating pressure : atmosphärisch
- Spacer : ab Länge > 1000 mm je 1000 mm 1 Abstandshalter
Properties electronic part
- Operating temperature : –20...+85 °C
- Storage temperature : –30...+85 °C
- nominal voltage : 24 V DC ± 15%
- Power consumption : max. 2 W (Klemme A1, A2)
- Switching voltage : max. 250 V AC, 150 V DC min. 5 V DC (Relais mit Kombi-Goldkontakten)
- Switching current : max. 3 A AC, 3 A DC min. 1 mA
- Switching capacity : max. 750 VA, 150 W
- Sensitivity : 3k ... 100 kΩ in vier Stufen (3 k, 10 k, 30 k, 100 kΩ) wählbar
ES-20
Pressure limiter | Pressure monitor | Safety pressure limiter | Pressure regulator | electronic safety switching device
TÜV-certified, type-tested electronic safety switching device (SIL2)
Properties
- Operating voltage : 16...32 V DC (max. 5,9 W)
- Dimensions : 150 x 60 x 42 mm (L x B x H)
- Housing : Aluminium (eloxiert)
- Protection class : IP65
Approvals
- DGRL 2014/68/EU Kat:IV : Baumustergeprüft gemäß Druckgeräterichtlinie
- DIN EN12263:1998 : Kälteanlagen und Wärmepumpen Sicherheitsschalteinrichtungen zur Druckbegrenzung -Anforderungen und Prüfungen; Kategorie IV
- DIN EN378:2020 : Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen
- DIN EN61508:2011 : SIL2
Operating conditions
- Pressure type : Relativdruck, Differenzdruck
- Temperature of the fluid : -40…+125 °C
- Ambient temperature : -20…+65 °C
- Parts in contact with media : Edelstahl
Connections
- Process connection Relative pressure (internal thread) : G ¼“
- Process connection differential pressure (internal thread) : G ⅛“
- Analogue current output : 1 x 4...20 mA
- Digital inputs/outputs (configurable) : 2 x Alarm / 1 x Alarm & 1 x Fernentriegelung
Measuring range relative pressure
- Nominal pressure (variable selectable) : -1...500 bar
- Overload pressure : 2 x Nenndruck
- Bursting pressure : 4 x Nenndruck
- Setting accuracy : 0,1 % vom Nenndruck
Measuring range differential pressure
- Nominal pressure : 0...1 mbar 0...10 mbar 0...50 mbar 0...100 mbar 0...250 mbar 0...1.000 mbar
- Overload pressure : 10 x Nenndruck
- Bursting pressure : 15 x Nenndruck
- Setting accuracy : 0,1 % vom Nenndruck
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