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Burkert Vibrating Level Switch, 8111

8111 Vibrating Level Switch

Brand: Burkert Fluid Control Systems
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Burkert Vibrating Level Switch, 8111 Burkert Vibrating Level Switch, 8111
The 8111 is a vibrating level switch for liquids, using a tuning fork for level detection. It is designed for industrial use in areas of process technology and can be used in liquids. Typical applications are overfill or dry run protection. 

Depending on the version it is also used for monitoring or control of levels in hazardous environments, even for combustible liquids, gases, fogs or vapours. 

Due to the simple and rugged measuring system, the 8111 is virtually unaffected by the chemical and physical features of the liquid. It works even under unfavourable conditions such as turbulence, air bubbles, foam generation, buildup or varying products.
Features
  • For universal use as overfill or dry run protection system
  • Setup without adjustment
  • For food and beverage industry thanks to surface finishing < 0.8 µm
  • ATEX approvals

1 - 7 of 7 Part Numbers
558 110
558 110
  • Output - Double Relay (DPDT), 2 Floating SPDTs
  • Process Connection - G 3/4"
558 111
558 111
  • Output - Double Relay (DPDT), 2 Floating SPDTs
  • Process Connection - 3/4" NPT
558 112
558 112
  • Output - Double Relay (DPDT), 2 Floating SPDTs
  • Process Connection - G 1"
558 113
558 113
  • Output - Double Relay (DPDT), 2 Floating SPDTs
  • Process Connection - 1" NPT
558 114
558 114
  • Output - Double Relay (DPDT), 2 Floating SPDTs
  • Process Connection - 2" Clamp
558 115
558 115
  • Output - NAMUR Signal - Ex Version ATEX Approval
  • Process Connection - G 3/4"
558 116
558 116
  • Output - NAMUR Signal - Ex Version ATEX Approval
  • Process Connection - G 1"
1 - 7 of 7 Part Numbers

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Specifications

Brand

Ambient Temperature Range

  • Conformity Specification: -40° to 85° C (-40° to 185° F)
  • Operating: -40° to 70° C (-40° to 158° F)
  • Storage: -40° to 80° C (-40° to 176° F)

Applications

  • Chemical Industry - Solvents, Reactors
  • Food Processing Industry
  • Water/Sewage Water Plants

Approvals & Certifications

  • ATEX: EN 50014, EN 50020, EN 50284
  • CE
  • EMC EN 61326
  • Ex ia IIC T6
  • NAMUR: IEC 60947-5-6 (EN 50227)
  • PTB

Approvals & Certifications

  • Security: EN 61010-1

BSP Connection

  • G 1” Male
  • G 3/4” Male

Class

  • Protection: Class I (Relay Output)
  • Protection: Class II (NAMUR Output)

Consumption

  • Current (Falling Characteristic - Blade Covered, Rising Characteristic - Blade Uncovered, Fault Signal): ≤ 1 mA - NAMUR Output
  • Current (Falling Characteristic - Blade Uncovered, Rising Characteristic - Blade Covered): ≥ 2.2 mA - NAMUR Output
  • Power (AC): 1-8 VA - Relay Output
  • Power (DC): Approximately 1.3 W - Relay Output

Cover Material

  • Polycarbonate (PC)

Delay Time

  • Approximately 500 milliseconds
  • When Immersed: 0.5 seconds - Relay Output
  • When Laid Bare: 1 second - Relay Output

Density Range

  • 0.5 to 2.5 g/cm³ (DIP Switch)
  • 0.7 to 2.5 g/cm³

Electrical Connectors

  • 1 or 2 Cable Glands M20x1.5

Electrical Rating

  • 1 A at 253 Vdc, 50 W, Max.
  • 10 µA at 10 mV Min. - Relay Output
  • 5 A at 253 Vac, 1,250 VA, Max.
  • Short Circuit Rating: 103 mA

Enclosure, Body Material

  • 316L Stainless Steel, 1.4404
  • PBT (Polybutylene Terephthalate)

Environmental Protection

  • IP66
  • IP67

Flange Material

  • ECTFE (Ethylene Chlorotrifluoroethylene)
  • Enamel
  • Hastelloy C-4
  • PFA

Frequency

  • Approximately 1,200 Hz

Hysteresis

  • Approximately 2 mm (0.08”) with Vertical Installation

Length

  • Extension Tube Length: 200 to 1,000 mm

NPT Connection

  • 1” NPT Male
  • 3/4” NPT Male

Power

  • 516 mW

Power Supply

  • 20-253 Vac at 50/60 Hz - Relay Output
  • 20-72 Vdc - Relay Output
  • Conformity Specification: 20 V
  • NAMUR Input: 8.2 Vdc
  • Open-Circuit Voltage: 8.2 V - NAMUR Output
  • Short-Circuit Current: Approximately 8.2 mA - NAMUR Output

Pressure Range

  • psi: -14.51 to 928.64 (kPa: -100 to 6,400, bar: -1 to 64)

Process Temperature

  • -50° to 150° C (-58° to 302° F)

Ring Material

  • Seal Ring: EPDM

Seat / Seal Material

  • Process Seal: Klingersil C 4400

Switch Type

  • 2 Floating SPDTs
  • Relay (DPDT)

Temperature Range

  • -50° to 250° C (-58° to 482° F)

Tri-Clamp Connection

  • 1” Tri-Clamp
  • 1-1/2” Tri-Clamp
  • 2” Tri-Clamp

Viscosity

  • Dynamic Viscosity: 0.1 to 10,000 MPa-s (with Density 1)

Wetted Materials

  • Tuning Fork & Process Fitting: 316L Stainless Steel 1.4435

  • Food and Beverage Industry
  • Chemical Industry - Solvents, Reactors
  • Water/Sewage Water Plants

Documentation

Data Sheets

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