Type 8111

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1.

General technical data

1.1. About the device

The vibrating level switch is available with double relay output or with NAMUR output. The technical data depends on the vibrating level

switch variant.

1.2. All variants

Product properties

Material

Make sure the device materials are compatible with the fluid you are using.

Further information can be found in chapter “3.1. Bürkert resistApp” on page 5.

Further information on the materials can be found in chapter “3.2. Material specifications” on page 6.

Surface quality

Ra < 3.2 μm (thread) / Ra < 0.8 μm (clamp)

Dimensions

Further information can be found in chapter “4. Dimensions" on page 6.

Weight

Approx. 850 g

Measured variable

Limit level of liquids

Performance data

Measurement deviation

± 1 mm

Repeatability

0.1 mm

Hysteresis

Approx. 2 mm with vertical installation

Switching delay

Approx. 500 ms (On/Off)

Electrical data

Power source (not supplied)

Limited power source according to UL/EN 62368-1 standards or limited energy circuit according to UL/

EN 61010-1 paragraph 9.4

Overvoltage category according

to IEC 61010-1

Category III

Resonance frequency

Approx. 1200 Hz

Medium data

Process temperature

- 50…+ 150 °C (- 58…+ 302 °F)

Process pressure

- 1…64 bar/- 100…6400 kPa (- 14.51…+ 928.64 PSI)

Dynamic viscosity η

0.1…10000 mPa.s (requirement: with density 1)

Density

Selected by DIP switch:

• Standard sensitivity: 0.7…2.5 g/cm3

• High sensitivity: 0.5…2.5 g/cm3

Flow velocity

Max. 6 m/s (with a viscosity of 10000 mPa.s)

Process/Pipe connection & communication

Process connection

Thread G or NPT, ¾" or 1"; clamp 2"

Approvals and conformities

Directives

CE directive

Further information on the CE Directive can be found in chapter “2.3. Standards” on page 5

NAMUR recommendation

IEC 60947-5-6 (EN 50227)

Explosion protection

ATEX: EN 60079-0, EN 60079-11, EN 60079-26

Further information can be found in chapter “2.4. Explosion protection” on page 5.

Environment and installation

Ambient temperature

• Operating on the housing: - 40…+ 70 °C (- 40…+ 158 °F)

• Storage and transport: - 40…+ 80 °C (- 40…+ 176 °F)

Temperature derating

Further information can be found in chapter “5.1. Temperature derating diagram” on page 8.

Relative air humidity

20…85 %, without condensation

Degree of protection according

to IEC/EN 60529

IP66/IP67 with M20 × 1.5 gland mounted and tightened