8138 Radar Level Measuring Device

Brand: Burkert Fluid Control Systems
Does not ship to Virginia, United States

The Type 8138 is a non-contact radar level measuring device for continuous level measurement. It is particularly suitable for use in small vessels that contain beverage liquids under sanitary process conditions.
Features
  • For level measurement up to 20 meters
  • 4-20 mA/Hart - 2-Wires
  • Adjustable via Display, key operation or PC-Tool with DTM
  • ATEX approvals

Specifications

Accuracy

  • ± 2 mm

Adjustment

  • > 1 second (Dependent on the Parameter Adjustment)

Ambient Temperature Range

  • Conformity Specification: -40° to 55° C (-40° to 131° F)
  • Operation & Storage: -40° to 80° C (-40° to 176° F)

Applications

  • In Highly Purified Water
  • In the Stirring & Preparation Vessel

Approvals & Certifications

  • Security: EN 61010-1
  • ATEX: EN 60079-0, EN 60079-11, EN 60079-26
  • EMC EN 61326
  • Ex ia IIC T6
  • FDA
  • NAMUR: NE 21, NE 43
  • PTB 08

Class

  • Protection: Class II

Communication

  • HART

Cover Material

  • Polycarbonate (PC)

Current

  • Fault Signal: < 3.6 mA (Selectable)
  • Fault Signal: 20.5 mA (Output Unchanged)
  • Fault Signal: 22 mA (Selectable)

Damping Adjustment

  • 63 % of the Input Variable: 0 to 999 seconds

Deadband

  • Dead Zone: 50 mm

Display

  • LCD in Full Dot Matrix

Electrical Connectors

  • Cable Glands M20 x 1.5

Electrical Rating

  • Short Circuit Rating: 131 mA

Enclosure, Body Material

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

Environmental Protection

  • IP66
  • IP67

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# (ANSI B16.5)
  • 2” (DN 50) - PN 16 (DIN 2501)

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 150# (ANSI B16.5)
  • 3” (DN 80) - PN 40 (DIN 2501)

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# (ANSI B16.5)
  • 4” (DN 100) - PN 16 (DIN 2501)

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 150# (ANSI B16.5)
  • 6” (DN 150) - PN 16 (DIN 2501)
  • 6” (DN 150) - PN 40 (DIN 2501)

Frequency

  • K-band (26 GHz Technology)

Humidity

  • 80 %, Max.

Interval Time

  • Approximately 1 second

Load Resistance

  • 1,000 ohms

Materials of Construction

  • Ground Terminal: 316L Stainless Steel 1.4435
  • Ground Terminal: 316Ti Stainless Steel 1.4571

Measuring Range

  • 0.05 to 10 metres (Clamp 2”, DN 25 Connection or Flange DN 50 Version)
  • 0.05 to 20 metres (Flange DN 100)

NPT Connection

  • 1/2” NPT

Operating Voltages

  • 14-30 Vdc (Ex ia Instrument)
  • 14-36 Vdc
  • Conformity Specification: 30 V

Output

  • 4-20 mA / HART (2-Wire)

Power

  • 983 mW

Pressure Range

  • bar: -1 to 16
  • kPa: -100 to 1,600
  • psi: -14.51 to 232.16

Process Connection Material

  • 316L Stainless Steel

Process Temperature

  • With DN 25 Connection: -40° to 130° C (-40° to 266° F)
  • With Clamp, Flange Connection: -40° to 200° C (-40° to 392° F)

Resistance

  • 250 ohms

Resolution

  • 1 mm, Max.
  • 1.6 µA

Ring Material

  • Seal Ring: NBR

Seat / Seal Material

  • Seal: EPDM

Temperature Coefficient

  • 0.03 % / 10 K (Average Temperature Coefficient of the Zero Signal Temperature Error)

Torque

  • Torque of the Flange Screws: 60 Nm (531 In/Lbs)

Tri-Clamp Connection

  • 2” Sanitary Clamp
  • 3” Sanitary Clamp
  • 4” Sanitary Clamp

Vibration

  • Vibration Resistance: Mechanical Vibrations with 4 G at 5 to 100 Hz

Wetted Materials

  • Antenna: TFM-PTFE

  • In the Stirring & Preparation Vessel
  • In highly purified water

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