Kobold Guided Wave Radar Level Transmitter, NGR
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NGR Guided Radar Level Transmitter

Brand: KOBOLD Instruments, Inc
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The NGR is a level sensor that uses TDR technology (time domain reflectometry) and thus can be used in oil and water based liquids without calibration. The NGR's guided radar uses time-offlight technology to measure electromagnetic pulses. 

The time difference between the sent pulse and the reflected pulse is used to calculate the level, both as a continuous value (Analog output) and a freely positional switching point (switching output). Due to its flexible probe that can be changed or cut, it is possible to integrate the sensor quickly into any application. 

The NGR can work in deposit-forming and foaming liquids. The sensor's intuitive setup uses four buttons and a display to ensure quick and easy adaptation to the application.

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Specifications

Brand

Accuracy

  • ± 5 mm

Ambient Temperature Range

  • -20° to 80° C (-4° to 176° F)

Approvals & Certifications

  • EMC EN 61326 -1: 2006, 2004/108/EG
  • RoHS

BSP Connection

  • G 3/4”

Consumption

  • ≤ 100 mA at 24 Vdc without Output Load

Current

  • 20-20.5 mA - Upper Signal Level
  • 3.8-4 mA - Lower Signal Level

Electrical Connectors

  • M12 x 1, 5-Pin
  • M12 x 1, 8-Pin

Enclosure / Body Material

  • PBT
  • Plastic PBT

Environmental Protection

  • IP67

Hysteresis

  • 0.08” (2 mm)

Length

  • 7.87” to 78.7” (200 to 2,000 mm) - Probe Length

Load

  • < 1 H - Inductive Load
  • 100 NF - Capacitive Load

Media

  • Liquids

NPT Connection

  • 3/4” NPT Male

Operating Temperature

  • -20° to 60° C (-4° to 140° F)

Output

  • < 100 mA
  • 4-20 mA

Output Load

  • 12 V
  • 15 V
  • > 750 ohms at Uv ≥ 14 V

Pressure Range

  • bar: -1 to 10
  • kPa: -100 to 1,000
  • psi: -14.5 to 145

Process Temperature

  • -20° to 100° C (-4° to 212° F)

Repeatability

  • ≤ 0.079” (2 mm)

Resolution

  • < 0.079” (2 mm)

Response Time

  • < 400 milliseconds

Storage Temperature

  • -40° to 80° C (-40° to 176° F)

Supply Voltage

  • 0-10 V - Switching Output
  • 12-30 V

Switch Type

  • PNP / NPN

Thermal Drift

  • < 0.1 mm/K

Update Time

  • ≤ 2 seconds - Initialization Time

Wetted Materials

  • 316 Stainless Steel
  • PTFE

Documentation

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