RAVEN-EYE® ATEX Technical Specifications

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RAVEN-EYE® ATEX Technical Specifications

RAVEN-EYE® ATEX Technical Specifications

The RAVEN-EYE® ATEX is a universal non-contact level/velocity flow sensor that can be connected to the RTQ-2000 or the IFQ MONITOR. The use of a barrier box between the IFQ MONITORTM and the RAVEN-EYE® ATEX is mandatory to comply with electrical parameters.

Velocity Measurement

  • Method Radar
  • Range ±0,15 to ±9 m/s (bi-directional)
  • Accuracy ±0,5%, + zero stability
  • Zero Stability ±0,02 m/s
  • Resolution 0,001 m/s

Optional Combined Level Measurement (Radar)

  • Method Radar
  • Range 0,01 to 15 m
  • Accuracy ±2 mm of reading
  • Resolution 1 mm
  • Mounting Separate
  • Approval CE, ATEX (II 1G, 1/2G, 2G Ex ia IIC T6 Ga, Ga/Gb, Gb) – barrier box needed

Optional Separate Level Measurement

  • Method: Any 4-20 mA loop powered sensor fulfilling the necessary ATEX requirements

Flow Measurement

  • Method Conversion from surface velocity measurement to average velocity based on patent pending selflearning model using velocity distribution measurements.
  • Conversion of water level and pipe size to fluid area. Multiplication of fluid area by average velocity to obtain the flow rate.
  • Conversion Accuracy ±5% of reading Assumes pipe is 0 to 90% full

Communication

  • RS-485 communications port with Modbus ASCII slave communication protocol

Power Supply

  • Supplied by IFQ MONITORTM for ATEX sensors via ATEX barrier or RTQ-2000

Safety parameters

  • Power supply RS485
  • Ui = 8,7 V Ui = 8,7 V Uo = 5,88 V
  • Ii = 0,73 A Li = 0,73 A Lo = 0,24 A
  • Pi = 1,6 W Pi = 1,6 W Po = 35,21 mW
  • Ci = 10,6 µF Ci = 0 µF Co = 24, 5 µF
  • Li = 4,7 µH Li = 0 µH Lo = 30 µH
  • Lo/Ro = 3,99 µH/Ohm

Internal Temperature Measurement

  • Method Digital sensor
  • Range -40º to 80º C

Internal Humidity Measurement

  • Method Digital sensor
  • Range 0 to 100 %

Internal Pressure Measurement

  • Method Digital sensor
  • Range 0 to1500 HPa

Material & Dimensions

  • Enclosure Polyurethane (PU), PU ESD-dissipative paint
  • Dimensions 422 mm L, 140 mm W, 183 mm H
  • Weight 3,85 Kg (without the cable, level sensor and mounting accessories)
  • Protection rate IP68

Environmental Conditions

  • Operating temperature range -20° to 50° C
  • Storage temperature range -30º to 60º C

Certifications

  • CE
  • ATEX ATEX Directive 94/9/EC
  • EN60079-0 : 2012 + A11 : 2013 (CEI 60079-0 : 2011)
  • EN60079-11 : 2012 (CEI 60079-11 : 2011)
  • Marking: II 2 G Ex ib IIB T4 Gb

Sensor Cable

  • Material Polyurethane jacketed
  • Length Standard: 10 m
  • Optional lengths on request