Delta Mobrey D21 Series Pressure Transmitter

Introduction

The Delta Mobrey D21 SMART Pressure Transmitters are suitable for the measurement of pressure, underpressure, and absolute pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specifically selected type of manometric liquid. The casing is made of cast aluminium alloy or 316 stainless steel with degree of protection IP66/67. The design of the casing enables the use of a local display, rotation of the display by 90ยฐ and a choice of cable direction.

ATEX certified for use in Zone 0/20 and Zone 1/21 Hazardous Areas and available with 316L, Hastelloy C 276 or Gold wetted parts materials, the D21 SMART Pressure Transmitters are suitable for use in a wide range of applications. One unique feature of all models in the D-Series is the backlit LCD display which facilitates local monitoring in light deficient environments by enhancing display visibility.

The D-Series can also be supplied with Deltaโ€™s user-friendly โ€˜D-Softโ€™ remote communication software.  Using the HART communication protocol, this software provides users with a convenient way to calibrate, configure and monitor the instrument by connecting it to a PC via Deltaโ€™s USB/Bluetooth to HART converter.

Delta Mobrey D21 Features:

  • ATEX โ€“ Flameproof and Intrinsically Safe
    IECEx โ€“ Flameproof and Intrinsically Safe
  • SIL 2 certificate
  • Compliant to NAMUR NE-43
  • High accuracy ยฑ0.075% (better accuracy upon request)
  • Fully HART ยฎ compatible
  • Static pressure limit up to 1200 bar
  • 4-20mA, 0-20mA or 0-5mA analogue with digital communications
  • Gold (Au) plated diaphragm option
  • Hastelloy C276 wetted part option
  • Programmable range, zero shift, characteristic and damping ratio with local panel keys
  • Lightweight
  • Linearisation of output signal on 20 point curve
  • Write protection option through DKAP-03 communicator, โ€˜D-Softโ€™ program or software using library EDDL

Advantages:

  • Cost-Effective
    • The D-Series offers customers a high specification and comprehensive product range at very competitive prices
  • Backlit LCD Display
    • A backlit display facilitates local monitoring in light deficient environments by enhancing display visibility
  • Easily Configurable
    • The D-Series transmitters are easily set up and configured either using a standard HART communicator or via Deltaโ€™s user-friendly โ€˜D-Softโ€™ communication software
  • Accuracy
    • The D-Series transmitters have a standard accuracy of 0.075% with even better accuracy being available upon request

Delta Mobrey D21 Application:

The D Series SMART Pressure Transmitter is suitable for a wide range of applications in:

  • Oil & Gas
  • Chemical
  • Petrochemical
  • Power

The choice of models available ensures that the Delta Transmitter is suitable for use in:

  • Corrosive atmospheres
  • Resistant to chemical attack

Delta Mobrey D21 Specification:

Accuracy

  • ? ยฑ0 .075% of the calibrated range
  • (?ยฑ0.1% for range B1)
  • Special version:  ?ยฑ0.05% of the calibrated range

Long-term stability

  • ? accuracy for 3 years
  • (for the nominal measuring range) ?2x accuracy for 5 years
  • 20 version: ? accuracy for 6 years

Thermal error

  • < ยฑ0.05% (FSO) / 10ยฐC
  • (0.1% for ranges A0, A2, B1)
  • max. ยฑ0.25% (FSO) in the whole compensation range
  • (0.4% for ranges A0, A2, B1)

Thermal compensation range

  • -25โ€ฆ80ยฐC
  • -40 โ€ฆ80ยฐC โ€“ special version
  • Response time: 16โ€ฆ480ms(programmable)
  • Additional electronic damping: 0โ€ฆ60 s
  • Error due to supply voltage changes: 0.002% (FSO) / V

Electrical parameters 

Power supply:

  • 10โ€ฆ55 VDC / Exia:10,.5โ€ฆ30 VDC / Exd:13.5(10.5)โ€ฆ45 VDC
  • SIL2: 15โ€ฆ45 VDC / SIL2 Exia: 16โ€ฆ28 VDC

Output signal

  • 4โ€ฆ20 mA, two wire transmission
  • Special Version: 0โ€ฆ20 / 0โ€ฆ5 / 4โ€ฆ20 [mA]
  • Resistance required: min. 240? for communication
  • Materials
  • Wetted parts: 316LSS, Hastelloy C 276, Au
  • Diaphragms
  • Casing: Aluminium, 316SS
  • Material of window: Polycarbonate glass, hardened glass

Download Data Sheet: Pressure Transmitter D21 Series

Ref: delta-mobrey.com

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