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 90° 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 Delta’s user-friendly ‘D-Soft’ 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 Delta’s USB/Bluetooth to HART converter.
Delta Mobrey D21 Features:
- ATEX – Flameproof and Intrinsically Safe
IECEx – Flameproof and Intrinsically Safe - SIL 2 certificate
- Compliant to NAMUR NE-43
- High accuracy ±0.075% (better accuracy upon request)
- Fully HART ® 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, ‘D-Soft’ 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 Delta’s user-friendly ‘D-Soft’ 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
- ? ±0 .075% of the calibrated range
- (?±0.1% for range B1)
- Special version: ?±0.05% 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
- < ±0.05% (FSO) / 10°C
- (0.1% for ranges A0, A2, B1)
- max. ±0.25% (FSO) in the whole compensation range
- (0.4% for ranges A0, A2, B1)
Thermal compensation range
- -25…80°C
- -40 …80°C – special version
- Response time: 16…480ms(programmable)
- Additional electronic damping: 0…60 s
- Error due to supply voltage changes: 0.002% (FSO) / V
Electrical parameters
Power supply:
- 10…55 VDC / Exia:10,.5…30 VDC / Exd:13.5(10.5)…45 VDC
- SIL2: 15…45 VDC / SIL2 Exia: 16…28 VDC
Output signal
- 4…20 mA, two wire transmission
- Special Version: 0…20 / 0…5 / 4…20 [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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