Danfoss EMP 2 Pressure Transmitter 084G2111 (0-16 Bar)

Danfoss EMP 2 Pressure Transmitter 084G2111 (0–16 Bar Gauge)

The Danfoss EMP 2 (Code No. 084G2111, Specification Key: EMP 2-2211-F6CD24-2) is a heavy-duty, marine-type-approved pressure transmitter engineered for demanding monitoring, alarm, and process control duties in shipboard machinery spaces and harsh industrial plants.

Operating on a piezoresistive measuring principle with zero and span potentiometer field adjustment, this unit converts gauge pressures from 0 to 16 bar (0 to 232.06 psi) into a standardized 4–20 mA loop-powered output. Built inside a rugged, epoxy-coated die-cast aluminum enclosure with a G 1/2 A (with internal G 1/4 female thread) process port, the 084G2111 withstands high-frequency mechanical vibration, hydraulic pressure surges, thermal cycling, and aggressive saline environments.

Technical Specifications: Pressure Transmitter 084G2111

Key Features

1. Full Marine Type Classification: Type-approved by major IACS member societies (DNV, LR, ABS, BV, CCS, RINA, KR, ClassNK) for engine room, steering gear, and deck machinery installations.
2. Field-Adjustable Zero & Span: Accessible internal calibration potentiometers allow recalibration and zero-point trimming on-site without specialized workshop tools.
3. Heavy-Duty IP65/IP67 Die-Cast Housing: Robust seaworthy aluminum casing protects electronics against moisture ingress, salt spray, and electromagnetic interference (EMI).
4. High Shock & Vibration Resistance: Engineered to maintain accuracy under continuous engine vibration profiles up to 4g (5–200 Hz).
5. Dual-Thread Process Connection: G 1/2 Male external combined with G 1/4 Female internal connection simplifies retrofit and adaptor-free manifold mounting.

Industrial & Marine Applications

• Main & Auxiliary Marine Diesel Engines: Fuel oil delivery line pressure, lubricating oil manifold pressure, jacket cooling water pressure, and charge air pressure circuits.
• Shipboard Auxiliary Systems: Starting air receivers (up to 16 bar), marine boiler feed lines, fire main system monitoring, and sanitary water pressure sets.
• Separators & Purifiers: Heavy Fuel Oil (HFO) and Marine Gas Oil (MGO) booster modules and centrifuge feed circuits.
• Marine Hydraulic Systems: Steering gear return and feed lines, deck cranes, and anchor windlass pilot line monitoring.
• Industrial Plant Automation: Water treatment stations, compressed air grids, industrial chillers, and steam condensate return lines.

Compatible Systems & Machinery

• Marine Diesel Engines: MAN Energy Solutions (B&W 2-stroke/4-stroke), Wärtsilä (Sulzer), WinGD, Caterpillar Marine/MaK, Yanmar Marine, Daihatsu.
• Automation & Alarm Monitoring Systems (AMS): Kongsberg Maritime (K-Chief / AutoChief), Valmet DNA, ABB Marine Ability, Siemens SIMATIC S7 marine PLC racks, Praxis Automation.
• Purifier Modules: Alfa Laval (S/P Series), GEA Westfalia separators.

Cross-Reference & Equivalent Part Numbers

• Danfoss Part Numbers: 084G2111, 084G211166, 084G2100 series (0–16 bar range variants).
• Specification Code: EMP 2-2211-F6CD24-2.
• Alternative Sensor Replacements: Danfoss MBS 3100 / MBS 33M (compact transmitter alternatives, requiring mechanical bracket modifications).

Frequently Asked Questions

What is the pressure range of the Danfoss 084G2111?

The Danfoss 084G2111 EMP 2 transmitter measures relative (gauge) pressure from 0 to 16 bar (0 to 232 psi). It can tolerate an overload pressure up to 32 bar without recalibration or damage.

What supply voltage is required for Danfoss EMP 2 pressure transmitters?

The unit operates on a standard 2-wire loop power supply ranging from 12 V DC to 32 V DC, with nominal operation at 24 V DC.

Is the Danfoss EMP 2 084G2111 suitable for marine class surveys?

Yes. The EMP 2 series holds type approval certificates from major classification societies including DNV, Lloyd’s Register (LR), American Bureau of Shipping (ABS), Bureau Veritas (BV), ClassNK, and RINA.

How do you wire the 2-wire 4-20mA loop on the Danfoss 084G2111?

Inside the Pg 13.5 electrical housing, connect the +24V DC positive supply to Terminal ‘P’ and the negative signal/return line to Terminal ‘N’.

Can the Danfoss 084G2111 be calibrated on-site?

Yes. Unlike sealed fixed-range sensors, the EMP 2 transmitter features internal zero and span potentiometers beneath the enclosure lid, permitting precise on-site calibration and range adjustments against a deadweight tester or pressure calibrator.