Honeywell MGG18F Series Pressure Transducers — MGG18F-040PA11LS5AAA-X-YA

Technical Dossier

Product Details And Specifications

Honeywell MGG18F Series: Comprehensive Module Range and Technical Overview

The Honeywell MGG18F series represents a mature line of industrial-grade pressure transducers engineered for continuous-duty measurement in demanding process environments. These units are deployed across global heavy industry sectors including petrochemical refineries, offshore oil & gas platforms, nuclear power generation facilities, and large-scale chemical processing plants. The MGG18F platform is characterized by its stainless steel wetted parts, ratiometric analog output, and broad pressure range configurability — attributes that made it a standard-specification component in distributed control system (DCS) instrumentation loops throughout the 1990s and 2000s. Its installed base remains substantial, driving sustained demand for replacement units and lifecycle extension support.

The Evolution of MGG18F Architecture

The MGG18F series was developed as part of Honeywell's Sensotec-lineage sensing portfolio, targeting OEM integration and panel-mount process instrumentation. Early variants used a piezoresistive sensing element with a 4-wire bridge configuration, delivering a ratiometric millivolt output requiring external signal conditioning. Subsequent revisions introduced integrated ASIC-based amplification, enabling direct 4–20 mA two-wire loop-powered output — a critical compatibility requirement for legacy HART-based DCS field instrument loops.

The series spans absolute (A), gauge (G), and compound pressure measurement modes. Pressure ranges extend from 15 PSI full-scale to 5,000 PSI full-scale, with the range code embedded in the part number (e.g., 040 = 40 PSI, 100 = 100 PSI, 500 = 500 PSI). Electrical termination options evolved from bare-lead configurations to Deutsch DT-series connectors and extended-cable assemblies (denoted by the -X-YA suffix on the MGG18F-040PA11LS5AAA-X-YA), addressing installation requirements in junction-box-free field mounting scenarios.

Compatibility considerations: MGG18F units with millivolt output are not directly interchangeable with 4–20 mA variants without signal conditioner substitution. Process connection threads (1/4-18 NPT standard; G1/4 metric variants available) must be verified against manifold specifications before replacement. Units produced prior to 2005 may use an older ASIC revision with a narrower compensated temperature range (−10°C to +85°C vs. the later −40°C to +125°C specification).

MGG18F Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked configurations within the Honeywell MGG18F series. Part numbers are structured as: MGG18F-[Range][Pressure Type][Output][Connector][Options].

Gauge Pressure — 4–20 mA Output:

• MGG18F-015PA11LS5AAA: 15 PSI gauge, 4–20 mA, 1/4-18 NPT, stainless wetted, −40°C to +125°C
• MGG18F-030PA11LS5AAA: 30 PSI gauge, 4–20 mA, 1/4-18 NPT, stainless wetted, standard cable
• MGG18F-040PA11LS5AAA: 40 PSI gauge, 4–20 mA, 1/4-18 NPT, stainless wetted, standard cable
• MGG18F-040PA11LS5AAA-X-YA: 40 PSI gauge, 4–20 mA, 1/4-18 NPT, extended cable assembly, field-mount variant
• MGG18F-060PA11LS5AAA: 60 PSI gauge, 4–20 mA, 1/4-18 NPT, stainless wetted
• MGG18F-100PA11LS5AAA: 100 PSI gauge, 4–20 mA, 1/4-18 NPT, general process measurement
• MGG18F-150PA11LS5AAA: 150 PSI gauge, 4–20 mA, 1/4-18 NPT, mid-range process lines
• MGG18F-200PA11LS5AAA: 200 PSI gauge, 4–20 mA, 1/4-18 NPT, hydraulic system monitoring
• MGG18F-300PA11LS5AAA: 300 PSI gauge, 4–20 mA, 1/4-18 NPT, high-pressure process loops
• MGG18F-500PA11LS5AAA: 500 PSI gauge, 4–20 mA, 1/4-18 NPT, compressor discharge measurement

Absolute Pressure — 4–20 mA Output:

• MGG18F-015AA11LS5AAA: 15 PSIA absolute, 4–20 mA, vacuum-referenced process measurement
• MGG18F-030AA11LS5AAA: 30 PSIA absolute, 4–20 mA, low-pressure absolute sensing
• MGG18F-100AA11LS5AAA: 100 PSIA absolute, 4–20 mA, tank pressure monitoring
• MGG18F-300AA11LS5AAA: 300 PSIA absolute, 4–20 mA, boiler and steam system measurement

Millivolt Output (Bridge) — Signal Conditioner Required:

• MGG18F-100PB11LS5AAA: 100 PSI gauge, mV bridge output, OEM integration, requires external amplifier
• MGG18F-500PB11LS5AAA: 500 PSI gauge, mV bridge output, legacy DCS analog input card compatible

Sourcing Hard-to-Find & Obsolete MGG18F Parts

The MGG18F series has entered the end-of-life phase of its product lifecycle. Honeywell has transitioned current pressure transducer offerings to the PX2 and PX3 series platforms, which are not pin-compatible or dimensionally interchangeable with MGG18F units without process connection adapters and signal loop reconfiguration.

DriveKNMS maintains a dedicated inventory of MGG18F units sourced through authorized surplus channels, decommissioned plant asset recovery, and verified OEM overstock. All units are stored in climate-controlled conditions and catalogued by date code and revision level. For facilities operating under long-term maintenance contracts (LTMA) or operating under regulatory constraints that prohibit like-for-like substitution without re-qualification, DriveKNMS provides documentation packages including original Honeywell calibration certificates, material traceability records, and shelf-life assessments.

Customers requiring cross-reference analysis between obsolete MGG18F configurations and current Honeywell PX2/PX3 equivalents can request a formal substitution report. DriveKNMS engineers will identify electrical, mechanical, and performance delta between the original and proposed replacement unit.

Quality Control for the MGG18F Range

Each MGG18F unit processed through DriveKNMS undergoes a structured inspection and functional verification protocol prior to dispatch:

• Visual inspection: Wetted surface condition, connector integrity, cable jacket assessment, label legibility, and date code verification.
• Electrical continuity: Bridge resistance measurement (millivolt variants) and loop resistance verification (4–20 mA variants) against Honeywell published specifications.
• Pressure functional test: Units are pressurized to rated full-scale using a calibrated dead-weight tester or digital pressure comparator. Output linearity, zero offset, and span are recorded at 0%, 25%, 50%, 75%, and 100% of full-scale pressure.
• Thermal compensation check: Where test equipment permits, output stability is verified across the compensated temperature range.
• Output signal verification: 4–20 mA units are verified for correct zero (4 mA at 0 PSI) and span (20 mA at full-scale) against a calibrated loop calibrator.
• Documentation: A test record is issued with each unit, including as-found and as-left readings, test equipment calibration traceability, and inspector identification.