Description
WOODWARD
UMT 1
MEASURING TRANSDUCER
PART NO.: 8444-1019
REV.: G
UMT115B/A6
UAUX: 24V DC
UMEAS(IEC): 57/100(120)V AC
UMEAS(UL): 150V AC
I1/GEN: 5A AC
FN: 50/60HZ
TAMB, OPEN: -20 TO 70C
The Woodward UMT 1 Measuring Transducer (part number 8444-1019, Revision G) is a precision signal conditioning device designed to measure and convert AC voltage and current inputs into standardised output signals for use within marine control and monitoring systems. Operating on a 24V DC auxiliary supply, this transducer accepts IEC-rated measurement voltages up to 57/100(120)V AC and UL-rated inputs up to 150V AC, with a generator current input of 5A AC. Its wide ambient temperature range of -20 to 70°C makes it well suited to the demanding environments encountered in marine electrical and power management installations.
Key Features
✓ Measures AC voltage and current signals with auxiliary supply of 24V DC, supporting IEC measurement voltages of 57/100(120)V AC and UL-rated 150V AC, with 5A AC generator current input and 50/60 Hz frequency compatibility.
✓ Wide operating temperature range of -20 to 70°C (ambient, open installation) ensures reliable performance across engine rooms, switchboard rooms, and other thermally variable shipboard environments.
✓ Compatible with Woodward marine power management and control architectures; intended for integration within generator monitoring, load sharing, and electrical distribution control panels — subject to confirmation against system configuration.
✓ Compact transducer format suited for panel or DIN-rail mounting within enclosed electrical cabinets; installation location and mounting arrangement should be confirmed against vessel-specific drawings and switchboard layout.
✓ Replacement of this transducer should be carried out with reference to the original revision level (Rev G) and variant designation (UMT115B/A6) to ensure signal compatibility and correct calibration within the host control system.
Marine Applications
✓ Generator set monitoring and protection systems aboard merchant vessels, where accurate voltage and current measurement is essential for load sharing and fault detection.
✓ Marine power management systems (PMS) requiring transduced analogue signals from electrical distribution boards for automated control and alarming.
✓ Offshore platform and vessel electrical switchboards integrating Woodward control equipment for generator paralleling and power distribution management.
✓ Cruise ships, ferries, and RoRo vessels with complex electrical plant arrangements where precise measurement transducers form a critical part of the automation and safety monitoring layer.
✓ Retrofit and upgrade projects on existing Woodward-equipped tonnage requiring like-for-like replacement of ageing or failed measuring transducers within the control system architecture.
Why Marine Engineers Choose
The Woodward UMT 1 Measuring Transducer is a trusted component within Woodward’s marine control ecosystem, offering reliable signal conversion across a broad voltage and frequency range. Its defined operating envelope and clear variant designation make it straightforward to specify for like-for-like replacement, reducing system downtime and maintaining the integrity of onboard power monitoring and control functions.
Ideal For
Merchant cargo vessels, tankers, bulk carriers, offshore support vessels, cruise ships, ferries, and any commercial or industrial marine platform operating Woodward-based power management or generator control systems requiring measuring transducer replacement or system expansion.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard diagnostics, bench testing, commissioning, and integration of this transducer within existing Woodward control systems. Retrofit and upgrade guidance can also be provided subject to confirmation of the host system configuration. To confirm compatibility and suitability, buyers are advised to share nameplate photographs, the full part number and revision level, relevant system drawings or wiring diagrams, the control panel or PMS model and software version, and vessel name or IMO number where applicable. All compatibility assessments are subject to confirmation based on the information provided.
