WOODWARD UMT 1 Measuring Transducer Specification
Device Identification:
PART NO: 8444-1002 G
REV: UMT1
MODEL: UMT115B/A3SU
MANUFACTURER: WOODWARD (Stuttgart, Germany)
Electrical Measurement & Input Parameters:
Umeas (IEC): 57/100(120)V AC
Umeas (UL): 150V AC
I1/gen: 5A AC
fN: 50/60Hz
Auxiliary Power & Environmental Parameters:
Uaux: 24V DC
Iaux: 0.5A DC
Tambient: -20 TO 70°C
8444-1002 WOODWARD Safety & Certification Marks:
Housing: TYPE 1
Certifications: cULus LISTED (Ind. Cont. Eq. 2FD9, File No. E231544) / CE / C-TICK (N13246) / GOST-R (АИ30)
WOODWARD UMT 1 Measuring Transducer Key Function
True RMS Electrical Measurement: The 8444-1002 provides highly accurate, true root-mean-square (RMS) measurement for three-phase AC electrical parameters including voltage, current, and frequency.
Signal Transduction & Isolation: The WOODWARD 8444-1002 converts high-voltage and high-current inputs from power generators or mains into standardized, isolated analog/digital outputs for upstream control systems.
Generator & Grid Monitoring: Specialized for real-time monitoring of generator outputs and mains power quality, the 8444-1002 ensures precise grid synchronization and system stability.
Data Telemetry: Features integrated analog channels and an RS-485 communication interface, allowing the 8444-1002 to transmit real-time telemetry data to PLCs or SCADA systems.
Integrated Local Display: The 8444-1002 is equipped with a built-in LCD interface for real-time on-site diagnostics, parameter configuration, and value reading.
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Inside Spare Center Services
Emergency Supply: Delivers rare, discontinued, and surplus industrial automation components immediately during critical plant downtimes.
Component-Level Repair: Uses specialized engineers to repair damaged circuit boards and perform multi-day load testing under simulated conditions.
12-Month Warranty: Covers hardware parts with a strict, non-negotiable 12-month warranty period to guarantee performance.
WOODWARD UMT 1 Measuring Transducer FAQ
Q1: What is the 8444-1002 WOODWARD and what is its primary application?
A1: The 8444-1002 WOODWARD (part of the UMT 1 series) is an industrial-grade electrical measuring transducer. The 8444-1002 WOODWARD is primarily utilized in power generator sets, low-voltage distribution grids, and electrical control systems to monitor three-phase AC parameters such as voltage, current, and frequency in real time, converting high-power signals into standardized outputs for upstream controllers.
A1: The 8444-1002 WOODWARD (part of the UMT 1 series) is an industrial-grade electrical measuring transducer. The 8444-1002 WOODWARD is primarily utilized in power generator sets, low-voltage distribution grids, and electrical control systems to monitor three-phase AC parameters such as voltage, current, and frequency in real time, converting high-power signals into standardized outputs for upstream controllers.
Q2: What is the maximum voltage input allowed for the 8444-1002 WOODWARD?
A2: According to the official specifications, the 8444-1002 WOODWARD has an IEC-rated nominal measuring voltage (Umeas) of 57/100(120)V AC. Under UL certification compliance standards, the 8444-1002 WOODWARD can safely withstand a maximum measurement input voltage of up to 150V AC.
A2: According to the official specifications, the 8444-1002 WOODWARD has an IEC-rated nominal measuring voltage (Umeas) of 57/100(120)V AC. Under UL certification compliance standards, the 8444-1002 WOODWARD can safely withstand a maximum measurement input voltage of up to 150V AC.
Q3: What critical safety precautions must be taken when disconnecting or replacing the 8444-1002 WOODWARD?
A3: Before unplugging or disconnecting any terminal connections from the WOODWARD 8444-1002, you must apply a short circuit to the external generator or mains Current Transformer (CT) terminals. Disconnecting the 8444-1002 WOODWARD while the CT secondary circuit is open will generate dangerously high voltages, as emphasized by the prominent yellow warning label on the device housing.
A3: Before unplugging or disconnecting any terminal connections from the WOODWARD 8444-1002, you must apply a short circuit to the external generator or mains Current Transformer (CT) terminals. Disconnecting the 8444-1002 WOODWARD while the CT secondary circuit is open will generate dangerously high voltages, as emphasized by the prominent yellow warning label on the device housing.
Q4: What are the auxiliary power supply requirements for the Woodward 8444-1002?
A4: The Woodward 8444-1002 requires a low-voltage DC power source for its operation, with a rated auxiliary supply voltage (Uaux) of 24V DC. When planning the power distribution circuit, ensure the system can supply the Woodward 8444-1002 with its maximum rated consumption current of 0.5A DC.
A4: The Woodward 8444-1002 requires a low-voltage DC power source for its operation, with a rated auxiliary supply voltage (Uaux) of 24V DC. When planning the power distribution circuit, ensure the system can supply the Woodward 8444-1002 with its maximum rated consumption current of 0.5A DC.
Q5: Does the Woodward 8444-1002 support local data visualization and configuration?
A5: Yes, the Woodward 8444-1002 features an integrated front-panel user interface with a two-line, 16-character liquid crystal display (LCD). This screen allows field operators to directly read real-time electrical telemetry data measured by the Woodward 8444-1002, perform parameter configurations, and execute basic system diagnostics.
A5: Yes, the Woodward 8444-1002 features an integrated front-panel user interface with a two-line, 16-character liquid crystal display (LCD). This screen allows field operators to directly read real-time electrical telemetry data measured by the Woodward 8444-1002, perform parameter configurations, and execute basic system diagnostics.
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