DEIF TAP-210DG/3 INWATT Transducer for Marine Generator Load Monitoring

Manufacturer: DEIF A/S
Country of Origin: Denmark
Product Type: Watt / Power Transducer
Marine Application: Generator load measurement, switchboard power monitoring, analog kW signal transmission to PMS, automation, alarm, and monitoring systems

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Product Introduction

The product shown in your photos is a DEIF INWATT transducer, Type TAP-210DG/3. This is a marine/industrial power transducer used to measure active power (kW / watt) in AC electrical systems and convert that value into a proportional analog output such as 4–20 mA, 0–20 mA, or 0–5 / 0–20 V depending on the unit configuration.

The labels in your photos show several TAP-210DG/3 variants with different ranges and CT ratios, for example:

• Type: TAP-210DG/3
• Range examples: 0–525–1050 kW, 0–825–1650 kW
• Voltage: -/440V
• CT ratio examples: 1500/5A, 3000/5A
• Output: 4–12–20 mA or 0–5–40 V depending on the configured unit
• Supply: 440V AC, 230V AC, or 24V DC depending on the model version shown

DEIF’s official documentation confirms that the TAP-210DG/3 is a watt transducer designed for measurement of active power and conversion into a standardized analog output for remote indication or control systems.

What Is This Equipment?

The DEIF TAP-210DG/3 is an electrical measuring transducer installed in a ship’s switchboard or power monitoring system. It takes voltage and current signals from the generator / busbar system, calculates the active power (kW), and sends a proportional analog output to other equipment such as:

• Power Management Systems (PMS)
• generator load indicators
• alarm and monitoring systems
• automation PLCs / engine-room control systems
• remote analog meters or load-sharing circuits

In practical shipboard use, the TAP-210DG/3 acts as a bridge between the generator electrical system and the automation system, turning electrical load into a usable control signal.

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Main Features

The DEIF TAP-210DG/3 is widely used in marine switchboards because it offers:

• accurate active power (kW) measurement
• standard analog output such as 4–20 mA
• support for different CT ratios and measurement ranges
• compatibility with 440V marine generator systems
• compact panel / DIN-style installation for switchboard use

DEIF’s official product documentation also shows that the 210DG series was designed as a family of single-function transducers for marine electrical measurement applications.

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Main Components

A typical DEIF TAP-210DG/3 INWATT transducer includes:

• voltage input terminals
• current input / CT input terminals
• analog output terminals
• auxiliary power supply terminals
• internal signal conversion electronics
• calibration / configuration arrangement based on model version

Because different units are configured for different generator ratings, it is important to match:

• type number
• range
• CT ratio
• output signal
• supply voltage
• coupling / wiring version

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Applications

The DEIF TAP-210DG/3 is commonly used onboard for:

• diesel generator load monitoring
• switchboard power indication
• power management system input signals
• generator load-sharing / supervisory systems
• analog signal transfer from main switchboard to AMS / PMS
• engine room electrical monitoring panels

It is especially useful on vessels where older analog-based PMS and monitoring systems still depend on 4–20 mA power feedback.

Common Problems & Troubleshooting

1) No output signal

Possible causes: missing auxiliary supply, blown fuse, wrong terminal wiring, failed internal electronics.
Check: confirm the transducer supply voltage and verify the output loop wiring.

2) Wrong kW reading or unstable signal

Possible causes: incorrect CT ratio, wrong voltage connection, polarity error, loose CT terminals, incorrect coupling selection.
Check: compare the installed CT ratio and voltage wiring with the label on the transducer.

3) Output stuck at low or high value

Possible causes: output loop overload, receiving instrument fault, damaged analog output stage, incorrect load resistance.
Check: verify the connected receiving device and confirm that the output load is within the stated limit.

4) Generator load indication mismatch between PMS and panel meter

Possible causes: calibration mismatch, wrong transducer range, wrong CT ratio setting, phase / wiring error.
Check: compare actual switchboard load with transducer output scaling and system configuration.

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Maintenance Tips

To keep the DEIF TAP-210DG/3 reliable onboard:

• keep the switchboard dry, clean, and vibration-protected
• check terminal tightness during electrical maintenance
• verify CT wiring polarity and voltage input connections
• confirm the analog receiving device is healthy
• record the exact range, CT ratio, output type, and supply voltage before replacement
• never replace a unit by type only; always match the full label data

This is especially important because the photos show multiple TAP-210DG/3 units with different CT ratios, output types, and supply voltages.

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Why Ships Still Use This Equipment

Ships still use the DEIF TAP-210DG/3 because many marine switchboards and PMS systems were built around reliable analog transducers for power measurement. Even when the generator is healthy, a failed watt transducer can cause incorrect PMS indication, wrong load display, or automation signal problems. Replacing the transducer is often much easier and more economical than redesigning the whole monitoring system.

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Frequently Asked Questions (FAQ)

What does the DEIF TAP-210DG/3 measure?
It measures active power (kW / watt) in an AC system and converts it into an analog output.

Is it used on marine generators?
Yes. It is commonly used for generator load monitoring and switchboard power feedback.

Can two TAP-210DG/3 units have different specifications?
Yes. The same type family can have different ranges, CT ratios, output signals, and supply voltages.

What should be sent before ordering?
Please send a clear photo of the label showing:

• type
• range
• CT ratio
• output
• supply voltage
• coupling / order number if visible

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Short Product Description

The DEIF TAP-210DG/3 INWATT transducer is a marine power-measurement device used to convert generator active power into an analog signal for PMS, alarm, and monitoring systems. It is widely installed in ship switchboards for generator load indication, power monitoring, and automation signal transmission, and remains an important spare part for older marine electrical systems.

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