Description
DEIF
TYPE: CSQ-3 MARINE
MULTI FUNCTION SYNCHROSCOPE METER
BUSBAR INPUT: 415V, 0,5MA, 50/60HZ
GEN INPUT: 415V, <20MA, 50/60HZ
SYNC OUTPUT: 250 VAC / 24VDC, 8A RES
2034120067 A
The DEIF CSQ-3 Marine is a multi-function synchroscope meter engineered for generator synchronisation applications within marine power control systems. Designed to monitor and compare busbar and incoming generator parameters, this instrument provides operators with accurate real-time synchronisation data, enabling safe and controlled paralleling of generators aboard vessels. As a critical component in marine power management, it plays a direct role in protecting switchboard equipment, maintaining grid stability, and ensuring uninterrupted power distribution throughout the vessel. The CSQ-3 Marine fits within the broader category of Marine Control Systems, where reliable synchronisation instrumentation is essential to operational safety and regulatory compliance.
Key Features
✓ Multi-function synchroscope metering with dedicated busbar input at 415V, 0.5mA, 50/60Hz and generator input at 415V, <20mA, 50/60Hz for precise phase and frequency comparison.
✓ Sync output rated at 250 VAC / 24VDC, 8A resistive, providing flexible interfacing with downstream synchronising relays, controllers, or automatic paralleling systems.
✓ Dual-frequency compatibility at 50Hz and 60Hz makes the unit suitable for international vessel deployments and diverse shipboard power system configurations.
✓ Designed for marine switchboard integration, the CSQ-3 Marine is intended for panel-mount installation in main switchboards, generator control panels, or power management system enclosures — subject to confirmation of panel cutout and mounting arrangement.
✓ As a DEIF product, the CSQ-3 Marine is part of a well-established marine power instrumentation range, supporting straightforward replacement and retrofit within existing DEIF-based control architectures where compatible.
Marine Applications
✓ Merchant vessels and bulk carriers utilising multi-generator power plants where manual or semi-automatic synchronisation at the main switchboard is required.
✓ Offshore support vessels and platform supply vessels operating complex power management systems that demand accurate generator paralleling instrumentation.
✓ Tankers and gas carriers where safe, controlled generator synchronisation is critical to maintaining stable onboard electrical distribution during cargo and transit operations.
✓ Passenger ferries, ro-ro vessels, and cruise ships requiring reliable switchboard metering for frequent generator changeovers and load transfers.
✓ Naval auxiliaries, dredgers, and specialist work vessels where marine-grade synchronisation instruments are integrated into custom power control and automation systems.
Why Marine Engineers Choose
Marine engineers and electrical officers specify the DEIF CSQ-3 Marine for its purpose-built marine design, clear synchronisation metering, and compatibility with DEIF power management ecosystems — reducing integration complexity during both planned maintenance and emergency replacement scenarios.
Ideal For
Merchant fleet operators, offshore vessel owners, shipyards, and marine electrical contractors maintaining or upgrading generator synchronisation and power control panels across a wide range of commercial, offshore, and specialist vessel types.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard diagnostics, installation guidance, and commissioning of this synchronisation meter within existing power control systems. Retrofit and integration support into DEIF or third-party marine switchboard configurations can be discussed, subject to confirmation of system compatibility. To confirm suitability for your application, buyers are encouraged to share nameplate photographs, the original part number, panel arrangement drawings, switchboard or power management system model and version, vessel name, IMO number, and a clear description of the intended installation scope. All compatibility assessments are subject to confirmation based on the information provided.




