Description
YDK Tech (Previous Yokogawa) Electromagnetic Log EML500 is an Electromagnetic Speed Log designed for general merchant vessels; supporting both flush-mountable and dual-axis sensors.
Features
- Preamp built into the sensor for stable & long-distance transmission (max.300m long) of current signal
- Single-axis sensor (fore-and-aft)
- Optional dual-axis sensor measures longitudinal & traverse speed
- Can receive a backup signal (NMEA-0183) from external speed sensors (i.e. GPS receiver)
- Sea Valves available for installing sensors on the bottom of the hull
The recommended replacement and upgrade for the EML500 is the YDK EML900 Electromagnetic Speed Log
Technical Specifications & Measurement Principles
| Specification | Parameter |
|---|---|
| Speed Range | -10.0 to +40.0 knots speed through water (STW) |
| Measurement Principle | Electromagnetic induction via high-frequency alternating magnetic field |
| Sensor Architecture | Flat-type flush mount sensor (eliminates projecting probes and hull fouling risks) |
| Outputs | NMEA 0183 ($–VBW, $–VLW) and 200/400 pulses per nautical mile |
| Power Requirements | 100V–115V AC or 200V–230V AC, 50/60 Hz, single phase |
| Classification | Meets IMO A.824(19), MSC.96(72), and IEC 61023 performance standards |
The YDK Technologies (Yokogawa) EML500 Electromagnetic Speed Log measures accurate vessel speed and distance through water without mechanical impellers or projecting sensors susceptible to damage from mooring lines or floating debris.
Technical Specifications & Operational Standards
Review certified engineering parameters, electrical inputs, data protocols, and Class compliance standards for this unit:
| OEM Brand / Manufacturer | YDK Technologies (Yokogawa) |
|---|---|
| Model / Part Number | YDKEML500 |
| Equipment Classification | Commercial Marine Navigation & Communication Spares |
| Operating Conditions | -15°C to +55°C Industrial Marine Deck / Wheelhouse Environment |
| Quality Standard | OEM Marine Grade, Factory Bench Verified Ahead of Dispatch |
| Stock & Port Logistics | Ready Stock for Immediate Vessel Supply across Mumbai, JNPT, Kandla, Cochin, Chennai & Visakhapatnam |
| In-the-Box Documentation | OEM Certificate of Conformance, Wiring Schematics, Installation & Operating Manual |
Seanav Marine maintains bonded warehouse spare parts inventory and factory-trained technical riding squads across all major Indian ports. Immediate dispatch available to vessel agents, ship chandlers, and technical managers at Mumbai, JNPT (Nhava Sheva), Kandla, Mundra, Cochin, Chennai, and Visakhapatnam (view all 400+ ports →).
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Manufacturer documentation and compatibility
Select the exact model, hardware generation and document revision. Before ordering, confirm the equipment interfaces, power requirements, required approvals and included accessories against the applicable manufacturer documentation. Send nameplate photographs, the installed equipment details, vessel name, port and ETA with your enquiry.