ELAC DAZ 25-02 Digital Repeater Display

ELAC DAZ 25 Digital Repeater Display (DAZ 25-02) | P/N 57-267-8002

The ELAC DAZ 25-02 (Part Number: 57-267-8002) is an IMO-compliant, marine-grade digital depth repeater display engineered by ELAC Nautik GmbH (L-3 Communications / Wärtsilä ELAC Nautik). Serving as a secondary or auxiliary depth indicator on vessel bridge wings, chart rooms, conning consoles, and steering stands, the DAZ 25-02 decodes and renders real-time bathymetric data transmitted by primary navigation echosounders.

Built around a high-contrast 4-digit 7-segment display with adjustable dimming, the unit visualizes depth readings from 0 to 9,999 units (meters, feet, fathoms, or braza). It is engineered to endure harsh marine environments with an IP56-rated, die-cast aluminum housing, galvanically isolated data inputs, dual configurable shallow/deep alarm relays, and standard NMEA 0183 / RS-422 bidirectional data communication channels.

Model Details

• Manufacturer: ELAC Nautik GmbH (L-3 ELAC Nautik)
• Type Designation: DAZ 25-02
• Manufacturer Part Number (MPN / Sach-Nr.): 57-267-8002
• Internal Assembly PCB: NG 149 (Power supply/processing board)
• Country of Manufacture: Germany

Technical Specifications

Key Features

1. Universal Marine DC Input: Accepts wide 12 V DC to 36 V DC bus supply voltages with reverse-polarity fail-safes.
2. Multi-Standard Data Decoding: Auto-interprets NMEA 0183 (IEC 61162-1) sentences ($SDDPT,$SDDBT) as well as legacy proprietary start/stop echograph pulses.
3. Dual Depth Threshold Alarms: Field-programmable upper and lower depth limits trigger a local buzzer, flashing digits, and dry-contact alarm relay.
4. Ruggedized Bridge Housing: IP56-rated sealed die-cast enclosure engineered to resist salt spray, high vibration, and bridge humidity swings.
5. Night Navigation Dimming: Multi-step display brightness dimmer ensures zero glare on the bridge deck during night watches.

Applications

• Bridge Wing Repeater: Provides instant depth verification during complex docking, shallow river pilotage, and locking operations.
• Conning & Steering Consoles: Secondary depth visualization for helmsmen and duty officers away from the master echosounder cabinet.
• VDR Integration Hub: Repeats and passes clean serial NMEA depth telegrams onward to Voyage Data Recorders (VDR / S-VDR).
• Dredging & Survey Support Vessels: Near-instant visual reference for minimum depth clearance over seabed topography.

Frequently Asked Questions

What is the difference between the ELAC DAZ 25-01 and the DAZ 25-02?

The DAZ 25-02 is the updated variant with improved power conversion circuitry and wider NMEA 0183 baud/sentence parsing capability on the main logic board compared to earlier legacy DAZ 25-01 units. Form factor, bulkhead mounting patterns, and external terminal block pinouts remain cross-compatible.

Can the DAZ 25-02 be powered directly from an AC bridge supply?

No. The unit operates strictly on DC voltage between 12 V DC and 36 V DC. Connecting the DAZ 25-02 to a 110 V or 220 V AC source will cause catastrophic damage to the internal board. Use an approved marine 24 V DC power pack or the auxiliary 24 V output from your master echosounder cabinet.

How is the unit of measurement changed from meters to feet or fathoms?

Measurement units can be selected internally via PCB programming links/dip settings on the main processor circuit board. If you require a specific default readout unit (meters, feet, or fathoms), our workshop technicians can calibrate and label this before shipment.

Does this repeater display require an external sounder transducer?

No. The DAZ 25 is a repeater (slave) display. It does not fire a transducer directly; it requires data input from a master navigation echo sounder via serial NMEA 0183 / RS-422 or direct pulse lines.