Description
DEIF
TYPE: DLQ192-BC-NB
RPM METER
0 TO 100 RPM ASTERN/AHEAD
ORDER.NO: 62167-1
ADJ: ±10%
INPUT: 2,5-0-2,5 mA
LOAD <115R
ILLUM: 24VAC/DC
The DEIF DLQ192-BC-NB is a panel-mounted RPM meter designed to display engine or shaft speed across a range of 0 to 100 RPM, with bidirectional indication covering both ahead and astern operation. Operating within a marine control system environment, this instrument accepts a 2.5–0–2.5 mA analogue input signal and features built-in illumination powered by 24V AC or DC, making it suitable for low-light bridge and control room installations. Accurate RPM indication is critical for engine management, manoeuvring control, and safe vessel operation, particularly during port approaches and dynamic positioning situations.
Key Features
✓ Bidirectional RPM display covering 0 to 100 RPM ahead and astern, providing clear real-time shaft or engine speed indication at the operator panel.
✓ Analogue input rated at 2.5–0–2.5 mA with a load impedance of less than 115 Ω and an adjustable accuracy of ±10%, as specified in the original product data.
✓ Panel illumination powered by 24V AC/DC, ensuring readability in dimly lit control rooms, engine control rooms, or wheelhouse consoles — typical of bridge instrumentation installations.
✓ Compact DLQ192 form factor designed for flush panel mounting; compatibility with specific control panels, automation systems, or consoles is subject to confirmation based on installation drawings and existing cutout dimensions.
✓ Intended as a direct replacement or service spare within DEIF-equipped marine automation and control systems; confirmation of suitability against original order number 62167-1 and system configuration is recommended before installation.
Marine Applications
✓ Engine control rooms on merchant vessels where continuous RPM monitoring of main engines or controllable pitch propeller shafts is required during manoeuvring and sea passage.
✓ Bridge manoeuvring consoles on ferries, RoRo vessels, and offshore support vessels where ahead/astern RPM display supports safe berthing and port operations.
✓ Vessel automation and integrated bridge systems where DEIF instrumentation panels are fitted as part of a broader engine monitoring or power management arrangement.
✓ Tugboats and workboats requiring precise low-range RPM indication across the full ahead and astern operating envelope during towing and close-quarters manoeuvring.
✓ Retrofit and panel upgrade projects where an existing DEIF RPM meter requires like-for-like replacement to restore instrumentation functionality without panel modification.
Why Marine Engineers Choose
The DEIF DLQ192-BC-NB delivers reliable bidirectional RPM indication with a straightforward analogue mA input interface, panel illumination, and an adjustable accuracy setting — qualities that make it a dependable instrument for engine and propulsion monitoring in demanding marine environments.
Ideal For
Merchant vessels, ferries, RoRo and passenger ships, offshore support vessels, tugboats, workboats, and any commercial or industrial vessel fitted with DEIF marine control and instrumentation systems requiring RPM panel indication.
Technical Support & Compliance
Technical assistance is available to support sourcing, compatibility verification, installation guidance, and commissioning of this RPM meter within existing marine control system arrangements. Support may extend to panel integration, signal loop configuration, and retrofit assessments, subject to confirmation. To confirm suitability and avoid ordering errors, buyers are encouraged to share nameplate photographs, the original order number, panel drawings or cutout dimensions, the associated system model or control panel designation, vessel name, IMO number, and a description of the intended installation scope. All compatibility assessments are subject to confirmation based on the information provided.
