Description
DEIF
NORCONTROL
RPM METER
100-0-100 RPM
10-0-10V M.
ILLUM 24V≂
ORDER NO.: 37639-4
The DEIF Norcontrol RPM Meter is a panel-mounted analogue indicating instrument designed to display engine or shaft rotational speed across a bidirectional 100-0-100 RPM scale. Operating with a 10-0-10V input signal and featuring 24V illumination, this instrument is built for integration into marine control system consoles where clear, continuous speed readout is essential for safe manoeuvring, engine management, and propulsion monitoring. Its centre-zero dial format is particularly suited to applications where ahead and astern directions must be distinguished at a glance.
Key Features
✓ Bidirectional RPM indication across a 100-0-100 scale, accepting a 10-0-10V analogue input signal for direct integration with engine control and monitoring systems.
✓ 24V AC illumination (as indicated by the ≂ symbol) provides consistent dial visibility in low-light bridge or engine control room environments, typical for marine panel instruments.
✓ Ordered under DEIF Norcontrol reference 37639-4; compatibility with specific control panels, consoles, or automation platforms should be confirmed against vessel documentation and system configuration.
✓ Panel-mount format typical of bridge consoles, engine control rooms, or local control stations; exact cutout dimensions and mounting arrangement subject to confirmation from nameplate or installation drawings.
✓ Designed as a drop-in replacement instrument within DEIF and Norcontrol automation environments, subject to confirmation of signal compatibility and panel interface requirements.
Marine Applications
✓ Engine control room and bridge console installations where continuous propulsion RPM monitoring is required during manoeuvring, port approach, and open-sea operations.
✓ Main engine and shaft speed indication on vessels fitted with DEIF or Norcontrol automation and control systems, including integrated bridge and alarm monitoring platforms.
✓ Offshore supply vessels, platform supply vessels, and workboats where precise ahead/astern speed control is operationally critical.
✓ Ferry and RoRo vessel bridge consoles where bidirectional propulsion indication supports safe berthing and passenger safety requirements.
✓ Retrofit and replacement applications within existing Norcontrol-equipped vessels where original instrumentation requires like-for-like substitution to maintain system integrity.
Why Marine Engineers Choose
The DEIF Norcontrol RPM Meter is valued for its straightforward analogue readout, robust panel construction, and compatibility within established Norcontrol automation environments — allowing engineering teams to maintain instrumentation consistency without redesigning signal infrastructure.
Ideal For
Offshore support vessels, ferries, RoRo carriers, general cargo vessels, tugs, and any commercial or working vessel fitted with DEIF or Norcontrol marine control systems requiring propulsion speed indication.
Technical Support & Compliance
Technical assistance is available to support identification, compatibility checking, installation guidance, and commissioning of this instrument within existing marine control system arrangements. Retrofit suitability and signal interface compatibility are subject to confirmation. To verify that this unit meets your requirements, buyers are encouraged to share nameplate photographs, the order or part number, panel layout drawings, the system model and software version where applicable, and vessel name or IMO number. Providing this information allows accurate cross-referencing against your installed Norcontrol or DEIF system configuration before supply.




