Description
DEIF
TYPE: DLQ144-PC-NB
RPM METER / RPM INDICATOR
0 TO 120 RPM
ORDER NO: 400003048.10
INPUT: 0-10V
LOAD: >5K OHM
The DEIF DLQ144-PC-NB is a panel-mounted RPM meter designed to display rotational speed across a range of 0 to 120 RPM. Accepting a 0–10V analogue input signal with a minimum load impedance of greater than 5K Ohm, this instrument provides clear and accurate speed indication for low-speed shaft, engine, or drive monitoring applications. As a component within the Marine Control System category, it plays a critical role in giving operators real-time visibility of rotational machinery performance, supporting safe and efficient vessel operation.
Key Features
✓ Measures and displays rotational speed in the range of 0 to 120 RPM, suitable for low-speed marine machinery monitoring.
✓ Accepts a 0–10V analogue input signal with a load impedance requirement of greater than 5K Ohm, as specified in the original product data.
✓ Panel-mount format consistent with 144mm DIN-size cutouts, typical of DEIF’s DLQ series instrumentation; exact mounting dimensions subject to confirmation against installation drawings.
✓ Designed for integration into marine control and monitoring panels where analogue speed signals from transducers or controllers are already present; system compatibility subject to confirmation.
✓ Replacement or retrofit of existing DEIF DLQ-series RPM indicators should reference order number 400003048.10 and be verified against the original panel layout and signal wiring before installation.
Marine Applications
✓ Engine room control panels on cargo vessels, tankers, and offshore support vessels requiring shaft or engine RPM indication.
✓ Propulsion monitoring systems where low-speed shaft rotation must be continuously displayed at a local or remote panel.
✓ Thruster control consoles on platform supply vessels and anchor handling tugs where precise RPM readout supports manoeuvring operations.
✓ Generator and auxiliary machinery monitoring stations requiring analogue speed display as part of an integrated control system.
✓ Retrofit and upgrade projects on existing vessels where ageing RPM instrumentation is being replaced with compatible DEIF panel instruments.
Why Marine Engineers Choose
DEIF instrumentation is widely specified across commercial and offshore marine sectors for its reliability, straightforward analogue interfacing, and compatibility with established control panel architectures. The DLQ144-PC-NB delivers a clear, dedicated RPM readout without the complexity of networked instrumentation, making it a practical choice for both new installations and like-for-like replacements.
Ideal For
Cargo ships, bulk carriers, tankers, offshore support vessels, platform supply vessels, anchor handling tugs, ferries, and any commercial or industrial vessel requiring panel-mounted low-speed RPM indication as part of a marine control system.
Technical Support & Compliance
Remote and onboard technical support is available to assist with installation, wiring verification, signal commissioning, and panel integration of this RPM meter. Repair, retrofit, and upgrade advisory services can be provided subject to assessment. Compatibility with existing control systems, transducers, and panel configurations is subject to confirmation. To confirm suitability, buyers are advised to share nameplate photographs, the original order or part number, panel arrangement drawings, signal source specifications, and where applicable the vessel name, IMO number, and relevant system model or software version.
