MMC Sonic Tape (Model D-2401-2)
The MMC Sonic Tape (Model D-2401-2) is a high-precision portable tank gauging device engineered for accurate ullage measurement, oil-water interface detection, and temperature gauging in cargo tanks. Designed for modern marine and offshore operations, it provides dependable performance while ensuring full compliance with international tanker safety and environmental standards.
Product Overview
The Sonic Tape—widely known in the oil & gas industry—is an ultrasonic liquid level sensing system developed by MMC. Unlike conventional sounding tapes that rely on residue markings, the Sonic Tape uses an ultrasonic probe to detect liquids, delivering direct and highly accurate digital readings on the tape. It is specifically designed to operate through vapor locks, allowing safe and compliant tank gauging while minimizing vapor release on deck.
Key Features of MMC Sonic Tape (Model D-2401-2)
Triple Function Measurement
Ullage (U) – Accurate cargo oil level measurement
Temperature (T) – Compensates for volume variation
Oil-Water Interface (I) – Essential for crude & slop tanks monitoring
Ultrasonic Sensing Technology
Eliminates guesswork caused by oil residues
Provides high-precision, direct readings
No need to average multiple measurements
100% Safe for Tanker Environments
Operates on closed gauging systems (vapor locks)
Minimizes vapor emissions during measurement
Enhances deck safety during cargo operations
Intrinsically Safe Certification
IECEx-approved: Ex ia IIB T4
Suitable for explosive gas atmospheres
Safe for use on oil tankers, chemical tankers & FPSOs
Rugged & Portable
Designed for harsh marine environments
Lightweight, durable construction
Easy to use with minimal training
International Compliance & Approvals
IMO & MARPOL Compliance
Complies with IMO MARPOL Regulation 15.(3)(b)
(Consolidated Edition 2006, Annex I, Chapter 4, Regulation 32) requiring:
Approved oil-water interface detectors
Accurate and rapid interface detection in slop tanks
Availability for use in any tank where oil-water separation is required before overboard discharge
USCG Marine Safety Center Compliance
Complies with 45 CFR Part 39.30-1(i) for restricted gauging devices designed to minimize cargo vapor release.