Cart (
Overview
Manual cargo gauging on petroleum tankers and shore storage tanks is a high-stakes measurement task. The figures produced during a gauging operation feed directly into custody transfer records, inventory control documentation, and commercial cargo quantity calculations — and the accuracy of those figures depends entirely on the quality and reliability of the instrument performing the measurement. An instrument that produces inconsistent ullage readings, misses free water at the tank bottom, or operates outside its calibrated temperature range on a heated cargo creates measurement disputes, commercial exposure, and the time cost of re-gauging that vessel operators, terminal managers, and independent surveyors cannot afford in an operational context.
The HERMetic UTImeter Rtex is a portable liquid level gauge designed specifically for restricted gauging of petroleum products on marine vessels and shore-based storage tanks. It performs up to four measurements in a single tank entry operation — ullage, temperature, oil/water interface level, and, in the Visc version, innage and reference height — and connects directly to a HERMetic vapour control valve fixed on the tank, maintaining vapour containment throughout the gauging process without requiring the tank hatch to be opened.
What differentiates the HERMetic UTImeter Rtex from other portable UTI instruments in the restricted gauging category is the optional fourth measurement function available in the Visc variant: innage and reference height measurement. This additional capability is relevant for tanker operations and terminal gauging programmes where innage figures and reference height verification are required as part of the measurement protocol — a function not available on standard triple-function UTI instruments, and one that eliminates the need for a separate reference height measurement tool in gauging programmes that require it.
Key Features
Up to 4 Measurements in One Single Operation
The HERMetic UTImeter Rtex performs ullage, temperature, and oil/water interface level measurement as standard — and in the Visc version, adds innage and reference height measurement as a fourth function within the same single tank entry operation. For cargo officers and terminal gaugers working through gauging programmes that require all four parameters per tank, completing every measurement in one instrument pass eliminates the repeated tank access, additional equipment handling, and extended gauging time that separate measurements would require. The practical result is a faster, more consistent gauging round with fewer gauge point openings per tank.
Restricted Type — Connected to HERMetic Vapour Control Valve
The UTImeter Rtex is a restricted type gauging instrument designed to connect directly to a HERMetic vapour control valve fixed on the tank. Restricted gauging maintains vapour containment throughout the measurement process — the gauging probe enters the tank through the vapour control valve without the tank atmosphere being opened to the deck environment. For tankers carrying volatile petroleum cargoes and for shore storage tanks where vapour emission control is required for environmental compliance and personnel safety, restricted gauging is the correct and often mandated gauging method. The HERMetic valve connection ensures the UTImeter Rtex integrates directly with the existing HERMetic vapour control valve installation without requiring additional adapters.
Custody Transfer and Inventory Control Measurement Capability
The HERMetic UTImeter Rtex is specifically designed for custody transfer and inventory control measurement applications — the highest-accuracy measurement contexts in petroleum cargo operations. Custody transfer requires measurement figures that meet the evidentiary standard for commercial documentation: consistent, repeatable, and produced by an instrument whose accuracy specification is verified and documented. The UTImeter Rtex’s design intent for custody transfer use means its accuracy specification, construction standard, and operating procedure are all calibrated to meet the demands of commercial cargo measurement rather than operational monitoring only.
Free Water Detection at Tank Bottom
The UTImeter Rtex detects the oil/water interface level — including free water at the tank bottom — during the gauging operation. Free water detection is a critical measurement requirement for petroleum cargo tanks: undetected free water accumulation affects cargo quantity calculations, cargo quality, and MARPOL compliance management on tankers. Identifying the precise oil/water interface level during each gauging operation gives cargo officers and terminal gaugers the data they need to manage water accumulation before it creates cargo quality problems or compliance issues.
Innage and Reference Height Measurement — Visc Version
The Visc version of the UTImeter Rtex adds innage measurement and reference height verification as a fourth measurement function. Reference height measurement — verifying the fixed reference point from which ullage measurements are taken — is a quality assurance step in gauging protocols that confirms the measurement datum has not shifted due to structural changes, tank deformation, or valve fitting movement. For gauging programmes where reference height verification is part of the measurement protocol, having this function integrated into the UTImeter Rtex eliminates the need for a separate reference height check and the additional time and equipment it would require.
Suitable for Marine Vessels and Shore Storage Tanks
The HERMetic UTImeter Rtex is designed for use on both marine vessels and shore-based storage tanks — making it a versatile portable gauging instrument for organisations operating across both environments. For independent surveyors and gauging inspectors who work across vessel and terminal locations, an instrument that functions correctly in both environments without modification or reconfiguration reduces the equipment carried and the operational procedures required across different gauging sites.
Technical Specifications
Product Name: HERMetic UTImeter Rtex
Type: Portable Restricted Liquid Level Gauge
Gauging Type: Restricted — via HERMetic vapour control valve
Standard Measurement Functions: Ullage, Temperature, Oil/Water Interface Level
Optional 4th Function (Visc Version): Innage, Reference Height
Application: Custody Transfer, Inventory Control, Free Water Detection
Compatible Installations: Marine Vessels, Shore Storage Tanks
Vapour Control Valve Requirement: HERMetic Vapour Control Valve (fixed on tank)
Product Family: HERMetic UTImeter Range
Benefits
Reduces total gauging round time on multi-tank measurement operations. Completing ullage, temperature, interface, and — where required — innage and reference height measurements in a single instrument operation per tank means fewer separate instrument deployments, fewer gauge point openings, and a materially shorter gauging round across multi-tank vessels and storage installations. For cargo officers and terminal gaugers working under time pressure, this consolidation directly reduces operational gauging time without compromising the completeness of the measurement record.
Vapour control connection supports personnel safety and environmental compliance. Gauging through a HERMetic vapour control valve rather than through an open tank hatch eliminates deck personnel’s direct exposure to cargo vapour during the gauging operation, and prevents uncontrolled vapour release to the atmosphere. For tanker operators and terminal HSE managers, this is both a personnel safety improvement and a contribution to vapour emission control compliance — particularly on installations where vapour recovery or vapour emission control requirements apply.
Single instrument covers custody transfer, inventory, and free water measurement requirements. Organisations that previously maintained separate instruments for ullage measurement, temperature measurement, and free water detection can consolidate those functions into a single instrument. Fewer instruments in a portable gauging kit means a simpler equipment management and calibration programme, reduced procurement and maintenance cost across the instrument fleet, and a more straightforward gauging procedure for the operators using the equipment.
Reference height measurement integration supports gauging protocol completeness on a single instrument. For gauging programmes that include reference height verification as a quality step — common in custody transfer protocols where measurement traceability is important — the Visc version’s integrated reference height function means this step is completed with the same instrument and within the same tank entry operation as the other measurements, rather than requiring a separate check with additional equipment.
Designed for the measurement accuracy demands of custody transfer documentation. The UTImeter Rtex’s design intent for custody transfer and inventory control use — rather than operational monitoring only — means its accuracy specification and construction standard are appropriate for producing measurement figures that will be used in commercial cargo documentation. For procurement teams sourcing gauging instruments for custody transfer applications, this design intent distinction is a relevant differentiator from instruments designed primarily for operational level monitoring.
Who It’s For
The Chief Officer or Cargo Officer Managing Custody Transfer Gauging on a Petroleum Tanker
You’re responsible for producing the ship’s figures for cargo quantity at load port and discharge port — figures that will be compared against the terminal’s independent gauger’s measurements and that form the basis of the bill of lading quantity. You need a restricted type portable UTI instrument that connects to your vessel’s HERMetic vapour control valves, covers all measurement parameters in a single gauge point operation, and produces consistent, documentable figures that stand up to comparison with the terminal surveyor’s figures. The UTImeter Rtex is designed specifically for this application — custody transfer gauging through restricted vapour control valve access on petroleum tanker cargo tanks.
The Independent Cargo Surveyor Working Across Marine and Shore Tank Installations
You conduct third-party independent gauging across a range of locations — tanker cargo tanks at marine berths and shore-based storage tanks at terminals and depots. Your figures become commercial documentation and your professional credibility is directly tied to the accuracy and consistency of your measurements. You need a portable gauging instrument that works correctly in both marine and shore tank environments, covers all required measurement functions, and meets the vapour control requirements for restricted gauging at installations fitted with HERMetic vapour control valves. The UTImeter Rtex’s dual-environment design and HERMetic valve compatibility make it a practical single instrument for multi-environment independent gauging work.
The Terminal Operations or HSE Manager Standardising Portable Gauging Equipment
You’re responsible for the portable gauging equipment used across a terminal’s storage tank farm — selecting instruments that are safe for use in your hazardous area classifications, accurate enough for your inventory control and custody transfer requirements, and compatible with your existing tank vapour control valve infrastructure. If your terminal uses HERMetic vapour control valves, the UTImeter Rtex provides direct compatibility with your existing valve installation and covers all measurement parameters your gauging programme requires — ullage, temperature, free water, and where needed, reference height — within a single instrument specification for your portable gauging equipment register.
Possible Applications
- Petroleum tanker custody transfer gauging at marine load and discharge berths — Restricted gauging through HERMetic vapour control valves for cargo quantity measurement at load port and discharge port, producing ship’s figures for bill of lading and cargo receipt documentation.
- Shore-based petroleum storage tank inventory control measurement — Ullage, temperature, and free water measurement for periodic inventory control gauging at crude oil, fuel oil, and petroleum product storage terminals and depots.
- Free water detection in cargo and storage tanks — MARPOL and cargo quality management — Oil/water interface measurement to monitor and manage free water accumulation in petroleum cargo tanks and shore storage tanks for cargo quality protection and MARPOL compliance.
- Independent third-party custody transfer surveying across marine and shore installations — Portable gauging for independent inspection companies conducting custody transfer measurement across both tanker and terminal environments on a single instrument.
- Reference height verification in custody transfer gauging programmes — Visc version — Integrated reference height measurement for gauging programmes where reference height verification is included as a quality step in the measurement protocol, without requiring a separate instrument or additional tank access.
- Heated petroleum cargo temperature measurement — HFO, crude oil, lubricating oil — Temperature measurement in heated petroleum product cargo tanks and heated storage tanks for cargo care records, temperature compliance monitoring, and API cargo temperature documentation.
- Petroleum product terminal pre-loading and post-discharge measurement — Comprehensive tank measurement before cargo loading and after cargo discharge for quantity verification, tank condition records, and turnaround documentation at petroleum product import/export terminals.
- Bunkering fuel quantity verification at marine bunker berths — Restricted ullage measurement in bunker fuel storage tanks and vessel bunker tanks for quantity verification during bunkering operations where vapour control is required.
Trust & Certifications
Restricted Gauging Design — Vapour Control Compliance Standard
The UTImeter Rtex’s restricted gauging design — requiring connection to a HERMetic vapour control valve for tank access — is the engineering response to the vapour emission control and personnel safety requirements that apply to petroleum product gauging on marine vessels and at onshore terminals. Restricted gauging is specified in OCIMF guidelines and industry best practice for petroleum cargo gauging on tankers, and is increasingly required at shore terminals under vapour emission control regulations. An instrument designed specifically for restricted gauging operation — rather than adapted from an open-gauging instrument — provides the system integration and operational reliability that hazardous petroleum gauging environments require.
Designed for Custody Transfer — Commercial Measurement Standard
The HERMetic UTImeter Rtex is described by the manufacturer as designed for custody transfer use — the most demanding measurement accuracy standard in petroleum operations. Custody transfer instruments must produce figures that meet the commercial documentation requirements of oil major cargo operations, terminal acceptance procedures, and independent inspection company standards. For procurement teams selecting portable gauging instruments for custody transfer applications, the manufacturer’s explicit custody transfer design intent provides assurance that the instrument’s accuracy specification and construction standard are appropriate for commercial measurement use.
HERMetic — Established Manufacturer of Petroleum Gauging Instruments
HERMetic is an established manufacturer of petroleum level gauging instruments and vapour control valve systems with a recognised presence in the marine tanker and petroleum terminal gauging market. The HERMetic UTImeter range and HERMetic vapour control valve system are familiar equipment specifications across the tanker and terminal sector. For procurement teams and vessel operators sourcing portable gauging instruments, HERMetic’s established position in the petroleum gauging equipment category provides the manufacturer credibility relevant to safety-critical measurement instrument sourcing decisions.
Supplied by Alright Engineering Solutions
The HERMetic UTImeter Rtex is available through Alright Engineering Solutions Pte. Ltd., an authorised distributor of marine safety, portable gas detection, and cargo gauging instruments in Singapore. Alright Engineering Solutions supports tanker operators, terminal operators, independent gauging companies, and ship management organisations across the Singapore and regional market with instrument supply, technical product enquiries, and after-sales support coordination.
Accessories & Variants
HERMetic UTImeter Rtex Visc Version — With Innage and Reference Height Measurement
The Visc version of the UTImeter Rtex adds innage measurement and reference height measurement as a fourth function to the standard triple-function instrument. For gauging programmes where reference height verification and innage measurement are required as part of the measurement protocol — particularly in custody transfer applications where measurement traceability is documented — the Visc version provides these additional capabilities within the same restricted gauging instrument without requiring separate equipment. Confirm with Alright Engineering Solutions whether the standard or Visc version is appropriate for your gauging programme requirements.
HERMetic Vapour Control Valves
The UTImeter Rtex requires connection to a HERMetic vapour control valve fixed on the tank for operation. HERMetic vapour control valves are available through Alright Engineering Solutions for tank installations that are being retrofitted with vapour control gauging capability, or for replacement of existing HERMetic valves. The vapour control valve is the fixed tank fitting that makes restricted gauging possible — without it, the UTImeter Rtex cannot be used on that tank gauge point.
Alternative Portable UTI Gauging Instruments
MMC UTI Meter D2401-2 — MMC triple-function restricted type UTI meter with Tefzel-coated anti-static tape, API Chapter 7 temperature compliance, and ±3mm tape accuracy for tanker and terminal gauging
T2000-TFC-01 Portable UTI Meter — Restricted type UTI meter with Ex ia IIB T4 intrinsic safety, ±2mm accuracy, and -20°C to 110°C temperature sensor range for petroleum and chemical cargo gauging
GX-8000 Sample Draw Multi Gas Monitor — Portable marine sample draw multi-gas monitor for confined space entry and cargo tank atmosphere testing
RX-8700 Portable Gas Detector — Portable multi-gas monitor with ATEX/IECEx/MED certification for marine gas detection applications
Get in Touch
If you need the HERMetic UTImeter Rtex for custody transfer gauging, inventory control measurement, or free water detection on marine vessels or shore storage tanks — whether for immediate vessel supply, terminal procurement, or guidance on the standard versus Visc version for your gauging programme — contact Alright Engineering Solutions to confirm availability and request a formal quotation.
Our team can advise on instrument variant selection, HERMetic vapour control valve compatibility, and suitability for your specific custody transfer or inventory gauging requirements.
📍 3791 Jalan Bukit Merah #06-01, E-Centre @ Redhill, Singapore 159471
