Zone 1 Ultrasonic Level Indicator - ATEX and IECEx Approved

Portalevel® IS

Explosion-Safe Ultrasonic Liquid Level Indicator with Enhanced Calibration Capabilities

This intrinsically safe ultrasonic device is designed for measuring liquid levels in pressurized containers and is certified for use in hazardous environments classified as Zone 1 and Zone 2 under ATEX and IECEx standards.

Part Number: 2290334-IS
CAGE Code: KD983 – Manufactured by Coltraco Limited

Brochure

Zone 1 Certified Ultrasonic Level Indicator

An intrinsically safe ultrasonic device for non-invasive monitoring of fire suppression cylinders in hazardous environments. Approved for ATEX Zone 1 and Zone 2, certified to ATEX II 2 G Ex ib IIA T4 Gb and IECEx (Ex ib IIA T4 Gb) standards.

Compatible with CO₂, FM-200®, NOVEC™ 1230 and similar agents, it eliminates the need for Hot Work Permits—saving time and improving safety versus traditional weighing. Dual certification ensures global compliance.

Key Features:

  • Accuracy: ±1.5 mm

  • Advanced calibration with 3 modes (including iCal)

  • 4 power settings for varied cylinder types

  • Certified standards:

    • ATEX: EN IEC 60079-0:2018, IEC 60079-11:2023

    • IECEx: IEC 60079-0:2017, IEC 60079-11:2023

Applications:

  • LNG/LPG carriers

  • Oil tankers

  • Offshore platforms

  • Chemical and gas plants

Technical specifications

Dimensions 215 mmxx 82 mm x 30 mm

Weight: 480 g

Sensor

Head Diameter: 34 mm

Mounted in magnetic applicator

Connection: BNC with 1 m coaxial cable

Measurement Accuracy ±1.5 mm (or ±1/16 inch) from the actual liquid level

Power Supply

  • 4 x AA Energizer L91 batteries (ATEX-approved)

  • Two sets included with the unit

  • Only these batteries maintain ATEX compliance

Display Digital readout integrated into handheld unit

ATEX Certification II 2 G Ex ib IIA T4 Gb

Operating Temperature Range –20°C to +40°C (–4°F to +104°F)

What’s Included

  • Handheld Main Unit: Portable, battery-powered device with a digital display for liquid level readings. Certified for use in ATEX hazardous zones.

  • Ultrasonic Sensor with Magnetic Holder: Designed for non-invasive measurements, equipped with a magnetic applicator for secure placement. Approved for ATEX environments.

  • Ultrasonic Coupling Gel (125 ml): Ensures optimal contact between the sensor and cylinder wall for accurate ultrasound transmission.

  • 8 x AA Batteries (Ex-rated): High-performance batteries suitable for intrinsically safe applications.

  • Infrared Thermometer: Used to measure cylinder temperature. Note: This accessory is not intrinsically safe.

  • Operating Manual: Provides detailed instructions on device functionality and usage.

  • Calibration Certificate: Confirms the unit has been tested and verified for accuracy prior to shipment.

  • Durable Carry Case: Protects equipment and allows easy transport.

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