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Multiphase High-Temperature High-Pressure Explosion Limit Tester

ECB-2002AE

ECB-2002AE is developed in accordance with ASTM E918, ASTM E2079, EN 1839, EN 15967, and UL 9540A, enabling measurement of key explosion and combustion parameters such as lower and upper explosion limits, limiting oxygen concentration (LOC), explosion pressure, and rate of pressure rise, and is used for multiphase ejecta explosion testing from lithium-battery thermal runaway, UL 9540A thermal-runaway gas explosion characterization, and organic vapor flammability evaluation in fine-chemical synthesis processes.

Test Parameters

Explosion limits, limiting oxygen concentration, explosion pressure, rate of pressure rise

Application

Lithium batteries | Flammable gases

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Features

Specifications

Standards

Applications

Videos

Features

Modular design concept to flexibly meet different testing requirements

Freely programmable test procedures for varying test needs

Test vessel made of 316L stainless steel for corrosion resistance

Jacketed temperature control for high control efficiency

Flexible isothermal settings to balance efficiency and accuracy

High-efficiency vacuum pump with configurable cleaning parameters to minimize residue effects

Precision measurement and control system with compensated gas-mixing algorithm for accurate gas concentration control

Built-in stirring to ensure uniformity of the gas mixture

Explosion-rated pressure sensor with high operating temperature capability and strong dynamic response

Automated gas sample handling: automatic evacuation, automatic gas mixing, and automatic stirring

Safety interlock functions to enhance operational safety

Multiple safety protections including a safety valve and rupture disc to protect personnel

Specifications

Operating environment	−5 to 45°C, <95% RH
Test vessel temperature control range	Ambient to 200°C
Max configured gas pressure	Atmospheric pressure supported, ±0.1% FS
Test vessel design pressure	≥2.0 MPa
Explosion pressure sensor	≥5.0 MPa, linearity ±1.0% FS
Explosion pressure sensor sampling rate	≥5 kHz
Explosion pressure sensor sampling duration	≥1 s
Gas inlet channels	3 channels
Max stirrer speed	400 rpm, adjustable
Gas mixing accuracy	±0.2% FS @ methane 0.254 SLM
Accuracy for standard samples	±0.2% @ methane

Applications

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Videos

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Download

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Q&A

What is the maximum pressure capability of the test vessel and pressure sensor?

The test vessel design pressure is ≥2.0 MPa. The explosion pressure sensor is rated ≥5.0 MPa with ±1.0% FS linearity.

How many gas inlet channels are available?

The system provides 3 gas inlet channels for gas supply and mixing.

How is gas concentration controlled and how accurate is it?

Gas concentration is controlled by a measurement and control system with a compensated gas-mixing algorithm. Gas mixing accuracy is ±0.2% FS @ methane 0.254 SLM.

What are the sampling specifications for explosion pressure measurement?

The explosion pressure sensor supports ≥5 kHz sampling rate with a sampling duration of ≥1 s, suitable for capturing fast pressure-rise events.

Does the instrument include features to ensure mixture uniformity and operational safety?

Yes. It includes stirring (up to 400 rpm, adjustable) to improve mixture uniformity, along with safety interlocks and multiple protective devices (e.g., safety valve and rupture disc).

ASTM E918: Standard Practice for Determining Limits of Flammability of Chemicals at Elevated Temperature and Pressure

ASTM E2079: Standard Test Methods for Limiting Oxygen (Oxidant) Concentration in Gases and Vapors

EN 1839: Determination of the explosion limits and the limiting oxygen concentration (LOC) for flammable gases and vapours

EN 15967: Determination of maximum explosion pressure and the maximum rate of pressure rise of gases and vapours

UL 9540A: Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems

Complies with the above standards and their equivalent national or industry standards.

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