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Heated Sample Probe JES 300

The JES 300 heated sample probe
is an essential part of any extractive gas analyser system.

• Rugged construction
• Low maintenance
• Coated steel enclosure
• Versatile


Emission monitoring
Process monitoring
Land fill monitoring

Simple filter replacement
Wetted parts: SS316, Viton and SiC
Diagnostic capabilities
Fully heated to 180C
Included mounting flange DN65, PN6


The JES 300 Series of Heated Gas Sample Probe is designed for continuous use with extractive sampling systems even where the sample contain dust, aerosols, water vapour and high dew point corrosive gases when must be kept above its dew point to prevent corrosion and sample degradation either prior to hot analysis or sample conditioning. The JES 300 is available in several versions which may be custom configured to meet users specific application.

Principle of Operation

The JES 300 incorporates a non - corrosive heated, replaceable ceramic filter element with a filter porosity of 2 micron. The filter element is mounted in a stainless steel housing, electrically heated and controlled at 180C. The filter housing is thermally insulated and enclosed within a weather proof case. An under temperature contact allows interface of the probe to sampling system to prevent premature sampling before probe reaches operating temperature. To attach the heated sample line on the probe head our Heated Sample Line Series JH will come with a movable PG 42 fastening screw.


The complete unit, consisting of the heated filter, temperature controller, mounting flange and probe assembly, can be mounted anywhere horizontally or vertically.
It is designed for mounting directly to a standard DN 65 PN6 Form B flange. The flange material is stainless steel. When mounted horizontally, the JES 300 should be inclined at an angel of 5?15?to allow any condensate formed to drain away from the filter head.


A broad range of different materials for In-Situ probe tubes, electrically heated In - Situ probe tube and large In - Situ pre filters makes the JES 300 versatile in application.

Service and Security

An excess temperature limit switch protects against runaway and a alarm function for temperature failure. Easy filter replacement can be accomplished without any tools and without disconnecting the heated sample line.

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