Online Sensors and Controllers: Hydrogen and Carbon Dioxide Sensors Orbisphere 312xx Hydrogen Sensors

Orbisphere 312xx Hydrogen Sensors

Orbisphere 312xx Hydrogen Sensors
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The unique Orbisphere Thermal Conductivity sensor has been developed to give continuous H2 measurements in gas phase or dissolved in a liquid. The measuring technique is a combination of a gas diffusion membrane and a solid-state gas thermal conductivity detector.
A micro volume enclosed between a semi-permeable membrane and a thermal conductivity detector is periodically flushed with a purge gas. After each purge, the gas to be measured diffuses from the sample through the membrane, changing the thermal conductivity of the gas surrounding the detector. A change in thermal conductivity modifies the detector resistivity. This is measured, together with temperature, to calculate the gas concentration.

• Continuous H2 measurements
• Selective measurement, result unaffected by the presence of other gases
• Fast response time to improve plant productivity
• Compact design for easy insertion into a process line or a flow chamber
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Application Notes Type Language Size Date Edition
Analysis Of Waste-Gas / Off-Gas Oxygen and Hydrogen in Nuclear Power Plants
LIT2093 		  English US 73 KB 2016-02 Rev5
Dissolved Oxygen and Hydrogen Analysis in Reactor Coolant Systems: Orbisphere 510 with Channel Compensation
LIT2846 		  English US 82 KB 2015-09 Rev3
ORBISPHERE and Hydrogen Measurement for Stator Coolant; Hydrogen Measurement in Hydrogen-Cooled Turbo Generators
DOC043.53.30241 		  English US 592 KB 2015-04 Apr15
Brochures Type Language Size Date Edition
ENSURING WATER QUALITY For people around the world
DOC030.53.10116 		  English US 553 KB 2024-03 Mar24
Hach’s Semiconductor Quick Reference Guide
DOC030.53.10243 		  English US 5 MB 2023-08 Aug23
Introduction to Hach Services
DOC060.53.10226 		  English US 587 KB 2021-10 Jun21
Solutions for Electronics & Semiconductor Water Applications
DOC060.53.10241 		  English US 2 MB 2022-09 Aug22
WarrantyPlus Partnership - Service Plan Overview
DOC060.53.18011 		  English US 499 KB 2025-01 Nov24
Data Sheets Type Language Size Date Edition
Orbisphere Hydrogen Sensors
DOC053.53.35026 		  English US 598 KB 2022-01 Jan22
Engineering Tender Type Language Size Date Edition
Orbisphere 32001 CAD Drawings
  English US 3 MB 2016-08
Orbisphere Panel CAD Drawings
  English US 3 MB 2016-08
Orbisphere Wall-Mount CAD DXF
  English US 3 MB 2016-08
Manuals Type Language Size Date Edition
ORBISPHERE In-Line TC Sensors Operator Quick Guide
  English US 2 MB 2008-04 Rev1
ORBISPHERE Model 31xxx In-Line Thermal Conductivity Sensors Installation & Maintenance Manual
  English US 660 KB 2009-05 RevJ
User Manual : Orbisphere Model 31x9x & 31285 Thermal Conductivity Sensors
DOC024.52.93127 		  English UK, English US 2 MB 2024-07 Ed7
User Manual : Orbisphere Model 31xxx Thermal Conductivity Sensors
DOC024.52.93017 		  English UK, English US 3 MB 2024-07 Ed15
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