Supplier: Hach Company
Description: 3654 handheld analyzer measures accurately nitrogen (N2) or hydrogen (H2) in either dissolved or in gas phase. Measurements are not affected by the presence of other gases. Stores up to 500 measurements. Rechargeable batteries allow up to 15 hours operation in continuous measuring mode. N2 or H2
- Instrument Type: Analyzer
- Mounting Type: Portable
- Application: Continuous Emissions Monitoring, Ambient Air Monitoring
- Measurement Type: %Volume, Trace
Standards and Technical Documents - Dissolved Hydrogen Measurement with Solid State Sensors in Liquids Using Dynamic Drift Elimination Techniques - Analysis 2013
Description: Specialized techniques such as Dissolved Gas Analysis (DGA) have historically been used to measure gas concentration and successfully indicate faults in equipment such as oil-filled transformers. A palladium based, solid state, on-line hydrogen sensor is presented that can operate immersed directly
Supplier: Hach Company
Description: Measure oxygen (O2) or hydrogen (H2) levels in hazardous areas. Works with Orbisphere patented electrochemical (EC) oxygen sensor. Intrinsically safe non-rechargeable battery pack allows up to 60 hours in continuous measuring mode. Stores up to 500 measurements. Supports European Community
- Dissolved Oxygen Sensor Technology: Other
- Mounting / Environment: Portable
- Display Type: Digital Display
- User Controls: Digital Front Panel, Computer Interface
Description: swings, hydrogen sulfide, wastewater chemicals, heavy metals, or organic build-up on the sensor. Warm-up time is unnecessary so the analyzer can start measuring within 30 seconds of when it’s turned on. Simple Installation & Maintenance. The HACH LDO probe can be installed with a choice
Supplier: Analytical Technology, Inc.
Description: sample flows into a special chamber where the hydrogen sulfide is stripped from the sample. A sensor located in the gas stream measures the released H2S concentration and displays the results in terms of equivalent sulfide ion concentration in mg/l. Because sulfide measurements are often made
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OPTISENS MAC 100
is suitable for the measurement of such different analytical parameters as pH/oxygen reduction potential (ORP), free chlorine, chlorine dioxide, ozone, hydrogen peroxide, conductive conductivity, inductive conductivity, and dissolved oxygen. Regardless of which sensor is used or which parameter is being measured, the device offers standardized startup and operation. The user can also opt to measure two different parameters or to connect two different sensors to one signal converter. This eliminates... (read more)
Browse Liquid Flow Meters Datasheets for KROHNE, Inc.
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and resistive hydrogen sensors for inert gas-water vapour
J. Appl. Phys. 28 L1654–6  Hara N and Macdonald D 1977 Development of dissolved hydrogen sensors based on yttria-stabilized zirconia solid electrolyte with noble metal electrodes J. Electrochem. Soc. 144 4152–7  D’Amico A, Palma A and Verona E 1982...
Sensoring hydrogen gas concentration using electrolyte made of proton conductive manganese dioxide
N. Hara, D. D. Macdonald, Development of Dissolved Hydrogen Sensors Based on Yttria- .
Laboratory Testing of a Sensor for Hydrogen Dissolved in Transformer Oil
Laboratory Testing of a Sensor for Hydrogen Dissolved in Transformer Oil .
Measurements of hydrogen activity in iron during cathodic protection using a potentiometric concentration cell
Based on well-tried principles, a solid-state sensor for hy- drogen dissolved in steel has been constructed using a steel membrane as bi-electrode.
strength of stator end windings during sudden short circuits; T-EI sensor for hydrogen dissolved in transformer oil; T-EI Apr 81 .
Optical Chemical Sensors
Lobnik A., ýajlakoviü M., Sol–gel based optical sensor for continuous determination of dissolved hydrogen peroxide, Sensors Actuators B 2001; 74: 194-199.
Both the dissolved oxygen and hydrogen sensors consist of an electrochemical cell separated from the flow by a special porous membrane.
Detection Of Hydrogen From Dissolved Gases In Transformer Oil By Pd/Pt Misfet
a MISFET type hydrogen sensor for detecting dissolved hydrogen in transformer isolation oil.
Optical hydrogen sensors based on metal-hydrides
The latter allows also the use of such sensor for detecting dissolved hydrogen in a liquid.
Revisiting Hydrogen in Steel Part 1: Theoretical Aspects of Charging, Cracking and Permeation
The stationary value of PH2thus represents the hydrogen activity common to both the metal and gas phases, and therefore characterizes the concentration of hydrogen dissolved in the sensor steel.
Fiber Optic Hydrogen Sensor
This report covers the development of fiber optic hydrogen and temperature sensors for monitoring dissolved hydrogen gas in transformer oil.
(e.g. dissolved gas sensors , hydrogen peroxide equipment, ECP sensors and N-16 .
Bodzenta J, Burak B, Gacek Z, Jakubik WP, Kochowski S, Urbanczyk M (2002) Thin palladi- um film as a sensor of hydrogen gas dissolved in transformer oil.
An On-Line Monitoring System for Gases Dissolved in Transformer Oil Using Wireless Data Acquisition
 J. Bodzenta, B. Burak, Z. Gacek, W. P. Jakubik, S. Kochowski, and M. Urbanczyk, "Thin palladium film as a sensor of hydrogen gas dissolved in transformer oil," Sensors and Actuators, B: Chemical, vol.
Arsenic Control During Aquifer Storage Recovery Cycle Tests in the Floridan Aquifer
The SeaCat Profiler measures DO using a Clark polaro- graphic membrane with a gold cathode, which is more stable and is not affected by dissolved hydrogen sulfide compared to sensors with a silver cathode (Sea-Bird Elec- tronics Inc. 2012).