|
||
 |
FREE GlobalSpec e-Newsletters
Receive the latest news, trends, and technology relevant to your work. (See Titles) |
Expanding Detector Tube Measuring Ranges
|
From Sensidyne, LP
A detector tube system is a most versatile tool, simple to use yet covering a wide assortment of airborne gas and vapor measurement applications. The tube catalogs of the major brands typically list from 200 to 300 different substances that can be monitored. In addition to this wide range of target gases, a single type of detector tube can also offer a wide measuring range, sometimes spanning low ppm to percent levels in the same tube. To take advantage of the full available measuring range of a specific detector tube, we must learn to expand the range by varying the air sample volume, or the number of pump strokes in a given sample. Most Sensidyne/Kitagawa detector tubes have a printed calibration scale that corresponds to one pump stroke or 100cc of air. Often, the range can be doubled in both directions by taking one-half stroke or two strokes and correcting the reading. The general rule for range expansion in this manner is provided by the equation below. Products & Services
Gas detectors and gas sensors interact with a gas to initiate the measurement of its concentration. The detector or sensor then provides output to an instrument to display the measurements.
Search by Specification |
Learn more about Gas Detectors and Gas Sensors
Combustion analyzers and flue gas analyzers measure the gas content of emissions in order to monitor the combustion efficiency of fuel-burning equipment.
Learn more about Combustion Analyzers
Gas chromatography detectors (GC detectors) identify solutes as they exit the chromatographic column. A chromatogram is generated plotting the signal versus time.
Search by Specification |
Learn more about GC Detectors
Gas transmitters consist of an enclosure, sensor, and electronics that convert a signal from a gas sensor into an analog output signal (typically 4-20 mA).
Search by Specification |
Learn more about Gas Transmitters
Gas instruments detect, monitor or analyze gases present in an environment.
Search by Specification |
Learn more about Gas Instruments
Product Announcements
Topics of Interest
Safety professionals and industrial hygienists in petroleum refineries must face a unique air monitoring problem. Refineries incorporate many production processes that handle a large number of...
(Read More)
Detector tubes offer the simplest, quickest and most cost effective and versatile gas detection system of all.
However, many times detector tube measurements must be corrected for stroke count (i.e.,...
(Read More)
Matheson-Kitagawa Precision Detector Tubes are formulated with high purity reagents that absorb and react with the gas or vapor being measured. The reaction causes a colorimetric stain that varies in...
(Read More)
A detector tube pump should be periodically checked for leaks as part of any well-run detector tube-monitoring program. A leaking pump will cause detector tube readings to understate the concentration...
(Read More)
Microscopic evaluation is important for the design and evaluation of a pharmaceutical product after the steps in the drug formulation process. Since atomic force microscopy (AFM) provides the ability...
(Read More)
|
|
