Agilent HP 54815A, 4-Ch, 500 MHz Color Digital Oscilloscope w/ Probes, Agilent HP 54820A 500 MHz, Infiniium Digitizing Scope - 30 Agilent HP 54820A 500MHz Digital Oscilloscope Agilent HP 54825A Oscilloscope Agilent HP 54832D 1 GHz Mixed-Signal Infiniium Oscilloscope Agilent HP 54833D 2+16...
5,6 Many patients with clinical symptoms and the acid abnormalities of GERD, as measured by intraesophageal pH probes, have an endoscopically normal-appearing esophagus or show only minimal esophageal changes such as hyperemia. Although acute inflammation may be lacking, many patients show ...
32 NAATs have been shown to be more sensitive than culture when discrepant results are resolved using infected patient status as delineated by two positive amplification results using two different methods and/or probes.13,33,34 Show moreView chapterExplore book A review of guidelines to distinguish...
Probe wear is often, but not necessarily, preceded by a period of declining calibration slope values. Probe wear is dependent on how the probe is used and stored (see Section 9.2, Storage (p. 12)). Worn probes need to be replaced. 9.1.1 When to Clean Often the probe should be ...
To measure water (or other) temperature, you can use a thermistor. Some EC or pH probes will have a thermistor integrated in the probe, or you can buy one separately. The resistance of that thermistor (or any other resistive sensor) is returned directly in ohms. Your software must convert...
JENCO ELECTRONICS, LTD. 3661型号pH ORP控制器与传输器说明书 Operation Manual MODEL 3661 Microcomputer Based pH/ORP Controller and Transmitter JENCO ELECTRONICS, LTD. MANUFACTURER OF PRECISION INSTRUMENTS 1
2. Place the pH and ATC/temp probes into the first buffer solution (either 7.00 or 6.86). Allow temperature readings to stabilize, then press and hold "STAND" for 3 seconds to calibrate. If AUTOLOCK is off, the first point has been calibrated. If AUTOLOCK is ...
This is true of all pH probes. Reference Junction The reference junction is a small hole that allows the meter to compare the sample to a reference. The reading is generated based on the electrical difference between the sample and reference. If the junction hole gets clogged, the pH ...
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The transient nature of the hyperpolarized state requires probes to exhibit a high polarization level and a long T1relaxation time constant. For Z-OMPD, polarization levels between 17% and 26% were reached after 1.5 h of polarization for both13C-labels (see Methods). T1relaxation time consta...