Thermal Conductivity Analyzer

Model 212R

 

 

 

 

Aftertheanalyzerstabilizesadjustthe"ZERO"controluntiltherecorder indicates the impurity concentration of the zero gas composition. Be sure that the range switch is on position #1 and that the sample path flowrate is 0.3 scfh.

NOTE if the"ZERO" or "FINE ZERO" pot runs out of adjustment and the analyzer can not be calibrated, set this pot back to mid-scale. Then use the "COURSE ZERO" pot to readjust the zero calibration as close as pos- sible to zero calibration. And last use the "ZERO" ot "FINE ZERO" pot to fine adjust the zero calibration.

3.6Span Standardization.

After the zero has been standardized, switch the selector valve to "Span", and reset the sample path flowrate to 0.3 scfh. The recorder should come to balance on, or close to, the composition of the span gas.

The analyzer is factory calibrated to make sure that the output is linear over allthreerangesofinterest. Calibrationisachievedwithmixingblocktechnique and the span setting recorded in Section 7 is derived at that time.

If the analyzer performed as described in the warm-up procedure (Section 3.4), and fails to closely approximate the composition of the span gas, there is groundsfordoubtingthespangasmixture. Becauseofthedifficultyinvolvedin obtainingpreciseanalysisofsmallamountsofimpuritiesincylindergas,and because of the ease with which the gas can be contaminated subsequent to analysis, any large error in response to the span gas should be suspect. In such a case TAI recommends that the analyzer be operated at the recommended span settinguntilthespangasisreanalyzed.

If adjustment of the span control is necessary to compensate for minor discrepancies between the recorded setting and the span gas reading, TAI suggests that the zero and span procedures be repeated until no further adjust- mentisrequired.

3.7Bypass.

Theintegral gas controlpanel features abypass flowmeterandthrottle valve that is located downstream from the input manifold (see the analyzer piping schematic in the drawing section). The bypass system can be used to speed the response of the analyzer to changes in the process. The bypass flowmeter will indicate flowrates that are a factor of ten greater than the sample path flowmeter. TAI recommends that the bypass system be used whenever the sample path is switched and particularly after using the span gas. The time required for the analyzer to stabilize on an impurity concentra- tion within the limits of Range #1, after having been exposed to a concentra- tion within the limits of Range #3, is not a function of cell response which is

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Teledyne Analytical Instruments

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Teledyne 212R instruction manual Span Standardization, Bypass
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212R specifications

Teledyne 212R is a state-of-the-art underwater acoustic modem designed for robust communication in various marine environments. This advanced device is based on established principles of underwater acoustics and modern digital signal processing technologies, making it an optimal choice for applications ranging from oceanography to underwater robotics.

One of the standout features of the Teledyne 212R is its high data transmission capabilities, allowing for reliable communication at distances of up to several kilometers depending on environmental conditions. The modem supports various data rates, enabling flexible adaptation to the needs of different applications. This versatility makes it suitable for both low-bandwidth telemetry and high-data applications, such as video streaming from underwater drones.

The Teledyne 212R employs advanced modulation schemes that enhance its performance in challenging conditions. These modulation techniques, combined with sophisticated error correction algorithms, ensure the integrity of data transmission even in noisy environments. This resilience is crucial as it enables the modem to maintain communication in the presence of marine life, background noise, and varying temperatures.

Another remarkable characteristic of the Teledyne 212R is its compact and rugged design. Built to withstand harsh marine conditions, the modem is encapsulated in a pressure-resistant housing, making it suitable for deep-sea operations. Its durability ensures longevity and reliability, reducing the need for frequent maintenance or replacement, which can be costly in remote underwater settings.

Moreover, the modem features an array of integrated sensors that allow for real-time environmental monitoring. This capability can be pivotal for research organizations studying marine ecosystems or for oil and gas companies conducting underwater surveys. The ability to collect and transmit environmental data alongside operational data streamlines data-gathering efforts.

Ease of integration is another key aspect of the Teledyne 212R. It is compatible with a multitude of existing marine technologies and communication protocols, allowing for seamless deployment in diverse systems. This adaptability is essential for users requiring collaborative operations across multiple platforms, such as Autonomous Underwater Vehicles (AUVs) and remotely operated vehicles (ROVs).

In summary, the Teledyne 212R combines high-performance data transmission, advanced modulation techniques, rugged design, and environmental monitoring capabilities. This makes it an essential tool for anyone engaged in underwater research, exploration, or resource management, establishing it as a go-to choice in the field of underwater communication.
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