Gain And Off set Adjust allows the proportional adaptation of the external signals to the normal voltages used in the automatic control systems.
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Galileo Ideal Slope Demonstration Device
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It is used in middle school chemistry to study forming principle of galvanic cell and application of galvanic cell. It mainly consists of transparent plastic vessel and cover, electrode plate, electrode cards and terminal.
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The changes of the resistance are particularly significant on the palm of the hands and on the plant of the feet. Such resistance decreases during periods of emotional stress. Moreover, the surface of the skin shows an electrical potential, that can reach up to 50mV and that can equally be influenced by emotional states. At the passage of an electrical current, the skin shows a resistance that is normally within the 100 kOhm to 1 MOhm range.
Circuit blocks:
Typical circuit that is used in the monitoring of the Galvanic Skin Resistance
Variation of the resistance in direct current of the skin with relation to humidity
Recording of the changes of the Galvanic Resistance of the skin due to emotional or physical stimuli.
Disposable sterile cleanroom shoe covers are made from high MVTR, innovative fabric. Each pair is individually packaged to help prevent cross-contamination.
Sterile-Don packaging protects against contamination during donning
Sterile shoe covers are made of comfortable fabric and include non-skid soles to help prevent accidental slips as you work. Shoe covers protect against liquids and particulates, so your shoes stay pristine. Each shoe cover is low-linting and sterilized to the highest Sterility Assurance Level.
Helps keep wearers cooler vs many competitive fabrics
Tear-resistant fabric ensures your safety in demanding environments
The low-linting fabric helps reduce the release of unwanted particulates in your work area while tunnelized elastic also contains particle shed. Each pair of shoe covers is individually bagged to help prevent cross-contamination. Each bag includes a red indicator dot for proof of sterilization.
Bound seams.
Absorption is used to remove one or more gaseous components from a gas flow using a solvent. The flow rates of the gas components are displayed. A compressor delivers the gas mixture into the lower section of the absorption column. First of all, a CO2 and air gas mixture is produced. Water is used as the solvent. The CO2 is absorbed by the downward flowing water. As the pressure is reduced and the temperature is increased, the solubility of the CO2 falls. A heater heats the water. A water jet pump generates the vacuum in the desorption column and causes the CO2 gas to be emitted from the water. To separate the absorbed CO2, the charged water is then fed from the lower section of the absorption column into a desorption column. It is possible to adjust the mixing ratio using valves. A pump then delivers the regenerated solvent back into the absorption column. The water temperature can be controlled. Flow rate, temperature and pressure are continuously measured. In the column, part of the CO2 is separated in the counterflow with the solvent.
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Column working length is 1.4m x 80mm diameter, split into two sections.
An apparatus for teaching the principles of the absorption of gas into liquid, using a packed column.
Water flow can be used in either recycle or one-pass operation.
Column supplied with 10mm x 10mm Raschig rings as packing material, total volume 7 liters.
Two electronic pressure sensors measure the pressure drop across each half of the column.
An electronically controlled submersible pump provides a liquid flow of 1-10 l/min.
60l feed tank.
Electronic measurement of CO2 concentration in the air streams, measurements can be taken at the column inlet and outlet.
Sensor values displayed on an alpha-numeric display on the control console.
Centrifugal fan provides air flow up to 160 l/min.
Two electronic temperature sensors measure the air and liquid temperatures.
In Gas Absorption Trainer With DCS Control trainer, an air CO2 mixture emulates the raw gas stream and CO2, the acid gas. The amine is regenerated and recycled through the process. The Gas Absorption Trainer With DCS Control is equipped with industry typical process measurement and control devices, providing a realistic training environment in which the students are exposed to many available technologies. The separation of gas mixtures and recovery of the components usually involves a regenerable absorbent. In the natural gas processing industry sulfur compounds and CO2 are removed by absorption by an aqueous amine solution. The trainer is controlled from a distributed control system.
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Gas buoyancy demonstration device
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Gas Chromatograph With Flame Ionisation Detector (FID)
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Gas Chromatograph With Triple Quadrupole Mass Spectrometer Detector (GC-MS-MS)
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Gas Chromatography mass Spectroscopy Triple Quadrapole GC-MS and MS
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Gas Column Resonance
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The column demonstration apparatus is a small scale vessel that models the operation of a gas contactor or distillation column using air and water as working fluids. Column staging internals show:
Tray columns using sieve, valve and bubble-cap trays
Packed columns using both random and structured packing
Function:
The process has manual control valves with rotameters and is intended to demonstrate contactor distillation principles with basic visual manual operation.
Gas Contactor Distillation Column Demonstrator process uses air and water to emulate column dynamics. Water is recycled; the air is vented to atmosphere.
Air flow generation by fan; adjustment by valve
Tanks for feed material and coarse material
Solid separation from gases with a cyclone
Metering of feed material into the air flow with a disperser
1 filter at air inlet and 1 filter for fine material at air outlet
Recording of differential pressure, volumetric air flow rate and temperature
Cyclone with tangential inlet.
Gas Cylinder Trolley
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