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Overview Walsn Oxygen Analyzer is designed to measure the continuous oxygen concentration in combustion flue gases of boilers and furnaces. Walsn Oxygen Analyzer uses a non-sampling (wet) analysis method. It consists of detecting unit (oxygen probe) and control unit (transmitter). The flue mounted probe has a thermostatically controlled heated Zirconia oxide sensor located at the flue end of the probe. The control unit is designed for use with the Zirconia sensor type oxygen probe. The control unit offers a centralized termination for functions such as an automatic calibration box, external calibration contacts, status relay contacts and analog and serial outputs. Virtually no maintenance is required. Repair can be carried out quickly and simply: the internal components can be withdrawn from the probe and replaced as one unit. The probe will safely operate under start-up conditions for all conventional boiler fuels,provided the fuel ignition temperature is greater than 2003F. Measuring Principle Walsn Oxygen Analyzer contains a zirconia oxide sensing element, comprising a thimble-shaped zirconia cell fitted with inner and outer electrodes at its closed end. The inner electrode is exposed to the flue gas entering the open end of the cell; the outer electrode is supplied with air from a pump or regulator and is therefore exposed to a constant partial pressure of oxygen. Since zirconia is an electrolyte which conducts only oxygen ions at temperatures in excess of 600 F, the voltage generated between electrodes (i.e. the cell output) is a function of the ratio of the oxygen partial pressure on the inner electrode and its temperature. Therefore, any change in the oxygen partial pressure of the flue gas at the exposed electrode produces a change in the cell output voltage as dictated by the Nernst equation.
Methanol is converted to co and h2 with the action of the catalyst; -co and h2o are converted to co2 and h2 with the action of the catalyst; -co2 and trace co are separated from the decomposed gases by psa technology, and high purity of h2 is generated.
Overview Handheld Portable Gigabit Ethernet Tester This handheld Gigabit Ethernet tester is used for the installation and maintenance of 10M/100M/1000M Ethernet. Its functions include network testing, data packet capture, traffic generation, cable testing and BER testing. The Ethernet tester is widely used in BER testing of layer1, layer2, layer3, and RFC-2544. Key Features Handheld Portable Gigabit Ethernet Tester Ergonomic design and easy to carry Jacket cover, tie-in protection, lanyard, hands-free viewing 4.3 in LCD color touch screen, smart navigation menus Results can be shown as texts or graphics 128 sites full line rate 10/100/1000 Mbps traffic transmission RFC2544 automated test, fast network testing and fault location LED indicator, LCD display Large capacity memory for storage of settings and results Online upgrade of firmware Basic Functions Handheld Portable Gigabit Ethernet Tester Full RFC2544 benchmark testing: throughput, frame loss rate, latency and back-to-back Single and multiple site traffic generation Compatible with VLAN tag Connectivity testing: PING, TRACE, ARP SCAN. Conducts termination mode test and frame length, frame type and used ratio status Optical power test and optical module temperature, working current and voltage test Cable VCT: capable of identifying short circuit, open circuit, cable length. Interruption time test Provides test tools including port positioning, packet capture, loopback. Provides external USB drive for data exchange Includes Test Manager Pro software for data management.
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