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What is the needle flame combustion tester used to detect? The needle flame tester is suitable for testing the flame retardancy of electronic components, electrical components, mechanical parts, injection molded parts, and other electrical products. This machine simulates the small flames generated inside the product under fault conditions and evaluates the fire hazard using simulation technology. Working voltage: AC220V, 50Hz; ● Chain flame application time: adjustable (0~999.9S); The burning time is randomly judged as 0~999.9S, automatically recorded, and paused at will; Flame height: 12 ± 1mm adjustable; Flame temperature grinding modification measurement: The time from 100 ℃± 5 ℃ to 700 ℃± 3 ℃ is 23.5S ± 1S, and the temperature display is 0-1000 ℃± 0.5 ℃; ● Gas source type: Butane (to be provided by the user); Flame angle: adjustable from 0 to 45 degrees; Needle height: greater than 35mm (inner diameter ф 0.5, outer diameter ф 0.9); Adjustable gas volume (flow meter); ● Dimensions: 1100X1150X550mm (internal volume greater than 0.5 cubic meters, can be customized to 0.75 cubic meters or 1 cubic meter). The inner wall of the box is black, with a light intensity of less than 20lx. The box is made of 1.2mm thick 304 stainless steel, and the combustion box and control box are in the same box; ● Thermocouple: φ 0.5 armored nickel chromium/nickel aluminum wire, K-division, imported from the UK, insulated to ground; ● One matching tray, five sheets of silk paper, and one pine board; Origin or brand of main accessories for the instrument
1. Relay: Omron
2. Digital instrument: using Korean Autonics display. 3 Circuit breaker: Schneider 4 Button, switch, indicator light: Shanghai
5. Box: made of 1.2mm thic
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2. What scenarios is the electromagnetic flowmeter suitable for?
1. To ensure the necessary conditions for electromagnetic flowmeter measurement, we first need to create an operating environment for the electromagnetic flowmeter: (1) The measured fluid medium must have conductivity and fill the pipeline. (2) The flowmeter measurement system must be well grounded. (3) The straight pipe sections before and after the flowmeter meet the specified technical requirements. (4) Avoid strong electromagnetic field interference near the flowmeter. (5) It should be installed in a dry and ventilated place as much as possible, avoiding direct sunlight and rain. The ambient temperature should be between -20 ° C and+60 ° C, and the relative humidity should be less than 85%. It should be avoided to install in environments with strong corrosive gases. (6) There should be sufficient space around the installation of the flowmeter for easy installation and maintenance. A place with no vibration or low vibration amplitude should be selected. If the vibration is too large, fixed supports should be added to the pipeline before and after the sensor. (7) Choose a location where there will be no negative pressure inside the measuring tube. If there is a certain amount of turbulence and eddies in the pipeline that are generated in the non measuring area (such as bends, tangential flow restrictions, or semi open check valves upstream), it is not related to the width measurement. 2. The use conditions of electromagnetic flow meters. Electromagnetic flow meters have high standards for the cleanliness and tidiness of fluids, and filters must be installed in front of the flow meter to ensure