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Implement standard: AHA (American Heart Association) guideline for CPR. Clearly anatomic characteristic, realistic touch feeling and lifelike skin color, vivid appearance. Simulate vital signs. Pupil state: contrast observation of pupils, one is dilated, the other one is contracted. Carotid artery response: simulate carotid artery pulse. Open airway. Can perform artificial breathing and external cardiac compression. CPR Training Model,CPR Training Manikin,Suture Training Model,System Model Of Training Xinxiang Vic Science&Education Co.,Ltd. , https://www.hnbiologyspecimen.com
Low concentration methane sensor AZ-GJC4S
Low-concentration methane sensor model: AZ-GJC4S I. Overview AZ-GJC4S low-concentration methane sensor is used to detect methane content in coal mine underground air. Both the positive and negative sides clearly show the current methane concentration in the air, increasing the ease of installation downhole. It is an intelligent inspection instrument and all adjustments can be made with the remote control. It has the characteristics of high precision, stable and reliable, and free of cover opening and debugging. Second, the main technical indicators 2.1 Measurement range: (0 ~ 4)% CH? 2.2 Measurement error measurement range% CH4 basic error 0.00 ~ 1.00 ± 0.10% CH41.00 ~ 3.00 true value of ± 10% 3.00 ~ 4.00 ± 0.30% CH42 .3 Display mode: Four digits display 2.4 Ambient temperature: (0 ~ 40) °C Relative temperature: ≤98%, 25 °C Atmospheric pressure: (80 ~ 116) kPa Wind speed: no more than 8m / s containing gas Or underground coal storage temperature of coal dust explosion hazard: (-40 ~ 60) °C2.5 Power supply: working voltage: (9 ~ 24) V.DC (intrinsically safe) working current: ≤ 80mA instrument with power-on soft start function At the moment of power-on, no excessive current will be generated. Remote control power supply: 3V.DC (two sections of 1.5V dry battery), current 9mA2.6 Explosion-proof type: mine intrinsically safe and explosion-proof type, the circuit part is intrinsically safe circuit, and the catalytic component part is explosion-proof part. 2.7 Explosion-proof mark: Exibdl2.8 Cable length (between sensor and substation): ≤ 2km, distributed capacitance:
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Low concentration methane sensor AZ-GJC4S.zip