1 Key Technical Specifications/主要性能参数:
1.1 Equipment: Speedy Climatic Test Chamber
设备名称：高低温快变试验箱
1.2 Model: M/STHP
型号：M/STHP
1.3 Useful capacity: 150L/280L/500L/1000L approx
有效容积：约150L/280L/500L/1000L (可定制）
1.4 Temperature range: -70℃～+150℃;
温度范围：-70℃～+150℃
1.5 Temperature fluctuation: ≤±0.5℃;
温度波动度：≤±0.5℃;
1.6 Temperature uniformity: ≤2.0℃;
温度均匀度：≤2.0℃
1.7 Temperature deviation: ≤±2℃;
温度偏差：≤±2℃;
Note: The above performance is measured at steady state, without any load and heat dissipation;
注：上述性能是在稳态条件，无负载和散热的条件下测得；
1.8 Temperature rate of change/温度变化速率：
Heating up rate：-50℃~+100℃, Linear speed 15℃/min;
(Without load, without heat dissipation)
升温速率: -50℃~+100℃，线性速率15℃/分钟；(空载，无散热)
Cooling down rate: +100℃~-50℃, Linear speed 15℃/min;
(Without load, without heat dissipation)
降温速率: +100℃~-50℃，线性速率15℃/分钟；(空载，无散热)
2 Cabinet Structural Features/箱体结构特性:
2.1 Housing: mono-block construction which comprises all systems necessary for operation; The outer housing will be made of good quality galvanized sheet steel which is inside and outside primered and painted to a standard finish with high quality materials. The exterior surface will have high wear resistance
箱体结构：单一结构，包括所有箱体工作所必须的系统。外部框架由高质量电镀钢板组成，它外部涂有高质量的底漆和涂层。外部表面具有强抗腐蚀能力，白灰色，RAL-7035。
2.2 Test space: the internal test space will be made of non magnetic SUS-304 stainless steel with no paint. All the seams will be TIG welded and vapor tight. The surface will be well polished.
测试空间：箱体内胆材料为SUS304号不锈钢。所有缝隙都由TIG（钨极惰性气体保护电弧焊）无缝焊接完成，保证密封。表面被很好的刨光。
2.3 Interior shell materials: SUS304 stainless steel plate t=1.0mm;
内部材料；SUS304不锈钢板，厚度=1.0mm；
2.4 Insulation: the insulation material will be of low 'k' factor, high intensity and non hygroscopic nature. The insulation will be multi layered with double vapor barrier. Asbestos free mineral fiber insulation will be used and the thickness is about 125mm.
保温材料：使用低“K”值的绝缘材料，高强度和不可燃、不沉积特性。这种绝缘材料为多层分层，每层两面都有蒸汽绝缘，厚度125mm。
2.5 Door: fully-opened and single wing type, double silicone seal, hinges and lock.
箱门：全开单翼型，带有双层硅橡胶密封和门锁。白灰色，RAL-7035。
2.6 Internal lighting: One lamp, with control switch placed on the control panel;
内部照明：1 个，控制开关在箱体外部控制面板上；
2.7 One shelf: Height is adjustable. shelf support load: 30 kg uniformly distributed;
一个隔架，可调整高度。隔架承重：可均匀承重30公斤；
2.8 Cable port: One porthole (Ф80mm), by low thermal conductivity materials and equipped with blind plugs.
测试孔：一个直径为80mm，带有由绝缘材料做成的绝缘塞；（位于箱体右侧）
2.9 Four castors for easy movement.
配备4个脚轮，方便箱体自由移动；
2.10 One Emergency Stop.
配备急停开关1个；
3 Air-conditioning System/空气调节装置:
3.1 Regulation and control: Forced circulation for temperature and humidity regulation; Independent PID regulation to achieve consecutive cooling and heating capability; No energy waste deriving from extra heating to compensate extra cooling;
调节和控制：强制对流调温调湿方式；独立的冷端和热端PID调节，热量和冷量均可连续调节，避免了制冷量和加热量对冲而造成的能源浪费；
3.2 Air-circulation equipment: Powerful blowers driven by external motors with stainless steel shafts;
空气循环装置：带有不锈钢轴的外部电机驱动的高效率风扇；
3.3 Heating: Nickel-chromium alloy heating wire, controlled by SSR; protected by failure-safe thermostats;
加热：镍铬金属丝加热器，SSR控制；配备故障保护温度开关；
3.4 Cooling mode: Direct cooling;
冷却模式：直接冷却；
3.5 Heat exchanger: tube-finned heat exchanger which exchanges the heat with air inside the chamber
热交换器：管片式热交换器同室内空气进行热交换；
4 Refrigeration System/制冷系统:
4.1 Refrigeration System Composition:
制冷系统组成:
4.1.1 Refrigerant: environment-friendly fluorine coolant R404a & R23;
制冷剂：环保制冷剂R404a & R23
4.1.2 Consecutive capacity regulation capability;
压缩机冷量连续可调：试验过程压缩机的制冷能力输出连续可调，既保证试验室的温湿度控制精度，同时也节约了试验室的运行能耗，防止冷热量对冲而导致能源浪费；
4.1.3 Refrigeration compressor: German Bitzer semi-hermetic compressors
制冷压缩机：德国比泽尔半封闭压缩机
4.1.4 The compressed is equipped with electronic suction and discharge pressure sensor, this is convenient for error diagnosis and future maintenance; the pressure can be read on line;
压缩机的吸排气口都安装有电子压力传感器，能够实时的读取压缩机的高压和低压压力，监控冷冻机组的运行状态，对于可能出现的故障进行预判，减少设备的维修时间和周期，大大提高了设备的运行效率，方便客户使用；
4.1.5 Condensation mode: water-cooled condenser;
冷凝模式：水冷冷凝器
4.1.6 Refrigeration mode: Mechanical compression cascade system;
制冷方式：机械压缩复叠制冷
4.1.7 Heat exchanger: plate heat exchanger;
热交换器：板式换热器
4.2 An automatic protection design is incorporated into the cooling system and realized by injecting liquid refrigerant into compressor suction pipe. This design can prevent compressor from overheating during the cooling down period from high temperature environment.
制冷系统的设计采用了全自动的保护措施。通过将液体制冷剂喷射到压缩机吸气管路来防止压缩机在高温环境冷却阶段产生过热现象；
