| name | Explanation/ Features/ Application |
| Immersion Heating Constant Temperature Circulation Controller | temperature control head It has a heat source, circulation pump and control panel, and can be connected to different tanks to control the temperature of the bath in the tank. |
| Heating Bath / Constant Temperature Circulator | Also known as circulating water, Oil Bath, super constant temperature oil bath It is composed of a temperature control head and a tank body, with a Circulating Chiller, which can heat and control the temperature of the bath liquid in the tank, and can also be connected to external equipment to pump the liquid in the tank into the external equipment for |
| Heating and cooling bath / constant temperature circulator | Also known as circulating water, cold trap, cold and hot machine It is composed of a temperature control head and a refrigeration bath with a compressor. It is equipped with a Circulating Chiller, which can control the heating or cooling of the bath liquid in the bath. It can also be connected to external equipment to pump the bath liquid in the bath to the external equipment for heating or cooling . Refrigeration temperature control. |
| Fully enclosed dynamic temperature control system | Fully enclosed system, which isolates the bath liquid in the tank from contact with oxygen, and does not need to replace the bath oil during the whole process from low temperature to high temperature. Professional control technology + extremely high heating/cooling power + small capacity bath + powerful circulation pump, enabling the equipment to quickly heat and cool. Suitable for chemical, pharmaceutical, automotive, electronics, aerospace and other industries. |
| chiller | Also known as cooling water circulation pump, cooling circulator With a compressor and a circulation pump, it has the functions of refrigeration and circulation. It can replace tap water and connect to the condenser on rotary evaporation and Soxhlet extraction to play the role of cooling water. |
| Universal constant temperature Water Bath | Also known as Water Bath, water bath With control panel, heat source, tank, without circulation pump. Usually as a routine instrument and equipment in the laboratory, a large number of samples can be placed in the tank for heating and constant temperature. |
| Constant temperature shaking Water Bath | Also known as oscillating Water Bath, Water Bath shaker There are control panel, heat source, tank body and oscillating motor. If there is a high requirement for temperature stability in the bath, a circulation pump can be configured to improve temperature stability. It can be used for laboratory sample pretreatment, cell culture, etc. |
| Submersible cooler | With control panel, compressor, cooling head It can replace dry ice or liquid nitrogen, set a low temperature, and place the cooling head in the equipment that needs to be cooled to achieve the purpose of the experiment. |
| High precision thermal resistance temperature controller | Also known as thermostat, temperature controller It has no heat source, no circulation pump, no heating and circulation functions, and only controls the temperature of the connected equipment. Usually used in conjunction with a heating mantle, etc. |
| High precision temperature calibration bath | Heated or heated cooling baths with extreme temperature stability and uniformity. For calibrating, gauging and calibrating thermometers or temperature sensors. |
| High-low temperature constant temperature bath fluid | Also known as bath oil, circulating oil, heat transfer medium When the user's experimental temperature range exceeds the working temperature range of water or alcohol, the corresponding bath oil can be selected to achieve the target temperature. |
What is the operating temperature range?
The working temperature range refers to the temperature range (under the condition of ambient temperature +20°C). The working temperature range of the heating constant temperature circulator usually starts from room temperature + 5°C. If a cooling ring (cooling water) or refrigeration equipment is connected, the temperature range of the equipment can reach around room temperature.
What is the operating temperature range?
The operating temperature range refers to the actual operating temperature range limited by the allowed minimum and maximum temperatures. This range is adjustable and corresponds to the temperature range that the control element can control.
What is temperature stability?
Temperature stability refers to the maximum fluctuation value of the temperature when measuring the temperature at a certain point in the circulating bath within a certain period of time . Every JULABOy temperature control device is listed with a temperature stability parameter.
What is Temperature Uniformity?
Temperature uniformity refers to the maximum difference in temperature between different measurement points in a circulating bath, and this parameter is especially important for temperature calibration baths. For JULABO's circulators, there is little difference between temperature uniformity and temperature stability , and the temperature calibration bath has high temperature uniformity.
What is heating power?
Heating power refers to the maximum electric power of the heating coil in the equipment. The heating power is continuously controllable, and when the actual temperature is close to the set temperature, the heating power will be reduced.
What is the difference between PID and ICC temperature control techniques?
● JULABO 的 PID1，PID2，PID3 控制技术，有各自特定的控制参数（Xp，Tn，Tv）。PID2和PID3的控制参数可以手动修改，从而达到一个称心的温度稳定性，特别是在外部控温模式下。
● ICC(Intelligent Cascade Control) 温度控制技术，是目前世界上专业和独特温度控制技术。ICC 温度控制技术通过自动、自主地优化调整 PID 控制参数，获得很好的温度稳定性，满足各种实际应用的控温需要，成就了其良好的温度控制效果。
● ICC(Intelligent Cascade Control) 温度控制技术，是 JULABO的“HighTech”系列，动态温度控制系统“Presto”和“Forte HT”还有 LC6 程序控制器具有的技术特点。
什么是 ACC 控制技术？
ACC（Active Cooling Control）功能是指，在设备工作温度范围内，任何需要制冷的时刻，制冷系统都可以激活制冷功能。所有 JULABO 仪器的工作温度范围与ACC 范围一致。因此，制冷系统可以将高温浴液（如 200℃）快速冷却下来。
TCF（特色温度控制技术）有什么优势？
a.Band limit：内外差极限
● 当仪器进行外部温度控制时，该功能允许使用者According to需要任意设定浴槽内部温度和外部体系间的最大温度差。通过该项功能，可以保护与 Julabo 温度控制设备相连的需要温度控制的设备，例如，可以保护整个反应系统中的玻璃设备不受热冲击，防止剧烈的冷热变化引起的破裂。
b.Dynamics：温度动力曲线
● 当仪器进行内部温度控制时，使用者可以在“aperiodic”(渐进式)和“normal”(正常 PID 控制 ) 中自由选择。
● Aperiodic( 默认设置 )：称心曲线，从实际温度达到设定温度的精确度非常高，没有温度过冲现象，但可能会花费较长的时间。
● Normal：能够快速达到设定温度，但是因为升温速度快，会有小幅的温度过冲。以上设置，同样适用于制冷循环器。
c.Limits settings：极限设定
● “IntMax”和“IntMin”限制，当仪器进行外部温度控制时，可以设定浴槽内部最高和最低极限温度，控制器在工作过程中，不会超过该设定极限。
d. Co-speed factor：
● 当仪器进行外部温度控制时，这个参数会影响达到设定温度的时间。增大“cospeed”值，会减少达到设定温度的时间，但是可能会增大温度过冲。
两点式制冷和比例式制冷
两点式制冷，指设备的制冷系统只有“开”和“关”两种状态。
比例式制冷，指设备的制冷系统拥有一个特殊的电磁阀，可以自动调节设备
的制冷功率，使制冷功率能够被精准控制，还能节省高达 90% 的能源。
如何计算需要的制冷或加热功率？
通过以下公式计算：
P = (m * c* dT ) / t
P = 制冷 / 加热功率，单位 kW
m = 浴液或物料的质量，单位 kg
c = 比热 ( 水 = 4.2 / 酒精 = 2.5 / 硅油 = 1.8)
dT = 温度改变量，单位℃
t = 制冷 / 加热所需时间，单位 S
● 一要考虑到总质量（M）是不同部分的总和，例如：循环器内部、管路中、反应釜的夹套、反应釜内部等。按照以上计算公式进行的制冷 / 加热所需功率的简单计算，并不包含不同部分浴液的质量或其它可以造成功率损失的因素。
● 造成功率损失的因素，例如：管路（长度，绝热性），夹套浴槽 / 反应釜（材质，厚度，表面积），环境温度高，浴槽开口等。为了确保我们计算的制冷 / 加热功率足够，通常在计算时应引入 20~30 ％的功率损失。
显示
JULABO 设备的显示屏
● JULABO 温控产品中，不同的型号配置不一样的显示屏：
● LED 显示屏：显示实际温度和设定温度
● LED 多重显示屏：显示实际温度、设定温度、高低温报警温度值和过温保护切断点的温度值。According to型号差别，还能显示其他的参数值，比如泵级、振荡频率等。
● LCD 显示屏：可以显示文字信息，可读性更强，更易操作。
● VFD 显示屏：可同时持续显示三个温度值（内部实际温度、设置温度、外部实际温度）和泵级。
● TFT 触摸屏：新的 PRESTO 系列配备了 5.7 寸彩色工业触摸屏，直观的操作界面非常便于用户学习掌握。
循环泵知识
循环泵体系
JULABO 的设备采用良好的浸入式循环泵，经过长时间机械摩擦和浴油附着仍旧能够正常工作。循环泵不仅能使浴槽内部浴液能够有良好的循环，并且可以使整个设备体系中的浴液形成一个循环回路。JULABO 的经济型和程控型循环器以及冷水机配备的都是压力泵，型号不同，泵功率不同，主要针对密闭体系的应用。
所有专业人士型控制器的的循环泵为压力泵和吸力泵，这种类型的泵不论是在密闭体系还是开口体系，都能达到很好的压力、吸力以及流量值。除此之外，MA 和 ME 型号及专业人士型控制器的循环泵可以自动调节泵级，当这些型号设备与玻璃产品连接时，能够通过修改设备的最大泵压来避免对玻璃产品的损坏。The new PRESTO（除 A30 外） feature pumps which can be adjusted in 4 stages via a pressure setpoint.
压力泵
压力泵的主要功能是使槽内浴液形成循环，也可以将浴液泵入设备连接的密闭体系中，以形成循环回路。JULABO 的大多数设备都配备这种循环泵。
压力吸力泵
配备压力吸力泵的设备（如专业人士型系列）实际上具有两个泵，一个吸力泵，一个压力泵，两个泵在功能上互补。当压力泵将浴槽内的浴液泵入外部体系时，吸力泵会将外部体系的浴液往回吸。这两个泵的相互补充使整个体系能够拥有很大的流速。压力泵和吸力泵拥有各自的泵功率，因此，配备压力吸力泵的设备参数会列有两个参数。
进给压力
进给压力是指循环泵在泵出口具有的泵压值，如果产品参数中只有一个泵压值，则这个值代表的是流速为 0 时循环泵的最大泵压。
进给吸力
进给吸力是指压力吸力循环泵所能够提供的吸力，如果产品参数中只有一个吸力值，则这个值代表的是进给压力为 0 时循环泵的最大吸力。
流速
流速是指单位时间内循环泵泵入的浴液体积，如果产品参数中只有一个流速值，则这个值代表的是泵压为 0 时循环泵的最大流速。
制冷及噪音
什么是风冷？
If a temperature control product has a refrigeration unit, the heat dissipation of the refrigeration unit needs to be considered. Air-cooled equipment means that the heat dissipation of the refrigeration unit is dissipated into the air behind the machine through the condenser, so that other equipment placed side by side with the JULABO equipment will not be affected by the heat dissipation of the refrigeration equipment.
What is water cooling?
Water-cooled equipment refers to the use of cooling water (tap water or industrial cooling water) to remove the heat . The benefits of water-cooled equipment are low noise and no heat dissipation into the surrounding environment.
noise level, sound pressure level
Refers to the sound made by the device when it is working. The noise sources inside the equipment include heat dissipation of refrigeration equipment and heat dissipation of electronic components, etc. The sound pressure level of JULABO devices is measured in accordance with the relevant standards, for example using highly sensitive sensors and performing noise tests within the distance range specified by the standards.
