Overview
The OBC220EA is an open bath thermostatic circulator of the LABTOP brand, using a transparent polycarbonic acid ester water bath with a maximum Operating temperature of + 100 ° C and a volume of 20L. The device is room temperature controlled by chilling down the coil with external circulating water, providing an economical solution for the sample to be placed directly in the water bath for thermostatic testing. Optional external circulation adapter and external temperature sensor PT100 are available for external temperature control and recycling applications. Suitable for sample temperature control, material testing, quality control, analysis and other fields, the use of environmentally friendly natural refrigerants, with liquid level protection and over-temperature protection functions, according to Safety level III/FL can use flammability liquids, and comply with DIN 12876 standard.
Features
1. Low liquid level protection to prevent dry burning
2. Hardware over-temperature protection, the user can set the protection temperature through the knob, and can still over-temperature protection when the equipment program fails to avoid dry burning, in line with DIN12876 standard level III, flammability bath liquid can be used
3. Maintenance-free pressure/suction pump, pump pressure and Flow rate automatically adapt to external load
4. Optional multi-stage programmable controller, users can realize multi-stage program control, such as regular heating, cooling, thermostatic, slope and each period of time, each program can set the running time, up to 999 hours
5. Equipped with external temperature sensor interface, optional movable external temperature sensor, with PIDTAC control technology, Cascade cascade control technology and bath internal and external temperature lock control technology, precise control of bath external material temperature
6. Pt100 temperature sensor, single point, two point and multi point temperature calibrating
7. Liquid or steam contact parts are made of high-performance stainless steel and high-performance plastics
8. Optional related accessories to form different internal and external applications
9. The buzzer can be set to silent or audible
10. Multiple operation modes are optional, and accidental power failure can be automatically restored: Mode 1 (power-on equipment stops after power failure, setting value can be changed), Mode 2 (power-on automatic operation after power failure, setting value can be changed), Mode 3 (power-on automatic operation after power failure, setting value cannot be changed)
11. The device serial number can be queried through the software
12. Optional intelligent control functions: a variety of interfaces (RS485, RS232), to achieve remote communication, control equipment start and stop
13. Optional normally open and normally closed 2 external contact points, can be connected to external alarms
14. Optional set of 12V switch Output signal for controlling external solenoid valve
15. An optional set of 5V external input switch signals can be used for external smart devices to control the start and stop of the instrument
16. Optional 0-10V or 4-20mA analog signal input, can be used for external smart devices to control instrument start and stop
Principle
The OBC220EA open bath thermostatic circulator is temperature controlled up to room temperature by chilling down the coil with external circulating water. The device uses intelligent PID Temperature Control mode, combined with Pt100 temperature sensor, optional external temperature sensor and circulating adapter for precise internal and external temperature regulation. During the thermostatic process, the pressure/suction pump automatically adapts to the external load, ensuring a stable Flow rate and pressure, while chilling down with environmentally friendly natural refrigerants.
Applications
Sample temperature control, material testing, quality control, analysis
Steps
1. Connect the power supply (200~ 230VAC/50Hz)
2. Set the operation mode as needed (mode 1, mode 2 or mode 3)
3. Use the knob to set the overtemperature protection temperature
4. Optional External Sensor or Accessories for External Temperature Control and Circulation
5. Start the equipment for thermostatic test
6. Temperature monitoring via LED display (resolution 0.1 ℃)
7. Optional remote communication or intelligent control function for start-stop operation
Notice
• Permissible Ambient Temperature Range 5~ 32 ℃, relative humidity does not exceed 80%
• Avoid dry burning and ensure normal liquid level
• Safety level III/FL when using flammability bath
• The equipment is fixed by Benchtop to ensure stable placement
• Continuous operation is allowed 100%, but it needs to be operated under specified environment conditions
• Optional functions require additional configuration, such as external alarm or solenoid valve control
