Overview
The OBC220A is an open bath thermostatic circulator of the LABTOP brand. It uses a transparent polycarbonic acid ester water bath with a maximum Operating temperature of + 100 ° C and a volume of 20L. The device is temperature controlled to room temperature by chilling down the coil and external circulating water, providing an economical thermostatic test solution, supporting external temperature control and recycling application options. Suitable for areas such as sample temperature control, material testing, quality control and analysis, using environmentally friendly natural refrigeration, with liquid level protection and over-temperature protection. It meets Safety level III/FL, can use flammability liquids, and meets 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 vapor 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 normally 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 OBC220A achieves precise temperature regulation through intelligent PID control technology and Pt100 temperature sensor, combined with chilled down coil and external circulating water system to control bath temperature within the set range. The equipment uses a pressure/suction pump to automatically adapt to external loads to ensure stable Flow rate and pressure, and through optional external temperature sensor and PIDTAC, Cascade cascade control technology, precise control of external material temperature.
Applications
Sample temperature control, material testing, quality control, analysis
Steps
The operation steps are not mentioned in the document.
Notice
* Permissible Ambient Temperature Range 5~ 32 ℃
Permissible relative humidity not exceeding 80%
* Power supply voltage 200~ 230VAC/50Hz
* Equipment fixing method is Benchtop
Allows 100% continuous operation
* Safety level III/FL is required when using flammability liquids
