20SH 20AH Immersion constant temperature cycler

Product features
1. 4.3-inch TFT color large screen display, with a maximum display accuracy of 0.001, multiple interfaces can be freely switched, and the machine's set temperature, actual temperature, liquid level, heating, cooling, speed, running/stopping and other operating states can be displayed on the screen, with a maximum temperature of 200 ℃;
2. Real time display of temperature curve;
3. The brightness of the color screen can be adjusted according to the ambient brightness, with touch control to achieve the best display effect and protect the user's eyes;
4. The display accuracy can be arbitrarily set to 0.1/0.01/0.001, and the temperature display unit can be switched between Celsius ℃ and Fahrenheit ℉;
5. The Chinese and English operating interfaces can be freely switched;
6. Three temperature setting methods: 1. The temperature can be set by touching the button to increase or decrease by 0.1 degrees or 0.01 degrees; 2. You can also long press the button to quickly increase and decrease; 3. Directly input the set value;
7. Accurate and stable temperature control: Three point calibration function ensures the accuracy of instrument temperature; Level III PID control, equipped with PID sensors with adjustable control parameters, temperature stability ± 0.02;
8. A powerful pressure suction circulation pump capable of internal and external circulation, with a maximum pressure of 0.7 bar, a maximum suction of 0.4 bar, a maximum flow rate of 33.3L/Min, and adjustable speed. Users can adjust the required pressure suction and flow rate according to specific applications, which can better meet more external circulation needs. It can run continuously for 24 hours for a long time. The small opening bath design recommends the use of external circulation applications;
1) Closed external circulation function: The equipped external circulation pump can be used for closed external circulation constant temperature applications such as reactor temperature control, condenser cooling, etc;
2) Open external circulation function: optional liquid level controller can achieve constant temperature circulation of external open containers, providing constant temperature for external open large opening containers and conducting more sample experiments;
3) The international standard M16x1 connecting nut can be configured with different joints to meet the needs of different external circulation pipe diameters;
9. Four level safety protection, compliant with DIN12876 standard, safety level III/FL, can use flammable bath solution. The first level low liquid level protection triggers an alarm and cuts off the power supply to the heater when the liquid level is low, preventing dry burning; The second level adjustable safety temperature protection, with a safety temperature sensor Pt1000, allows users to accurately set the safety protection temperature based on the ignition point of the liquid used, achieving precise safety protection by promptly cutting off the power supply to the heater during dry burning; The third level can set high and low temperature limit protection, control the temperature sensor Pt100, and alarm and stop when the detected temperature exceeds the set value. Flammable and non flammable liquids can be used; The fourth level intelligent adjustable speed pump automatically adjusts the output power, pump pressure, and flow rate of the circulation pump when the viscosity of the bath liquid changes, effectively protecting the circulation pump and extending its service life.
10. During early warning and alarm, reminders are displayed on the interface and beep sounds are used to increase the safety of equipment use;
11. Parts that come into contact with liquids or vapors are made of high-performance stainless steel and high-performance plastics. Corrosion resistant stainless steel SUS304 water tank and stainless steel SUS304 cooling coil, which do not produce copper green or rust after long-term use;
12. Simple pump interface, M16x1 threaded connection, easy and fast installation, good sealing, high reliability, not afraid of aging, long service life
13. There are three operation modes to choose from, which can be set to automatically run when powered on (continue to run when power is restored after an unexpected power outage). The three operation modes are detailed as follows:
Mode 1: When the power supply of the device is disconnected during operation, the next time the device is powered on, it will be in a normal stop state, and the set value can be changed (normal normal mode).
Mode 2: When the power supply is disconnected during device operation, the device will automatically run the next time it is powered on, and the set value can be changed (it will continue to run when power is restored after an unexpected power outage).
Mode 3: When the power supply is disconnected during device operation, the device will automatically run the next time it is powered on, and the set value cannot be changed (it will continue to run when power is restored after an unexpected power outage).
14. Users can specify whether to equip with RS232 or RS485 communication interfaces;
a) Connect to a computer via RS232 interface to enable LabTemp software to monitor the temperature of the host, store and import/export data;
b) Connect peripherals through RS485 interface, with optional 0-10V or 4-20mA analog signals for remote communication, control the start stop and operation of equipment, and monitor
Specifications

Product Model	Temperature Range [ºC]	Temperature stability [ºC]	Heating power [W]	Pump flow rate [L/Min]	Pump pressure [bar]	Pump suction [bar]	immersion depth [mm]	External dimensions (W x D x H) [mm]
HW-CHM-20E	RT+10...100	±0.05	2000	12	0.2	0.1	63...130	136 x151x 336
HW-CHM-20SM	RT+10...150	±0.03	2000	22	0.3	0.2	63...130	136 x151x 336
HW-CHM-20SH	RT+10...200	±0.03	2000	22	0.3	0.3	63...130	136 x151x 336
HW-CHM-20AH	RT+5...200	±0.02	2000	0...33.3	0...0.7	0...0.4	63...130	136 x151x 336