Liquid crystal low-temperature extensometer

Liquid crystal low-temperature extensometerIt is suitable for measuring the extensibility of various specifications and models of asphalt, liquid asphalt distillation residue, asphalt lotion evaporation residue and other materials. It is widely used in production, road construction and scientific research departments, and is more suitable for the test of modified asphalt.

Liquid crystal low-temperature extensometerSteps to use:

1. Connect the 220V power supply. Attention: The wiring should be secure, and the entire machine casing should have good grounding protection. The neutral wire cannot be replaced with a ground wire, otherwise the machine cannot start.

2. Check if all switches are set to the "off" or "stop" position. Otherwise, it should be corrected.

3. Press the "Power" button to turn on the main power and the power indicator light will turn on.

4. Heating: Place the heating switch in the heating direction, the indicator light will turn on, adjust the temperature controller's indication to the desired temperature, and start heating. When the temperature reaches, the normally open contact will automatically open, heating will stop, and the temperature will drop. The normally open contact will automatically close, and the temperature controller will function as an automatic constant temperature controller. Attention: Do not heat or cool the sink when there is no water in it.

5. Refrigeration: Place the refrigeration switch in the cooling direction, the indicator light will turn on, adjust the temperature controller's indication to the desired temperature, and the machine will start working. When the set temperature is reached, the refrigeration will stop. When the temperature rises, the normally open contact closes again, and the cooling system works again, playing an automatic control role.

6. To make the water temperature in the sink uniform, turn on the mixing switch, the water pump starts working, the mixing stops, and the water pump stops.

7. Stretching: Set the switch to the extension or retraction position, and the motor will be powered on. Turn on the switch on the speed controller, adjust the control knob of the speed regulating motor, and change the speed of the motor to change the stretching speed. Note that to ensure a static state of the water surface, the water pump must be turned off when stretching.

Main technical parameters

1Zui Large Measurement Working Length: 1500mm

2Stretching skateboard movement speed: 0-150mm/min (adjustable)

3Stretching motor power: 120W

4Water bath stirring electric pump: 45W

5Cooling power: 1.5KW Heating power: 2KW

6Temperature control range of water bath: 5-50 ℃

7Temperature control accuracy: ± 0.1 ℃

8Cooling capacity: 4000 calories/min

9、Working power supply voltage: 220V