Shanghai Jianhu Instrument Equipment Co., Ltd. is a high-tech joint venture enterprise, specializing in the design, development, production, sales, and service reliability of environmental experiment equipment. Its main products are high and low temperature and humidity chambers, programmable constant temperature and humidity chambers, and it has entered the environmental laboratory- , WALKING-IN, salt spray box, constant temperature and humidity machine, hot and cold impact machine, vibration constant temperature and humidity composite testing machine, vacuum drying box, constant temperature constant temperature host and other instruments and equipment. Experienced and trusted and supported by many domestic and foreign manufacturers, the factory is set up in Shanghai, the network radiates to China, and customers are all over the world.
The drying box is used for drying and heat sterilizing items, and the constant temperature box is used for the cultivation of microorganisms and biological materials.
The structure and use method of these two instruments are similar. The use temperature range of the drying oven is 50 ~ 250 ℃, and the blast type electric heating is commonly used to accelerate the temperature rise. The maximum operating temperature of the thermostat is 60 ° C.
1. How to use
(1) Insert the thermometer into the seat (in the middle of the top vent regulator).
(2) Insert the power plug into the power socket.
(3) Turn the head of the heating wire group to the 1 or 2 position (depending on the required temperature), then the blower can be turned on to promote the convection of the hot air. After the heating wire group starts, the red indicator light is on.
(4) Observe the thermometer. When the temperature of the thermometer is about to reach the required temperature, adjust the automatic temperature control knob to make the green indicator light illuminate. Observe the thermometer and indicator light after ten minutes. If the temperature indicated on the thermometer exceeds the need and the red indicator light is still on, then Turn the automatic temperature control knob slightly counterclockwise until the temperature is constant at the required temperature, and the indicator turns red and green. The automatic thermostat knob is on the upper left of the front of the cabinet. Its scale plate can not be used as a standard temperature indicator, but only as a mark for adjustment.
(5) In the process of constant temperature, if three sets of heating wires are not required to generate heat at the same time, only one set of heating wires can be turned on. The more the number of open groups, the faster the temperature rises.
(6) After working for a certain period of time, the deflation regulator at the top of the top can be turned on to discharge the moisture, and the blower can also be turned on.
(7) After use, turn off the grouping switches of the heating wire and turn the knob of the automatic thermostat to the zero position in the counterclockwise direction.
(8) Unplug the power plug.
2. Matters needing attention
(1) Check the power supply before use and have a good ground.
(2) There is no explosion-proof equipment in the drying oven. Never put flammable and volatile materials in the oven for heating. No flammable items should be placed near the cabinet.
(3) The inside of the box should be kept clean, and the net should not be rusted, otherwise it will affect the cleanliness of the glassware.
(4) Regular monitoring should be performed during use to avoid temperature rise and fall affecting the use effect or accidents.
(5) The motor shaft of the blower should be lubricated once every six months.
(6) Do not twist the temperature sensor in the box, and avoid collision with the temperature sensor when placing items, otherwise the temperature will be unstable.
(7) The power supply should be cut off during maintenance.
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