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Thermostatic water tank instructions and precautions
Instructions
1. Add liquid medium to the tank, the liquid medium level should not be lower than the working table 30mm.
2. Selection of liquid medium:
A: teach temperature - 80 ° C, the liquid medium is generally used pure water.
B: When the working temperature is 80--90 °C, the liquid medium is generally selected from 15% glycerin aqueous solution.
C: When the working temperature is above 95 °C, the liquid medium is generally selected with oil, and the open cup flash point value of the selected oil should be higher than the working temperature by more than 15 °C.
3. Circulating pump connection
A: Connect the inner circulation pump, connect the outlet tube to the inlet tube with a hose (a hose is supplied)
B: The external circulation pump is connected to the outer circulation, the outlet pipe is connected to the inlet of the container outside the tank, and the inlet pipe is connected to the outlet of the container outside the tank.
4 . When using the super constant temperature bath, if the working temperature is >100 °C, it is recommended that the external pipe of the circulating pump should be a metal tube or a silicone tube (note: the tube on the left side of the instrument is the inlet tube, and the tube on the back is the outlet tube).
5 . Plug in the power and turn on the "Power" switch.
6 . The instrument operates as follows:
   A: Instrument button description:
◄ shift, ▲ addend, ▼ subtraction, 〖 SET 〗 set function key
   B: Temperature setting
Press the set function key to enter the temperature setting state, the last value of the set value flashes. At this time, press the shift and then press the plus or minus to set the working temperature you need, then press the set function key and save the set value. At this time, the measurement shows the temperature of the liquid medium in the current tank. After that, the microcomputer enters the automatic control state. The set operating temperature should be higher than the indoor temperature +8 °C.
C: Description of other parameters:
(1) SC indicates measurement correction, T: indicates time proportional period, P: indicates time proportional band, I: indicates integral system, and d: indicates differential system
(2) Press the set function key for 5 seconds to automatically enter the other parameter set value state. At this time, the measurement window displays the word "SC", and the required parameters are set by the addend or subtraction. Press the set function key again, the measured value window displays "T", press the addend or subtraction to set the required parameters, and so on to all the parameters to be completely modified, and then press the set function key for 5 seconds to resume the normal control state. And save each setting value.
Note: (1) Set the required working temperature and other parameters at the end, and press the set function key to save the set value within 15 seconds. If the set value is exceeded, the original set value will be automatically restored.
(2) Under normal circumstances, please do not modify the parameters yourself, except the measurement value correction can be modified.
7 . When the value to be measured reaches the working temperature, the temperature difference between the measured value and the actual groove is corrected according to the thermometer required for the experiment inserted into the tank (the operation method is the same as the second item in Article 6c). Experiment or test.
Precautions for use
(1) Liquid medium should be added before use
(2) Using the power supply 50HZ 220V, the power supply must be greater than or equal to the total power of the instrument, and the power supply must have a good "grounding" device.
(3) The instrument should be placed in a ventilated and dry place with a distance of 30 mm from the obstacle on the back and sides.
(4) After use, all switches should be turned off and the power plug should be unplugged.