The specific operation steps of DK-3 digital constant temperature electric sand bath are as follows:
Place the electric sand bath on a dry workbench in a horizontal state, install a leakage protection switch in the power line and install a grounding wire. Turn on the power switch when using, 1. Set the temperature: press the SET key to enter the temperature setting mode to set or view the set value, press the SET key to see the number flashing to indicate that it is in the setting mode, press the up button to increase the set value, and the down button Decrease the set value, keep pressing it and it will increase or decrease to the value you need. After setting, press the SET button to exit the setting mode and return to the normal working measurement mode.
2. Adjust parameter Sc: Press and hold the SET key for 3 seconds to enter the internal parameter setting adjustment interface. The interface displays Sc as the error calibration value, indicating the error between the measured value and the actual value of the temperature controller. The default is 0.0, and you can adjust it again Press the SET key, the flashing number will enter the adjustment state (the following parameters are set in the same way), press the up or down button to adjust the value. (-99~99)
E: After setting, press the SET key to enter the next parameter adjustment, and the interface displays E to indicate the advance of the breakpoint control (only valid when the P value is set to 0), the default value is 5, and the adjustment method is the same as Sc.
P: Press the SET button again to enter the third parameter, and the interface displays P to indicate the P value setting. The meaning of P value is roughly the start control temperature = set value - (100/P value). For example, if it is set to 200 degrees, when the P value is 100, it means that the control starts at 199 degrees, and when the P value is 40, it means that the adjustment starts at 197.5 degrees. If the temperature overshoot is too large during use, adjust the P value appropriately; if the temperature rises too slowly or never reaches the control temperature, adjust the P value appropriately.
Note: When the P value is 0, enter the breakpoint control mode. That is, the system PID is invalid, when the temperature is lower than (set value - E value), it starts heating, otherwise it stops heating.
c: Press the SET key to enter the setting of parameter c, the last parameter is temporarily reserved for the system internal parameters, please do not adjust, the default value is 50
AL: Press the SET key to enter the setting of the parameter AL, and AL represents the high temperature alarm value. That is, when the temperature > set temperature + AL, the instrument will alarm for high temperature.
TI: Press the SET key to enter the setting of the parameter TI, TI means timer, and the unit is minute. 0 means that the timing mode is off, otherwise, the instrument will enter the stop state after working for TI minutes, and stop the output of the load terminal. After all parameters are set, press the SET key to save the parameters and return to the normal working state.
Precautions
1. When the electric sand bath is in working condition, it should be supervised by special personnel.
2. Do not touch the panel cover during work to avoid burns.
3. After the work is completed, turn off the power switch and cut off the power supply.
