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  • Common problem KCM-9 series temperature controller upper and lower limit control (ON / OFF) two-position control and alarm parameter setting detailed explanation

    1. List of instrument parameters needed to set the upper and lower limit output: 2. List of settings for OUT and AL1 upper and lower limit control: 3. When the OUT main control output is the upper and lower limit control (P = 0) curve: Output upper limit = sp + hy lower output limit = sp-hy, for example: the upper output limit is 60 and the lower output limit is 40 then SP = (upper limit + ... ...

    2019/11/29
  • KCM-XJ series multi-channel temperature controller upper and lower limit control (ON / OFF) two-position control parameter setting method

    1. List of instrument parameters needed to set the upper and lower limit output: 2. List of settings for OUT and AL1 upper and lower limit control: 3. When the OUT main control output is the upper and lower limit control (P = 0) curve: Output upper limit = sp + hy output lower limit = sp-hy, for example: the output upper limit is 60 and the output lower limit is 40 then SP = (upper limit + lower limit) / 2 = (60 + 40) / 2 = 5 ... ...

    2018/11/29
  • KCMR-6 KCM-7 KCM-8 series single signal temperature controller upper and lower limit control (ON / OFF mode) details

    1. List of instrument parameters needed to set the upper and lower limit output: 2. List of settings for OUT and AL1 upper and lower limit control: 3. When OUT main control output exceeds the lower limit control (P = 0, COOL = 0) curve: OUT The relay measured value is lower than the set value and has an output, and the output is higher than the set value and the upper limit is turned off. 4. When the OUT main control output exceeds the upper limit control (P = 0, COOL = 1), the curve: ...

    2018/11/29
  • Frequently Asked Questions Innovate the Basic Process of Instrument Operation

    The basic flow during operation is as follows: Connect the input sensor-> turn on the power-> perform the initial setting of the input type, etc. 1. The wiring description of various sensors is as follows: Confirm the type of the two-wire sensor: use a multimeter to measure two The resistance value of the line, the resistance value is close to 0 is a thermocouple, the resistance value of about 50 ohms is CU50, the resistance value of about 100 ohms is PT100. The three-wire or four-wire system is generally thermal resistance such as: PT100 PT1000 or CU50 Wait 2. Setting of input type: Connect the sensor correctly to ...

    2018/12/2
  • FAQ Two-wire and three-wire pressure transmitters with the best way to create instruments

    The two-wire pressure transmitter DC power supply (24V) supplies power to the on-site transmitter through two wires. At the same time, these two wires are transmission lines for output signals (4-20mA). In addition to the two current transmission lines of the three-wire transmitter current output system, there is also a power line to provide power to the transmitter. The three-wire system is one wire for the positive end of the power supply and one wire for the positive end of the signal output. The negative end of the power supply and the negative end of the signal share one wire. The wiring method is as shown in the figure below: After correct wiring, two parameters in the meter need to be modified to define the display range (upper range of the range P ... ...

    3/7/2018
  • FAQ Two-wire three-wire PT100 thermal resistance, k-type thermocouple wiring method

    Please see the figure below: Generally, PT100 has three wires, two of which are the same color or the same at the port, and the other is red. K type thermocouple generally has a red wire, which is connected to the positive electrode of the meter. ...

    2016/9/8
  • Frequently Asked QuestionsInstrument illustration of key operation and instrument parameter setting

    Single-channel instrument key operation: Applicable for single-circuit instruments such as kmm-91w kcm-7pt kcm-9 kcm-8 Multi-channel instrument key operation: Applicable for cmm-xj series instruments, such as kmm-xj4w kcm-xj8w kcm-xj21w ...

    6/12/2018
  • Frequently Asked Questions The correct connection method of temperature control meter and AC contactor

    Knowledge points: 1. Dry contact: passive switch; has two states of closed and open; there is no polarity between the two contacts, which can be interchanged; 2. Position control (the parameter P in the instrument is changed to 0, that is, Position control): Position control, also known as on-off control, is the difference between the measured value and the set value, which is used to adjust the on or off control of the adjustment object. 3. Hysteresis (parameter HY in the instrument): Hysteresis is used to limit frequent on-off and burnout of relays. The return difference is the difference required when returning to the non-output state after output. 4.PID control mode (in the instrument ...

    2017/6/13
  • FAQ Yuyao Jingchuang series temperature instrument MODBUS-RTU communication protocol

    I. Reading the measurement value to the meter: 1. Detailed explanation of the single loop (single-channel series meter) instruction: ...

    2016/11/18
  • Common problems of PID thermostat control intelligent digital display instrument self-tuning detailed description

    General description of self-tuning: The meter needs to be connected to the on-site analysis of heating equipment heating rate and environmental heat dissipation, and then these indicators into P, I, D three parameters are stored in the meter memory. Self-tuning steps: First set the setpoint SP, and then set Hy (main control hysteresis) parameter to about 0.5 ~ 1 ℃, then set the auto-tuning parameter AT to ON, the AT light is on, and the meter enters the auto-tuning state After the instrument control output has undergone three oscillations (ie three control cycles), the set P, I, and D parameters are automatically saved, the AT lamp goes out, and the auto-tuning process is all over. Normal ...

    2017/1/23
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