1) For RTD input, 3 wires with low resistance and no difference should be used. 　　2) The input signal line should be far away from the power line of the instrument. Power supply and load lines to prevent noise disturbances. 　　3) The power cord of the instrument is generally disturbed by the power supply. 　　4) Instrument complement ...

The following points should be paid attention to in the selection of intelligent thermostats: (1) Dimensions (panel size, length) (2) Enter the sensor graduation number (according to the matching sensor), display accuracy, and display resolution (3) What is the main output (selected according to the controller) ...

When using a temperature controller to control a heater, it is necessary to convert the control calculation results of the temperature controller into electricity and apply it to the heater. Electromagnetic relays, solid state relays or phase controllers are usually used for conversion. Depending on the conversion method, the output of the temperature controller is different ...

1. The power indication is normal, but the temperature controller has no screen display. Most of this fault is caused by the heating of the voltage regulator element (7805 or 7812) on the thermostat during long-term use, which leads to the breakpoint of the solder joint, and sometimes it is caused by the phenomenon of virtual soldering at the factory, and the main re-soldering can be done. 2. Temperature controller ...

fold When the RKC thermostat comes out, it is a single-loop regulator, that is, it only has a heating function, which is called the basic meter, which is generally sent to the agent, and the agent will expand the multi-channel adjustment and alarm output control function, which is called "changing the meter" in the industry, so as to ensure that there is very little hardware cost.

Take CD901 as an example, L(1) pin to 220 volt live wire, N(2) pin 220 volt neutral wire, 3,4 pins for *** output, 5,6 pins for the second output, 7, 8, 9 pins are alarm output, The rear three pins are connected to thermocouples or PT100 and so on.

There are many types of instrumentation and have a wide range of applications in many fields. Because of this, there are many problems with the failure of instruments in the process of use, so it is necessary to pay more attention to the repair and maintenance of instruments and meters, which can effectively improve the performance of instruments and meters, and can extend the performance of instruments and meters.

(1) RH400 size: 48*96, depth 60, about 250g Details: ●A variety of input types are available: 1) Thermocouples: K, J, R, S, B, E, N, T, W5RE/W6RE, PL‖, U, L 2) Temperature measurement RTD input: PT100, JPT100...

Common faults of thermostats 1. There is no display when the power is on. This type of problem first determines whether the power supply is available and whether the power supply matches the power supply required by the thermostat, and then checks whether the wiring is secure. The problem is still there, then it is the problem of the thermostat itself. 2. There is a display, and the control is wrong. This...

Generally, there are three buttons to provide the need for setting, one is the Set button, press it once to enter the setting state. The other two offer upward and downward temperature adjustments, which can be adjusted to any temperature point. After adjusting to the desired temperature point, press the Set button again to confirm. 1. Turn on the smart thermostat ...

1. First of all, determine the set temperature of the thermostat and make sure that it is the same as the temperature you need. 2. Recognize the operating form of the thermostat, usually there are two forms of cooling and heating, and choose the corresponding form according to the demand. 3. Acknowledging the operating condition of the thermostat, usually with active ...

RHK Recommended Product Models: Single-phase power conditioner THV-10（20A, 30A, 45A, 60A, 80A, 100A） 　　Ethernet communication converter COM-ME series 　　USB communication converter COM-KG 　　Digital Display Controller (Process/Temperature)

1. Set temperature: Press the SET button to set or check the temperature set point. Press the SET key digital tube character start flashing, indicating that the appearance has entered the setting state, press the △ key to increase the set value, press the ▽ key to decrease the set value, press and hold the △ key or ▽ key data will change rapidly, press the SET key again ...

The selection of thermocouples should be based on comprehensive considerations such as the scale of the operating temperature, the required accuracy, the atmosphere of the application, the performance of the measurement target, the response time and the economic benefits. 1. Selection of measurement accuracy and temperature measurement scale 1) The operating temperature is 1300-1800 °C, and the accuracy is required to be more accurate than ...

The normal operation of the instrument is inseparable from the on-site maintenance relationship, especially some important process links, once there is a leak, it will greatly affect the quality of the product, resulting in heavy losses. First of all, it is common to install both remote and field-indicated level gauges on important tanks.

What problems are easy to encounter in the use of PT100 temperature sensor probes? 1. Is the output signal unstable? A: Maybe it's the temperature instability of the temperature source itself, or the problem of on-site disturbance. 2. Is there a big error in the output of the transmitter? Answer: This ...

1. Lower limit deviation alarm setting: press the SET key to select and display "SLP", the green display screen displays the value of the parameter, and select the shift, increment, and decrement keys to set or modify the parameter. This parameter indicates the difference between the alarm point and the master setpoint. 2. The upper limit deviation alarm is set ...

1. Lower limit deviation alarm setting: press the SET key to select and display "SLP", the green display screen displays the value of the parameter, and select the shift, increment, and decrement keys to set or modify the parameter. This parameter indicates the difference between the alarm point and the master setpoint. 2. The upper limit deviation alarm is set ...

1. The power indication is normal, but the temperature controller has no screen display. Most of this fault is caused by the heating of the voltage regulator element (7805 or 7812) on the thermostat during long-term use, which causes the solder joint to show a breakpoint, and sometimes it is caused by the phenomenon of virtual soldering at the factory. 2. Temperature controller ...

First, the temperature does not appear 1. Fault with the temperature sensor If the temperature probe of the temperature sensor breaks or the wire is broken, the sensor does not have a digital display when the temperature sensor is connected, but only shows the "----" and sounds an alarm.

1. Heating for a period of time, the temperature does not change. The ambient temperature of the site (e.g. room temperature 25°C) is displayed at all times. In case of such failures, first check whether the SV value setting value is set, whether the 0UT indicator light of the meter is lit, and whether the No. 3 and No. 4 terminals of the meter with the "multimeter" are 12VD ...