Can the BF 8805A constant temperature water supply controller be used only for water level control?

Refers to the water level gauge. This situation should be a problem with the solar machine, and it has nothing to do with the meter. If there is hot water and the meter display is not right, it is the problem of the meter, and there is no hot water, it should be solar.

The controller is the heart of the machine. The standard is defined as: the main command device that controls the starting, speed regulation, braking and reverse of the motor by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit in a predetermined sequence.

Composed of program counters, instruction registers, instruction decoders, timing generators, and operation controllers, it is the "decision-making body" that issues commands, that is, completes the coordination and directs the operation of the entire computer system. Electricity is the first-level discipline of its application, and power distribution and electricity consumption are the second-level disciplines.

Refers to the water level gauge. Your situation should be a problem with the solar machine, and it has nothing to do with the meter. If there is hot water and the meter display is not right, it is the problem of the meter! No hot water should be solar.

You can use the constant temperature water supply function to adjust the water supply temperature to the lowest level, so that the controller thinks that the water supply is full at any time.

The temperature is controlled by changing the feedback voltage or current according to the change of resistance. Just understand the principle of transformation.

The start and stop of the pump should be a switch signal, I don't know if your controller output is a switch signal.

If not, you can only use the simplest float, which is easy to use and cheap. A simple control system needs to be installed. o(∩_o~

That is, the water level is low, and the water is automatically added to the specified water level to prevent dry boiling.

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First of all, your question is not clear, generally speaking, boiler water level control is inseparable from three links, water valve, water level measurement and automatic water controller, automatic water controller has a variety of models and types, can be a simple relay system. It can also be a PID regulator, a PLC or a subroutine in DCS. Don't know what you're asking?

The automatic water filling of solar water heaters is fully automatic and semi-automatic water application, and the switch is definitely different.

Semi-automatic water loading working principle:

The semi-automatic controller only shows the water temperature and water level, and can not automatically put on the water, usually the solar water heater is installed on the roof of the building, and is connected to the user's home with two water pipes, which is used to flow hot water, and doubles as the water pipe when the water is served, and the other one.

For exhaust use, it will overflow from here after the water is filled, when the water is about to be filled, the user manually opens the water valve, because the pressure of the tap water is high, the water starts to flow upward, once the water fills the tank, it will come from the exhaust pipe B

Outflow. When the user sees the overflow, the valve will be closed, and some water heaters have a water level display on the controllable observation, and there will be an alarm sound to close the water valve when the water is full, and the water filling work will be completed.

The working principle of the water supply device with automatic circuit control:

The automatic water level controller is composed of a power supply circuit, a water level detection circuit and a control execution circuit, the power supply circuit is composed of a power transformer, a rectifier diode, a filter capacitor, and a water level detection circuit is composed of a high water electrode A and a low water electrode B

and the main electrode C, the control and execution circuit is composed of integrated circuits and relays, AC contactors, etc., when there is no water in the water tank or the water level is lower than the low water electrode B, the relay.

Suction, the pump motor is energized to work, and the water tank begins to be watered. When the tank water level reaches the high water level of electrode A, the conductive resistance of the water connects electrode A with electrode C

Connected, so that the relay disconnects the circuit, the motor is powered off, and the water tank stops from entering the water. When the water level drops below B, the main electrode C is the same as electrode B

They are all separated from the water surface, so that the contactor is engaged again, the pump motor works, and the water tank begins to be watered.

It is to start the solenoid valve when the water level probe shows no water, start the solenoid valve when the water level probe is empty, start the solenoid valve on time to start the solenoid valve on time, and the small switch inside is generally to adjust the sensitivity of the water level probe. Generally, there are two gears: high and low.

Here's how it works.

Apply the water completely by hand. A temperature probe consists of two different thermoelectric electrodes (wires) that are welded to each other at one end to form the measuring end (also known as the working end) of the temperature probe.

1. Set the alarm temperature to 30 degrees, no return difference, then when the temperature reaches 30 degrees, the alarm will be canceled when it returns to below 30 degrees.

2. Set the alarm temperature to 30 degrees and the return difference is 1 degree, then the alarm will be canceled when the temperature reaches 30 degrees, and the alarm will be canceled when it returns to below 29 degrees.

3. If you need to set the opening temperature of 25 degrees and the closing temperature of 30 degrees, then it should be lower than 25 degrees to open and higher than 30 degrees to close, just set the lower limit alarm of 25 degrees and the return difference of 5 degrees, then it will be turned on if it is lower than 25 degrees, and it will be closed when you know that it will be closed when it returns to 30 degrees.

No. The reason why the Four Seasons Pastoral is only open for three seasons of three modes,In fact, there is also a hidden mode triggered by the plot.,The number of genders that need to take a bather will be automatically unlocked if they meet certain conditions.,There's no way to manually kiss.。

These are all selected in the control program of the thermostat. There are two modes of timing water supply and water level replenishment on the intelligent temperature controller, when you select the timing water feeding mode, you can set the water feeding time for water feeding, and when you select the water level replenishment mode, it will automatically water when the bottom line is set at the bottom of the water level. As for the heating function, set the minimum and maximum temperatures, the electric heating will automatically start when the water tank temperature reaches the lowest level, and the electric heating will automatically turn off when the maximum temperature is reached.

However, the temperature setting only works for electric heating, not for sunlight heating, which means that when the sun is good, the temperature of the water in the tank will exceed the maximum temperature set.

Long press the setting button, take your hand after a beep, the general meter, you can see the time display hour where the jump, and then press the setting button, the minute jump, press the arrow key to adjust when jumping, the instrument does not have an automatic timing function, but there is a rechargeable battery inside.

Can be plugged in for a long time. Regarding electric heating control, there should be three types of timed heating, temperature controlled heating, and manual heating, which can be arbitrarily selected according to your needs. If you have any other questions, please ask.