< )r, an overview
: The r, type wireless remote control water level controller is an intelligent instrument designed mainly for long-distance monitoring of the water level of the pool on the top of the water tower. It can not only monitor changes in water level, but also automatically control Start and stop the water pump. This machine is divided into three parts, namely the water depth sensor transmitter and receiver (as shown in the picture). The transmitter is installed in the water tower, and the receiver is installed in the control center. The sensor is put into the water, and its output voltage is proportional to the water depth. The higher the output voltage, the greater the output voltage. Under the control of the timing circuit, the water depth signal is transmitted to the receiver in the control center through the transmitting antenna. The receiver displays the water level data under the control of the program, and moves up and down according to the set water level. Limit value and water level alarm value, control the opening of the water pump, and promptly send out over-limit alarm signals.
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, , )2 Instrument panel description (pictured)
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, , : )3 Main technical indicators
: Power supply%
: Measuring range~ Words
: Resolution
: Measurement accuracy
: Telemetry distance
Ambient temperature ℃ ~ +℃
: Relative humidity﹤% Avoid strong corrosive gases
: Overall dimensions transmitter
Receiver
: Weight transmitter
Receiver
: )Four main functions
: Display mode: ①～Measurement value display ②～Set value display
③LED working status display.
: Output signal: ~ (Load capacity) ~ (Load capacity)
~ (Output capability) ~ (Output capability)
: Control mode: optional limit control, indication. The control method is relay/bandwidth (user can freely set) control accuracy, contact capacity/resistive load.
: Alarm mode: optional alarm limit, indication. The alarm mode is relay/bandwidth (user can freely set) alarm accuracy word, contact capacity/resistive load.
: As mentioned above, the control output can automatically control the start and stop of the water pump, and the alarm output can output the alarm switch signal to the outside.
: This machine is equipped with three channels. During installation, different channels are set according to the local environment, but the channels of the transmitter and receiver must be consistent.
: This machine transmits data intermittently, once every minute, and the transmission time is seconds. The receiving indicator light on the panel flashes green every time it receives a set of data.
: One transmitter can be configured with multiple receivers, and several receivers can monitor the water level of the same water tower and pool at different locations.
: Standard analog signal output, suitable for microcomputer acquisition and recording.
: )Five sensor measurement principle
: The sensor is a silicon piezoresistive element, packaged in a stainless steel shell, with a pressure hole on the head, and the internal sensitive piece is a single crystal silicon diaphragm with a diffused silicon resistor. , utilizing the piezoresistive effect of semiconductors to achieve force-to-electricity conversion.
: ) Six installation and operation
, , : < ) (1) Installation of the transmitter
: The location of the transmitter in the water tower depends on the different structures of the water tower. , it is best to place it in a place that is warm in winter and cool in summer. Several common installation diagrams are shown in the figure for reference. If it is a water tank on the top of a mountain, you can make a metal box with shutters and a rainproof shed as shown in the figure, and put the transmitter in it.
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, , : < ) (2) Installation of the receiver
: The receiver can be placed on the control console and installed Antenna and power cord.
: Turn the switch to the call position to communicate with the water tower personnel.
: Set the upper and lower limits of the water level and the alarm water level height, turn on the power, and the instrument is in the initial state. It will enter the normal working state after waiting for ~ times of data reception.
: Generally, when the telemetry distance is short (<), the receiver can use an indoor telescopic antenna. The telescopic antenna may not be fully extended according to the actual situation. The reception effect should be tested at different locations in the same room, so when installing An optimal position should be determined by checking that the transmitted sound is clear and that the data display is correct.
: The transmitter sends data intermittently, transmitting once every two minutes, and the transmission time is seconds. Each time a set of data is received, the receiving indicator light on the panel flashes green. It indicates that the transmitter is working normally, and the data is displayed as the current water level data and remains until the next time new data is received.
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: r , when the value is maintained, the receiving indicator light will also flash if there is external interference, but the value will remain unchanged. When the data is incorrect, you can move the position of the receiver left or right or adjust the length of the antenna until the data is accurate.
, , : After the receiver is adjusted, the position of the instrument and the status of the panel switches must not be changed at will.
: When the water tower is stopped for some reason in winter, the sensor must be drained and stored indoors to prevent freezing damage.
: If the sensor is abnormal, please do not disassemble it yourself and send it back to our company for processing.
Wireless remote control water level controller produced in Xi'an