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WXS wireless water level monitor remote transmission device
WXS wireless water level monitoring system is composed of xpt135 liquid level transmitter, wireless transmission component and swj-1 water level monitor. Xpt135 liquid level transmitter converts on-site parameters into 4-20mA electrical signal. The wireless transmitting component receives the 4-20mA signal of xpt135 liquid level transmitter, and the encoder is adjusted into ism radio frequency band frequency transmission. After receiving this signal, the wireless receiving component in the station is restored to 4-20mA electrical signal of liquid level by decoder, Swj-1 water level monitor accepts this 4-20mA, which is processed and calculated by CPU, displays the remote water level value, outputs the alarm contact and RS485 communication, eliminates the long-distance laying of cables, and the wireless transmission component works in the free frequency band between 441mhz-469mhz without application. It adopts efficient forward GFSK modulation with low bit error rate, and automatically and quickly completes the transmission and reception. Swj-1 water level monitor receives the 4-20mA electrical signal from the wireless receiving device, sends it to the CPU for processing and calculation through a / D conversion, visually displays the remote water level value, and outputs four alarm signals, one analog and serial RS485 communication.
Range of water level transmitter: 1-100m
Voltage: xpt135 24VDC
Voltage of wireless transmission component: 24VDC
Swj-1 voltage: ac86v-265v dc110-340v
Wireless center frequency: 433MHz
Wireless transmission distance: sight distance 8000m
Swj-1 contact capacity: 3A / 250VDC, 3A / 30vd
