The invention discloses a blowing type remote
liquid level measurement system, which comprises a central control console part and a measurement and control box part, the central control console part comprises a power supply device, a HUB switch, a comprehensive alarm board, a PLC (
programmable logic controller), an industrial
personal computer and a
liquid crystal display, the measurement and control box part comprises an ME-PLC, a HUB switch, a touch screen, terminals and a pneumatic controller, the terminals are respectively connected with the ME-PLC, the HUB switch and the touch screen, the comprehensive alarm board is provided with a silencing button switch, an OK button switch, a
light testing button switch, a comprehensive alarm indicator light, an ordinary alarm indicator light and an acoustic alarm, and the ME-PLC is provided with multiple channels of
digital signal acquisition and
processing function interfaces, digital output interfaces, 4mA to 20mA
signal acquisition and
processing function interfaces and Pt100
signal acquisition and
processing function interfaces. The invention integrates the alarm
system into the remote measurement
system, cost is reduced, the
workload of maintenance is decreased,
scalability and programmability are high, and the stability of the system is enhanced.