4 20 мА rs485 ультразвуковой расходомер

 Features

lThe Meter Can Programme And Measure Any Shapes Of Open Channel & Partial Filled Pipe By 20 Coordinate Points

lVelocity Range 0.02-12m/s, Accuracy ±1.0%

lBi-directional Measuring Velocity, Positive Flow And Negative Flow

lDepth Measurement By Pressure Sensor And Ultrasonic Sensor, Accuracy ±0.1%

lBuilt-in Coordinate Correction Function

lStandard 4-20mA, RS485/MODBUS Output, Opt.GPRS

lAvailable Configure Data Logger With SD Card

Sensor Specification

Calculator Specification

1.1 Working Principle

       POF505 can measure the following data:

· Velocity

· Flow

· Depth(ultrasonic)

· Temperature

· Depth(pressure)

· Electrical Conductivity

· Tilt (sensor angle offset)

                                                 Picture 1.0.1 Working Principle

 1.2 Flow Calculator Installation and Wire Connection

Flow calculator installation

1. Determine the installation distance between the calculator and the sensor. The standard factory configuration is 15m.

2. The calculator should be installed in the place with less or no vibration, no corrosive objects, and the ambient temperature is -40°C ~ 75 °C. Direct sunlight and rain should be avoided.

3. Cable wiring hole: used for sensor wiring, power line and output line wiring. If it is not used, plug the hole.

                      Picture 1.0.2 Portable flow calculator

Flow Calculator Wire Connection

Picture 1.0.3 Caculator Wire Connection

AC85-265V at the rightmost end of the wiring part of the calculator is connected to the external AC for power supply, and it can also be connected to the 24V DC for power supply.

Sensor is connected to the sensor.

Modbus is the communication interface of Modbus.

Pulse is pulse communication interface, which outputs instantaneous flow.

Dep is 4-20mA analog depth output.

Vel is 4-20mA analog instantaneous flow output.