Instructions for using LDE-500 electromagnetic flowmeter

Description :

　　Due to the absence of flow obstructing components inside the instrument measuring tube, only the inner lining and electrodes of the measuring tube come into contact with the fluid being measured. The material of this product can be selected based on the properties of the fluid being measured.

　　1、 Characteristics:

　　On site, the range can be modified online according to the actual needs of the user.

　　2. The measurement results are independent of physical parameters such as flow velocity distribution, fluid pressure, temperature, density, viscosity, etc.

　　3. High definition backlit LCD display, fully Chinese menu operation, easy to use, simple to operate, easy to learn and understand.

　　4. It has digital communication signal outputs such as RS485, RS232, Hart, and Modbus.

　　5. It has self checking and self judging functions.

　　6. Hourly total volume recording function, which records the total flow volume in hours and is suitable for time-sharing measurement system.

　　7. There are three integrators inside that can display the forward cumulative amount, reverse cumulative amount, and difference cumulative amount respectively. There is also a non power failure timer inside, which can record 16 power failure times.

　　2、 Technical data:

　　Nominal diameter series DN (mm)

　　Pipeline PTFE lining: 10, 15, 20, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600

　　Pipeline rubber lining: 40, 50, 65, 80, 100, 125, 150, 200, 300, 350, 400, 500, 600, 800, 1000, 1200

　　Flow direction: positive and negative net flow. Range ratio: 150:1. Repeatability error: ± 0.1% of the measured value

　　Accuracy level: 0.5 level, 1.0 level (pipeline type)

　　Temperature of the tested medium: ordinary rubber lining: -20+60 ℃

　　High temperature rubber lining: -20+90 ℃

　　PTFE lining: -30+100 ℃

　　High temperature PTFE lining: -30+180 ℃.

　　Rated working pressure: Pipeline type: DN10-DN80 ≤ 1.6Mpa, DN100-DN250 ≤ 1.0Mpa, DN300-DN1200 ≤ 0.6Mpa

　　Flow measurement range: The flow measurement range corresponds to a flow velocity range of 0.1-15m/s

　　Conductivity range: The conductivity of the measured fluid is ≥ 5us/cm (integrated type). Most media composed of water have a conductivity in the range of 200-800 μ s/cm, and electromagnetic flow meters can be used to measure their flow rate.

　　Current output: When 0-10mA, the load resistance is 0-1.5k Ω; 4 Ω? At 20mA, the load resistance is 0-750k Ω

　　Digital frequency output: The upper limit of the output frequency can be 1? Set the transistor collector with photoelectric isolation to open circuit bidirectional output within 5000Hz. When the external power supply is ≤ 35V and conducting, the collector current is 250mA

　　Power supply: 85-265V, 45-63Hz

　　Length of straight pipe section: Pipeline type: upstream ≥ 5DN, downstream ≥ 2DN.

　　3、 Installation:

　　1. Selection of installation location:

　　The installation position must ensure that the pipeline is always filled with the measured liquid.

　　Choose a location with low liquid flow pulses, which should be away from local resistance components such as pumps, valves, and elbows.

　　When measuring biphasic (solid, liquid, gas, liquid) liquids, a location that is not prone to phase separation should be selected.

　　The inner diameter or circumference of the tested pipeline should be easy to measure, and the ellipticity should be small.

AfterSalesService :

• Instructions for using LDE-500 electromagnetic flowmeter