service and support
SERVICE AND SUPPORT
SERVICE AND SUPPORT
1) The sensor can be installed at the lowest part of the U-shaped pipe so that the sensor measurement conduit is always filled with fluid.
2) Ensure that the straight pipe sections before and after the sensor are not less than 5D and 2D, respectively.
3) If installed vertically or obliquely, the fluid should generally flow from bottom to top.
4) Make sure that the measuring tube is coaxial with the process pipe.
5) To prevent the lining from wearing, an imported protection flange can be installed at the sensor inlet (provided by the manufacturer).
6) Avoid strong vibration and excessive temperature changes. 7) The magnetic field strength of the installation site should be less than 400A / m.
1) After confirming the cable type, perform wiring according to regulations, and the wiring should be correct and reliable.
2) When stripping the cable, be careful not to damage the insulation that should be retained. As far as the flow signal line can be connected, strip the shield as little as possible.
(1) The resistance between the excitation lines is normally about 40 to 60 ohms, and the plug-in type is about 100 ohms.
(2) The insulation of the excitation line to ground is recommended to be above 20M ohms, and it is normally insulated.
(3) Signal line to ground (resistance should normally be less than 50K ohms, and greater than 50K ohms, it is very likely that the electrodes are polluted.
(4) There may be a polarization phenomenon. Here, this 50K is only a cutoff value, which does not mean that it is abnormal if it exceeds 50k.
1. Intelligent design, can display the medium flow direction and air traffic control signal.
2. With small signal removal and small signal migration function.
3. Ultra-high brightness, high-definition dual-row backlit LCD display.
4. The EEPROM memory is adopted, and the measurement and operation data storage protection is safe and reliable.
5. Year, month, day, hour, minute, second time display.
6. With MODBUS protocol RS-485 communication interface and HART protocol communication interface.
7. Wide flow range and small initial measurement flow rate.
8. Simple and reliable structure, no moving parts, no blocking parts, no pressure loss and fluid blocking.
9. No mechanical inertia, fast response, good stability, can be applied to automatic detection, adjustment and program control system.
10. It is applicable to the measurement of various strong acids, strong alkalis and salt solutions.
11. The measurement accuracy is not affected by the type of measured medium and physical quantity parameters such as temperature, viscosity, density, and pressure.
12. Use different combinations of PTFE or rubber lining and electrode materials such as Hc, Hb, 316L, Ti, etc. to meet the needs of different media.
13. There are various flowmeter models such as pipeline type and plug-in type.
14. There are two types of integrated and separated.
15. There are two ways of AC power supply and DC power supply. • Multi-frequency excitation method for different media.
Integrated type: IP67; separated type: sensor IP68 (5 meters underwater), converter IP67.
The lowest can be measured at 0.0146m / s.
It can be judged by swapping circuit boards; it can also be judged by our company's special sensor analog generator.
What should be paid attention to when selecting the electromagnetic flowmeter?
1. First of all, what is the medium to be tested?
2. What material should be selected for the electrode?
3. What material is used for the lining?
4. What is the common flow and the minimum and maximum flow?
5. Maximum working pressure? What is the maximum operating temperature?
6. The measured medium must be conductive, and the conductivity must be greater than 1uS / cm.