
Product Overview:
SP-LDE series textile pulp flow meter, pulp pipeline flow meterThe induction instrument for measuring the volume flow rate of conductive medium inside the tube according to Faraday's electromagnetic induction law adopts embedded technology of single-chip microcomputer to achieve digital excitation. At the same time, CAN fieldbus is used on the flowmeter, which is the first of its kind in China and the technology has reached the leading level in China. It has been widely used in industrial technology and management departments such as chemical industry, environmental protection, metallurgy, medicine, papermaking, water supply and drainage. In addition to measuring the flow rate of general conductive liquids, flow meters can also measure the volumetric flow rate of liquid-solid two-phase flow, high viscosity liquid flow, and salt, strong acid, and strong alkali liquids.
working principle:
SP-LDE series textile pulp flow meter, pulp pipeline flow meterBased on Faraday's law of electromagnetic induction. The measuring tube of the flowmeter is a short tube lined with insulating material and non-magnetic alloy. Two electrodes are fixed on the measuring tube through the wall in the direction of the pipe diameter. The electrode tip is basically flush with the inner surface of the lining. When the excitation coil is magnetized by bidirectional square wave pulses, it will generate a working magnetic field with a magnetic flux density of B in the direction perpendicular to the axis of the measuring tube. At this point, if a liquid with a certain conductivity flows through the measuring tube, it will cut the magnetic field lines and induce an electromotive force E. The electromotive force E is proportional to the magnetic flux density B, and the product of the inner diameter d of the measuring tube and the average flow velocity V. The electromotive force E (flow signal) is detected by the electrode and sent to the converter through a cable. After amplifying and processing the flow signal, the converter can display the fluid flow rate and output signals such as pulses and simulated currents for flow control and regulation.
Product features:
The structure is simple, reliable, without moving parts, and has a long working life.
There are no flow blocking components, and there is no pressure loss or fluid blockage.
No mechanical inertia, fast response, good stability, can be applied to automatic detection, adjustment, and program control systems.
The measurement accuracy is not affected by the type of measured medium and its physical parameters such as temperature, viscosity, density, pressure, etc.
The use of different combinations of PTFE or rubber lining and electrode materials such as HC, HB, 316L, Ti, etc. can adapt to the needs of different media.
There are various types of flow meters available, including pipeline type and plug-in type.
●Using EEPROM memory to store measurement and operation data, ensuring safety and reliability.
● It has two forms: integrated and separated.
● High definition LCD backlit display.
Textile pulp flow meter, pulp pipeline flow meterLining material selection:
|
Lining material |
Performance |
Maximum medium temperature |
scope of application |
|
|
- Body type |
separated |
|
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|
Polytetrafluoroethylene (F4) |
It is the most chemically stable plastic, capable of withstanding boiling hydrochloric acid, sulfuric acid, nitric acid, and aqua regia, as well as concentrated alkali and various organic solvents. |
70℃ |
100 ℃ 150 ℃ (special order required) |
1. Strong corrosive media such as concentrated acid and alkali. 2. Sanitary media. |
|
Perfluoroethylene propylene (F46) |
Same as F4, its wear resistance and negative pressure resistance are higher than F4. |
ditto |
|
|
|
Polyfluoroethylene (Fs) |
The upper limit of applicable temperature is lower than that of polytetrafluoroethylene, but the cost is also lower. |
80℃ |
|
|
|
neoprene |
1. Has excellent elasticity, high tensile strength, and good wear resistance. 2. Resistant to corrosion in general low concentration acid, alkali, and salt media, but not resistant to corrosion in oxidizing media. |
80 ℃ 120 ℃ (special order required) |
Water, sewage, and weakly abrasive slurry. |
|
|
polyurethane |
1. Extremely strong wear resistance. |
80℃ |
Neutral strong abrasion slurry, coal slurry, mud |
|
Technical parameters:
Applicable pipe diameter: DN15~DN2600 (non-standard below DN15)
Electrode materials: 316L (stainless steel), HC (Hastelloy C), HB (Hastelloy B), Ti (titanium), Ta (tantalum)
Applicable medium: Liquid with conductivity>5us/cm
Measurement range: 0.1-10m/s (expandable to 15m/s)
Range upper limit: 0.5-10m/s, recommended 1-5m/s
Accuracy level: 0.3 level, 0.5 level, 1.0 level (differentiated by caliber)
Output signal: 4-20mADC, load ≤ 750 Ω; 0-3KHz, 5V active, variable pulse width, high-end effective frequency output: RS485 interface
Working pressure: 1.0MPa, 1.6MPa, 4.0MPa, 16MPa (special)
Fluid temperature: -20 ℃~80 ℃, 80 ℃~130 ℃, 130 ℃~180 ℃ Reference lining material
Environmental temperature: Sensor -40 ℃~80 ℃; Converter -15 ℃~50 ℃
Environmental temperature: ≤ 85RH (at 20 ℃)
Cable interface: M20 × 1.5
Power supply: 220VAC ± 10%; 50Hz±1Hz;24VDC±10%
Power consumption: ≤ 8W
Protection level: Integrated: IP65 Split type: Sensor IP68 Converter IP65
Grounding ring material: 1Cr18Ni9Ti (stainless steel), HC (Hastelloy C), Ti (titanium), Ta (tantalum), Cu (copper)
Type spectrum
| model | caliber | |||||
| SP-LDE | 15~2600 | |||||
| code | Electrode material | |||||
| K1 | 316L | |||||
| K2 | HB | |||||
| K3 | HC | |||||
| K4 | titanium | |||||
| K5 | tantalum | |||||
| K6 | platinum alloy | |||||
| K7 | Stainless steel coated with tungsten carbide | |||||
| code | Lining material | |||||
| C1 | Polytetrafluoroethylene (F4) | |||||
| C2 | Perfluoroethylene propylene (F46) | |||||
| C3 | Polyfluoroethylene (FS) | |||||
| C4 | Polyvinyl rubber | |||||
| C5 | polyurethane rubber | |||||
| code | function | |||||
| E1 | Level 0.3 | |||||
| E2 | Level 0.5 | |||||
| E3 | Level 1 | |||||
| F1 | 4-20Madc, Load ≤ 750 Ω | |||||
| F2 | 0-3kHz, 5V active, variable pulse width, output high-end effective frequency | |||||
| F3 | RS485 interface | |||||
| T1 | Normal temperature type | |||||
| T2 | High temperature type | |||||
| T3 | Ultra high temperature type | |||||
| P1 | 1.0MPa | |||||
| P2 | 1.6MPa | |||||
| P3 | 4.0MPa | |||||
| P4 | 16MPa | |||||
| D1 | 220VAC±10% | |||||
| D2 | 24VDC±10% | |||||
| J1 | Integrated structure | |||||
| J2 | Split type structure | |||||
| J3 | Explosion proof integrated structure | |||||
