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A vortex flowmeter comprising: a flow sensor operable to sense pressure variations due to vortex-shedding of a fluid in a passage and to convert the pressure variations to a flow sensor signal,in the form of an electrical signal;and a signal processor operable to receive the flow sensor signal and to generate an output signal corresponding to the pressure variations due to vortex-shedding of the fluid in the passage.
Industrial application
Vortex flowmeter is a broad-spectrum flow meter which can be used for metering,measurement and control of most steam,gas and liquid flow for a very unique medium versatility,high stability and high reliability with no moving parts,simple structure and low failure rate.And The flowmeter is relative economical because of its simple flow measurement system and easy to maintain,widely used in petroleum,chemical industry,metallurgy,food,paper,electricity, industry boiler,urban pipeline heating,water supply,coal gas and other industries.
PL123 Flange type with temperature and pressure compensation
Which is a kind of flowmeter which uses piezoelectric crystal as detecting element and outputs standard signal proportional to flow rate. The instrument can be directly matched with HLUGB-III instrument system, and can also be used with computer and distributed system to measure the flow parameters of different media. According to the detection principle of the fluid vortex street, the piezoelectric crystal which detects the vortex street does not contact with the medium, and the instrument has the characteristics of simple structure, good versatility and high stability.
Temperature and pressure compensation flowmeter is suitable for measuring vapor, saturated vapor, compressed air and so on, with higher compensation accuracy.
In gas flow control, because of the different temperature and pressure of the gas, the working pressure and temperature of the medium often change, resulting in the unsteady density of the medium, resulting in a great error, so temperature and pressure compensation is needed.
Remark:If it is high requirement on scene display, please choose this model PL123
Remark:If the scene temperature and pressure is stable, or the accuracy requirements are not high, you can choose the flowmeter without temperature and pressure compensation, thereby saving costs. Model number is PL124
Technical Parameter:
Measuring medium | Liquid, Gas, Steam | ||
Ambient temperature | -40℃~55℃ | ||
Medium temperature | -40℃~350℃ | ||
Relative humidity | 5%~90% | ||
Atmospheric pressure | 86Kpa~106Kpa | ||
Nominal path | 15mm~1500mm (greater than 300mm for plug-in structure) | ||
Nominal pressure | 1.6Mpa, 2.5Mpa, 4.0Mpa, high pressure can be customized. | ||
Accuracy | 0.5%FS, 1%FS or 1.5%FS | ||
Linearity | ≤±1.5% | ||
Repeatability | ≤0.5%,≤1.0%, | ||
Output signal | Voltage pulse, 4-20mA DC (two wire system) | ||
Communication protocol | RS485 communication, instrument can configure RS485 communication interface, select HART or MODBUS protocol. | ||
Power supply | Voltage pulse 12V DC or 24V DC Current mode 24V DC Intelligent current mode 24V DC Smart battery type 3.6V DC | ||
Load resistance | The maximum load resistance is not more than 350 ohms. | ||
Material material | 304 stainless steel | ||
Explosion proof Grade | CT4 | ||
Connection mode | 15mm~300mm flange connection or flange clamp | ||
350mm~1500mm is insertion type | |||
Protection grade | IP65,IP67 | ||
Cable interface | PG10 |
Order Sheet :
Nominal diameter(mm) | DN15-300(Pipeline) |
DN300-1500(Plug-in) | |
Connection | Flange connection |
Flange clamp | |
Special rules | |
Simple Formula | |
Ball type | |
Accuracy | 1.5(Pipe line) |
2.5(Insert) | |
Temperature and pressure | At normal temperature and pressure |
Twin extreme pressure | |
Output | No output |
Two-wire 4-20mA output | |
Pulse output | |
Power supply | DC24V |
Battery 3.6V power supply, no signal outputuses only | |
Sensor Material | 304Stainless steel |
316Stainless steel | |
Core Component Materials | 04Stainless steel Probes |
316Stainless steel Probes | |
Measuring medium | Gas |
Liquid | |
Saturated steam | |
Superheated steam |
Installation :
Wiring :
1. Pulse signal output
The three wire flow sensor with output frequency signal is powered by DC24V or DC12V power supply.
2. Standard 4-20mA current signal output
Output standard 4-20mA current signal two wire system adopts DC24V power supply.
3. RS485 communication signal output
The vortex flow meter with RS485 communication function adopts DC24V power supply and other equipment.
Four line transmission mode is adopted.
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