Vortex flowmeter is a volumetric flowmeter that measures the volumetric flow rate of a gas, vapor or liquid; it is manufactured according to the principle of Karman vortex. It is mainly used for flow measurement of industrial pipeline medium fluids, such as gas, liquid, steam and so on. When customers buy the vortex flow meters, they should also know that how to delivery and install them correctly? Below let us see how to install the vortex flow sensor.
In order not to be damaged the vortex flow meter, do not open the package before vortex flow meter received by customer.
Handle with care during the transportation, do not crash, drench, impact and vibrate.
Vortex Flow transducer should be installed in time once it arrives at the using place to avoid reducing insulativity of amplifier and metal parts being corroded etc. Pay special attention to the following things:
(1) Try not to open the package to store in any condition;
(2) Vortex flow meter Storage place should be:
a. Damp proof and rain-proof b. little mechanical vibration
c. Temperature between -35~60℃, ideal temperature is about 25℃.
(3) Should clean flow sensor meter body totally before store used vortex flow transducer.
(4) The vortex flow transducer performance will be affected if long time outdoor storage. Therefore, please install vortex shedding flow meter immediately once it is carried to the installing site.
Although we have considered bad working condition during design, in order to ensure good accuracy and stability of vortex sensor, we should pay attention to the following things when select installing location:
(1) Ambient temperature
Avoid installing in the location with large temperature change. If the flow meter will be affected by heat radiation, please take measures of heat insulation and ventilation.
(2) Ambient air
Avoid installing vortex flow transducer at the ambient with strong corrosive gas. If must be installed in corrosive ambient, should take measures of ventilation.
(3) Mechanical vibration and impact
Although vortex flow transducer has tough structure, still should install vortex flow transducer in location avoiding mechanical vibration and impact from measuring principle. If must install in location with big vibration, should install pipe bracket to buffer.
(4) Adjustable valve
Adjustable valve should be installed downstream 5D away from vortex transducer. If must be installed at upstream, straight pipe for upstream of transducer should be no less than 50D.
(5) Water hammer
When measuring steam flow on horizontal pipe, location of flow transducer must not be on low point of pipe, because this is the location where condensate liquid deposited and cause water hammer easily. For discontinuous delivering gas pipe, water hammer will happen much easier when open-close which will affect flow transducer normal measuring, what’s worse, it will damage the probe. Flow transducer should be installed in high point of pipe and install steam trap at low point of front pipe.
(6) Others
There should be enough space around vortex flow transducer to:
a. Regular maintenance, meter reading
b. Wiring, pipe installation
Vortex flow transducer must be used under certain condition. Please confirm whether the transducer is suitable to the operating condition (flowrate, pressure, temperature, explosion proof etc.) or not before installation.
After open the package, please install as soon as possible to avoid being corroded by corrosive material or damped by raining. When store used transducer, must clean inside and outside of transducer completely.
Avoid transducer being installed in place where temperature changes greatly or heat radiation occurs. If it is necessary, take measures of heat insulation or ventilation.
Avoid transducer being installed in place where corrosive atmospheres surrounding. If it is necessary, take some measures of prevention of corrosion.
Avoid transducer being installed in place with strong mechanical vibration and impact. If it is necessary to install on pipe with strong vibration, it needs to fasten pipe around transducer.
When transducer is installed on the pipe, should not use meter body as lift point to lift meter and pipeline.
Straight pipe at up & down stream should be as manual requirement, or it will affect measuring accuracy of transducer, what’s worse, will damage transducer.
Flow direction must conform with the arrow on the transducer.
During flange or pipe welding, vortex transducer should not be on the pipe to avoid damaging electronic parts.
Avoid flow transducer installed on long overhead pipe, otherwise leakage will happen between transducer and flange caused by transducer drooping. If can not avoid, fitting device for pipe must be used.
Vortex Transducer can be installed on vertical or horizontal pipe. For vertical pipe installation, flow direction should be down to up when measure liquid.
Avoid vortex transducer installed around valve exit, or open-close of valve will affect the measuring accuracy and vortex flow meter service life, even damage vortex transducer. For convenient maintenance, should install bypass pipe, especially fluid in pipeline cannot be shut down during production.
When clean pipeline, cleaning fluid should pass by-pass pipe to avoid damaging vortex flow meter; if no by-pass line, a duct should be installed temporarily to replace vortex flow meter.
Vortex Flow Meter had better be installed indoors; if outdoor installation is necessary, should take measures of moisture proof and sun proof.
There should be enough space around transducer installed to ensure convenient, wiring and regular maintenance.
Specified shielded cable should be used as signal cable and shielding layer should be fastened to metal housing of transducer. Signal cable of vortex flow meter should not be parallel to power cable, the distance between them should be over 15cm. Place them into independent steel tube would be better. Fix cable and can not be shaken.
Installing location of vortex flow transducer should be far away from electrical noise, such as large power transformer, electromotor, welding machine and strong power supply etc.
Radio interference should not be around installing location; otherwise, radio interference will affect normal operation of vortex flow transducer.
When open shutoff valve at up & down stream of transducer, it should be very slowly, and opening time should be no less than 2min.
Pressure of installing pipe should not exceed maximum rated pressure of vortex flow transducer.
When transducer parts are pressed, cannot tighten or loosen fastening screw of probe and installing bolts of flange.
