Tecfluid FLOMAT Series Instruction Manual
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Contents
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13Example:Suppose a pipe of 300 mm inner diameter (DN300) and 5.5 mm thick. In the chart we cansee that the distance that the pipe adaptor must extend above the external wall is H = 60.5 -s = 60.5 - 5.5 = 55 mm.The values in the chart are calculated considering the gasket supplied with the instrument,which is 3 mm thick. If the thickness of the gasket is changed, the value of H will change.The equation to calculate H’ for a gasket of thickness d is the following:H’ = H + 3 - dIn the previous example, if the gasket was 5 mm thick, the distance that the adaptor shouldextend above the external wall would be H’ = 55 + 3 - 5 = 53 mm.Drill a 48.5 mm diameter hole in the pipe to insert the pipe adaptor and weld the fitting to thepipe.If the pipe is made of concrete or other material to which the pipe adaptor cannot bewelded, a clamp-on accessory or saddle should be used. In this case, please contact us toinform about the suitable sensor length.The axis of the pipe adaptor should be perfectly perpendicular to the pipe axis.5.2 Sensor mountingOnce the pipe adaptor is mounted, place the flat seal in its position and install the sensorwith the arrow pointing in the flow direction. The electrodes must be perfectly perpendicularto the pipe axis.In order to align the sensor, the two bolts or pins situated in each side of the cylinder in thetop of the FLOMAT sensor must be aligned with the axis of the pipe and the arrow pointingin the flow direction.5.3 Tightening torqueThe tightening torque for the flange screws should not exceed 7.1 Nm.The tightening torque for the threaded fitting should not exceed 21 Nm.5.4 Electronic converter connectionSee point 6.1 on page 14.5.5 Electronic converter programmingFLOMAT sensor is insertion type, so it can be installed in pipes with different diameters.NOTE: It is essential to program the internal diameter of the pipe, in order that theconverter can indicate the correct flow rate.Programming of the pipe diameter is done by means of the software Winsmeter XL1 asindicated in point 7.4.1 on page 24. |
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