1. Installation Prior to installation of the flow sensor, the system should be flushed. Correct flow sensor position (flow or return) appears from the front label of MULTICAL®. The flow direction is indicated by an arrow on the side of the flow sensor.
Installation angle of ULTRAFLOW® 54 ULTRAFLOW® 54 can be installed horizontally, vertically, or at an angle. ULTRAFLOW® 54 is normally installed horizontally, the lifting rings being vertically oriented. The ultra-sound paths in the flow sensor tube will thus be vertical, which is optimal in connection with possible stratification of the medium.
Mounting of ULTRAFLOW® 54 electronics box At medium temperature below 90°C < 90°C) and at medium temperature less than 5°C below ambient temperature (T > - 5°C) the electronics box can be mounted directly on the flow sensor housing via the factory mounted fitting.
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It can also be an advantage to use the enclosed distance piece if the flow sensor housing is insulated and the electronics box must be removed from the insulation. If the required position of the electronics box differs from standard position, the distance piece can be mounted with the enclosed collar band around the flow sensor housing.
1.2.1 Orientation of flow sensor electronics box Mounting the electronics box, the cable connections must always be horizontally or downwards oriented in order to avoid the risk of water and condensation being led into the electronics box via the cables. This is especially important in humid environments, when ULTRAFLOW®...
Straight inlet ULTRAFLOW® 54 requires neither straight inlet nor outlet in order to fulfil the Measuring Instruments Directive (MID) 2004/22/ EC and EN 1434:2007. A straight inlet section will only be necessary in case of heavy flow disturbances before the sensor.
2. Electrical connection Connection to calculator Signal cable length: MULTICAL® 601/602/801 ULTRAFLOW® 54 DN150-250 output module 2-wire connection 3-wire connection < 10 m < 100 m *) < 25 m < 25 m *) MULTICAL® 601/602 must have sensor connection type D and external 24 VDC supply. 2.1.1 ULTRAFLOW®...
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Diagram 1 – Three-wire connection, MULTICAL® 602/801 via output module (Y=2). Cable length up to 25 metres. Diagram 2 – Three-wire connection, MULTICAL® 602/801 via output module (Y=3). Cable length up to 25 metres. Diagram 3 – Two-wire connection, MULTICAL® 801 via output module (Y=2). Cable length up to 100 metres.
Connection of power supply If ULTRAFLOW® 54 is mounted with a galvanically coupled output module and connected to MULTICAL®, the flow sensor is supplied by the calculator. Therefore, the flow sensor must not be fitted with a supply of its own. ULTRAFLOW®...
24 VAC This PCB module is galvanically separated from the 24 VAC mains supply and is both suitable for industrial installations with joint 24 VAC supply and individual installations, which are supplied by a separate 230/24 V safety transformer in the main electrical panel. The module includes a double-chamber safety Diagram 6 transformer, which fulfils double-isolation...
2.2.4 Cable connections Cable dimension of connections: 4.5…10 mm. Tightening torque: 4 Nm Please note: If ULTRAFLOW® 54 is mounted with a galvanically coupled output module, or if a galvanically separated output module is used in combination with battery supply the unused cable connection must be sealed off as shown in Figure 2.2.5 Change of supply unit The supply unit of ULTRAFLOW®...
4. Calculator with two flow sensors MULTICAL® 601/602/801 can be used in various applications with two flow sensors, e.g. leak surveillance or open systems. When two ULTRAFLOW are direct connected to one MULTICAL® 601/602/801, a close electric coupling between the two pipes ought to be carried out as a main rule.
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