Pagina 29 di 93 Codice doc. 1080622209
Versione: 2022_02_21
Salvo modifiche tecniche
Please check the unused cable glands to make sure that the necessary blind plugs are inserted and then tighten
the cable glands by hand.
5.1.2 Mounting the temperature sensors
Please note the following points:
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The temperature sensors must have the type of Pt suitable for the calculator (Pt 500). The calculator
identifies the temperature sensors automatically and shows the type of Pt in loop 2.
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The temperature sensors (up to DN 100) must be installed against the flow direction.
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The temperature sensors are not to be installed within the influence of other sources of heat.
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The temperature sensor cables must not be kinked, lengthened or shortened.
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Sensor cables that are too long should not be rolled up tightly into an ‘air-core coil’. The cables should
either be laid out disordered, or rolled up loosely into a wide coil which can be turned and tied into an ‘8’.
Mounting
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Loosen the two cable glands without blind plugs and glide them over the sensor cables.
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Feed the temperature sensors through the appropriate openings of the cable glands into the terminal box.
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Clamp the wires (see identification label temperature sensors) as shown in the illustration:
The inlet flow temperature sensor must always be connected to clamp 5 and 6 (inlet).
The outlet flow temperature sensor must always be connected to clamp 7 and 8 (outlet).
The color of the wires does not matter.
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Check that the connections are tight.
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Screw the cable glands tight by hand.
6
Start of Operation
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Slowly open the shut-off valves.
Check the following points:
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Is the flow meter of the right size?
