Vega VEGACAP 65 Operating Instructions Manual

Also see for VEGACAP 65: Operating instructions Operating instructions Operating instructions Operating instructions

5 Connect to power supply5.1 Prepare the connectionAlways keep in mind the following safety instructions:l Connect only in the complete absence of line voltageConnect the operating voltage according to the following diagrams.Take note of the general installation regulations. As a rule, connectVEGACAP 65 to vessel ground (PA), or in case of plastic vessels, tothe next ground potential. On the side of the instrument housing thereis a ground terminal between the cable entries. This connection servesto drain off electrostatic charges.The data for power supply are specified in chapter "Technical data".The instrument is connected with standard two-wire cable withoutscreen. If electromagnetic interference is expected which is above thetest values of EN 61326 for industrial areas, screened cable should beused.Use cable with round cross-section. A cable outer diameter of 5 … 9 mm(0.2 … 0.35 in) ensures the seal effect of the cable gland. If you areusing cable with a different diameter or cross-section, exchange theseal or use a suitable cable gland.5.2 Connection procedureWith Ex instruments, the housing cover may only be opened if there isno explosive atmosphere present.Proceed as follows:1 Unscrew the housing cover2 Loosen compression nut of the cable entry3 Remove approx. 10 cm (4 in) of the cable mantle, strip approx.1 cm (0.4 in) insulation from the ends of the individual wires4 Insert the cable through the cable gland into the sensor5 Lift the opening levers of the terminals with a screwdriver (seefollowing illustration)6 Insert the wire ends into the open terminals according to the wiringplan7 Press down the opening levers of the terminals, you will hear theterminal spring closing8 Check the hold of the wires in the terminals by lightly pulling onthem9 Tighten the compression nut of the cable entry. The seal ring mustcompletely encircle the cable10 If necessary, carry out a fresh adjustmentNote safety instructionsSelect power supplySelecting connectioncableVEGACAP 65 • - transistor (NPN/PNP) 155 Connect to power supply30018-EN-090604