TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook MultiFlame DF-TV7, Руководство по эксплуатации

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MULTIFLAME DF-TV7
OPTICAL FLAME DETECTOR
OPERATING MANUAL
NOSP17662
Revision 03
19
4.2.6 Cable‘s inputs (as an option)
Connection cables must pass through a cable gland (Explosion Proof certified)
For installation details, refer to the instructions provided by the manufacturer of the cable gland
used.
The unassigned cable glands entries must be blanked with explosion proof
certified plugs (M20). They are glued with Loctite (tubetanche 577) or equivalent
compound. If a plug is moved or removed, it must be glued again with Loctite or
an equivalent.
4.3 Electric Connection
Never adjust electric connections when detectors are powered. Maintenance
must be undertaken by qualified staff. Observe safety site rules.
MultiFlame DF-TV7 is a sensor with standard current output 4-20mA. The connection can be on
3 or 4 wires. The 4 wires configuration allows insulation between the signal and power loops.
We recommend using an armoured and shielded cable, type NF M 87 202, in accordance with
the requirements for hazardous areas and NF C 15 100. Other cables can be used if they are
compliant with the local regulations and standards.
The table below shows the maximum cable lengths based on the wire cross section and the supply
voltage delivered by the detection unit.
Min. single wire cross area mm²/AWG 0,5 (20) 0,9 (18) 1,5 (16) 2.5 (13)
Supply voltage 24VDC 411 m 721 m 1000 m 1000 m
Supply voltage 24VDC -10% 247 m 433 m 765 m 1000 m
NB : Those values are calculated for a minimum supply voltage of 18VDC at the sensor level and
for the maximum consumption of the detector (3.5W)