Spectrex SafEye Quasar 950, User And Maintenance Manual, Page: 49 / 72

Installation Instructions
TM888300 Rev. (Al), August 2019 49
6.9 UV Source Wiring
6.9.1 Wiring
To install the wiring:
1
Release the back screw bolt (Figure 6, Item 15), and open the source back
cover (Figure 5, Item 14). The chamber is now exposed.
2
Remove the protective plug mounted on the source conduit/cable entry inlet,
and pull the wires through the source inlet (Figure 8, Item 4). Use a
3/4” – 14
NPT or M25x1.5 explosion-proof conduit connection/cable gland to assemble
the cable/explosion-proof conduit to the detector.
3
Connect the wires to the required terminals (Figure 8, Item 2) according to
the wiring diagram. See
Terminal Wiring , page 49 and Figure 13 in Wiring
Configurations on page 61.
4
Connect the grounding wire to the ground screw located on the exterior of the
detector (Figure 8, Item 3). The source must be well grounded to earth
ground.
5
Place and secure the source unit’s back cover by screwing on the cover and
securing the back screw bolt.
6.9.2 Terminal Wiring
The UV source contains 6 wiring terminals.
Table 12 lists the functions of each electrical terminal of the UV source.
Table 12: UV Source Wiring Options
Terminal No. Function
1 Power +24VDC
2 Return – 24VDC
3 Spare
4 Spare
5 RS-485 (+)
6 RS-485 ( – )