Wiring
Power Supply Wiring
Table 4–1. DC power wiring for 9719B/9720B scintillation detectors
User Power Supply (+24Vdc, 0.5 A) Detector
+ J1-2
- J1-1
With the AC power board installed, the scintillator detector may be
operated using either 115 or 230 Vac ± 15%. The AC supply voltage is set
by the 115/230 Vac selector switch. The selector switch is located on the
AC power board, below the connectors and just above the transformer. To
access the selector switch, it is necessary lift the detector chassis several
inches out of the housing.
AC Power C Power
If both AC and DC input power are supplied to the detector, the detector
will draw power from whichever source provides the higher DC voltage.
Caution Applying 230 Vac with the selector switch in the 115 Vac
position will damage the equipment. ▲
Caution For reliable operation and to maintain safety approval, the F1 fuse
on the AC power board must only be replaced with an approved fuse.
Reference installation wiring diagram 868577 ▲
Table 4–2. AC power wiring for 9719B/9720B scintillation detectors
AC Power Supply Detector
N J17-1
L J17-2
Note Connect the AC wiring Earth ground to the internal safety ground
terminal as shown in the wiring diagram.
▲
4-8 DensityPRO+ Installation Guide Thermo Fisher Scientific
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