Oldham Surveyor 4B - DC Power Supply; Explosimetric Detectors

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Surveyor 4B
User Manual
DC power supply
12-volt power supply
The 12 volt power supply can be connected to the points marked 0 and 12 V
on the Surveyor 4B terminal block (see Figure 2, Item2).
The Surveyor 4B must be protected on the upstream side by a fuse (630mA)
with time-delay.
The cable must have a minimum cross section of 1.5 mm².
Power consumption: 5.8 W max. (detector connected).
Explosimetric detectors
• Only explosimetric detectors of the "bridge" type can be connected to
the SV 4B.
• Surveyor 4B and the detector are connected together by a shielded
cable with three active conductors. The shielded cable is to be
connected to the earth to EMC constraints at one end only.
• Terminals C1, C2 and C3 of Surveyor 4B and the detector are to be
connected in opposite mode (Figure 3).
Figure 3 : Detector connections
Figure 2 : power supply connections
Item 1
Item 2