Installation
12
English
N=18
15.18364
1.26
0.60984
N=19
15.79348
1.33
0.64372
N=20
16.4372
1.4
0.6776
N=21
17.1148
1.47
0.71148
N=22
17.82628
1.54
0.74536
Power Supply
18.57164
So 22 detectors just exceeds the power supply guarantee voltage, therefore
the answer for a safe maximum number of detectors is 21.
If this is not a convenient solution then there is scope for increasing the number
by changing the power supply or using thicker (lower resistance) cable.
2.7 Earthing requirements
Earth terminals are provided on the outside of the
Xsafe Bright
enclosure
adjacent to the top-right cable entry, and internally adjacent to the left-hand
sounder out cable connector.
2.8 Cable glands
Instructions for installing appropriate glands is given below.
Unarmoured cable
Allow sufficient length of cable to the detector, fit shroud if required, pass the
cable through cable gland.
1.
Screw the gland Entry into the
Xsafe Bright
M20 cable Entry. Using two
spanners or wrenches, hold the gland Entry in position to prevent rotation
and tighten the Middle Nut until resistance is felt between the Seal and
cable. Then turn the Middle Nut through a further half to one full turn to
complete the Inner Seal.
