Loma IQ2 User Manual page 110

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Connecting electrical supplies
Pipeline detectors require a single-phase electrical supply. Electrical connections are made
to a connector block inside the control box.
The following illustration shows the connection arrangements at the connector block:
The main incoming earth connection is made to the
left-hand control box ground stud (in a group of 3)
located just below the right-hand edge of the control
board.
• Power cabling must be rated at no less than 5A current carrying capability and be routed
into the control box by a suitable watertight gland. The power input gland hole is on the
extreme left of the control box when facing the controls.
• Power cabling for a UL approved model is 20-16AWG fed from a locally positioned switch
or circuit breaker that is within easy reach of the operator. The breaker must be labelled as
the disconnecting device for the equipment. Cable tightening torque 5.5in/lbs routing into
the control box as in the above diagram
NOTE: Do not use rigid conduit of any type. Rigid conduit can lead to vibration being
transmitted to the head, resulting in spurious triggering.
• Open the control box door and remove the safety cover angled terminal access plate only
from the power supply cover. Place it in the bottom of the control box door.
• Split the cable inside the box and cut the wires to suitable lengths.
• On pipeline detectors the power plug is also the disconnection device.
• The power supply cable should not exceed 3m.
• If armoured cable is used the armour wires must be connected to protective earth (PE).
• Do not position the detector so that it is difficult to remove the power plug.
Disconnecting the Power
Before disconnecting the metal detector from power, removing the power plug or loosening
the power terminals ensure that signal cables to other machines are disconnected first.
9094
JP301
TP303
Live
Neutral
93
Installing the metal
detector

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