INST
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PULSE Installation, Commissioning and Servicing Manual - Revision 19
9.2 Mains
As shown in Figure 7 the mains power supply connector block varies between a dispenser
and single phase pump.
Installers may need to affix an earth bonding strap to the chassis of the junction box
where required by local regulations.
9.3 Comms
POS cabling is connected into a common connector block as shown in Figure 8.
Comms
Connectors
Earth Bonding
Strap Connection
Power Supply
Connectors
Figure 7�
Single Phase Pump Connector Blocks
9
ELECTRICAL
TOTAL ELECTRICAL ISOLATION BEFORE ACCESS
Any procedure that requires access to electrical components of the electronics of a
dispenser/pump requires total electrical isolation of that unit. Understand the function
and location of this switch or circuit breaker before inspecting, installing or servicing
Gallagher equipment.
Before powering up check the tightness of all terminals and plugs.
9.1 General
Mains power and comms cables are connected within the Ex ‘e’ certified enclosure
(junction box) located in the hydraulics cabinet. Labels showing connection details are
located on the inside of each junction box cover.
Where a SWA cable is terminated within the enclosure, a lock-nut will be required to
ground the certified IECEx ‘e’ cable gland to the internal earthing strap.
Unused entry holes must be blanked with a suitable certified IECEx ‘e’ blanking plug.
No connections between system components is required at installation. All internal wiring
is connected prior to despatch.
