the rear panel must be connected to the PBG7 45kV output module. The IEC power input
must be connected to an outlet on the PBG7 control and trigger module.
Use
The equipment should be mounted in a suitable 19” rack. The rear panel and front panel
connections should be added depending on the configuration required (PBG1, PBG5 or PBG7)
as shown in the diagram below.
Note that ac power for the PBG5 four channel trigger module and PBG7 HV power supply
module must be taken from the PBG7 control and trigger module using the IEC male/female
leads supplied. The front panel switch will therefore switch power to all three modules. This is
important for the software to power up correctly. The four channel delay module is completely
independent and should have its independent power supply. The external ac power required is
110 to 240V 50 or 60Hz, approx 250W.
The system is air cooled and at maximum repetition rate the air cooled system will dissipate
approximately 250W of thermal power, consequently it requires an adequate and unobstructed
flow of clean air.
RF emission from the circuitry inside the PBG5 four channel trigger module and particularly
the PBG7 45kV output module is severe, the modules rely upon the integrity of their enclosures
to contain the radiation. Further, because of the high power and high frequency requirements
the the modules use their chassis as ground return and screen. Therefore it is important for
correct operation that all covers remain in place, all screws and fasteners remain secure, and the
equipment is earthed via the power lead.
The PBG5 four channel trigger module, PBG7 45kV output module and PBG7 HV power
supply module are controlled and tested by the microprocessor in the trigger unit by means of
the various control and monitor links on rear panels. It is important that all rear panel
connections are configured correctly and all connectors with locking screws are tightened
correctly.