10
7500 Series Manual
4 7500 Series System Components
The 7500 series system consists of a control unit, an enclosure protection vent, and manual or automatic
manifold. The control unit has a touch screen display that is menu driven and will easily guide the user in
selecting pre-programmed and user-selected variables. The 7500 can be used with a digital valve/manifold
system like the 5500-MAN-... unit to make a fully automatic system. The enclosure pressure and leakage can
be monitored and, in the event of a loss in enclosure pressure, the solenoid valve can engage to restore the
defined pressure settings and/or alarm for the pressure drop. An easy-to-see display also has 4 LEDs for
system condition indication from a distance.
4.1 Control Unit
The 7500 control unit is a control device for Type Z & Ex pz purge systems and is suitable for purge time
and pressure monitoring in Class I or II, Division 2, Zone 2 or 22. It controls the volume of purge gas flowing
into the explosion-protected control cabinet, and it maintains and monitors an overpressure relative to the
ambient air when purging is complete.
The 7500 control unit can be ordered as a stand-alone unit for panel mounting to your enclosure or mounted
to a panel with the 7500-MAN-MV-01 valve in a configuration.
Control Unit Components
7500 control unit
Mounting bracket, gasket, and screws for enclosure mounting
Manual
Warning!
The conduit hub extension, 7500-HUB-AA-01, can only be mounted once to the 7500 control unit. If
removed, it cannot be reinstalled. A new conduit unit must be purchased.
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