Air Pressure Verification

To test air pressure inside the irradiator, remove one cover plate screw and, using a magnehelic, place the end of the tube over the screw hole (see Figure 43). For the I310M/I311M and I310M-D/I311M-D, the pressure should be 447-596 Pa (1.8-2.4” H2O) with respect to outside (ambient) air.

For the I310MB irradiator (modular blower), pressure should be 447 - 822 Pa (1.8 to 3.3” H2O).

HV Connector (J11)

Cover Plate

Cover

Screws

Figure 43. Air Pressure Test Points

Air Pressure Switch Replacement

1. Remove the irradiator cover.

Installation, Operation, and Maintenance Manual # 509252 Rev R 105