Brookfield KU-1 Viscometer - Manual (Page 8)

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III. OPTIONS
III.1 Air Purge
The air purge option (Brookfield Part No. KU-1A) allows the interior of the KU-1or KU-1Q to be
pressurized with air (or an inert gas) when the instrument is to be used in a hazardous environment
(Figure 8). A built-in pressure switch turns the instrument off when the pressure drops below 2.0
PSI (falling). The switch comes on at 10.0 PSI (rising).
Connect a regulated clean air supply which is non-corrosive to brass to the fitting shown in
Figure 8. Adjust the pressure to approximately 25 PSI.
Note: The pressure switch range is 0-40 PSI.
DO NOT CONNECT PRESSURE HIGHER THAN 40 PSI TO THE SWITCH!
Power
Cord
Purge
Fitting
Power Cord
Purge Fitting
Figure 8: Back Panel Showing Air Connector