HYSTERESIS DEFINITION

Hysteresis Mode (HYS): This output mode programs the sensor to control the output signals "NPN or PNP" with switch points "H-1" (output 1) and "H-2" (output 2) on the graph below.   The switch points are adjustable by touch panel and independent.  The Hysteresis is a value "h-1/h-2" to control the output signal below the switch point "H-1/H-2".  This is adjustable on the sensor and mathematically defined as:

                                 (switch point)         "H-1/H-2"

                                      MINUS

                             (Hysteresis value)     "h-1/h-2"

                                                         HYSTERESIS RANGE

WINDOW COMPARATOR DEFINITION

Window Comparator Mode: This output mode programs the sensor to provide an output signal "NPN/PNP" between switch points "A" and "B" on the graph below.  The switch points "A-1/A-2" (Low point) and "B-1/B-2" (High point) are independent and adjustable on the sensor.  The window comparator mode is sometimes referred to as a "High/Low" setting or a "Failure prediction mode".  The reference depends on the application and pressure ranges.

APPLICATIONS

• Loss control of gases hazardous to the ozone during dispensing or bottling operations.
• Filter maintenance - detection of pressure drops across filters.
• Detection of liquid levels within a closed container.
• Control of exhaust pressures for cleaning and scrubbing operations.
• Control of die bonding processes for flow detection for coating operations.
• Control of clean room pressures.