Minimum Analog Ranging
　Analog sensing in the Minimum sensing configu-ration means detecting an object over a 5" range with the RPS-401A-40. This 5" span can be adjusted to occur over any part of the sensors range. For example it could be adjusted to occur from 10" to 15" or 25" to 30". This is done by means of the two potentiom-eters on the sensor. This sensor has a 5 : 1 adjustment ratio on its analog output, meaning that the RPS-401A-40 has a maximum span of 36" (range 4" to 40"). The analog output can also be adjusted any-where between the 5" and 36" spans. These adjust-ments are made by the two potentiometers on the sensor. With no more then two adjustments of each potentiometer the desired range will be achieved.

Maximum Analog Ranging
　Analog sensing in the Maximum ranging configu-ration means detecting an object over a 36" range with the RPS-401A-40. This 36" span goes from the sensors minimum sensing distance (4") to its maxi-mum
sensing distance (40"). The adjustment proce-dure is the same as described in the minimum analog ranging section. The RPS-401A-80 and RPS-426A-80 in the maximum ranging configuration detect an object over a 72" range. This span goes from the sensors minimum sensing distance of 8" to its maxi-mum sensing distance of 80". This sensor also has a 5 : 1 adjustment ratio on its analog output so its minimum analog ranging capability is a span of 12". These adjustments are made by the two potentiome-ters on the sensor.

Inverted Analog Outputs
　The RPS-401A has the ability to invert its analog outputs, meaning that the current or voltage will decrease with distance. For the current output to be inverted the voltage output needs to be tied to the positive of the supply voltage of the sensor. This then will invert the current output to 20mA - 4mA. To make the voltage output inverted 10v - 0v the current output needs to be tied to the positive of the supply voltage. In the standard mode of operation (non-inverted) P1 adjusts the near point 4mA (0v) and P2 adjusts the far point 20mA (10v). In the non-standard mode of operation (inverted) P1 adjusts the near point 20mA (10v) and P2 adjusts the far point 4mA (0v).