© Sensortech Systems, Inc. 2016 Page 2 of 16 Rev.7-2016
ST-2200 Sensor System:
The two main components in the system are:
1. ST-2200 Processor Unit (Processor) – an intelligent measurement and control unit that
connects to the Sensor Electronics Unit and provides moisture measurements via serial, 4-
20mA and front panel LED display. The Processor is also referred to as the Signal Processor.
2. ST-2200 Sensor with Attached Sensor Electronics (Sensor) – a NEMA12 rated metal
enclosure containing the moisture measurement and RF switching electronics is attached to
the bottom side of the open-frame planar sensor. The Sensor is mounted in-line on the
outside of the dryer. The Sensor with Attached Sensor Electronics is also referred to as the
Antenna.
Figure 1. ST-2200 Processor Unit
with Attached Electronics Unit