TP303 - Operation, Maintenance and Instructions Manual
2.2
Power Supply
Takes power of the loop-line to power the transmitter circuitry.
Power Isolation
Isolates the signals to and from the input section, the power to the input section must be isolated.
Hall Effect Sensor
Measures the position actual to the CPU.
Display Controller
Receives data from the CPU identifying which segments on the liquid crystal display use to turn on.
The controller drives the backplane and the segment control signals.
Local Adjustment
There are two switches that are magnetically activated. The magnetic tool without mechanical or
electrical contact can activate them.
Figure 2.2 - LCD Indicator
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