FS-9100OM
– REV B
6
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The Flame Tracker Lite is connected to the control system as a typical two wire current transmitter. It can be
operated from any well-filtered dc supply from 12 volts to 30 volts. The supply should be capable of supplying
100 milliamps.
The power supply must be protected to prevent the supply voltage from exceeding 30 volts in normal use and
more than 42 volts under transient conditions. The sensor is protected against reverse polarity. The maximum
value for the sense resistor plus the wire resistance is dependent on the supply voltage. At 24 volts this value
is 560 ohms. Resistance values for other voltages can be determined from the chart in Figure 2.
FIGURE 2
– MAXIMUM RESISTANCE VS. OPERATING VOLTAGE
