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CF 26 5 4/2001
Transducer Excitation
The bridge excitation supply voltage is set by SWB-1 and potentiometer E. Set SWB-1 ON for a fixed 10 Volts. This
will provide the best temperature stability. The supply can be adjusted between 5 and 10 Volts by setting SWB-1
OFF and adjusting potentiometer E. The supply will deliver up to 120mA current at any voltage setting to power up
to four 350-ohm sensors.
SWB-1 Excitation Voltage
ON Fixed 10 Volts
OFF Adjustable
SWA-1 Tare Range
OFF -3 mV to +15 mV
ON +15 mV to +25 mV
SWA-2 Zero Current
OFF 4 mA
ON 0 mA
SWA-4 SWA-5 Span Range
ON ON 40 mV to 50 mV
OFF ON 20 mV to 40 mV
ON OFF 10 mV to 20 mV
OFF OFF 5 mV to 10 mV