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 |
