Cooper Instruments & Systems DCM 470 Voltage/Current In-Line Amplifier - Manual (Page 5)

CF 138 DCM 470 Rev. EM1000‐C
1. Determine the value of the shunt resistor needed
2. Connect the shunt resistor in the spot labeled ‘RSH’.
3. Press the pushbutton that corresponds to the shunt.
4. While the shunt is enabled and the DCM 470 is reading the simulated load, adjust the
span (described above) to the correct output.
Ex. If you are using a 2 mV/V sensor with a 350 Ohm bridge and the default 60.4 k Ohm
resistor on the DCM 470, then the simulated load would be approximately 72% of R.O.
You can then adjust the span to 7.2 VDC to correlate with this simulated load.
Switch Configurations
To change any of the switch configurations from the default settings, follow the tables
below to set your desired configuration. The figure below shows the default
configuration.
Excitation
There are two excitation values available on the DCM 470: 10 VDC (default), and 5
VDC. To select the excitation, simply flip the DIP switch to the appropriate configuration.
The excitation voltage controls the maximum output of the amplifier.