Appendix A: Model 205Dc - Cardinal 205 Installation And Technical Manual

The Model 205DC indicator has been created to change the input power requirement from
115-230VAC, 0.4A to 12-15VDC, 1.0A. The AC input filtering and AC–DC converter
components have been removed from the back panel of the indicator.
The input power wiring and the main printed circuit board power wiring have been changed.
The input power source can be provided by the user and is to be 12-15VDC, 1A. The main
printed circuit board positive (red) power wire is connected to the L1(H) terminal and the
negative (black) wire is connected to the GND terminal of the input power terminal block.
Strip ¼" of insulation from each of the power source positive and negative wires. Solder tin
each wire. Connect the positive (+) voltage source wire to the terminal marked L1(H) on the
terminal block as shown below. Connect the negative (-) voltage source wire to the terminal
marked GND on the terminal block as shown below.
The indicator can be operated as described in this manual.
IMPORTANT! The indicator is shipped with the load cell excitation voltage set to
12V (J3 open) for a 14-15 VDC source. To operate from a 12-14 VDC source, the
load cell excitation voltage MUST be set to 8V (J3 closed). Operation with the load
cell excitation voltage set to 12V will result in an unstable weight display. Refer to
Figure No. 7 for the location of J3.
Positive Wire
Negative Wire
8200-M024-O1 Rev G y 205 Installation & Technical
APPENDIX A:
MODEL 205DC
R B
E L
D K
43