BC Biomedical PS-2010, User Manual

Page: 12 / 20

4
representation. This waveform is then sent through a resistor network, developing the
appropriate signals on the output terminals.
Lead Test Terminals
There are two test terminals on the top of the unit that allow for a quick test of the
continuity of the lead cables. Connecting one end of the cable to one terminal and the
other end to the other terminal will test the cable. If the cable is OK (less than 1000
ohms), the LEAD TEST LED in the lower left of the face will light.
Power Keys
The keys control the power for the unit.
Auto Power Off
The unit will automatically turn off after 10 minutes of no key activity to conserve the
battery.
To override this feature and keep the unit on continuously, depress the key twice
after the unit is on. This will keep the unit on until it is manually turned off. The “Low Batt”
LED will illuminate for 3 sec to indicate that the Auto Power Off feature has been turned off.
Percent of Battery Life Indicator
The unit provides an indication of the Percent of battery life left on the 9 Volt Alkaline
Battery. An analog to digital converter monitors the battery voltage. Continuously holding
down the key will change the 10 waveform LEDs into a Percent of Battery Life
display, with each LED representing 10% intervals. The indicator will strobe up to the