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Key Display

Enter :TIMER STATE

Enter Use arrow keys to set to :ON.

▽ :TIMER SET

Enter TIMER=XXXXXS Enter desired time interval. Valid values are

1 to 60000 seconds (1000 minutes).

Enter :TIMER SET

Esc Esc Standard display

Now, when you turn a load on, it will stay on for the designated time, then turn off.

To turn off timed operation, enter the menu :CONFIG:LOAD ON TIMER:TIMER STATE and set it to

:OFF.

Changing display resolution

The DC Load has two ranges of current and voltage (see the specifications). You can enable higher

resolution for voltages and currents on the lower range. Enter the menu with Shift + Menu and set

the menu element :CONFIG:RANGE SELECT to ON.

Increasing current resolution

To increase the current resolution (and change to the lower range), press Shift + . If the ▽ DC Load is

sinking a current higher than the top end of the lower range, it will be reset to the top end of the

lower range. To change back to the lower current resolution, press Shift + ▽ again.

Increasing voltage resolution

To increase the voltage resolution (and change to the lower range), press Shift + . You may see△

OVERVOLTAGE message on the display if the voltage is too high. To change back to the lower

voltage resolution, press Shift + △ again.

Short

When a test mode is on, you may press Shift + Short to emulate a short. This will draw maximum

current from the DC supply in any of the four operation modes (CC, CV, CW, or CR). In CC, CV, or

CR mode, you may press Shift + Short to stop the short. The DC Load will return to its previous

operation. However, in CW mode, the short current will continue to be drawn; to stop the short, you

must press the On/Off key

Note: When emulating a Short while in CV mode, the current software limit may trigger the DC load

Input to turn Off, provided the current limit is reached. This does not affect the programmed settings

and the DC load will restore the previously programmed values once the Short condition is removed.

Battery test

The battery test feature measures the time it takes for a battery voltage to drop to a specified value

while drawing a constant current from the battery. When the voltage at the DC Load's terminals

reaches the specified voltage, the test is ended and the integrated current (i.e., charge supplied by

8500 DC Load Series Version: February 4, 2009 Page 32 of 76

BK Precision 8500 User Manual

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