Practical Instrument Electronics 820 - Manual (Page 4)

Page 2
Operating Instructions
FIELD & BENCH USE
PIECAL 820 comes with a carrying case designed for hands-
free operation and a rubber boot with a built-in tilt stand. The
PIECAL 820 is held in the case by elastic straps for use with the
carrying case open. The tilt stand is easily raised by pulling the
stand until it locks into place.
CHANGING BATTERIES
Low battery is indicated by
“BAT” on the display. Approximately
one to four hours of typical operation remain before the PIECAL
820 will automatically turn off. To change the batteries; remove the
rubber boot, remove the battery door from the back of the unit by
sliding the door downward. This allows access to the battery
compartment. Replace with four (4) “AA” 1.5V batteries being
careful to check the polarity. Replace the battery door and replace
the boot. All stored configuration options (T/C Type, EZ-CHECK
Memories, etc.) are reset to factory settings when the batteries
are removed.
Note: Alkaline batteries are supplied and recommended for
typical battery life and performance. Optional rechargeable
batteries (charged externally) are available.