Condec UPC5010 - Manual (Page 10)

Operation 7
4.2. Use either the COARSE ADJUSTMENT (2) or VENT valve (8) to obtain a specific pressure reading.
Both provide precise control. As the pressure approaches the desired value, the valve being used for
control should be rotated slowly clockwise to its closed position.
4.3. To obtain exact pressure readings, slowly rotate the VERNIER control (13) knob in the direction
required (clockwise to increase pressure) as indicated by the electronic numerical display.
Figure 2-4. Pressure Measurement Sequence (Absolute Only)
2.6 Battery Operation
When supplied with the battery, the UPC5000/UPC5010 has an internal, rechargeable 12 volt, lead acid battery
which provides a minimum of six hours of completely portable usage before having to be recharged.
An ON/OFF / BATTERY TEST switch (18) is provided to conserve energy when the instrument is not in use, and to
provide the operator with information as to the status of the battery voltage during use.
The UPC5000/UPC5010 can be operated and recharged by connecting to a standard AC outlet via the line cord
(supplied). The battery re-charge cycle time is approximately 16 to 20 hours with the
ON/OFF switch in the OFF
position. The charging circuit is designed to be left on indefinitely without adversely affecting battery life.
When selected, the momentary action BATTERY TEST switch (18) (Figure 2-4 on page 7) is used to read the
actual battery voltage. The battery voltage reading typically is between 11.5 and 13.0 volts. When the battery
voltage reads 11.5 volts, there are approximately one to two hours of useful operation left and a
low battery
indicator is illuminated. For LED display units, a red LED in the left center of the display turns on. For LCD
display units, five LED segments in the left of the display window illuminate in a "U" shape. The instrument
ceases to function when the battery voltage is 11.0 volts or less.
NOTE: The battery test should only be performed with the UPC5000/UPC5010 operating at zero PSIG (VENT valve
open) and at the conclusion of the test, the unit's ZERO button will have to be pushed again to re-zero the instrument.