Specifications

8 DC-788 Operation Manual
display’s segments. How thorough the segment check is depends on the setting of SPC 20, Bit 2. The
default is 1: Normal (For further instructions on how to set the scale’s specifications, see
Section 3.1.2):
• If SPC 20, Bit 2 is set to 0: Fast, the scale display’s 888’s for 1.5 seconds, then blanks for 1.5
seconds. It then displays 888’s again followed by a blank display for another 1.5 seconds before
going into the normal weighing mode.
• If SPC 20, Bit 2 is set to 1: Normal, the scale’s display will test the LCD segments for each numeral
from 0 to 9, asterisks, decimal points and annunciators before going into the normal weighing mode.
4. Once the scale is on, the time interval before the scale will automatically power itself off, if there no key
is pressed and no weight is placed on the platter, is determined by SPC 00- Auto Power-Off Function.
The default is 0000: Disabled. (For further instructions on how to set the scale’s specifications, see
Section 3.1.1)
2.4.2 DC Battery Pack Replacement/Installation
An optional DC battery pack (PN 88933) for the DC-788 is available and can be purchased from RLWS to ship
with the scale or retrofit in the field. The rechargeable 6V 5.0 AH battery pack allows for up to 24 hours of scale
use without an AC power supply. It is located in the bottom of the scale base. Use the following procedure to
install or replace the battery pack.
1. Unplug the scale from power source.
2. Place scale its left side.
Do not turn the scale upside down. Always work with the scale on its side. Damage to the load cell can
occur if the scale is turned upside down.
3. Unscrew the two thumb screws holding the battery compartment door closed.
Figure 2-3. Thumb Screws for Battery Compartment
4. Unscrew the two screws holding on the battery holding bracket and remove the bracket.
Figure 2-4. Removing Battery Bracket.
5. Remove the battery from its compartment, then disconnect the black (-) and red (+) electrical leads from
the battery.
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