Rice Lake Intercomp CS 5000 - Users Manual - Manual (Page 19)

CS5000, Users
Rev V, January, 2008
19
Problem: rechargeable battery life has decreased
Fix:
The rechargeable batteries provided by Intercomp are high quality, high capacity
Ni-Cad. However, all Ni-Cad batteries can exhibit some “memory” effects if they
are repeatedly discharged to a certain point before recharging. If your observed
battery life has decreased significantly from its initial performance, you may want to
try this battery-conditioning sequence: Fully discharge the batteries by running the
CS5000 until the display blinks “LB
LB LB LB” (low battery) and keep the unit powered until
the batteries are fully discharged. Following this, recharge the battery completely
(typical charge time is 16 hours). This discharge/recharge cycle may need to be
repeated. If this does not help, you may need to replace the Ni-Cad batteries.
Problem: scale shuts off by itself
Fix:
Check the battery holder terminals. They may be bent and not making solid
contact. If the scale turns off immediately after you take your finger off the button,
there may be defective power circuitry or a bad keypad.
Problem: scale “locks up”
Fix:
The microprocessor (U1) on the MPC board may need to be replaced. The
microprocessor support circuitry could also be bad.
Problem: weights jump or drift
Fix:
Try increasing the sample rate as described in the calibration section (pg. 13).
Pertains to A/D board: If this does not help, the problem could be a bad load cell,
defective amplifier (U5), bad A/D chip (U6), or contamination on the A/D circuit
board.