Rice Lake Intercomp CS 750 - Users Manual - Manual (Page 20)

CS750, Users
Rev R, May 2009
Page 20 of 27
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 CS750 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) 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). 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 circuit board.