Rice Lake Digital Baby Scale (RL-DBS) - Technical and Operating Instructions - Manual (Page 9)

Technical and Operating Instructions - Calibration 5
5.0 Calibration
To perform a calibration, connect the AC adaptor or install four (4) AA batteries and ensure that the scale is
sitting on a level surface.
The scale can be calibrated with either Lb or Kg weights. The unit is defaulted to calibrate with Lb weights so if
you are using LB weighs, proceed to Steps 1-7 (below). If you want to calibrate using Kg weights, perform Steps
A through D first and then proceed on to Steps 1-7.
A. Press and hold the
LB/KG
and the
ON/TARE
keys until the scale displays
CAL
. Release the keys and the
scale now displays the raw A/D counts.
B. Press the
RECALL
key and the display shows
CAL
with the LB indicator on. Press the
LB/KG
key to switch
between LB and KG and the display will now show
CAL
with the KG indicator on.
C. Press the
ON/TARE
key until the scale turns off.
D. Proceed to steps 1-7 shown in Table 5-1.
The following chart illustrates the calibration procedure.
Step Display
1 To enter the Calibration Mode, press and hold the LB/KG
key and then press the ON/TARE key to turn on the scale. - CAL -
then the raw A/D counts
2 Press the ON/TARE key again. LB: Shows C20 w/ LB indicator symbol on
KG: Shows C10 w/ KG indicator symbol on
3 When the scale returns back to zero, load the scale with a
20 LB (10 KG if calibration is set to KG), test weight and
press the ON/TARE key. LB: Shows C40 w/ LB indicator symbol on
KG: Shows C20 w/ KG indicator symbol on
4 When the scale returns back to zero, load the scale with a
40 LB (20 KG if calibration is set for KG), test weight and
press the ON/TARE key to finish the calibration. - End -
5 Unit turns off automatically
6 Remove the 40 Lb (20 KG) weight from the scale.
7 Press the ON/TARE key to turn on the scale and place a
known weight onto the baby tray to confirm the correct
weight. If not, perform calibration again.
Table 5-1. Calibration Menu